Effect of sowing dates, application rates of fertilizers on economically valuable indicators of cotton-plant

The effect of the use of mineral fertilizers together with manure on irrigated gray-brown (chestnut) soils in the Ganja-Dashkesan economic region when growing cotton is considered. Based on the data obtained, it was found that in the sowings carried out on April 10-15, the weight of 1000 seeds at the end of the growing season due to the complex action of manure and mineral fertilizers during sowing was 12.4-14.3 g, the weight of cotton was 0.9-1,1 g, fiber yield 1.1-1.2%. The productivity of the fiber was 6.2-6.5 cwt/ha, and the length of the fiber was 1.0-1.1 mm. Thus, the largest number of economically valuable indicators of raw cotton was observed in the variant of manure 10 t/ha + N90P120K90.