北方旱地土壤氮素平衡

赵振达, 张金盛, 任顺荣, 周艺敏

The Nitrogen Balance of Crop Field Soil in North Area of China

Zhao Zheada, Zhang jinsheng, Ren Shunrong, Zhou Yimin

华北农学报 . 1988, (4): 67 -72 . DOI: 10.3321/j.issn:1000-7091.1988.04.013