共 10 条
[5]
HEALY RG, 1985, J SOIL WATER CONSERV, V40, P189
[6]
HOVELAND CS, 1981, B ALA AGR EXP, V533
[9]
MAHLER KA, 1987, MISC SERIES U IDAHO, V98
[10]
PWER JF, 1987, ROLE LEGUMES CONSERV