Maksat

Scopus Publications

Impact of foliar organic-mineral fertilizers on sugar beet biomass and yield in response to phosphorus and potassium levels
Research on Crops, 2024
Mapping of Cornfield Soil Salinity in Arid and Semi-Arid Regions
Zhassulan Smanov, Shakhislam Laiskhanov, Maksat Poshanov, Yerzhan Abikbayev, Saken Duisekov, Yerdaulet Tulegenov
Journal of Ecological Engineering, 2023
Soil salinization and their annual increase in volume is not only one of the main problems of arid and subarid regions, but it is becoming global. Studying the problem of salinization and its spatial distribution using operational remote sensing methods is very important for Kazakhstan, where almost half of the agricultural land is exposed to salinization, but it is at the initial stage of development in the use of space technologies of research. The main goal of this study is to conduct a field study of soil salinity in corn fields, one of the most common crops in the arid region of the country, located in the Shaulder irrigated massif, using space-based methods, and to create algorithms for compiling a salinity map based on remote sensing data. For this purpose, firstly, using Sentinel-2 images, the method of separating corn from other dominant crops in the region by creating NDVI dynamics covering all phases of growth of agricultural crops was shown. Then, a regression analysis was performed on soil and vegetation indices calculated using satellite images and data on soil salinity obtained through field studies. As a result of the analysis, the main predictor of deciphering salinized soils was determined. By dividing the predictive image into quartiles, contours of salinized soils were determined and a soil salinity map was created. With the help of the soil salinity map, it was found that, non-saline soils -2912.2 ha; slightly saline soils -3288.4 ha, moderately saline soils -2615.2 ha, and strongly saline soils -1284.3 ha in the study area.
RESEARCH AND WAYS OF SOLVING THE PROBLEM OF WATERLOGGING OF ARABLE LAND IN NORTHERN KAZAKHSTAN
Beibut Suleimenov
International Journal of Geomate, 2023
The article presents the results of scientific research and gives ways to solve the problem of waterlogging of arable land in Northern Kazakhstan.This work aims to find out the degree of waterlogging, drainage of wetlands of the study area, and their use in agricultural production.To work out the issues of conducting drainage reclamation of wetlands, the experimental site was identified in the North Kazakhstan region, where amelioration work to drain it was carried out.The description of waterlogged soils of ground and surface moisture based on the results of studying their properties is given; comparative data on their morphological features, physicochemical properties, organic matter concentration, silt fraction, and physical clay for the studied soil layers are presented.The main problems of rational use of agricultural lands are analyzed, and ways of solving the identified problems of waterlogging of arable lands in northern Kazakhstan are proposed.The volumetric weight in the 0-100 cm layer ranges from 1.34-1.49t/m 3 , and the humus concentration is 0.15-5.53%.Of the absorbed bases, calcium accounts for 80-90 %.By qualitative composition from the relict lakes of the Kamyshlov ravine -Big Salt Lake -salinity was 5.254 g/l.According to the assessment of alkalinity (according to the values of hydrogen index (pH), the surface waters of reservoirs -1 and 2 -are neutral, and those from Big Salt Lake are slightly alkaline.This present work can serve as a guide for improving soil conservation, sustainability, and planning for future agricultural production.
Spatial and In-Depth Distribution of Soil Salinity and Heavy Metals (Pb, Zn, Cd, Ni, Cu) in Arable Irrigated Soils in Southern Kazakhstan
Małgorzata Suska-Malawska, Assem Vyrakhamanova, Marya Ibraeva, Maksat Poshanov, Marcin Sulwiński, Kristina Toderich, Monika Mętrak
Agronomy, 2022
Most irrigated lands in the Republic of Kazakhstan are in its southern part, in the large deltas and ancient alluvial plains in the basins of the rivers Syr Darya and Ili. The combination of climatic features and anthropogenic pressures leads to increased salinity and contamination of cultivated soils in this region, resulting in a qualitative and quantitative decline in crop production. The study’s primary goal was to assess soil secondary salinity and selected heavy metals (Pb, Zn, Cd, Ni and Cu) contamination in irrigated arable soils. To identify the potential source of soil pollution, we compared the concentration of salt and heavy metals (both total and mobile forms) in different soil types in three depths of soil profiles obtained from irrigated cultivated and non-cultivated (abounded) territory in the Shauldara massif in the southern part of Kazakhstan. All studied soils are prone to secondary salinization with either a medium or high content of sum of salts with domination by Na+ among cations and by SO42− among anions. The soil contamination with heavy metals was low, and, in most cases, except for cadmium, it was below the limits developed for arable soils in most countries. Soil contamination with cadmium results from contamination of the water used for irrigation of farmland.
