SPRING WHEAT PRODUCTIVITY DEPENDING ON SYSTEM OF MAIN SOIL TREATMENT AND HUMIC FERTILIZERS IN THE FOREST-STEPPE ZONE OF VOLGA REGION
In stationary field experiment, the efficiency of various systems of fallow soil cultivation and humic fertilizers was evaluated in the cultivation of spring wheat. Two-phase dumping of soil, including post-harvest disking and plowing, optimized the soil density and the supply of productive moisture in a meter layer. Minimal small primary tillage reduced the productivity of spring wheat by 0.16, two-phase unedged wheat - 0.12 t/ha. Gumostim humic fertilizer exerted a greater influence on the growth, development and formation of spring wheat yield. Presowing treatment of seeds with this fertilizer contributed to an increase in yield by 0.49-0.52 t/ha. Foliar treatment of crops in the tillering phase provided an increase in yield by 0.21-0.24 t/ha. Joint processing of seeds and vegetat- ing plants increased yield by 0.55-0.58 t/ha. The yield of culture in variants with the use of humic fertilizer of po- tassium humate was at the level of control, rendering insignificant influence on all variants of the experiment.