Agrochemical Characterization and Nutrient Dynamics in West Kazakhstan Agricultural Soils: Implications for Sustainable Crop Productivity Under Irrigated and Rainfed Systems | ||||
| Egyptian Journal of Soil Science | ||||
| Article 12, Volume 65, Issue 3, September 2025, Page 1457-1469 PDF (853.74 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejss.2025.389923.2195 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Altyn Esbulatova1; Saule Rakhimgaliyeva1; Farahat S. Moghanm  2; Mendygul Kuanaliyeva1; Ashraf E. Elnamas3
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| 1Zhangir khan West Kazakhstan Agrarian - Technical University, Kazakhstan, 090000, Uralsk, st. Zhangir Khan, 51 | ||||
| 2Soil and Water Department, Faculty of Agriculture, Kafrelsheikh University, Kafr El-Sheikh 33516, Egypt | ||||
| 3Soil and water department, Faculty of Agriculture, Alex. University, Alexandria, Egypt | ||||
| Abstract | ||||
| 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, mobile 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. Mobile forms of phosphorus also registered low levels within the range of 7.54-11.82 mg/kg, while the mobile 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 mobile phosphorus was quite low and varied between 3.0 and 6.0 mg/kg. Mobile 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 mobile 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. | ||||
| Keywords | ||||
| Digital technologies; Agrochemical analysis; Geodata; Precision agriculture; Fertilizer optimization; Western Kazakhstan | ||||
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