共 12 条
[3]
BURMOOD DT, 1972, THESIS IOWA STATE U
[4]
CAMERY MP, 1953, IOWA AGRIC EXP STN R, V400
[7]
FEHR WR, 1977, 80 IOW AGR HOM EC EX
[8]
KALTON RR, 1949, IOWA AGRIC EXP STN R, V359
[9]
McALISTER DEAN F., 1958, AGRON JOUR, V50, P674
[10]
SOYBEAN RESPONSE TO STAND REDUCTION AND DEFOLIATION
[J].
AGRONOMY JOURNAL,
1975, 67 (06)
:813-816