Nikolaos Katsoulas

Scopus Publications

Multispectral AI-driven imaging for detection of downy mildew and gray mold in grapevines
Dimitrios Kapetas, Panagiotis Christakakis, Ioannis Naounoulis, Ioannis Vagelas, Sofia Faliagka, Eleftheria Maria Pechlivani, Nikolaos Katsoulas
Smart Agricultural Technology, 2026
• Dual-head SegFormer enables robust grape disease segmentation • Multispectral and depth data improve disease detection accuracy • YOLO-derived masks boost leaf segmentation IoU by over 11% • 15-channel fusion enhances pixel-level classification performance • Framework supports UAV and robotic precision agriculture systems Downy mildew ( Plasmopara viticola ) and gray mold ( Botrytis cinerea ) are among the most destructive grapevine diseases worldwide, causing substantial yield losses and compromising fruit quality. Traditional diagnostic methods based on visual assessment and microscopic examination are time-consuming, labor-intensive, and require considerable expertise. This study presents a novel computer vision approach for automated grape disease detection by combining instance and semantic segmentation techniques on multispectral imagery. A dataset of 451 captures comprising RGB and five-band multispectral images (460, 540, 640, 780, 880 nm) was collected from open-field vineyards, including healthy, gray mold–symptomatic, and downy mildew–symptomatic leaves. Two complementary approaches were developed: (i) a YOLOv11-based instance segmentation model for rapid leaf identification, and (ii) a dual-head SegFormer architecture for semantic segmentation incorporating 15 input channels, including RGB, multispectral bands, derived vegetation indices, YOLO-generated masks, and depth information. The dual-head SegFormer includes a primary multiclass segmentation head and a secondary binary head for leaf–background discrimination, with consistency regularization between heads to enhance performance. The YOLOv11 model achieved 89.7% mAP50 for leaf segmentation. The SegFormer-based model achieved an overall mean IoU of 75.22%, an F1-Score of 83.53% and a single-class leaf segmentation IoU of 91.79%. Disease-specific segmentation performance was high, with gray mold achieving 94.32% IoU and an F1-score of 97.08%, while downy mildew achieved 75.5% IoU and an F1-score of 86.04%. The integration of multispectral channels and derived indices improved mean IoU by 3–5%, while the inclusion of YOLO-derived masks and depth information from the Depth Anything V2 model increased single-class IoU by more than 11%. The proposed framework demonstrates strong capability for disease-specific detection and is well suited for UAV- and ground robotics–based precision agriculture applications.
Adaptation of the VegSyst model to predict crop nutrient uptake and water needs for precise soilless crop fertigation in greenhouses
Sofia Faliagka, Ioannis Naounoulis, Marisa Gallardo, Nikolaos Katsoulas
Irrigation Science, 2026
Precision fertigation involves the precise application of water and fertilisers at optimal doses and frequencies, tailored to the weekly needs of the crops. In the present study, the existing VegSyst model was (i) adapted for soilless crop fertigation and (ii) validated for dry matter production (DMP) and uptake of macronutrients N, P, K and Ca in cucumber and tomato crops. The adaptation consisted of applying the VegSyst model together with climate forecast and a greenhouse climate model to predict the dry matter production of the greenhouse crop, and subsequently apply a simplified version of the Penman-Monteith (P–M) equation to predict the crop irrigation requirements, enabling nutrient requirements to be tailored to expected weather conditions. To validate the performance of the model, three experiments were conducted in a soilless greenhouse, cultivating cucumber and tomato crops. Two fertigation treatments were employed: (a) a conventional approach, reflecting the prevailing regional practice, where plants received a nearly constant nutrient concentration throughout the cultivation period, and (b) an improved approach adjusting nutrient concentrations on a weekly basis based on weather predictions and the predicted crop nutrient uptake. The primary objective of the model is to support its integration into a decision support system, providing greenhouse farmers with a tailored nutrient recipe aligned with crop requirements. This integration aims to mitigate water and nutrient waste in agriculture. Notably, in real-case scenarios, deploying the model led to a remarkable increase in agronomic efficiency. Simultaneously, there was a reduction in nitrate and phosphate leaching in the cucumber trials (up to 22% and 40%, respectively), without compromising overall productivity.
AI-Based Potato Crop Abiotic Stress Detection via Instance Segmentation
Emmanouil Savvakis, Dimitrios Kapetas, María del Carmen Martínez-Ballesta, Nikolaos Katsoulas, Eleftheria Maria Pechlivani
AI Switzerland, 2026
Background: Automated monitoring of crop health and the precise detection of abiotic stress, such as herbicide damage, are demanding challenges for modern agriculture. Abiotic stresses are a demanding challenge for modern agriculture, responsible for up to 82% of yield losses in major food crops. To address this, researchers are increasingly leveraging artificial intelligence (AI) to automate the detection and management of these stressors. Methods: In particular, this paper presents an instance segmentation framework to precisely detect interveinal chlorosis and leaf curling on potato leaves, two common symptoms of herbicide damage and soft wind. Within the context of precision agriculture and the need to address the inherent ambiguity in manual leaf assessment, this study employs a partial label learning approach to refine the dataset. This method utilizes an EfficientNet-b1 model to classify ambiguous samples, generating high-confidence pseudo-labels for instances that are difficult to categorize visually. The core of the proposed framework is a Mask2Former model, which is first fine-tuned on general potato leaf dataset to enhance its segmentation capabilities and then transferred on the refined, pseudo-labeled dataset. Results & Conclusions: This two-stage approach yields a highly accurate segmentation tool, achieving 89% mAP50 and a pseudo-label classification accuracy of 95%, designed for integration into smart agriculture systems like ground level robotics or unmanned aerial vehicles for real-time, automated crop monitoring.
Corrigendum to “Capturing the physiological and growth dynamics of cucumber cultivated in coupled and decoupled aquaponic systems” [Scientia Horticulturae Volume 351, September 2025, 114377]
Anastasia Mourantian, Maria Aslanidou, Eleni Mente, Nikolaos Katsoulas, Efi Levizou
Scientia Horticulturae, 2026
Assessment of Future Water Stress of Winter Wheat and Olive Trees in Greece Using High-Resolution Climate Model Projections
Angeliki Elvanidi, Persefoni Maletsika, Nikolaos Katsoulas, Giorgos Papadopoulos, Dimitrios Melas, Kostas Douvis, Ioannis Faraslis, Stavros Keppas, Ioannis Stergiou, Anastasia Poupkou, Dimitrios Voloudakis, John Kapsomenakis, Dimitris K. Papanastasiou
Agronomy, 2026
Climate change is expected to increasingly intensify the water stress that directly impacts crop productivity in the near future. This study integrates the crop water stress index (CWSI) with high-resolution regional climate simulations produced by the weather research and forecasting (WRF) model to evaluate water stress that winter wheat and olive trees will potentially experience in Greece in the future. Decadal, high-resolution climate simulations were generated for both the present and near-future periods using the most recent shared socioeconomic pathways (SSP) framework. A bias-corrected dataset based on 18 models from the Coupled Model Intercomparison Project 6 was used for boundary conditions to mitigate errors associated with individual global model biases. Projections indicated a mean air temperature increase of 1.1–1.7 °C and a relative humidity decrease of up to 3.5%. Mean CWSI increases of up to 6% and 4% were projected in most of the country for winter wheat and olive trees, respectively. The water stress of the winter wheat was also assessed over the three growing stages defined by the FAO. The analysis showed that water stress may occur during all growing stages, inducing potential impacts on tillering, photosynthetic efficiency, biomass accumulation, or yield. Additionally, a water stress threshold (i.e., CWSI > 0.5) was applied for both species in order to carry out a spatial assessment of the water stress that is projected to occur in the future in key winter wheat-, olive oil- and table olive-producing Greek regions. The findings of this study can support the irrigation scheduling and the development of climate-resilient agricultural practices in Greece. The modeling framework that was established in this study can also be applied to other crops and regions in the Mediterranean.
