The influence of dolomite flour, mycorrhiza and perennial leguminous grasses on the granulometric composition of agro-soddy-podzolic sandy loam soil of the Republic of Tatarstan

The article presents the intermediate results of the studied agricultural practices for 2023-2024, carried out on sod-podzolic sandy loam soil of the arable horizon (0-20 cm). The experimental design involves a mixture of perennial legumes (sainfoin, alfalfa, timothy) in combination with added dolomite flour and mycorrhiza Kormilitsa BashIncom. Organic matter increased in the dolomite flour + mycorrhiza + perennial leguminous grasses variant and amounted to 2.2% (initially the background organic matter indicator was 1.7%). In the same variant, the content of coarse dust increased - 35.88, and the acidity of the soil increased to 7.4 (alkaline pH). Soil aggregates of 0.25-10 mm% with >70% wet screening are rated as excellent. Option with dolomite flour + mycorrhiza + m.b.t. was 88%, this figure is suitable for growing many crops. By the efficiency of filling the roots of leguminous plants with fungal mycorrhiza, one can judge the processes of mycorrhization; the highest point of fungal assimilation was achieved in the experiment with dolomite flour - and amounted to 90%.