Efficiency of drip irrigation technology of cotton in saline soils of Bukhara oasis

Abstract

This article presents the results of scientific research on the use of cotton drip irrigation technology in conditions of water scarcity, saving water resources, assessing the growth and yield of cotton. At the same time, the technology of drip irrigation in the cultivation of the “Bukhara-102” variety of cotton was compared with the options grown in the traditional way. During the experiments, in the control field for the cultivation of the Bukhara-102 variety of cotton, i.e. in the 1st variant, which was irrigated by land invasion, irrigation was carried out 5 times during the growing season according to the scheme 1-3-1. 1240 cbm∙ha-1, the seasonal irrigation norm, was 4780 cbm∙ha-1; in drip irrigation in variant 2, the irrigation regime was 8 times. The cotton was irrigated according to the scheme 2-5-1. During the period of cotton growing and irrigation, irrigation works were carried out at the rate of 462-488 cbm∙ha-1 and seasonal irrigation at the rate of 3339 cbm∙ha-1. Less water was used in 1916 cbm∙ha-1. When the effect of drip irrigation technology on the yield of cotton was studied, the yield of cotton in the first variant was 3.58 t∙ha-1, while in the second variant of drip irrigation was 4.49 t/ha-1. This is 0.91 t∙ha-1 higher than the control variant.