共 20 条
[1]
BARKER WF, 1956, S AFR J SCI, V52, P169
[2]
BETHLAHMY NEDAVIA, 1963, SOIL SCI, V95, P211, DOI 10.1097/00010694-196303000-00009
[3]
BLACK CS, 1965, METHODS SOIL ANAL ED
[4]
BROADFOOT WM, 1958, 166 US FOR SERV SOU
[5]
Cochran WilliamGemmell., 1963, PREIS S BIOM J, V2nd ed., DOI [DOI 10.1002/BIMJ.19650070312, 10.1002/bimj.19650070312]
[6]
DAVIS FL, 1936, 244 AL AGR EXP STA B
[7]
HAMMOND LUTHER C., 1958, SOIL SCI SOC AMER PROC, V22, P548
[8]
HARRADINE FF, 1950, SOIL SCI SOC AM P, V14, P302
[9]
JACOB W. C., 1956, Soil Science Society of America. Proceedings, V20, P170
[10]
KRUMBACH A. W., 1960, S FOREST RES, V1, P11