MEASURES TO IMPROVE THE FERTILITY OF SALINE SOILS AND THE IMPORTANCE OF THE LEGUME–RHIZOBIUM SYMBIOSIS IN ALFALFA

Ruzimov Jumanazar,Normatova Xolida Ravshanbek kizi

doi:10.55640/

Authors

Ruzimov Jumanazar,Normatova Xolida Ravshanbek kizi Scientific Supervisor,Associate Professor, Department of Agronomy Faculty of Natural and Agricultural Sciences Urgench State University named after Abu Rayhan Beruni,First-year Master’s Student in Soil Science Urgench State University named after Abu Rayhan Beruni

DOI:

https://doi.org/10.55640/

Keywords:

saline soils, alfalfa, rhizobium, legumes, soil amelioration, biological nitrogen fixation, salt leaching, nitragin.

Abstract

This review article analyzes the measures used to restore the fertility of saline soils and the mechanisms of biological nitrogen fixation and soil properties improvement by alfalfa through legume-rhizobium symbiosis. Based on scientific sources, the mechanisms of improving the properties of saline soils, salt tolerance of legumes, rhizobacteria reducing soil salts and stimulating plant growth were studied. Studies show that alfalfa improves the amelioration of soils, reduces salinity, and reduces the level of groundwater in the surface layer. This property of alfalfa is associated with a strongly developed root system. Alfalfa accumulates 300-400 kg of nitrogen per 1 ha of area for 3 years.

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