Evaluation of a Three-Level Cascade Soilless System Under Saline Greenhouse Conditions
Eleni Karatsivou, Angeliki Elvanidi, Nikolaos Katsoulas
Horticulturae, 2025
A three-level cascade hydroponic system was designed to enhance resource efficiency by reusing drainage solutions across sequential crops: tomato (primary-donor crop), herbs (mint, peppermint; secondary receivers from primary), and halophytes (lemon balm, sea fennel; tertiary receivers from secondary). The aim was to address salinity, a common challenge in hydroponics limiting plant growth and resource use. Two fertigation strategies were applied to secondary and tertiary crops to simulate salinity, with electrical conductivity (EC) increasing weekly by 1 dS m−1 to reach 9 dS m−1 for secondary and 11 dS m−1 for tertiary crops. Control (S1) used fresh nutrient solution (FS), while the recycling treatment (S2) used tomato drainage with added NaCl. For tertiary crops, the control (S3) received a salinity-enriched FS, and the recycling treatment (S4) reused 70% of secondary crop drainage combined with 30% of its own, plus NaCl to reach target EC. Under moderate salinity (9 dS m−1), mint produced 2.5 kg m−2, whereas lemon balm dropped 16.7%, showing sensitivity; peppermint was more tolerant. Sea fennel showed resilience under high salinity (11 dS m−1), with high chlorophyll (97.2) and improved ion uptake. The system reduced nutrient and fertilizer use by 86–88%, highlighting potential for sustainable nutrient recycling and efficient crop production.
Sustainable greenhouse microclimate modeling: A comparative analysis of recurrent and Graph Neural Networks
Emiliano Seri, Marcello Petitta, Chryssoula Papaioannou, Nikolaos Katsoulas, Cristina Cornaro
Building and Environment, 2025
The integration of photovoltaic (PV) systems into greenhouses not only optimizes land use but also enhances sustainable agricultural practices by enabling dual benefits of food production and renewable energy generation. However, accurate prediction of internal temperature is crucial to ensure optimal crop growth while maximizing energy production. This study introduces a novel application of Spatio-Temporal Graph Neural Networks (STGNNs) to greenhouse microclimate modeling, comparing their performance with traditional Recurrent Neural Networks (RNNs). While RNNs excel at temporal pattern recognition, they cannot explicitly model directional relationships between environmental variables. Our STGNN approach addresses this limitation by representing these relationships as directed graphs, enabling the model to capture both environmental dependencies and their directionality. We benchmark RNNs against directed STGNNs on two 15-min resolution datasets from Volos (Greece): a four-variable, driver-response campaign (2020) and an eight-variable, feedback-rich campaign (2024) that adds PAR and CO 2 . In the 2020 case the RNN attains near-perfect accuracy, outperforming the STGNN. When additional drivers are available in 2024, the STGNN overtakes the RNN ( R 2 = 0 . 905 vs 0.740), demonstrating that explicitly modelling directional dependencies becomes critical as interaction complexity grows. These findings indicate that graph-based models become worthwhile when new sensors create cross-links that a sequence model cannot untangle. This insight helps practitioners balance model complexity against instrumentation cost and supplies a fast empirical core for real-time digital twins that jointly optimise crop yield and PV yield in agrivoltaic houses. • Compare RNN and directed STGNN for greenhouse temperature prediction. • RNN already saturates accuracy in 4-variable “weather-only” 2020 data. • Adding PAR and CO 2 lifts STGNN test R 2 from 0.74 to 0.905. • Results pinpoint the tipping-point where graph models beat sequence nets. • Insights guide sensor investment and enable real-time digital-twin control.
Projected Heat-Stress in Sheep and Cattle in Greece Under Future Climate Change Scenarios
Dimitris K. Papanastasiou, Athanasios I. Gelasakis, Giorgos Papadopoulos, Dimitrios Melas, Kostas Douvis, Ioannis Faraslis, Stavros Keppas, Ioannis Stergiou, Anastasia Poupkou, Dimitris Voloudakis, Athena Progiou, John Kapsomenakis, Nikolaos Katsoulas
Agriculture Switzerland, 2025
It is well established that exposure to heat-stress conditions significantly impacts the physiology, health, welfare, and productivity of both sheep and cattle. The aim of this study was to apply the Temperature Humidity Index (THI) in order to assess the impact of future climate conditions on the thermal stress exposure of sheep and cattle in Greece. The Weather Research and Forecasting (WRF) model was used as a high-resolution regional climate model to simulate climate conditions for two decades in Greece at a 10 Km spatial resolution and a 1 h temporal resolution. The WRF model was applied to two emission scenarios, namely SSP2-4.5 (intermediate) and SSP5-8.5 (worst-case). Projections were made for the near-future decade (2046–2055), with the decade (2005–2014) serving as the reference period for comparative analysis. The data analysis indicated that under the SSP2-4.5 emission scenario, the mean temperature is projected to increase by 1.2–1.4 °C and 1.4–1.6 °C across 38% and 58% of the country’s territory, respectively. Increases higher than 1.6 °C are projected across 32% of the Greek territory under the SSP5-8.5 emission scenario. The mean THI (sheep) and mean THI (adj) (cattle) are projected to increase by 5–10% and by 4% across 74% and 82% of the Greek territory, respectively, when considering the SSP2-4.5 emission scenario. Slightly more severe mean heat-stress conditions were projected when considering the SSP5-8.5 emission scenario. The analysis of the hourly THI values showed that sheep and cattle are expected to experience heat-stress conditions during extended periods in the future, in which hot weather will prevail. Specifically, the number of severe/danger heat-stress hours is projected to double in the greater part of the country. To mitigate the adverse effects of climate-change-induced thermal stress on animal productivity, health, and welfare, the implementation of adaptation measures and best management practices is strongly recommended for sheep and cattle farmers. These measures encompass improvements in breeding strategies, livestock housing and microclimate management, nutritional interventions, and the adoption of precision livestock farming technologies. Given the outstanding economic, social, and environmental importance of sheep and cattle farming in Greece, effective adaptation to and mitigation of climate change impacts represent urgent priorities to ensure the long-term sustainability and resilience of the livestock sector.
Capturing the physiological and growth dynamics of cucumber cultivated in coupled and decoupled aquaponic systems
Anastasia Mourantian, Maria Aslanidou, Eleni Mente, Nikolaos Katsoulas, Efi Levizou
Scientia Horticulturae, 2025
• Nutrient dynamics play key-role in cucumber physiology/growth responses in coupled system. • Low K, P and Zn of leaves in coupled system synergistically account for stunted growth. • Adequate leaf N and Fe in coupled aquaponics sustain high photosynthetic performance. • Decoupled aquaponics resulted in comparable features to hydroponics in all evaluated parameters. • Decoupled aquaponics appear to address all the drawbacks associated with coupled systems. Decoupled aquaponics, an emerging area of research, has garnered interest due to its potential in overcoming the constraints identified in coupled (one-loop) aquaponics systems, thereby enhancing crop productivity. The present study employs a physiological approach to elucidate the mechanisms underlying the growth responses of cucumber in both coupled (CAP) and decoupled (DCAP) aquaponics systems, in comparison to conventional hydroponics (HP). A 90-day experiment was conducted in a pilot-scale aquaponics greenhouse, where detailed and regular measurements of various physiological and growth parameters were taken to capture their dynamics. Additionally, fruit quality parameters were assessed to complete the evaluation of the tested cropping systems. CAP plants exhibited stunted growth in terms of aerial biomass accumulation and leaf area, while anatomical features such as leaf thickness and leaf specific mass were significantly higher than those observed in HP and DCAP plants. However, the photosynthetic performance, the light use efficiency, and the photosynthetic pigments concentration were comparable among treatments. The leaf elemental analysis revealed that adequate N and Fe concentrations supported high photosynthetic rates, however, the reduced K, P and Zn levels influenced the growth profile of CAP plants. DCAP demonstrated comparable performance to HP in almost all the evaluated characteristics. Collectively, the results indicate that DCAP addressed limitations associated with coupled systems, indicating its significant potential to support the transition of conventional hydroponics towards a more sustainable cropping system.
