The influence of mineral fertilizer rates on the grain yield of spring wheat varieties

Abstract

In this study, the influence of mineral fertilizer rates and ratios on the grain yield of spring wheat varieties «Janub Gavhari» and «Bahor-1» under the conditions of light sierozem soils of the Kashkadarya region was studied. In field experiments, when the feeding regime was optimized, positive indicators were recorded in the dynamics of plant growth and yield accumulation. Compared to the control variant without mineral fertilizers (N150 P90 K70 kg/ha), the highest efficiency was achieved in the variants where mineral fertilizers were applied, and grain yield increased by 24.0 centners per hectare (+24.0 c/ha) compared to the control. The results obtained allow for the correct determination of fertilizer rates when growing high and high-quality grain yields from spring wheat under the conditions of the region's light sierozem soils.