共 13 条
[2]
ARBUTHNOT KD, 1950, R226 USDA BUR ENT PL
[3]
ARBUTHNOT KD, 1951, R246 USDA BUR ENT PL
[4]
BAKER WA, 1949, USDA983 TECH B
[5]
BEWICK F, 1951, NEBR AGRIC EXP STN A, V64, P75
[6]
CHIANG HC, 1961, 776 MO AGR EXP STN B
[7]
HILL RE, 1973, 255 NEBR AGR EXP STN
[8]
HILL RE, 1967, 225 NEBR AGR EXP STN
[9]
LOMAX JW, 1950, 63 NEB AGR EXP STN A, P77
[10]
SOOTER CA, 1949, 62 NEB AGR EXP STN A, P67