Bentonite, fertilizers, water and grain yield

In the conditions of typical gray soils of Tashkent region, before sowing of winter wheat under the plow once in three years in addition to the norms of mineral fertilizers N₂₀₀P₁₄₀K₁₀₀ βα N₁₅₀P₁₀₅K₇₅ kg/ha 1,5-3,0-4,5 t per hectare. The effect of irrigation on soil agrophysical properties and plant growth and grain yield was studied for three years in the order of 60-70-60 and 70-80-70% of the soil moisture before irrigation during the period of application, using bentonite mud.