The application of geostatistical assessment serves as a methodological tool for creating thematic maps, which provide a visual aid for objectively assessing the current state of the republic’s soil and land resources and planning their optimal use. Using GIS analysis and soil-agrochemical survey data characterizing the agro-ecological conditions for crop growth, thematic cartograms were created for optimal placement of heat-loving and drought-resistant crops (sorghum, millet, sweet clover, and sainfoin) and individual legumes (peas, vetch, and pelushka) based on a comprehensive consideration of their soil and agro-ecological growing conditions. These thematic cartograms provide a scientific basis for a differentiated approach to the use of arable land soil resources. For the first time, comprehensive cartograms of the soil-agroclimatic potential for the placement of heat-loving crops (soybeans and sunflowers) and the soil-agroecological potential of the republic’s arable lands for growing individual legumes (peas, vetch, and pelushka) have been developed.

   This article presents the results of a study of the soil cover structure of drained lands at two study sites, demonstrating a significant impact of agricultural intensity on peat soil degradation. It has been established that at site 1, with preferential meadow land use, peat depletion occurred on 11,2 hectares (60,3 % of the area) over a 30-year period. At site 2, with intensive arable land use, mineralization and depletion of the peat horizon occurs, resulting in a fivefold decrease in organic matter in peat-gley soils. Analysis of morphometric parameters of the soil cover structure revealed an increase in the complexity and heterogeneity coefficients at site 2 from optimal to acceptable (from 0,38 to 1,83 and from 0,86 to 3,55, respectively). Using Sentinel-2 multispectral images for soil cover mapping, a relationship between organic matter and near-infrared radiance was confirmed, expressed through a power function with a determination coefficient of 0,59 and a correlation ratio of 0,77.

   The article presents an automated complex for calculating the radiological and agronomical suitability of soils for growing various crops in areas contaminated with ¹³⁷Cs and ⁹⁰Sr. The complex was developed in Python 3 using the ArcPy library and implemented as a custom toolbox RadioAgroSuitability (19 tools) for ArcGIS Pro. The tools enable the automated creation of thematic suitability cartograms and generation of area explication tables with accuracy up to 1 mІ. A whitelist filter is provided for selecting the plots to be analysed. Testing was conducted on the lands of agricultural enterprise «Oborona» in Dobrush district (4562,6 ha). The main cultivation restrictions were found to be associated with the agronomical unsuitability of sandy soils and elevated ⁹⁰Sr content. The most restricted crop is pea (only 17,7 % of arable land is suitable for food and feed purposes), while the least restricted are perennial grasses and winter rye (practically unrestricted). Significant restrictions were recorded for winter wheat (28,4 % unsuitable), lupine (29,7 %) and alfalfa (25,7 %). The developed complex significantly accelerates data processing, improves the accuracy and objectivity of assessments, and can serve as a foundation for a decision-support system in crop rotation planning on radioactively contaminated territories.

   This article presents an analysis of the current state of radionuclide-contaminated soils in arable land in the Mogilev Region. The studies revealed that arable land contaminated with ¹³⁷Cs and ⁹⁰Sr in the Mogilev Region is dominated by sod-podzolic and sod-podzolic boggy soils in terms of typical composition, sandy loam soils in terms of particle size distribution, and automorphic soils in terms of hydromorphism. An analysis of the qualitative condition of the soils revealed that the average weighted soil quality rating of arable land contaminated with radionuclides is higher than the district average only in the Bobruisk, Klimovichsky, Kostyukovich, Krichevsky, and Slavgorod districts. The lowest score was recorded in the Belynichisky district (42,8), and the highest in the Krichevsky district (63,6). It was established that the weighted average ¹³⁷Cs contamination of arable land in most districts of the Mogilev Region is less than 5.00 Ci/kmІ, while ⁹⁰Sr-contaminated arable land is located in the Bykhov, Kostyukovich, Krasnopolsky, Slavgorod, and Cherikov districts. Considering the soil structure of the contaminated lands and the level of cesium-137 and strontium-90 contamination, as well as the maximum permissible radionuclide contamination densities for agricultural crop cultivation, the Kostyukovich, Cherikov, and Slavgorod districts are the most likely districts to produce produce with exceeding radionuclide levels.

   Technological features of the use of new forms of complex mineral fertilizers for sugar beets, flax, winter rape, winter and spring crops, balanced in their composition, taking into account the biological features of these crops, are presented. The long-term need for complex mineral fertilizers for sugar beets, flax, winter rape for the period up to 2030 has been determined. In 2030, the recommended requirement for complex mineral fertilizers is 287 thousand t c., and in total for 2026–2030 it is planned to use them in the crop industry of agriculture in the amount of 1018 thousand tons.

   Three-year studies with hybrid winter rye were conducted on sod-podzolic soils. The grain yield of winter rye hybrid KVS Vinetto due to the effective fertility of medium-cultivated sod-podzolic sandy loam soil for an average of 3 years was 39,4 kg/ha, highly cultivated light loamy soil was 57 % higher – 62,0 kg/ha. The maximum yield was obtained with an organomineral fertilizer system: on medium-cultivated soil – with the application of N₇₀₊₃₀P₅₀K₉₀ against the background of plowing straw with a compensating dose of nitrogen (82,3 c/ha), on highly cultivated soil – with the application of N_70+30+40P₂₅K₆₀ against the background of plowing straw with a compensating dose of nitrogen (96,4 c/ha). The standard removal from 1 ton of hybrid winter rye grain and the corresponding amount of straw on medium-cultivated sod-podzolic sandy loam soil was: nitrogen – 15,6 kg, phosphorus – 6,3 kg, potassium – 14,8 kg: on highly cultivated light loamy soil it was higher and amounted to: nitrogen – 18.3 kg/t, phosphorus – 8,2 kg/t, potassium – 16,8 kg/t.

