共 22 条
[3]
BREMNER JM, 1965, METHODS SOIL ANAL 2, V9, P1179
[5]
CORNFIELD A. H., 1959, Journal of the Science of Food and Agriculture, V10, P27, DOI 10.1002/jsfa.2740100104
[6]
CORNFIELD A. H., 1964, Plant and Soil, V20, P260, DOI 10.1007/BF01376455