I am researcher in National Research and Innovation Agency since 1989. My research experience are farming system research, recommendation of an organic and organic fertilizer, soil conditioner, biochar, GHG, biopesticide and industry disposes
EDUCATION
Ph.D. from IPB University
RESEARCH, TEACHING, or OTHER INTERESTS
Soil Science, Environmental Science, Agronomy and Crop Science, Agricultural and Biological Sciences
22
Scopus Publications
Scopus Publications
Reducing methane emission from rainfed rice fields through utilizing amphibian rice cultivars Anicetus Wihardjaka, Eni Yulianingsih, Mas Teddy Sutriadi, Terry Ayu Adriany, Elisabeth Srihayu Harsanti, Yulis Hindarwati, Sodiq Jauhari Chilean Journal of Agricultural Research, 2025 Rainfed rice (Oryza sativa L.) fields are the largest rice contributor after irrigated rice fields in Indonesia.As land is vulnerable to climate change impacts, optimizing the productivity of rainfed lowland rice is carried out, among other things, by utilizing superior amphibian rice cultivars.On the other hand, rainfed rice fields whose irrigation depends on rainfall are seen as a source of greenhouse gas emissions, especially methane.The research objective was to determine methane emissions from rainfed rice fields by using amphibian rice cultivars.The field research was conducted in a randomized block design with seven amphibian rice cultivars and the lowland 'Ciherang' as control.The changes measured included plant growth, grain yield, methane flux, and greenhouse gas intensity (GHGI).The tested amphibian rice cultivars emitted methane lower by 2.2%-35.3%than 'Ciherang'.'Inpari 34', 'Inpari 39', and 'Inpari 42' gave significantly lower GHGI values than other cultivars tested in rainfed rice fields, namely lower by 23.2%-31.5%,8.1%-18.0%,14.1%-23.4%,respectively.'Inpari 34' is an amphibian cultivar that emits the lowest methane and releases the lowest CO2 per ton of grain produced.The cultivars of 'Inpari 34', 'Inpari 39', and 'Inpari 42' are considered suitable and adaptive for rainfed rice fields.
Greenhouse gas emissions reduction utilizing methane-oxidizing bacteria in critical growth stages of paddy Terry Ayu Adriany, Nourma Al Viandari, Etty Pratiwi, Alina Akhdiya, Syaiful Anwar, Ali Pramono, Elisabeth Srihayu Harsanti, Asep Nugraha Ardiwinata, Mas Teddy Sutriadi, Anicetus Wihardjaka Chilean Journal of Agricultural Research, 2025 Paddy cultivation contributes to greenhouse gas (GHG) emissions in the agricultural sector.The consistency of the biological option to reduce GHG emissions is utilizing methane-oxidizing bacteria in paddy cultivation.This study aimed to obtain methane (CH4) and nitrous oxide (N2O) reduction by applying methane-oxidizing bacteria in soil incubation and the critical growth stages of paddy in paddy fields.The research was conducted at the greenhouse gas laboratory for soil incubation with four isolates (Amorphomonas oryzae (SI5), Ciceribacter sp.(OF4), Rhodanobacter rhizosphaerae (TH6), Bordetella petrii (BD4)), and combination bacterial consortium at the paddy field scale.The treatment consisted of applying bacterial consortium and organic matter at the field scale.The first factor: R0 = without bacterial application; R1 = SI5, OF4, BD4; R2 = SI5, TH6, OF4; R3 = SI5, BD4, Priestia aryabhattai.The second factor was organic matter addition; O0 = without manure and O1 = 2 t ha -1 farmyard manure.Applying four isolates had a positive effect in reducing N2O and CH4 concentrations in soil incubation.The SI5 reduced CH4 concentration by 22%, and BD4 showed a 22% N2O reduction during soil incubation.The bacterial consortium R3 was the best treatment to reduce total CH4 and N2O emissions at three critical growth stages of paddy and produced the highest total population of methanotrophs and denitrifying bacteria.Bacterial consortia are suggested as a potential strategy for promoting sustainable agriculture and environment.
