This paper presents data on the effects of cotton maintenance on cotton yield under lysimeter conditions in reducing the adverse effects of water deficit. New, promising and zoned cotton varieties were analyzed by taking soil samples at the end of the vegetation period after applying mineral fertilizers, irrigation, and inter-row tillage. That is, the amount of humus in the soil compared to the beginning of the period of operation, at the end of the period of operation in the lysimeter with new varieties in the lysimeter with the regionalized Bukhara-8 and Sultan varieties, is explained.

Cotton, irrigation rate, seasonal irrigation

Decision of the President of the Republic dated December 29, 2015 No. PQ-2460 "2016-2020 йилларда қишлоқ хўжалигини янада ислоҳ қилиш ва ривожлантириш чора-тадбирлари"

Decree of the President of the Republic of February 14, 2017 No. F-4849 "2017-2021 йилларда Ўзбекистон Республикасини ривожлантиришнинг бешта устивор йўналиши бўйича ҳаракатлар стратегиясини амалга оширишга доир ташкилий чора-тадбирлар тўғрисида" .

Khamidov M.Kh., Jo'raev U.A., Reducing the mineralization of collector-drainage waters by biological method-an effective method of mitigating water scarcity // Journal of Irrigation and Reclamation. Tashkent, 2016. No. 3 B. 25-27.

Khamidov M.Kh., Zhuraev A.K., Zhuraev U.A., Khamraev K.Sh., Urinbaev S.K. , Reducing the salinity of collector-drainage waters by a biological method //- Agricultural sciences and agro-indn3mwustrial complex at the turn of the century, Collection of materials III International Scientific and Practical Conference. - Novosibirsk, 2016. - Art. 53-57.

Balla D., Khamidov M., Zhuraev U., Suvanov B., Matyakubov Zh., Maassen S., Khamidov A., Pytomelioration for desalination of surface water in irrigation-drainage systems in Uzbekistan // InDeSA Series, Designing Social Institutions in Transition Promotion of Institutional Development for Common Pool Resources Management, InDeCA Discussion Paper 3/2015 Berlin -2015. pp. 24-30.