Nitrogen Mineralization Potential of Soil Amended with FYM under Different Temperature

Abstract

Mineralization of nitrogen is the release of organically bound N from organic matter to the plant available mineral form (NH+ 4 -N, NO-3 -N). It is an important process where the unavailable N becomes available for the plant and microbes use. The NO 3 -N is usually the dominant form of plant available N in most arid and semiarid region [1]. Addition of dairy manure often increase yield mainly because of increased plant nutrient availability through mineralization and improved soil structure [2]. Ismaily., et al. [3] reported that the N and C states of arid and semi arid agriculture soil increased with the application of manure. Changes in N mineralization are directly related to microbial activity and biomass inputs, which are affected by abiotic factors including temperature and soil moisture [4], soil wetting and drying cycles [5], soil texture [6], and soil characteristics [7,8].