Effects of saline water irrigation and fertilization regimes on soil microbial metabolic activity

Abstract

Purpose: Irrigation and fertilization can change soil environment, which thereby influence soil microbial metabolic activity (MMA). How to alleviate the adverse effects by taking judicious saline water irrigation and fertilization regimes is mainly concerned in this research. Materials and methods: Here, we conducted a field orthogonal designed test under different saline water irrigation amount, water salinity, and nitrogen fertilizer application. The metabolic profiles of soil microbial communities were analyzed by using the Biolog method. Results and discussion: The results demonstrated that irrigation amount and fertilizer application could significantly change MMA while irrigation water..