共 15 条
[1]
BARTHOLOMEW WV, 1965, SOIL NITROGEN, P285
[2]
Bremner J.M., 1965, METHODS SOILS ANAL P, P1324, DOI DOI 10.1007/S10661-021-09106-X
[3]
FIEDLER HJ, 1964, LEHRBUCH BODENKUNDE, P236
[4]
GASSER JKR, 1969, 15 MIN AGR FISH FOOD, P71
[5]
HARMSEN G. W., 1955, Advanc. Agron., V7, P299, DOI 10.1016/S0065-2113(08)60341-7
[10]
NOMMIK H, 1968, SKOGS LANTBR AKAD TI, V107, P43