共 10 条
[2]
BARNES JS, 1975, 229 N CAR AGR EXP ST
[3]
BATRON CJ, 1948, IND ENG CHEM ANAL ED, V20, P1068
[4]
COOKE G. W., 1956, EMPIRE JOUR EXPTL AGRIC, V24, P295
[5]
ENGELSTAD OP, 1972, Y52 TVA NAT FERT DEV
[6]
FASSBENDER HW, 1967, TURRIALBA, V17, P159
[7]
HOWELER RH, 1968, SOIL SCI SOC AM PRO, V32, P79
[8]
JOOS LL, 1950, SOIL SCI SOC AM PRO, V15, P69
[9]
KITTAMS H. A., 1965, AGRON J, V57, P331
[10]
TERMAN GL, 1969, PHOSPHORUS AGR, V54, P1