共 11 条
[1]
Bremner J.M., 1965, METHODS SOIL ANAL PA, P1149
[2]
Bremner JM, 1982, AGRONOMY, V9, P595, DOI DOI 10.2134/AGR0NM0N0GR9.2.2ED.C31
[6]
HAMBLETON L, 1976, ADV AUTOMATED ANAL, P147
[7]
LAVKULICH LM, 1977, METHODS MANUAL PEDOL
[8]
MITCHELL HL, 1972, J ASSOC OFF ANA CHEM, V55, P1
[9]
NELSON D W, 1972, Journal of Environmental Quality, V1, P423