共 8 条
[1]
ALBERDA T., 1965, NETH AGRI SCI, V13, P335
[2]
ASHER C. J., 1965, SOIL SCI, V100, P149, DOI 10.1097/00010694-196509000-00001
[3]
Fried M., 1967, SOIL PLANT SYSTEM RE
[4]
HEGARTY TW, 1973, J EXP BOT, V24, P130
[5]
HEWITT EJ, 1966, 22 COMM AGR BUR COMM
[8]
SCOTT RO, 1970, 1969 P WAAPIBP INT S, P497