共 16 条
[1]
Bhatti Aman Ullah, 1995, Journal of the Indian Society of Soil Science, V43, P53
[4]
Harsh J. P., 1988, LAB MANUAL SOIL ANAL
[7]
Mulla D. J., 1990, Dryland agriculture: strategies for sustainability., P201
[9]
Nelson D. W., 1982, Methods of soil analysis. Part 2. Chemical and microbiological properties, P539
[10]
Nelson R. E., 1982, Methods of soil analysis. Part 2. Chemical and microbiological properties, P181