A Study of the Effects of Soil Salinity on the Growth and Development of Maize (Zea Mays L.) by using Sentinel-2 Imagery
Shakhislam Uzakbaevich Laiskhanov, Zhassulan Maratuly Smanov, Kulyash Duisenbaevna Kaimuldinova, Nazira Berdigulovna Myrzaly, Nurbol Ergeshovich Ussenov, Maksat Nurbaiuly Poshanov, Zhassulan Maratuly Smanov, Bakdaulet Azimkhanov, Maksat Nurbaiuly Poshanov
Online Journal of Biological Sciences, 2022
Salinization of soil cover and the constant increase in their area have become one of the most pressing problems year after year for irrigated agriculture regions. The degradation processes caused by the salinity of soils negatively affect the growth and development of food crops. Therefore, this study focused on the effects of soil salinity in the midstream of the Syrdarya on the growth and development of maize where the climate is continental and mostly arid, and the cultivation of crops is possible under irrigation conditions. The study made harmonious use of remote sensing and field survey methods based on modern and traditional approaches in terms of time and space. Based on Sentinel-2 satellite images, regression analysis was carried out to determine the dependency of vegetation indices on soil electronegativity and maize biomass from 73 sampling points in the representative area. As a result, in the study of the growth and development of maize, it was found that the dependence of the Normalized Difference Vegetation Index (NDVI) on maize biomass within 18 vegetation indices was "high" (R2 = 0.76) in spring. The dynamics of maize biomass grown on soils of different salinity levels were developed. NDVI dynamics, which covers the entire growth phases of corn, showed that compared to corn grown in unsalted soils, it slows down the growth of corn in slightly saline soils-up to 11 days, in moderately saline soils -35 days, and in heavily (highly) saline soils -45 days. Characterization of soil salinity and other factors having a positive and negative influence on the growth and development of maize yield in the studied object is also given.
The Effects of the Degree of Soil Salinity and the Biopreparation on Productivity of Maize in the Shaulder Irrigated Massif
Maksat Nurbaiuly Poshanov, Shakhislam Uzakbaevich Laiskhanov, Zhassulan Maratovich Smanov, Serik Barmenbekovich Kenenbayev, Duman Toktarovich Aliaskarov, Yerzhan Rakhimkeldievich Abikbayev, Assem Sabitkanovna Vyrakhmanova, Aigerim Askanbek
Online Journal of Biological Sciences, 2022
During the study on the Shaulder irrigated massif, the soil salinity maps with different degrees of salinity were compiled at the large-scale 1:10000 in the GIS environment. It was found that the area of saline soils increases with depth. In the upper 0-20 cm layer, 29% is salted and in the 50-100 cm layer, up to 44% is salted. The theory of soil reclamation shows a close relationship between the level of concentration of salts accumulating in the soil and the state of the current crop. Determination of the effect of biopreparation was carried out in field studies. Pre-sowing treatment of maize seeds was carried out using a working solution of C-1-1 adaptogenpreparations in optimal technological modes developed by U.U. Uspanov Kazakh Research Institute of Soil Science and Agrochemistr y. Maize sowing was carried out in May to a depth of 6-8 cm in a common way with row spacing of 70 cm at the rate of 18-20 kg of seeds per 1 ha. Maize plants were sprayed in the phase of 4-5 leaves and 6-7 leaves; when corn forms the first and second tier of nodal roots, plants were sprayed with a biological product "BioEkoGum" with an aqueous solution. The study's findings showed that depending on the degree of soil salinity, the maize yield for grain increased on non-saline soils to 40.0% compared to the control of 71.1 c/ha. In lightly and medium-saline soils-81.2-83.9 c/ha at the control treatment (62.5-63.5 c/ha), the addition to yield was 30.0-32.1%, respectively. In highly saline soils, the yield of maize grain was 11.4 %, with the yield under control-47.1 c/ha. Application of biological preparation in the conditions of Shaulder irrigated massif allows making an income from 162.6 to 884.2 $ per 1 ha.
A Study of the Processes of Desertification at the Modern Delta of the IIi River with the Application of Remote Sensing Data
Shakhislam Laiskhanov, Maksat Poshanov, Zhassulan Smanov, Nursipa Karmenova, Kenzhekey Tleubergenova, Tazhihan Ashimov
Journal of Ecological Engineering, 2021
The water regime is the main factor contributing to the formation of landscapes in the river deltas of arid zones, any fluctuations in which lead to a change in the integral hydromorphic landscape. After the construction of the Kapshagai reservoir, the anthropogenic load on the ecosystem of the Ili River delta increased, as a result of which degradation processes, such as drying out and salinization, intensified. In the short term, this phenomenon may lead to the desertification of about 1 million ha of land in the modern river delta. In this regard, the main goal of this study is to look at the processes of desertification in the modern delta of the Ili River, using remote sensing data, which allows for quick identification of the long-term dynamics of degradation processes. For this, the authors used satellite data from Landsat 1-5 MSSS and Landsat 8OLI satellites for 1979 and 2019 and soil analysis data obtained through the ground (field) surveys. Using regression analysis of space and soil data, predictors for interpreting space images were identified and maps of landscape drying and soil salinization were compiled, reflecting the changes that have occurred over the past 40 years. As a result, it was found that in 2019, compared to 1979, the area of landscapes covered with vegetation had decreased by 12% and there was a transformation of hydromorphic landscapes into salt marshes and solonetzes. Over the past 40 years, the volume of non-saline soils has decreased by 41.3% and the volume of saline soils has increased to varying degrees. That is, at present, on the territory of the modern delta, a difficult land improvement situation has developed associated with the cessation of spring and summer floods due to the intensive water use at the Chinese and Kazakh sides.
The operational method of conducting large-scale salt survey and drawing salinity level maps of irrigated lands of the Akdalinsky array
Saken Nurzhanuly Duisekov, Azimbai Otarov, Sagynbai Kaldybaevich Kaldybaev, Maksat Nurbaiuly Poshanov, Shakhislam Uzakbaevich Laiskhanov
Biosciences Biotechnology Research Asia, 2015