共 13 条
[2]
CHAPMAN H. D., 1936, JOUR AMER SOC AGRON, V28, P135
[3]
DUNCAN W. G., 1958, AGRON JOUR, V50, P605
[5]
GRUNES D. L., 1958, SOIL SCI SOC AMER PROC, V22, P43
[6]
LEIKAM DF, 1977, KANSAS FERT RES REP, V313, P20
[7]
LEIKAM DF, 1977, KANSAS FERT RES REP, V313, P45
[9]
MILLER M. H., 1958, AGRON JOUR, V50, P95