Cascade Hydroponics as a Means to Increase the Sustainability of Cropping Systems: Evaluation of Functional, Growth, and Fruit Quality Traits of Melons
Zoe Karachaliou, Ioannis Naounoulis, Nikolaos Katsoulas, Efi Levizou
Sustainability Switzerland, 2025
The necessity of optimizing the nutrient and water efficiency in conventional hydroponics and enhancing their sustainability has given rise to the concept of cascade cropping systems. These achieve high water and resource use efficiencies, together with a lower environmental footprint, which is especially important for Mediterranean areas. However, scientific questions about the mechanisms that drive productivity in this system remain to be answered. This study aimed at a comprehensive evaluation of crop performance in cascade systems in terms of morphoanatomical and functional responses, also including product quality parameters, which influence the marketability of the fruit. In a three-month experiment, the dynamics of melon’s photosynthetic light use efficiency, pigment contents, growth parameters, and leaf compactness were assessed in a cascade system using drainage of tomato cultivation in comparison to classic hydroponic melon. The fruits’ chroma, hardness, total soluble solids, and pH were also measured. Comparable plant functional responses in the control and cascade melon plants resulted in similar growth and morphoanatomical traits. The fruit quality attributes were also found to be almost identical. It is proposed that the cascade system is both effective and sustainable in regions facing climatic and water scarcity pressures, such as those that are prevalent around the Mediterranean basin.
Evapotranspiration prediction for suitable combinations of cascade hydroponic systems
T. Ramírez, A. Elvanidi, N. Katsoulas, O. Körner
Acta Horticulturae, 2025
Adaptation of the VegSyst model for nutrient uptake prediction of a hydroponic tomato crop grown in the Mediterranean region
N. Katsoulas, S. Faliagka, I. Naounoulis, A. Bari
Acta Horticulturae, 2025
Water and nutrients use efficiency in aquaponics: effects of biostimulant application
N. Katsoulas, S. Faliagka, I. Naounoulis, A. Bari, M. Aslanidou, A. Mourantian, S. Bouras, G. Kountrias, E.M. Pechlivani
Acta Horticulturae, 2025
AI-Driven Insect Detection, Real-Time Monitoring, and Population Forecasting in Greenhouses
Dimitrios Kapetas, Panagiotis Christakakis, Sofia Faliagka, Nikolaos Katsoulas, Eleftheria Maria Pechlivani
Agriengineering, 2025
A circular tri-trophic system incorporating plants, fish, and insects turns waste into a resource: case study with the cultivation of cucumber
Efi Levizou, Anastasia Mourantian, Michalis Chatzinikolaou, Maria Feka, Ioannis T. Karapanagiotidis, Elena Mente, Christos G. Athanassiou, Konstantinos A. Kormas, Nikolaos Katsoulas
Frontiers in Plant Science, 2025
Simulating the Microclimate of a Pilot Greenhouse for the EU Project REGACE on Innovative Agri-Voltaic Technology
Cornaro, Cristina, Petitta, Marcello, Bovesecchi, Gianluigi, Miraglia Fagiano, Paolo, Voinea, Catalin, et al.
Building Simulation Applications, 2025
In Situ Nitrate Monitoring for Improved Fertigation in On-Demand Coupled Aquaponic Systems
Sofia Faliagka, Ioannis Naounoulis, Eleftheria Maria Pechlivani, Nikolaos Katsoulas
Nitrogen Switzerland, 2024
Cascade hydroponics enhanced water and nutrients use efficiency in a greenhouse cucumber-melon crop combination
Ioannis Naounoulis, Sofia Faliagka, Efi Levizou, Nikolaos Katsoulas
Scientia Horticulturae, 2024
Evaluation of productivity and efficiency of a large-scale coupled or decoupled aquaponic system
Maria Aslanidou, A. Elvanidi, Anastasia Mourantian, Efi Levizou, Eleni Mente, et al.
Scientia Horticulturae, 2024
Development of a Greenhouse Wastewater Stream Utilization System for On-Site Microalgae-Based Biostimulant Production
Sofia Faliagka, Georgios Kountrias, Eleni Dimitriou, Maria Álvarez-Gil, Mario Blanco-Vieites, Fabio Magrassi, Marta Notari, Eleftheria Maria Pechlivani, Nikolaos Katsoulas
Agriengineering, 2024
Effect of system, grafting, and harvest maturity stage on the quality of tomatoes grown in greenhouses
T. Jenkins, E.D. Pliakoni, C. Rivard, M. Aslanidou, N. Katsoulas
Acta Horticulturae, 2024
Valorization of Monoraphidium sp. microalgal biomass for human nutrition applications
Despoina Georgiou, Stylianos Exarhopoulos, Aggelos Charisis, Savvas Simitsis, Georgia Papapanagiotou, Christina Samara, Matina Katsiapi, Georgios Kountrias, Sofoklis Bouras, Nikolaos Katsoulas, Ioannis T. Karapanagiotidis, Christos Chatzidoukas, Eleni P. Kalogianni
Journal of Applied Phycology, 2024
Exploring the Potential of Biostimulants to Optimize Lettuce Cultivation in Coupled and Decoupled Aquaponics Systems: Growth Performance, Functional Characteristics and Metabolomic Analysis
Eirini Chandrou, Sofia Faliagka, Anastasia Mourantian, Marios Georgios Kollaros, Katerina Karamanoli, Eleftheria-Maria Pechlivani, Nikolaos Katsoulas, Efi Levizou
Horticulturae, 2024
Estimating cucumber crop coefficients under different greenhouse microclimatic conditions
Georgios Nikolaou, Damianos Neocleous, Evangelini Kitta, Nikolaos Katsoulas
International Journal of Biometeorology, 2023
Estimation of Crops Future Irrigation Water Needs in a Mediterranean Plain
Dimitris K. Papanastasiou, Stavros Keppas, Dimitris Melas, Nikolaos Katsoulas
Sustainability Switzerland, 2023
Nutrients Use Efficiency in Coupled and Decoupled Aquaponic Systems
Maria Aslanidou, Angeliki Elvanidi, Anastasia Mourantian, Efi Levizou, Eleni Mente, Nikolaos Katsoulas
Horticulturae, 2023
FAME properties, bio-oil productivity and carbon yield coefficient of Chlorella sorokiniana grown with low and high initial nitrogen concentrations
G Papapolymerou, N Gougoulias, M.N. Metsoviti, N Katsoulas, I.T. Karapanagiotidis, D Kasiteropoulou, A Mpesios, A Papadopoulou
Sustainable Chemistry and Pharmacy, 2023
Performance Evaluation of a Cascade Cropping System
Eleni Karatsivou, Angeliki Elvanidi, Sofia Faliagka, Ioannis Naounoulis, Nikolaos Katsoulas
Horticulturae, 2023
Design and Optimization of a Hybrid Solar–Wind Power Generation System for Greenhouses
Catherine Baxevanou, Dimitrios Fidaros, Chryssoula Papaioannou, Nikolaos Katsoulas
Horticulturae, 2023
Assessment of the Priestley-Taylor coefficient and a modified potential evapotranspiration model
Georgios Nikolaou, Damianos Neocleous, Evangelini Kitta, Nikolaos Katsoulas
Smart Agricultural Technology, 2023
Artificial neural network based on multilayer perceptron algorithm as a tool for tomato stress identification in soilless cultivation
A. Elvanidi, N. Katsoulas
Acta Horticulturae, 2023
Machine Learning-Based Crop Stress Detection in Greenhouses
Angeliki Elvanidi, Nikolaos Katsoulas
Plants, 2023
Development of a water flow and nutrients concentration simulation model for cascade hydroponic systems
N. Katsoulas, A. Elvanidi, E. Karatsivou, V. Vassiliadis
Acta Horticulturae, 2023
Environmental impact assessment of aquaponic vegetable production: initial results
N. Katsoulas, M. Aslanidou, D.K. Papanastasiou, V. Anestis
Acta Horticulturae, 2023
Evaluation of Copper-Free Alternatives to Control Grey Mould in Organic Mediterranean Greenhouse Tomato Production
