Physico-chemical indicators of soil condition depending on sugar beet growing technology

Abstract

Aim. The research was to identify the impact of the use of various combinations of elements of agricultural technologies on the change in the physico-chemical indicators of the state of chernozem typical for the cultivation of sugar beets. Methods. 16 variants of the rich-factorial field trial, included control without fertilizer, mineral system of life (170 NPK), organic (70 t / ha with pus) and organo-mineral in five-fold fruiting and grain-producing changes on aphids and crops ntu stratifier. The scheme for dealing with sucrose beetroot included options for mineral and organic fertilizers. At the last victorious, they sang the sap of rot. Control (without additives), N170 P170 K170, rot 70 t/ha, N170 P170 K170 + rot 70 t/ha. Results. In the variants without fertilization, the reaction of the soil solution was close to neutral, which indicates the absence of the influence of crop rotation types and methods of basic tillage on the indicator of its exchangeable acidity. The use of an organomineral fertilizer system, regardless of the type of crop rotation and methods of basic tillage, ensured the creation of an optimal for sugar beet plants, a slightly acidic reaction of the soil solution of 5.66 – 5.90 units. The difference between the value of the cation exchange capacity in the upper layers compared to the 20–30 cm layer was 4.7 – 5.4 meq/100 g of soil. Conclusions. The use of mineral fertilizers made it possible to increase the absorption capacity of the soil by 3–4 mg-eq. The values obtained on plots with the organic fertilizer system are almost identical to the control values, and the organo-mineral system was equivalent to the use of mineral fertilizers alone.