Nitrogen dynamic and precise management to predict corn yield in tropical upland acid soils A. Kasno, A.A. Rivaie, C. Tafakresnanto, E. Pratiwi, E. Karmawati, et al. Global Journal of Environmental Science and Management, 2024 BACKGROUND AND OBJECTIVES: To meet the needs of the global population (9.7 billion people) until 2050, a 45 percent increase in corn production is required. Efforts to enhance corn production may be informed, among others, precise N management. This research aims to determine nitrogen dynamics and precise nitrogen nutrient management in corn cultivation using a leaf chlorophyll meter and nitrogen response tests to predict corn yield in tropical upland acid soils.METHODS: This research was conducted in an Ultisol and verified in an Oxisol. The trial was arranged in a randomized completely block design with eight treatments: 0, 45, 90, 135, 180, 225, 270, and 315 kilograms nitrogen per hectare, repeated three times. The chlorophyll content of corn leaves was measured at 45 and 60 days after planting, using a chlorophyll meter. Data analysis was carried out on vegetative growth and yield, as well as nitrogen content in the soil, leaf, and grains.FINDINGS: The study found that the application of nitrogen fertilizer at the rate of 180 kilograms per hectare can alter nitrate concentrations in soil and significantly increases nitrogen uptake, growth, and corn yield. The maximum nitrogen fertilizer rate was 274.5 kilograms nitrogen per hectare, with corresponding chlorophyll meter readings of 52.8 and a corn yield of 8.58 tons per hectare. The corn yield at the rate of maximum nitrogen fertiliser (8.58 tons per hectare) was not significantly different from that at the rate of 180 kilogrammes nitrogen per hectare (8.54 tons per hectare). There was a strong correlation between corn yields and chlorophyll meter values with correlation coefficient of 0.92.CONCLUSION: The study revealed that applying nitrogen fertilizer at the medium rate of 180 kilograms per hectare can lead to an increase in nitrogen uptake, growth, and corn yield on tropical upland acid soils. There was not a significant difference in corn yield between the rate of nitrogen fertilization at 180 kilograms per hectare and the maximum rate of 274.5 kilograms nitrogen per hectare. In terms of sustainable agriculture management, the medium rate of 180 kilograms nitrogen is recommended for maximizing crop yield on the upland acid soils and minimizing potential environmental impacts associated with excessive use of fertilizers. There is a strong correlation between leaf chlorophyll meter readings and corn yield, suggesting the chlorophyll meter can serve as a reliable tool in the study site in determining optimal fertilizer rates.
Chlorpyriphos and Isoprocarb Residues in The Soil and Food Crop at Agricultural Area of Citarum Watershed Asep Kurnia, Asep Nugraha Ardiwinata, Elisabeth Srihayu Harsanti, Mas Teddy Sutriadi, Asep Mulyono, Ria Fauriah Makmur, Reginawanti Hindersah Aip Conference Proceedings, 2024 The residue of chlorpyriphos and isoprocarb pesticides is a prominent issue related to food safety due to their hazard to human health and environmental quality. A study to observe the level of pesticides in soil and food crops in an agricultural area was conducted in the Citarum watershed. The soil and edible parts of food crop samples were collected from 40 and 34 locations, respectively. The results showed that chlorpyriphos residue in soil was detected at five locations, which were 12.5% of all observation areas. The minimum, maximum and average concentrations of chlopyriphos were 0.0018 mg/kg, 0.0046 mg/kg, and 0.0030 mg/kg, respectively; below the maximal chlorpyriphos residue threshold in soil (0.1250 mg/kg). Chlorpyriphos residue was detected in the edible part of food crops grown in the 12 locations (35.3% of all studied locations) with the minimum, maximum and average concentrations of 0.0049 mg/kg, 0.9147 mg/kg, and 0.2963 mg/kg, respectively. The concentration of chlorpyriphos residue that was higher than the maximum residue limit (0.01 mg/kg) was detected in snaps, potato, shallot, and paddy samples collected from 10 locations. Isoprocarb residue was not detected in soil but was noticed in food crops grown in two locations with concentrations were 0.0117 and 0.0335 mg/kg. The concentration of isoprocarb residue that was higher than the maximum residue limit (0.03 mg/kg) was detected in paddy samples collected from one location. According to the data, it should any effort to minimize chlorpyriphos and isoprocarb residue in food crops through good application practices of pesticides.
Agroforestry as an approach to rehabilitating degraded tropical peatland in Indonesia Adi Jaya, Salampak Dohong, Susan E. Page, Mofit Saptono, Lilies Supriati, Shella Winerungan, Mas Teddy Sutriadi, Lusia Widiastuti Journal of Degraded and Mining Lands Management, 2024 Peatland is a unique ecosystem with water saturation; peatland regulates hydrological processes, climate, environmental conditions, and biodiversity. Poor management practises regarding peatlands can lead to land degradation, and peatland degradation typically has negative effects. Recent tropical peatland research in Indonesia has predominantly revolved around the examination of the ecological consequences resulting from various management approaches. There is little study on farmers' agroforestry efforts to preserve and restore degraded peatlands. A comprehensive examination was undertaken to assess a range of facts, information, and scholarly articles pertaining to the practise of agroforestry on peatlands in Indonesia. The primary incentive for farmers to adopt agroforestry systems originates from their recognition of the impending scarcity of trees. By integrating intercrops with cultivated trees, farmers anticipate generating adequate money to fulfil their family's economic requirements. Farmers who choose intensive intercropping practises are motivated by market demand, whereas farmers who do not adopt this approach tend to favour crops that necessitate less rigorous management. The provision of governmental assistance holds significant importance, and there is a pressing need for additional guidance and support. The potential for rehabilitating degraded peatlands by the implementation of agroforestry practises of native tree species is considerable. Their growth patterns contribute to enhanced vegetative coverage, resulting in heightened moisture levels, reduced temperatures, diminished fire hazards, and improved peat soil quality. The relationship between the physiography of the land and the depth of the peat is directly associated with the patterns and components of agroforestry in peatland environments.