Jose Ignacio Marín-Guirao, Francisco César Páez-Cano, María del Carmen García-García, Nikolaos Katsoulas, Miguel de Cara-García
Agronomy, 2023
Basil functional and growth responses when cultivated via different aquaponic and hydroponics systems
Anastasia Mourantian, Maria Aslanidou, Eleni Mente, Nikolaos Katsoulas, Efi Levizou
Peerj, 2023
A Multidisciplinary In-Depth Systemic Analysis to Support European Green Deal Halving Pesticides Use and Loss of Nutrients: A Greek Case Study
Eleftheria-Maria Pechlivani, Anastasia Kapetanakou, Sofia Faliagka, Nikolaos Giakoumoglou, Fotini Salta, Nikolaos Katsoulas
7th International Symposium on Multidisciplinary Studies and Innovative Technologies Ismsit 2023 Proceedings, 2023
In-Depth Study Across Various Disciplines of the Agri-Food Retail Chain on Sufficient, Safe and Healthy Food
Agoustina Galitsopoulou, Eleftheria-Maria Pechlivani, Stefanos Tsachouridis, Sofia Faliagka, Nikolaos Giakoumoglou, Angeliki Elvanidi, Nikolaos Katsoulas
7th International Symposium on Multidisciplinary Studies and Innovative Technologies Ismsit 2023 Proceedings, 2023
Farmers concerns in relation to organic livestock production
Carmen L. Manuelian, Sophie Valleix, Héloïse Bugaut, Birgit Fuerst-Waltl, Luciana da Costa, Sara Burbi, Ulrich Schmutz, Adrian Evans, Nikolaos Katsoulas, Sofia Faliagka, Uygun Aksoy, Özge Çiçekli, Danuta Dróżdż, Krystyna Malińska, Lindsay Whistance, Marion Johnson, Lucas Knebl, Federico Righi, Massimo De Marchi
Italian Journal of Animal Science, 2023
The effects of replacing fishmeal by Chlorella vulgaris and fish oil by Schizochytrium sp. and Microchloropsis gaditana blend on growth performance, feed efficiency, muscle fatty acid composition and liver histology of gilthead seabream (Sparus aurata)
I.T. Karapanagiotidis, M.N. Metsoviti, E.Z. Gkalogianni, P. Psofakis, A. Asimaki, N. Katsoulas, G. Papapolymerou, I. Zarkadas
Aquaculture, 2022
Aqua-Ento-Ponics: Effect of Insect Meal on the Development of Sea Bass, Dicentrarchus labrax, in Co-Culture with Lettuce
Paraskevi Stathopoulou, Adamantia Asimaki, Panagiotis Berillis, Nikolaos Vlahos, Efi Levizou, Nikolaos Katsoulas, Ioannis T. Karapanagiotidis, Christos I. Rumbos, Christos G. Athanassiou, Eleni Mente
Fishes, 2022
Innovative sheltered horticulture in RADHORT countries
C. Kittas, W. Baudoin, E. Kitta, N. Katsoulas
Acta Horticulturae, 2022
Precise Monitoring of Lettuce Functional Responses to Minimal Nutrient Supplementation Identifies Aquaponic System’s Nutrient Limitations and Their Time-Course
Evangelia Tsoumalakou, Eleni Mente, Konstantinos A. Kormas, Nikolaos Katsoulas, Nikolaos Vlahos, Panagiotis Kapsis, Efi Levizou
Agriculture Switzerland, 2022
Editorial: Greenhouse Gas Emissions Mitigation From Agricultural and Horticultural Systems
Dietmar Schwarz, Matthew Tom Harrison, Nikolaos Katsoulas
Frontiers in Sustainable Food Systems, 2022
Silica coated insect proof screens for effective insect control in greenhouses
Sofia Faliagka, Nikolaos Katsoulas
Biosystems Engineering, 2022
Reduction in Blockage Property of UV-Blocking Greenhouse Covering Material: In Situ and Lab Measurement Comparison
Chryssoula Papaioannou, Nikolaos Katsoulas, Evangelini Kitta
Agriengineering, 2022
Effect of pH on Schizochytrium limacinum Production Grown Using Crude Glycerol and Biogas Digestate Effluent
Sofoklis Bouras, Dimitrios Antoniadis, Georgios Kountrias, Ioannis T. Karapanagiotidis, Nikolaos Katsoulas
Agronomy, 2022
Optimal design of a hybrid power generation system for greenhouses
N. Katsoulas, C. Baxevanou, D. Feidaros
VDI Berichte, 2022
Shertered horticulure adapted to different climate zones in Radhort Countries
Constantinos Kittas, Wilfried Baudoin, Evangelini Κιττα, Nikolaos Katsoulas
Italian Journal of Agrometeorology, 2022
White Flies and Black Aphids Detection in Field Vegetable Crops using Deep Learning
Nikolaos Giakoumoglou, Eleftheria Maria Pechlivani, Nikolaos Katsoulas, Dimitrios Tzovaras
5th IEEE International Image Processing Applications and Systems Conference Ipas 2022, 2022
Precimed: a simulation model for nutrient uptake prediction of a hydroponic cucumber crop grown in the Mediterranean region
N. Katsoulas, S. Faliagka, A. Bari, Y. Naounoulis
VDI Berichte, 2022
Simulation of Ca2+ and K+ concentrations in the nutrient solution of an aquaponic system
N. Katsoulas, M. Aslanidou, A. Elvanidi, A. Mourantian, E. Levizo, V. Vassiliadis, E. Mente
VDI Berichte, 2022
A Method Comparison Study between Open Source and Industrial Weather Stations †
Evmorfia P. Bataka, Georgios Miliokas, Nikolaos Katsoulas, Christos T. Nakas
Engineering Proceedings, 2021
Energy and water related parameters in tomato and cucumber greenhouse crops in semiarid mediterranean regions. A review, part I: Increasing energy efficiency
Georgios Nikolaou, Damianos Neocleous, Anastasis Christou, Polycarpos Polycarpou, Evangelini Kitta, Nikolaos Katsoulas
Horticulturae, 2021
Energy and water related parameters in tomato and cucumber greenhouse crops in semiarid mediterranean regions. A review, part ii: Irrigation and fertigation
Georgios Nikolaou, Damianos Neocleous, Anastasis Christou, Polycarpos Polycarpou, Evangelini Kitta, Nikolaos Katsoulas
Horticulturae, 2021
A web-based system for fungus disease risk assessment in greenhouses: System development
Nikolaos Katsoulas, Dimitrios Antoniadis, Andreas Nikitas
Computers and Electronics in Agriculture, 2021
Effect of shading on photosynthesis in greenhouse hydroponic cucumber crops
E. Kitta, N. Katsoulas, C. Kittas
Acta Horticulturae, 2021
Technologies and techniques of greenhouse cultivation as tools to promote development education
Ν. Katsoulas, E. Kitta, C. Kittas
Acta Horticulturae, 2021
Smart greenhouse production practices to manage and mitigate the impact of climate change in protected cultivation
N. Gruda, M. Bisbis, N. Katsoulas, C. Kittas
Acta Horticulturae, 2021
Effect of NaCl or macronutrient‐imposed salinity on basil crop yield and water use efficiency
Sofia Faliagka, Angeliki Elvanidi, Stella Spanoudaki, Alexander Kunze, Johannes F.J. Max, Nikolaos Katsoulas
Horticulturae, 2021
Responses of sweet pepper (Capsicum annum L.) cultivated in a closed hydroponic system to variable calcium concentrations in the nutrient solution
Andreas Ropokis, Georgia Ntatsi, Youssef Rouphael, Anastasios Kotsiras, Constantinos Kittas, Nikolaos Katsoulas, Dimitrios Savvas
Journal of the Science of Food and Agriculture, 2021
Basil as secondary crop in cascade hydroponics: Exploring salinity tolerance limits in terms of growth, amino acid profile, and nutrient composition
Denisa Avdouli, Johannes F. J. Max, Nikolaos Katsoulas, Efi Levizou
Horticulturae, 2021
Computational fluid dynamics modelling of the microclimate within the boundary layer of leaves leading to improved pest control management and low-input greenhouse
Hicham Fatnassi, Thierry Boulard, Christine Poncet, Nikolaos Katsoulas, Thomas Bartzanas, Murat Kacira, Habtamu Giday, In-Bok Lee
Sustainability Switzerland, 2021
Protected cultivation in Mediterranean region
Y. Tüzel, N. Katsoulas
Acta Horticulturae, 2021
Freshwater-adapted sea bass Dicentrarchus labrax feeding frequency impact in a lettuce Lactuca sativa aquaponics system
