共 14 条
[1]
ALBRITTON D. J., 1957, AGRON JOUR, V49, P410
[3]
DEMOLON A, 1930, 2 P INT C SOIL SCI C, V4, P86
[4]
DEMOLON A, 1934, ANN AGRONOM, V4, P53
[5]
DICKMAN S. R., 1940, Industrial and Engineering Chemistry. Analytical edition, V12, P665, DOI 10.1021/ac50151a013
[7]
JOHNSTON H. W., 1959, NEW ZEALAND JOUR SCI, V2, P215
[10]
LAWS WD, 1950, SOIL SCI SOC AM PRO, V15, P89