Nitrogen losses (N2O and NO3–) from mustard (Brassica juncea L.) cropping applied urea coated bio-charcoal Elisabeth Srihayu Harsanti, Asep Nugraha Ardiwinata, Sukarjo Sukarjo, Hidayatuz Zu'amah, Asep Kurnia, Mas Teddy Sutriadi, Dedi Nursyamsi, Wahida Annisa Yusuf, Anicetus Wihardjaka Plant Soil and Environment, 2024 Most farmers use urea as a nitrogen fertiliser to raise mustard (Brassica juncea L.), although its nitrogen (N) content is quickly lost due to its hygroscopic nature. Nitrogen loss in the form of nitrous oxide (N2O) and nitrates (NO3–) has been causing low nitrogen fertiliser efficiency in vegetable cultivation. This investigation aims to assess the impact of urea fertiliser coated with biochar or activated charcoal on losses of N2O and NO3– concentration in the soil during mustard production. The experiment used a randomised block design with five treatments of urea fertiliser coated with biochar/activated charcoal. The observed data included N2O flux, nitrate, and ammonia content in soil and water. The results showed that urea fertiliser coated with activated charcoal from corn cobs tended to suppress N loss more effectively than urea coated with biochar or activated charcoal from coconut shells. Biochar and activated charcoal from coconut shells suppressed N-N2O loss as much as 3.1% and 52.5% (7 days after planting (DAP)), respectively, and 68.7% and 71.6% (21 DAP), respectively. Biochar and activated charcoal from corn cob reduce N-N2O loss by 46.5% and 66.5% (7 DAP), respectively, and by 70.7% and 77.8% (21 DAP). Urea-coated activated charcoal fertiliser increases mustard plant biomass and nitrogen uptake. Biochar and activated charcoal from coconut shells and corncobs increase nitrogen use efficiency by 5, 24, 6, and 17%, respectively. Biochar/activated charcoal coatings are a promising technology for boosting nitrogen use efficiency in vegetable crops, including mustard crops.
Higher rice yield and lower greenhouse gas emissions with cattle manure amendment is achieved by alternate wetting and drying Ali Pramono, Terry Ayu Adriany, Nourma Al Viandari, Helena Lina Susilawati, Anicetus Wihardjaka, Mas Teddy Sutriadi, Wahida Annisa Yusuf, Miranti Ariani, Rota Wagai, Takeshi Tokida, Kazunori Minamikawa Soil Science and Plant Nutrition, 2024 Climate change and water scarcity threaten the sustainability of rice production systems. Alternate wetting and drying (AWD) is a promising option to reduce methane (CH4) emission from irrigated paddy fields. However, its effect on rice yield remains to be clarified. Organic amendment can increase rice yield but may also increase CH4 emission. We therefore hypothesized that the combination of AWD with organic amendment could both increase rice yield and decrease CH4 emission. We carried out field experiments in six consecutive rice seasons during 2019 − 2022 in Central Java, Indonesia. We examined the effect of water management (continuous flooding [CF] and AWD) with (+M) and without (−M) the amendment of cattle manure as a locally available organic matter on rice growth and yield and the emissions of CH4 and nitrous oxide (N2O). AWD significantly (p < 0.05) decreased CH4 emission by 29% but marginally (p < 0.1) increased N2O emission by 10% relative to CF. There was no significant effect of AWD alone on rice yield. AWD significantly increased water productivity (the ratio of rice yield to irrigated water volume) by 50%. Cattle manure amendment significantly increased CH4 emission by 12% and rice yield by 5% but did not affect N2O emission. The combination effect of AWD+M relative to CF−M (control) was additive and resulted in a 7% increase in rice yield, a 19% decrease in the global warming potential (GWP) of CH4 + N2O emissions during both growing and fallow periods, and a 24% decrease in yield-scaled GWP. Our results indicated that the combination of AWD with cattle manure amendment would be a promising means to increase rice yield while reducing total soil greenhouse gas emission from irrigated rice paddies.
