共 12 条
[1]
Allison LE, 1965, AGRONOMY MONOGRAPHS, V9, P1367
[2]
Bremner J.M., 1965, AGRONOMY, V9, P1148
[3]
COPE JT, 1970, 181 AL AGR EXP STN C
[4]
DALE AC, 1971, P NATIONAL S ANIMAL, P85
[5]
Day PR., 1965, METHODS SOIL ANAL 1, Vagronomymonogra, P545
[6]
DOSS BD, 1976, 495 AL AGR EXP STN B
[7]
Haider K., 1975, Soil Biology and Biochemistry. Volume 4 (Paul, E.A.
[8]
McLaren, A.D., Editors)., P195