共 7 条
[1]
HILL WL, 1955, J ASSOC OFF AGR CHEM, V38, P874
[2]
KAPUSTA EC, 1958, COM FERTILIZER, V97, P24
[3]
SCOTT WC, 1961, AGR CHEM, V16, P16
[4]
SCOTT WC, 1961, AGR CHEM, V16, P93
[7]
SOHIOGEN NITROGEN SO