长期定位施用氮肥对菜田土壤肥力变化的影响

葛晓光;王晓雪;付亚文;刘秀茹;

Effect of Long-term,Fixed Position Nitrogen Application on Variation of Soil Fertility in Vegetable Field

Ge Xiaoguang;Wang Xiaoxue;Liu Xiuru et al.

中国蔬菜 . 1997, (5): 1 -0 .