共 4 条
[2]
中国土壤[M]. 科学出版社 , 中国科学院南京土壤研究所 主编, 1978
[3]
Some significance of soil organic phosphorus mineralization in the phosphorus nutrition of cocoa in Ghana[J] . D. K. Acquaye.Plant and Soil . 1963 (1)
[4]
1959: Determination of fixed ammonium in soil. Bremner, J. The Journal of Agricultural Science .