共 13 条
[1]
ALLMARAS R. R., 1964, SOIL SCI SOC AMER PROC, V28, P271
[3]
BLEVINS RL, 1970, 187 U KENT PROGR REP
[7]
HATFIELD A. L., 1965, AGRON J, V57, P293
[8]
MOODY J. E., 1963, SOIL SCI SOC AMER PROC, V27, P700