Influence of seeding rates and nutrition conditions on the yield of soft wheat on ridge sowings under irrigated conditions

The research was carried out in a 2-factor (3x3) field experiment on ridge crops of the Tartar regional experimental station of the Azerbaijan Research Institute of Agriculture under the irrigation conditions of the Karabakh plain and the results obtained are presented in the article. The object of the study was the soft wheat variety Onur. Three variants of each factor were studied against the background of seeding rates and nutritional conditions. So, the seeding rate is 2 million/pcs. (90-100 kg/ha), 3 million/piece. (130-140 kg/ha) and 4 million/piece. (170-180 kg/ha), and against the background of nutritional conditions, the studies were carried out by experiment in 3 replications in the variant without fertilizers, N90P60 and N120P90. The crop was collected directly by a combine at the full ripening phase for each replicate, and after harvesting, the yield was determined by weighing the crop. Based on the results obtained, an analysis of variance was carried out using the Spss 26 computer program. Thus, according to the average 3-year research result for the 2020-2023 growing season, it was established that sowing rates and nutritional conditions are important in increasing the grain yield of soft wheat. Thus, as the seeding rate increased, the yield increased, but after reaching the optimal rate, increasing the rate reduced the yield. Against the background of nutritional conditions, an increase in productivity was observed with an increase in the amount of nitrogen and phosphorus by 30 kg due to the active substance. As a result of the experiment, optimal seeding rates and nutritional conditions were established, the fertilizer rate N120P90 was introduced at a seeding rate of 3 million/pcs (130-140 kg/ha), the yield of the soft wheat variety Onur was 68.2 c/ha.