共 10 条
[1]
FRAWLEY JP, 1949, J ASSOC OFF AGR CHEM, V32, P758
[2]
GILBERT HI, 1950, USDA BEPQ E795
[3]
HARRIS H. J., 1950, AGRIC CHEM, V5, P51
[4]
LIVERMORE J. R., 1934, JOUR AMER SOC AGRON, V26, P665
[5]
MARCH RB, 1949, CALIF DEP AGR B, V38, P1
[6]
MOSNA E., 1949, Rivista di Parassitologia, V10, P31
[9]
SCHWARDT HH, 1946, 20TH N Y STAT ASS MI, P161