共 15 条
[5]
Clark F. E., 1970, Advances in Agronomy, V22, P375, DOI 10.1016/S0065-2113(08)60273-4
[6]
COUPLAND RT, 1973, 11 U SASK MAT PROJ T
[7]
COUPLAND RT, 1973, 33 U SASK MAT PROJ T
[8]
COUPLAND RT, 1973, 27 U SASK MAT PROJ T
[9]
HARLEY CP, 1951, P AM SOC HORTIC SCI, V57, P17
[10]
JONG E. DE, 1972, Soil Science, V113, P328, DOI 10.1097/00010694-197205000-00006