共 7 条
[1]
Beaton J. D., 1971, Fertilizer Technology & Use., P335
[3]
FENN LB, 1974, SOIL SCI SOC AM P, V38, P206
[6]
Russell, 1973, SOIL CONDITIONS PLAN
[7]
VOLK GAYLORD M., 1959, AGRON JOUR, V51, P746