Paraskevi Stathopoulou, Panagiotis Berillis, Nikolaos Vlahos, Eleni Nikouli, Konstantinos A. Kormas, Efi Levizou, Nikolaos Katsoulas, Eleni Mente
Peerj, 2021
Estimation of aerodynamic and canopy resistances in a mediterranean greenhouse based on instantaneous leaf temperature measurements
Georgios Nikolaou, Damianos Neocleous, Evangelini Kitta, Nikolaos Katsoulas
Agronomy, 2020
Implementation of the circular economy concept in greenhouse hydroponics for ultimate use of water and nutrients
Angeliki Elvanidi, Cinthya Benitez Reascos, Elissavet Gourzoulidou, Alexander Kunze, Johannes Max, Nikolaos Katsoulas
Horticulturae, 2020
Current use of copper, mineral oils and sulphur for plant protection in organic horticultural crops across 10 European countries
N. Katsoulas, A.-K. Løes, D. Andrivon, G. Cirvilleri, M. de Cara, A. Kir, L. Knebl, K. Malińska, F. W. Oudshoorn, H. Willer, U. Schmutz
Organic Agriculture, 2020
Contribution of hyperspectral imaging to monitor water content in soilless growing cucumber crop
A. Elvanidi, J. Zinkernagel, J.F.J. Max, N. Katsoulas
Acta Horticulturae, 2020
Reuse of cucumber drainage nutrient solution in secondary crops in greenhouses: Initial results
N. Katsoulas, C.M. Demmelbauer-Benitez, A. Elvanidi, E. Gourzoulidou, J.F.J. Max
Acta Horticulturae, 2020
Thermal environment of urban schoolyards: Current and future design with respect to children’s thermal comfort
Dimitrios Antoniadis, Nikolaos Katsoulas, Dimitris Κ. Papanastasiou
Atmosphere, 2020
Design, control, and performance aspects of semi-closed greenhouses
Athanasios Sapounas, Nikolaos Katsoulas, Bart Slager, Robert Bezemer, Charlotte Lelieveld
Agronomy, 2020
Assessment of different inert dust formulations for the control of Sitophilus oryzae, Tribolium confusum and Aphis fabae
Sofia Faliagka, Paraskevi Agrafioti, Evagelia Lampiri, Nikolaos Katsoulas, Christos G. Athanassiou
Crop Protection, 2020
A life cycle assessment of biomass production from energy crops in crop rotation using different tillage system
Anna Vatsanidou, Christos Kavalaris, Spyros Fountas, Nikolaos Katsoulas, Theofanis Gemtos
Sustainability Switzerland, 2020
Life cycle assessment of variable rate fertilizer application in a pear orchard
Anna Vatsanidou, Spyros Fountas, Vasileios Liakos, George Nanos, Nikolaos Katsoulas, Theofanis Gemtos
Sustainability Switzerland, 2020
Evaluation of silica-coated insect proof nets for the control of Aphis fabae, Sitophilus oryzae, and Tribolium confusum
Paraskevi Agrafioti, Sofia Faliagka, Evagelia Lampiri, Merle Orth, Mark Pätzel, Nikolaos Katsoulas, Christos G. Athanassiou
Nanomaterials, 2020
Implementing sustainable irrigation in water-scarce regions under the impact of climate change
Georgios Nikolaou, Damianos Neocleous, Anastasis Christou, Evangelini Kitta, Nikolaos Katsoulas
Agronomy, 2020
Phasing out contentious inputs in organic and non-organic horticulture - Organic-PLUS
U. Schmutz, F. Rayns, N. Katsoulas, A.K. Løes, M. De Marchi, C.G. Sørensen, A. Evans
Acta Horticulturae, 2020
Plant responses to UV blocking greenhouse covering materials: A review
Nikolaos Katsoulas, Anastasia Bari, Chryssoula Papaioannou
Agronomy, 2020
Use of biofuel industry wastes as alternative nutrient sources for DHA-yielding Schizochytrium limacinum production
Sofoklis Bouras, Nikolaos Katsoulas, Dimitrios Antoniadis, Ioannis T. Karapanagiotidis
Applied Sciences Switzerland, 2020
Simulation of radiation and crop activity in a greenhouse covered with semitransparent organic photovoltaics
Catherine Baxevanou, Dimitrios Fidaros, Nikolaos Katsoulas, Evangelos Mekeridis, Chrisostomos Varlamis, Alexandros Zachariadis, Stergios Logothetidis
Applied Sciences Switzerland, 2020
Microclimate and cucumber crop transpiration in a greenhouse cooled by pad and fan system
N. Katsoulas, G. Nikolaou, D. Neocleous, C. Kittas
Acta Horticulturae, 2020
Greenhouse integrated photovoltaics (GIPV): Effects in microclimatic parameters and canopy production
C. Tsichlias, A. Kavga, M. Souliotis, N. Katsoulas
Acta Horticulturae, 2020
Effect of shading on photosynthesis of greenhouse hydroponic cucumber crops
Evangelini Kitta, Nikolaos Katsoulas
Italian Journal of Agrometeorology, 2020
Effect of light intensity and quality on growth rate and composition of Chlorella vulgaris
Maria N. Metsoviti, George Papapolymerou, Ioannis T. Karapanagiotidis, Nikolaos Katsoulas
Plants, 2020
Comparison of growth rate and nutrient content of five microalgae species cultivated in greenhouses
Maria N. Metsoviti, George Papapolymerou, Ioannis T. Karapanagiotidis, Nikolaos Katsoulas
Plants, 2019
Modelling crop transpiration in greenhouses: Different models for different applications
Nikolaos Katsoulas, Cecilia Stanghellini
Agronomy, 2019
Effect of nitrogen concentration, two-stage and prolonged cultivation on growth rate, lipid and protein content of Chlorella vulgaris
Maria N Metsoviti, Nikolaos Katsoulas, Ioannis T Karapanagiotidis, Georgios Papapolymerou
Journal of Chemical Technology and Biotechnology, 2019
The effect of covering material on the yield, quality and chemical composition of greenhouse-grown tomato fruit
Spyridon A Petropoulos, Ângela Fernandes, Nikolaos Katsoulas, Lillian Barros, Isabel CFR Ferreira
Journal of the Science of Food and Agriculture, 2019
Irrigation of greenhouse crops
Georgios Nikolaou, Damianos Neocleous, Nikolaos Katsoulas, Constantinos Kittas
Horticulturae, 2019
Effects of cooling systems on greenhouse microclimate and cucumber growth under mediterranean climatic conditions
Georgios Nikolaou, Damianos Neocleous, Nikolaos Katsoulas, Constantinos Kittas
Agronomy, 2019
Effects of temperature and grafting on yield, nutrient uptake, and water use efficiency of a hydroponic sweet pepper crop
Andreas Ropokis, Georgia Ntatsi, Constantinos Kittas, Nikolaos Katsoulas, Dimitrios Savvas
Agronomy, 2019
Detection of salinity stress in soilless tomato based on crop reflectance
N. Katsoulas, A. Elvanidi, E. Zagari, T. Bartzanas, P. Kalaitzis, C. Kittas
Acta Horticulturae, 2019
Automation for water and nitrogen deficit stress detection in soilless tomato crops based on spectral indices
Angeliki Elvanidi, Nikolaos Katsoulas, Constantinos Kittas
Horticulturae, 2018
Crop reflectance measurements for nitrogen deficiency detection in a soilless tomato crop
A. Elvanidi, N. Katsoulas, D. Augoustaki, I. Loulou, C. Kittas
Biosystems Engineering, 2018
Simulation of schoolyard’s microclimate and human thermal comfort under Mediterranean climate conditions: effects of trees and green structures
D. Antoniadis, N. Katsoulas, C. Kittas
International Journal of Biometeorology, 2018
Impact of cultivar and grafting on nutrient and water uptake by sweet pepper (capsicum annuum l.) grown hydroponically under mediterranean climatic conditions
Andreas Ropokis, Georgia Ntatsi, Constantinos Kittas, Nikolaos Katsoulas, Dimitrios Savvas
Frontiers in Plant Science, 2018
Sensing crop reflectance for water stress detection in greenhouses
N. Katsoulas, A. Elvanidi, T. Bartzanas, K.P. Ferentinos, C. Kittas
Acta Horticulturae, 2018
Dynamic assessment of whitewash shading and evaporative cooling on the greenhouse microclimate and cucumber growth in a mediterranean climate
Nikolaou G., Neocleous D., Katsoulas N., Kittas C.
