共 5 条
[1]
BARROW VL, 1955, WORLD CROPS, V7, P435
[2]
CHAPMAN HD, 1961, METHODS ANALYSIS SOI
[3]
Maas E. F., 1946, SCI AGRIC [OTTAWA], V26, P275
[4]
VLAMIS J., 1961, COMPOST SCI, V2, P26
[5]
1954, USDA60 HDB