Effect of planting density and fertilizers on productivity potato tubers

The results of experiments on accounting for planting density and the use of fertilizers are presented. The factors contributing to obtaining high quality and the potato crop with a sufficient amount of dry substances starch, high quality, the minimum content of nitrates and good condition of the tuber. An Amiri-600 potato variety was used in the experiment. The studies were conducted in 2014-2016. Of mineral fertilizers, ammonium nitrate, simple superphosphate, and potassium sulfate were used. As a result of the work, it was found that in the grey-brown (chestnut) irrigated soils of the Ganja-Gazakh zone of Azerbaijan, to obtain a high and high-quality crop of potato tubers, the optimal fertilizer dose is recommended - manure 20 t/ha+N90P120K90 kg/ha.