Italian Journal of Agrometeorology, 2018
Hyperspectral machine vision as a tool for water stress severity assessment in soilless tomato crop
A. Elvanidi, N. Katsoulas, K.P. Ferentinos, T. Bartzanas, C. Kittas
Biosystems Engineering, 2018
Analysis of microclimate and cucumber fruit yield in a screenhouse and an evaporatively cooled greenhouse in a semi-arid location
Yaseen A. Al-Mulla, Mohammed I. Al-Balushi, Hamad A. Al-Busaidi, Adil A. Al-Mahdouri, Constantinos Kittas, Nikolaos Katsoulas
Transactions of the Asabe, 2018
Effects of planting and structural configurations on human thermal comfort in a schoolyard
D. Antoniadis, N. Katsoulas, I.L. Tsirogiannis, C. Kittas
Acta Horticulturae, 2017
Internet of Things in agriculture, recent advances and future challenges
Antonis Tzounis, Nikolaos Katsoulas, Thomas Bartzanas, Constantinos Kittas
Biosystems Engineering, 2017
Modelling transpiration of soilless greenhouse cucumber and its relationship with leaf temperature in a mediterranean climate
Georgios Nikolaou, Damianos Neocleous, Nikolaos Katsoulas, Constantinos Kittas
Emirates Journal of Food and Agriculture, 2017
Effect of irrigation frequency on growth and production of a cucumber crop under soilless culture
Georgios Nikolaou, Damianos Neocleous, Nikolaos Katsoulas, Constantinos Kittas
Emirates Journal of Food and Agriculture, 2017
Effect of screenhouse cover optical properties on sweet pepper fruit quality
N. Katsoulas, O. Kaltsa, N. Rigakis, E. Kitta
Acta Horticulturae, 2017
Crop temperature measurements for crop water status identification in greenhouses
C. Kittas, A. Elvanidi, K.P. Ferentinos, T. Bartzanas, N. Katsoulas
Acta Horticulturae, 2017
Operation reliability of wireless sensor networks in greenhouse conditions
N. Katsoulas, K.P. Ferentinos, A. Tzounis, T. Bartzanas, C. Kittas
Acta Horticulturae, 2017
Nutrient uptake concentrations of a pepper crop under Mediterranean climate conditions
A. Ropokis, D. Savvas, P. Giagtzoglou, S. Ginosatis, G. Ntatsi, C. Kittas, N. Katsoulas
Acta Horticulturae, 2017
Nutrient and water use efficiency in screenhouse crops: A benchmarking approach
E. Kitta, T. Bartzanas, N. Katsoulas
Acta Horticulturae, 2017
Potential energy cost and footprint reduction in Mediterranean greenhouses by means of renewable energy use
Y. Tripanagnostopoulos, N. Katsoulas, C. Kittas
Acta Horticulturae, 2017
Assessment of crop water status by means of crop reflectance
A. Elvanidi, N. Katsoulas, T. Bartzanas, K.P. Ferentinos, C. Kittas
Acta Horticulturae, 2017
Crop water status assessment in controlled environment using crop reflectance and temperature measurements
A. Elvanidi, N. Katsoulas, T. Bartzanas, K. P. Ferentinos, C. Kittas
Precision Agriculture, 2017
Microclimatic effects of planted hydroponic structures in urban environment: measurements and simulations
N. Katsoulas, D. Antoniadis, I. L. Tsirogiannis, E. Labraki, T. Bartzanas, C. Kittas
International Journal of Biometeorology, 2017
Online professional irrigation scheduling system for greenhouse crops
N. Katsoulas, T. Bartzanas, C. Kittas
Acta Horticulturae, 2017
Spatially distributed greenhouse climate control based on wireless sensor network measurements
N. Katsoulas, K.P. Ferentinos, A. Tzounis, T. Bartzanas, C. Kittas
Acta Horticulturae, 2017
Precision modelling of distributed greenhouse climate
Ceur Workshop Proceedings, 2017
Wireless sensor networks for greenhouse climate and plant condition assessment
Konstantinos P. Ferentinos, Nikolaos Katsoulas, Antonis Tzounis, Thomas Bartzanas, Constantinos Kittas
Biosystems Engineering, 2017
Crop reflectance monitoring as a tool for water stress detection in greenhouses: A review
Nikolaos Katsoulas, Angeliki Elvanidi, Konstantinos P. Ferentinos, Murat Kacira, Thomas Bartzanas, Constantinos Kittas
Biosystems Engineering, 2016
Calibration methodology of a hyperspectral imaging system for greenhouse plant water status assessment
N. Katsoulas, A. Elvanidi, K.P. Ferentinos, C. Kittas, T. Bartzanas
Acta Horticulturae, 2016
Reflectance indices for the detection of water stress in greenhouse tomato (Solanum lycopersicum)
C. Kittas, A. Elvanidi, N. Katsoulas, K.P. Ferentinos, T. Bartzanas
Acta Horticulturae, 2016
Evaluation of thermal perception in schoolyards under Mediterranean climate conditions
D. Antoniadis, N. Katsoulas, D. Papanastasiou, V. Christidou, C. Kittas
International Journal of Biometeorology, 2016
A climate control methodology based on wireless sensor networks in greenhouses
K.P. Ferentinos, N. Katsoulas, A. Tzounis, C. Kittas, T. Bartzanas
Acta Horticulturae, 2015
Calibration of a growth model for tomato seedlings (TOMSEED) based on heuristic optimisation
Nikolaos Katsoulas, Konstantinos Peponakis, Konstantinos P. Ferentinos, Constantinos Kittas
Biosystems Engineering, 2015
Application of microclimatic landscape design in schoolyards in Greece
I.L. Tsirogiannis, D. Antoniadis, N. Katsoulas, CH. Lykas, V. Christidou, E. Kitta, C. Kittas
Acta Horticulturae, 2015
Reducing ventilation requirements in semi-closed greenhouses increases water use efficiency
N. Katsoulas, A. Sapounas, F. De Zwart, J.A. Dieleman, C. Stanghellini
Agricultural Water Management, 2015
Extension and evaluation of a model for automatic drainage solution management in tomato crops grown in semi-closed hydroponic systems
Nikolaos Katsoulas, Dimitrios Savvas, Evangelini Kitta, Thomas Bartzanas, Constantinos Kittas
Computers and Electronics in Agriculture, 2015
A simple model for ventilation rate determination in screenhouses
N. Rigakis, N. Katsoulas, M. Teitel, T. Bartzanas, C. Kittas
Energy and Buildings, 2015
Remote sensing for crop water stress detection in greenhouses
T. Bartzanas, N. Katsoulas, A. Elvanidi, K.P. Ferentinos, C. Kittas
Precision Agriculture 2015 Papers Presented at the 10th European Conference on Precision Agriculture Ecpa 2015, 2015
Measurements and simulation of microclimatic effects of a horizontal hydroponic pergola
Ceur Workshop Proceedings, 2015
Energy needs and energy saving in Mediterranean greenhouses
C. Kittas, N. Katsoulas, T. Bartzanas
Acta Horticulturae, 2014
Recent trends in salinity control for soilless growing systems management
N. Katsoulas, W. Voogt
Acta Horticulturae, 2014
Predicting reference evapotranspiration for screenhouse-grown crops
Evangelini Kitta, Alain Baille, Nikolaos Katsoulas, Nikolaos Rigakis
Agricultural Water Management, 2014
