共 26 条
[2]
BARROW NJ, 1971, AUST J EXP AGR ANIM, V11, P210
[4]
FOX R. L., 1964, SOIL SCI SOC AMER PROC, V28, P406
[6]
HAMM JW, 1970, P TECHNICON INT C NE, P65
[7]
JANZEN HH, 1986, CAN J SOIL SCI, V66, P91, DOI 10.4141/cjss86-010
[8]
JANZEN HH, 1982, P ALBERTA SOIL SCI W, P229
[9]
KITTAMS H. A., 1965, AGRON J, V57, P331
[10]
KOEHLER FE, 1983, 1982 P INT SULPH 82, V2, P833