共 186 条
[11]
[Anonymous], 1976, MULTIPLE CROPPING
[12]
Atkins C. A., 1982, Advances in agricultural microbiology, P25
[16]
Baker EFI, 1975, P CROPPING SYSTEMS W, P334
[17]
Beets W. C., 1982, Multiple cropping and tropical farming systems.
[18]
BEETS WC, 1977, NETH J AGR SCI, V25, P95
[19]
Bergersen F. J., 1980, Methods for evaluating biological nitrogen fixation., P65
[20]
Bergh J. P., 1965, NETHERLANDS J AGRICU, V13, P212, DOI DOI 10.18174/NJAS.V13I2.17501