共 8 条
[2]
Bremner J.M., 1965, METHODS SOIL ANAL PA, P1149
[4]
Hoagland DR, 1938, CALIF AGR EXP STN B, V347, P36
[5]
SNEDECOR GW, 1956, STATISTICAL METHODS, P413
[6]
THOMAS JR, 1964, AM SOC HORTIC SCI, V85, P419
[7]
1945, OFFICIAL METHODS ANA, P140
[8]
[No title captured]