The study also discovered that both the present fertilization system based on inorganic N and inorganic P and the present system of continuous cropping of corn had greats effect on balance of soil nutrients.
The study also discovered that both the present fertilization system based on inorganic N and inorganic P and the present system of continuous cropping of corn had greats effect on balance of soil nutrients.
研究还发现，现行的以无机氮磷肥为主的施肥制度和玉米连作种植制度对土壤养分平衡有很大影响。