NAMANGAN VILOYATI MINGBULOQ TUMANI SUG‘ORILADIGAN YERLARIDA TUPROQ UNUMDORLIGI KO‘RSATKICHLARINI BAHOLASH

Abstract

This study focuses on the assessment of soil fertility indicators in irrigated agricultural lands of the Mingbulok district, Namangan region. The results show that the soils are predominantly irrigated meadow soils with a heterogeneous texture ranging from sandy to heavy loam. Medium and heavy loam soils account for more than 63% of the total area. Agrochemical analysis revealed that soil organic matter (humus) content ranges from 0.6 to 1.8%, indicating a moderate level of organic matter supply. Available phosphorus content varies between 15-30 mg/kg, while exchangeable potassium ranges from 100 to 250 mg/kg. The findings indicate that low humus content is the main limiting factor affecting soil fertility, along with the influence of soil texture on water and nutrient dynamics. The results provide a scientific basis for improving soil fertility management and ensuring sustainable use of irrigated agricultural lands.