Agrochemical Characterization and Nutrient Dynamics in West Kazakhstan Agricultural Soils: Implications for Sustainable Crop Productivity Under Irrigated and Rainfed Systems
Esbulatova A. Rakhimgaliyeva S. Moghanm F.S. Kuanaliyeva M.K. El-Namas A.E.
September 2025National Information and Documentation Centre
Egyptian Journal of Soil Science
2025#65Issue 31457 - 1469 pp.
THE PRESENT study aims at analyzing the application of modern tools for nutrient status check of farmlands. The process constituted an automatic sampler, a digital server, and Offline Maps software using geopositioning and geodata files in KML format. Now, following the method, the latest phase will likely have synergy with soil sampling, chemical analysis, statistics in data processing, and digital mapping further allowing modern agrochemical assessments with time and cost reductions. A method of use of the automated sampler was created to investigate the benefits of digital technologies and automation in improving soil agrochemical study efficiency. Thematic digital maps for irrigated and non-irrigated arable soils in Western Kazakhstan were developed to represent the spatial distribution of nitrate nitrogen, available phosphorus and potassium, sulfur content, organic matter, and pH of soils at each sampling point. The carbon content of irrigated plots was very low, situated in the range of 0.93-1.62%. The nitrate Nigeria contents of soils were very low, situated within the range of 1,19-2,82 mg/kg. Available forms of phosphorus also registered low levels within the range of 7.54-11.82 mg/kg, while the available form of potassium registered considerably higher values, within the range of 496.7-751.5 mg/kg. Considerably less carbon content was found in our plots that were not treated with irrigation, ranging between 1.4 and 1.9%. Nitrate nitrogen contents ranged between 0.96 and 6.69 mg/kg, while the amount of available phosphorus was quite low and varied between 3.0 and 6.0 mg/kg. Available potassium levels, however, were extremely high, from 633.8 to 952.9 mg/kg. A strong and statistically significant correlation was identified between carbon and available phosphorus content (R = 0.83, p < 0.05). Utilization of electronic soil maps per plot allows exact separation for application of fertilization with regard to the content of plant nutrients, organic matter content and pH of the individual plots. Cartograms are the keystone of precision agriculture, laying a solid basis for the resource effective application of fertilizers and higher yields.
Agrochemical analysis , Digital technologies , Fertilizer optimization , Geodata , Precision agriculture , Western Kazakhstan
Text of the article Перейти на текст статьи
Zhangir khan West Kazakhstan Agrarian-Technical University, st. Zhangir Khan, 51, Uralsk, 090000, Kazakhstan
Soil and Water Department, Faculty of Agriculture, Kafrelsheikh University, Kafr El-Sheikh, 33516, Egypt
Soil and water department, Faculty of Agriculture, Alex. University, Alexandria, Egypt
Zhangir khan West Kazakhstan Agrarian-Technical University
Soil and Water Department
Soil and water department
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026