Influence of autumn irrigation on soil N leaching loss of different farmlands in Hetao irrigation district, China
河套灌区秋浇对不同类型农田土壤氮素淋失的影响

Autumn irrigation is a particular irrigation system, which washes salt to deeper soil profile and keeps higher soil water content for cultivating next spring cr ops in Hetao Irrigation District of China. Autumn irrigation occurs during the n on-growing season and may cause leaching of any nitrates left in the soil profi l e. However, this nitrate leaching has been rarely paid attention. The paper is a imed to determine and compare the effects of autumn irrigation on soil nitrate l eaching among different fa...