共 9 条
[3]
HAGEMAN R. H., 1961, AGRON JOUR, V53, P175
[4]
Hewitt EJ, 1952, COMMONW AGR BUR
[5]
LYCKLAMA J. C., 1963, Acta Botanica Neerlandica, V12, P361
[6]
MCKEE HS, 1962, NITROGEN METABOLISM
[9]
WEISSMAN GS, 1951, AMER J BOT, V37, P725