   A series of in vitro experiments were conducted cultivating phosphate-mobilizing rhizobacteria in a modified Dworkin-Foster liquid nutrient medium with varying concentrations of herbicide as a phosphorus source. Planar (thin-layer) chromatography was used to study glyphosate biodegradation. Experimental data indicate that Pseudomonas spp. (P-6, P-7, P-11, P-15, P-42) rhizobacteria from the collection of the Institute of Soil Science and Agrochemistry metabolize glyphosate to safe sarcosine (methylglycine, Rf = 0,54 ± 0,022) and inorganic phosphate (Pi) without forming toxic aminomethylphosphonic acid. Using the data below on the inorganic phosphate (Pi) content in the cell-free culture fluid and taking into account the chemical composition of glyphosate, the destructive activity indices were calculated. At glyphosate concentrations of 300 mg/l, the destructive activity of Pseudomonas sp. P-6, Pseudomonas sp. P-7, Pseudomonas sp. P-11, Pseudomonas sp. P-15 and Pseudomonas sp. P-42 sources in some cases was 45,8–65,6 %. At glyphosate concentrations of 500 mg/l, the activity of GP destruction by strains of rhizobacteria Pseudomonas spp. (P-6, P-7, P-11, P-15, P-42) was within 43,1–50,1 % and was respectively: 43,1 %; 43,8 %; 48,4 %; 44,9 % and 50,1 %.

   In vitro laboratory experiments, strains of Rhizobium trifolii (Rh. trifolii R-45, Rh. trifolii R-107 и Rh. trifolii R-63/3) decompose glyphosate at the phosphonic C-P bond to form safe methylglycine (sarcosine). The destruction activity of Rhizobium trifolii symbiotic rhizobacteria strains at a glyphosate concentration of 300 mg/l was 23,9 %, 26,7 %, 43,2 %, at a concentration of 500 mg/l – 24,2 %, 24,8 %, 36,8 %, respectively. The ability of Rhizobium trifolii rhizospheric bacteria to metabolize the herbicide glyphosate in an environmentally friendly way indicates their promise as inoculants, in particular in conditions of intensive use of the herbicide glyphosate.

   The article presents the results of research on the study of the most effective doses of zinc fertilizer in the technology of pea cultivation on sod-podzolic sandy loam soil with different levels of zinc content. In the technology of pea cultivation on sod-podzolic sandy loam soil, low- and medium-provided with zinc, foliar top dressing of peas with zinc fertilizer at a dose of 0,12 kg/ha increases grain yield by 5,7 and 3,9 c/ha, increases protein content by 1,6 and 1,2 % with profitability of 177 and 138 %, respectively.

   The article discusses a system of applying fertilizers on peat soil that promotes maximum productivity of perennial legume grasses, as well as the zootechnical quality of feed and minimal accumulation of radionuclides in them. It was determined that when sodding hayfields with legume grasses on low-lying peat-bog soils with low content of phosphorus, potassium and contaminated with radionuclides, it is most effective to apply mineral fertilizers in doses: nitrogen – 60 kg/ha active ingredient, phosphorus – 60–90 kg/ha active ingredient, potassium – 180–240 kg active ingredient and copper – 50 g/ha active ingredient.

   This article evaluates the accumulation of the main trace elements (Cu, Zn and B) in the soil, the environmental problems associated with the impact of trace elements on the environment, separately analyzed the potentially adverse effects of the impact of trace elements on the human body and their impact on health, the technology of safe application of microfertilizers is considered.

   The article presents the results of a study of the spatial differentiation of agrochemical and agrophysical properties of deflation-hazardous soils of the Belarusian Polesie using a 1,4-hectare plot in the Kalinkovichi District of the Gomel Region as an example. A noticeable variability of soil properties was established on a small genetically homogeneous plot. The humus content is predominantly low, locally average – in the central part (points 6 and 7), with a minimum value of 1,21 % at point 11. The reaction of the environment is close to neutral and localized in the western part of the plot. The content of mobile phosphorus varies from very low to average values 51–145 mg/kg of soil, and mobile potassium – from 94 to 526 mg/kg of soil. The degree of base saturation is high (65,8–94,8 %), and the density is within the optimal values for sandy soils (1,30–1,45 g/cm³). The proportion of the < 1,0 mm fraction is critically low (up to 13 % at only a few points). Correlation analysis revealed a strong direct relationship between pH and V (R = 0,83; RІ ≈ 0,69). Ca content demonstrates moderate relationships with V and pH (R ≈ 0,56–0,57). A strong negative relationship was found between the proportion of particles < 1,0 mm and density (R = –0,70; RІ = 0,52), confirming the leading role of this fraction in soil resilience to deflation. These results highlight the need to monitor drained soils and consider spatial heterogeneity in reclamation and agricultural practices.