共 8 条
- [6] 中国科学院南京土壤研究所 编.土壤理化分析[M].上海:上海科学技术出版社,1978
- [7] Miller M P,Singer M J,Nielson D R.Spatial variability ofwheat yields and soil properties on complex bills[K].Soil Sci-ence Society of America Journal,1988
- [8] Williams JR, Renard KG, Dyke PT.EPIC-A new method for assessing erosion' s effect on soil productivity[K].Journal of Soil and Water Conservation,1983