CHEMICAL AND BIOLOGICAL ASSESSMENT OF NITROGEN CYCLE PROCESSES IN AGRICULTURAL SOILS
Abstract
The nitrogen cycle is one of the most important biogeochemical processes supporting soil fertility and plant productivity. Agricultural soils are strongly influenced by nitrogen fertilizers, microbial activity, and environmental conditions. This study analyzes chemical and biological aspects of nitrogen transformation in agricultural soils. The findings indicate that nitrification, denitrification, ammonification, and nitrogen fixation regulate nutrient availability and affect environmental sustainability.
Keywords
nitrogen cycle, agricultural soils, nitrification, denitrification, soil biology, nitrogen fertilizers
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