Transpiration and canopy conductance of a pepper crop under screens with different porosity and shading intensity
N. Katsoulas, N. Rigakis, E. Kitta, A. Baille
Acta Horticulturae, 2014
Development and evaluation of a DSS for drainage management in semi-closed hydroponic systems
N. Katsoulas, C. Kittas, T. Bartzanas, D. Savvas
Acta Horticulturae, 2014
Use of a decision support system for management of the drainage solution in semi-closed hydroponic systems under different drainage fractions
N. Katsoulas, C. Kittas, T. Bartzanas, D. Savvas
Acta Horticulturae, 2014
Photosynthetic acclimation of sweet pepper plants to screenhouse conditions
Evagelini Kitta, Nikolaos Katsoulas, Anna Kandila, Maria M. González-Real, Alain Baille
Hortscience, 2014
Pepper crop production under shading and insect proof screenhouses
N. Rigakis, N. Katsoulas, P. Belitsiotis, C. Kittas, T. Bartzanas
Acta Horticulturae, 2014
Effects of cover optical properties on screenhouse radiative environment and sweet pepper productivity
Evangelini Kitta, Alain D. Baille, Nikolaos Katsoulas, Nikolaos Rigakis, Maria M. González-Real
Biosystems Engineering, 2014
Exposure of greenhouse workers to pesticides
C. Kittas, N. Katsoulas, T. Bartzanas, M. Kacira, T. Boulard
Acta Horticulturae, 2014
CFD modeling of microclimate in the leaf boundary layer, ecological niche of pests
H. Fatnassi, T. Boulard, C. Poncet, T. Bartzanas, N. Katsoulas, M. Kacira
Acta Horticulturae, 2014
Relationships between reflectance and water status in a greenhouse rocket (Eruca sativa Mill.) cultivation
European Journal of Horticultural Science, 2013
Computational fluid dynamics applications to improve crop production systems
T. Bartzanas, M. Kacira, H. Zhu, S. Karmakar, E. Tamimi, N. Katsoulas, In Bok Lee, C. Kittas
Computers and Electronics in Agriculture, 2013
Effects of a UV-absorbing greenhouse covering film on tomato yield and quality
Ch. Papaioannou, N. Katsoulas, P. Maletsika, A. Siomos, C. Kittas
Spanish Journal of Agricultural Research, 2012
Minimizing environmental impact from applying selected inputs in plant production
Environmental Management Systems Sustainability and Current Issues, 2012
Transpiration of a sweet pepper crop under screenhouse conditions
N. Katsoulas, N. Rigakis, E. Kitta, A. Baille
Acta Horticulturae, 2012
Performance test of a Na+ accumulation model as part of a decision support system for closed hydroponic systems management
N. Katsoulas, G. Kakavikakis, C. Kittas, T. Bartzanas, D. Savvas
Acta Horticulturae, 2012
Solar radiation distribution in screenhouses: A CFD approach
T. Bartzanas, N. Katsoulas, C. Kittas
Acta Horticulturae, 2012
Test of a greenhouse covered by polyethylene film that reflects near-infrared radiation
C. Kittas, N. Katsoulas, M. Katsoupa, CH. Papaioannou
Acta Horticulturae, 2012
Transpiration and photosynthesis of sweet pepper growing under differing screenhouse nets
N. Katsoulas, A. Kandila, E. Kitta, A. Baille
Acta Horticulturae, 2012
Microclimate of a pepper crop under screenhouse conditions
N. Rigakis, N. Katsoulas, C. Kittas, E. Kitta, T. Bartzanas
Acta Horticulturae, 2012
Greenhouse sector assessment in Azerbaijan and prospects for sustainable development
N. Katsoulas, E. Hadzilias
Acta Horticulturae, 2012
Use of shading nets to improve quality characteristics of compact gardenia (Gardenia jasminoides ellis) potted plant
CH. Lykas, N. Katsoulas
Acta Horticulturae, 2012
Effects of anti-drip polyethylene covering films on microclimate and crop production
N. Katsoulas, T. Bartzanas, E. Kitta
Acta Horticulturae, 2012
Influence of two new greenhouse covering materials on greenhouse microclimate and cooling load
E. Kitta, T. Bartzanas, N. Katsoulas
Acta Horticulturae, 2012
Case studies of a modified biological simulator (TOMGRO) according to short cropping period
G. Dimokas, N. Katsoulas, C. Kittas, M. Tchamitchian
Acta Horticulturae, 2012
Data based modeling approach for greenhouse air temperature and relative humidity
E. Ntoula, N. Katsoulas, C. Kittas, A. Youssef, V. Exadaktylos, D. Berckmans
Acta Horticulturae, 2012
Shading effects on greenhouse microclimate and crop transpiration in a cucumber crop grown under mediterranean conditions
Applied Engineering in Agriculture, 2012
Microclimate Distribution in a Greenhouse Cooled by a Fog System
N. Katsoulas, C. Kittas, T. Bartzanas
Acta Horticulturae, 2012
Differences in required structural efficiency of standard commercial steel greenhouses among EU countries: A hellenic experience
E. Dova, N. Katsoulas, C. Kittas, D. Sophianopoulos
Acta Horticulturae, 2012
Evaluation of crop reflectance indices for greenhouse irrigation scheduling
I. Tsirogiannis, D. Savvas, N. Katsoulas, C. Kittas
Acta Horticulturae, 2012
Effect of two new cover materials on greenhouse energy consumption and cooling load
T. Bartzanas, E. Kitta, N. Katsoulas, A. Tsouknidas
Acta Horticulturae, 2012
Effect of shading on greenhouse energy balance and crop transpiration
E. Kitta, T. Bartzanas, D. Savvas, N. Katsoulas
Acta Horticulturae, 2012
Improvement of greenhouse microclimate distribution by means of air mixing fans
C. Kittas, N. Katsoulas, K. Papa, A. Thanasenaris, T. Bartzanas
Acta Horticulturae, 2012
Experimental and modelling analysis of pesticide fate from greenhouses: The case of pyrimethanil on a tomato crop
Nikolaos Katsoulas, Thierry Boulard, Nikolaos Tsiropoulos, Thomas Bartzanas, Constantinos Kittas
Biosystems Engineering, 2012
Effects on microclimate, crop production and quality of a tomato crop grown under shade nets
C. Kittas, N. Katsoulas, V. Rigakis, T. Bartzanas, E. Kitta
Journal of Horticultural Science and Biotechnology, 2012
Characterization and analysis of the effects of greenhouse climate control equipment on greenhouse microclimate and crop response
C. Kittas, N. Katsoulas, T. Bartzanas
Acta Horticulturae, 2011
Development of a bio-physical simulator for Mediterranean greenhouses
G. Dimokas, N. Katsoulas, C. Kittas, M. Tchamitchian
Acta Horticulturae, 2011
Experimental results and spatial simulation of climate in a greenhouse with insect screens
T. Bartzanas, D. Fidaros, N. Katsoulas, C. Kittas, T. Boulard
Acta Horticulturae, 2011
Study of a passive solar heating greenhouse crop grow gutter
N. Katsoulas, C. Kittas, C. Fidaros, T. Bartzanas, K. Baxevanou
Acta Horticulturae, 2011
Data-Based approach to model the dynamic behaviour of greenhouse temperature
A. Youssef, J. Dekock, S.E. Ozcan, D. Berckmans, N. Katsoulas, C. Kittas