The dynamics of the nutrients in degraded Vertic Endoaquepts of rainfed rice fields with soil ameliorant and soil tillage management Nourma Al Viandari, Anicetus Wihardjaka, Heru Bagus Pulunggono, Suwardi Suwardi, Mas Teddy Sutriadi Journal of Degraded and Mining Lands Management, 2023 Intensive land use in the long term can cause land degradation, affecting soil fertility, especially on Vertic Endoaquepts in Pati that have been managed as rainfed rice fields. The characteristics of rainfed rice fields are low nutrient availability and rice yields. This study aimed to determine the effect of tillage depth management and soil ameliorants on nutrient availability, plant uptake, and rice yield in rainfed rice fields. The field experiment that was conducted at farmer’s field used a split-plot design. The main plot was the treatment of tillage depth treatments (OT), with depths of 10 cm (T1) and 20 cm (T2). The subplots were ameliorant treatments (A), consisting of A1 = sugarcane leaf compost, A2 = rice straw compost, A3 = chicken manure, and A4 = cow manure, with each dose of 5 t ha<sup>-1</sup>. The Inpari 32 rice variety was grown for 95 days. Available N, P and K of the soil were measured at 0, 62, and 94 days after transplanting (DAT). Plant N, P, and K contents, plant height, number of tillers, and rice yield were measured at 62 DAT. The results showed that the interaction of soil depth and ameliorant significantly affected soil available P and K but had no significant effect on soil available N. Ameliorant treatment of cow manure significantly increased rice yield.
Improving Upland Acid Soil Properties and Increasing Maize Yield by Phosphate Rock Application with Organic Acids Mas Teddy Sutriadi, Syaiful Anwar, Budi Mulyanto, Darmawan, Husnain, Adi Jaya International Journal of Agronomy, 2022 Problems encountered in the management of upland acid soils, besides soil pH, are also low in phosphorus (P) content and less available to plants. The addition of organic acids (OAs) to the direct application of phosphate rock (PR) has not been widely studied yet and is expected to improve upland acid soil properties. The research aims to determine the effect of adding OAs on the direct application of PR to improve upland acid soil and increase maize yield. It was a greenhouse experiment using a randomized complete design in a factorial arrangement with three replications. The treatments consisted of four types of OA (citric, humic, succinic, and oxalic acid) and five OA concentration levels (0, 25, 50, 100, and 200 ppm). The hybrid maize (Zea mays L) was used as the test crop. The parameters observed were soil properties (pH, exchangeable H (H+), exchangeable Al (Al3+), exchangeable Ca (Ca2+), cation exchange capacity (CEC), available P (as P-Bray1)) and maize growth (plant heights and yield). The results show that the types of OA treatments had no significant effect on soil properties and maize yield; in contrast, the concentrations of OA levels were able to improve soil properties as indicated by a significant effect on pH, H+, Al3+, Ca2+, CEC, available P, and increased maize yield. An increase in soil pH due to the addition of OAs to the direct application of PR could increase Ca2+ and CEC and decrease Al3+ and H+, while increasing available P for plants. Although not significantly different, oxalic acid was able to improve the observed soil properties and maize yield, followed by citric, humic, and succinic acids. The maximum OA concentration was 126.9 ppm. We can say that the main finding of this research is that oxalic, citric, humic, and succinic acids at a concentration of 126 ppm can be applied to phosphate rock. In Indonesia, humic acid has been widely applied by farmers because it is easy to obtain. Therefore, it can be applied to phosphate rock.
1. Effect of peat water levels on greenhouse gas production in different cropping land use. DOI: 10.4067/S0718-58392024000300414 (2024)
2. Nitrogen Losses (N2O and NO3) from Mustard (Brassica juncea L.) Cropping Applied Urea Coated Bio-Charcoal. .
3. Agroforestry as an approach to rehabilitating degraded tropical peatland in Indonesia. doi:10.15243/ (2024)
4. Higher rice yield and lower greenhouse gas emissions with cattle manure amendment is achieved by alternate wetting and drying. . (2024).
5. The dynamics of the nutrients in degraded Vertic Endoaquepts of rainfed rice fields with soil ameliorant and soil tillage management. doi:10.15243/ (2023)
6. Improving Upland Acid Soil Properties And Increasing Maize Yield By Phosphate Rock Application With Organic Acids. (2024)
RESEARCH OUTPUTS (PATENTS, SOFTWARE, PUBLICATIONS, PRODUCTS)
1. Perangkat Uji Residu Pestisida (Pesticide Residue Test Kit)
2. AgrEPIS Versi 0.1 (Agriculture Environment Pollution Information System)
Industry, Institute, or Organisation Collaboration
1. Tri Putera Jaya Sentosa.
2. Gorontalo Listrik Persada
3. PT. Sinar Mas Grup
4. APAARI
5. NARO
