POTENTIAL OF NITROGEN-FIXING BACTERIA IN VARIOUS SALINATED COTTON FIELDS OF TASHKENT REGION, REPUBLIC OF UZBEKISTAN.

Suyunova Guljaxon Uchqunovna; Fayziyev Elyor Aliyevich; Qorayev Srojiddin barakayevich; Valiyeva Zarifa Ibrohim Qizi

doi:10.55640/

Authors

Suyunova Guljaxon Uchqunovna Urgut branch of Samarkand State University named after Sharof Rashidov
Fayziyev Elyor Aliyevich Urgut branch of Samarkand State University named after Sharof Rashidov
Qorayev Srojiddin barakayevich Chirchik State Pedagogical University
Valiyeva Zarifa Ibrohim Qizi Chirchik State Pedagogical University

DOI:

https://doi.org/10.55640/

Keywords:

agrocenosis, microorganisms, cultivated plants, alfalfa, wheat, biomass, root system, biological chain.

Abstract

his study presents data on the factors affecting the activity of nitrogen-fixing associative bacteria in the climatic conditions of Uzbekistan and the effect of treatment with a suspension of nitrogen-fixing bacteria on the responses of cultivated plants in the early stages of development.

In soils of various mechanical composition, the main maintainers of a positive balance of organic matter are annual legumes, the accumulation of organic matter is observed in fodder and cereal crops from 0.6 to 1.1 t/ha, as well as in cereals from 2.2-3.3 t/ha, medicago and other similar plants. medicago, leguminous crops up to 6.6 t/ha. On irrigated gray soils and irrigated fertile soils with a cotton yield of 30 t/ha, about 0.7-1.0 t/ha of humus is consumed, which, in addition to the humus and root residues of cotton, requires 8-10 t/ha of manure or other types of organic fertilizers.

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