Acta Horticulturae, 2011
Effect of grafting on eggplant leaf gas exchanges under mediterranean greenhouse conditions
International Journal of Plant Production, 2011
Effect of irrigation scheduling on gerbera flower yield and quality
Ioannis Tsirogiannis, Nikolaos Katsoulas, Constantinos Kittas
Hortscience, 2010
Response of an eggplant crop grown under Mediterranean summer conditions to greenhouse fog cooling
N. Katsoulas, D. Savvas, I. Tsirogiannis, O. Merkouris, C. Kittas
Scientia Horticulturae, 2009
Influence of shading screens on microclimate, growth and productivity of tomato
Acta Horticulturae, 2009
Improving the efficiency of insect screens in greenhouses
T. Bartzanas, D. Fidaros, C. Baxevanou, N. Katsoulas, C. Kittas
Acta Horticulturae, 2009
Development of a simple growth model for light control in tomato seedling production
C. Peponakis, N. Katsoulas, D. Petsani, C. Kittas, M. Tchamitchian
Acta Horticulturae, 2009
The impact of insect screens and ventilation openings on the greenhouse microclimate
Transactions of the Asabe, 2008
Gardenia jasminoides height control using a photoselective polyethylene film
Christos Lykas, Constantinos Kittas, Nikolaos Katsoulas, Maria Papafotiou
Hortscience, 2008
Effects of anti-drip cover materials on microclimate and production of a hydroponic cucumber crop
N. Katsoulas, CH. Manolaraki, C. Kittas, T. Bartzanas
Acta Horticulturae, 2008
Numerical modelling and experimental measurements of pesticides dispersion in a naturally ventilated greenhouse
C. Kittas, N. Katsoulas, N. Tsiropoulos, T. Bartzanas, A.A. Sapounas
Acta Horticulturae, 2008
Greenhouse microclimate and soilless pepper crop production and quality as affected by a fog evaporative cooling system
Transactions of the Asabe, 2007
Interactions between salinity and irrigation frequency in greenhouse pepper grown in closed-cycle hydroponic systems
D. Savvas, E. Stamati, I.L. Tsirogiannis, N. Mantzos, P.E. Barouchas, N. Katsoulas, C. Kittas
Agricultural Water Management, 2007
Leaf boundary layer conductance in ventilated greenhouses: An experimental approach
N. Katsoulas, A. Baille, C. Kittas
Agricultural and Forest Meteorology, 2007
Effect of two UV-absorbing greenhouse-covering films on growth and yield of an eggplant soilless crop
C. Kittas, M. Tchamitchian, N. Katsoulas, P. Karaiskou, Ch. Papaioannou
Scientia Horticulturae, 2006
Electrical conductivity and pH prediction in a recirculated nutrient solution of a greenhouse soilless rose crop
Christos Lykas, Nikolaos Katsoulas, Panagiotis Giaglaras, Constantinos Kittas
Journal of Plant Nutrition, 2006
Effect of Vent Openings and Insect Screens on Greenhouse Ventilation
N. Katsoulas, T. Bartzanas, T. Boulard, M. Mermier, C. Kittas
Biosystems Engineering, 2006
Effect of irrigation frequency on rose flower production and quality
N. Katsoulas, C. Kittas, G. Dimokas, Ch. Lykas
Biosystems Engineering, 2006
Calcium, magnesium and potassium concentrations prediction in a recirculated nutrient solution of a greenhouse soilless rose crop
CH. Lykas, N. Katsoulas, C. Kittas
Acta Horticulturae, 2006
Measurements and modelling of tracer gas distribution in a naturally ventilated greenhouse for pesticide dispersion determination
C. Kittas, T. Bartzanas, N. Katsoulas, A.A. Sapounas
Acta Horticulturae, 2006
Dispersion of pesticides from a naturally ventilated greenhouse: A CFD approach
T. Bartzanas, N. Katsoulas, C. Kittas, A.A. Sapounas
Acta Horticulturae, 2006
Effect of vent opening and insect screens on greenhouse microclimate distribution
C. Kittas, N. Katsoulas, T. Bartzanas, T. Boulard, M. Mermier
Acta Horticulturae, 2006
Greenhouse cooling by a fog system: Effects on microclimate and on production and quality of a soilless pepper crop
N. Katsoulas, E. Kitta, C. Kittas, I.L. Tsirogiannis, E. Stamati, D. Sayvas
Acta Horticulturae, 2006
Air temperature regime in a forced ventilated greenhouse with rose crop
C. Kittas, M. Karamanis, N. Katsoulas
Energy and Buildings, 2005
Use of model-artificial leaves for monitoring aerodynamic conductance in greenhouses
C. Kittas, N. Katsoulas, A. Baille
Acta Horticulturae, 2005
Crop-climate coupling in greenhouses. characterization and analysis
A. Baille, C. Kittas, N. Katsoulas
Acta Horticulturae, 2005
Effect of two irrigation frequencies on rose flower production and quality
C. Kittas, G. Dimokas, CH. Lykas, N. Katsoulas
Acta Horticulturae, 2005
The effect of vent configuration and insect screens on greenhouse microclimate
T. Bartzanas, N. Katsoulas, C. Kittas, T. Boulard, M. Mermier
International Journal of Ventilation, 2005
Influence of an aluminized thermal screen on greenhouse microclimate and canopy energy balance
Transactions of the American Society of Agricultural Engineers, 2003
Influence of aluminized thermal screens on greenhouse microclimate and night transpiration
C. Kittas, N. Katsoulas, A. Baille
Acta Horticulturae, 2003
Influence of leaf area index on canopy energy partitioning and greenhouse cooling requirements
N. Katsoulas, A. Baille, C. Kittas
Biosystems Engineering, 2002
Influence of an insect screen on greenhouse ventilation
Transactions of the American Society of Agricultural Engineers, 2002
Influence of whitening on greenhouse microclimate and crop energy partitioning
A Baille, C Kittas, N Katsoulas
Agricultural and Forest Meteorology, 2001
Effect of misting on transpiration and conductances of a greenhouse rose canopy
N Katsoulas, A Baille, C Kittas
Agricultural and Forest Meteorology, 2001
Transpiration and energy balance of a greenhouse rose crop in mediterranean summer conditions
C. Kittas, N. Katsoulas, A. Baille
Acta Horticulturae, 2001
Influence of greenhouse ventilation regime on the microclimate and energy partitioning of a Rose Canopy during summer conditions
C. Kittas, N. Katsoulas, A. Baille
Journal of Agricultural and Engineering Research, 2001
Estimating transpiration rate and canopy resistance of a rose crop in a fan-ventilated greenhouse
N. Katsoulas, C. Kittas, A. Baille
Acta Horticulturae, 2001
Influence of misting on the diurnal hysteresis of canopy transpiration rate and conductance in a rose greenhouse
C. Kittas, N. Katsoulas, A. Baille
Acta Horticulturae, 2000
Transpiration and canopy resistance of greenhouse soilless roses: Measurements and modeling
C. Kittas, N. Katsoulas, A. Baille
Acta Horticulturae, 1999

Nikolaos Katsoulas

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