Figueiredo M V B, Martinez C R, Burity H A. Plant growth-promoting rhizobacteria for improving nodulation and nitrogen fixation in the common bean. World Journal of Microbiology & Biotechnology, 2008, 7(24): 1187-1193.
Bushby H V A. Colonization of rhizaospheres by Brady rhizobium sp. in relation to strain persistence and nodulation of some pasture legumes. Soil Biology and Biochemistry, 1993, 25: 597-605.
Gan Y B, Mark B P, Benjavan R. The effect of N fertilizer strategy on N2 fixation growth and yield of vegetables oybean. Field Crops Research, 1997, 51(3): 221-229.
[23]
Fernando S, James E S, Kenneth G C, et al. Growth and nitrogen fixation in high-yielding soybean: impact of nitrogen fertilization. Agronomy Journal, 2009, 104(4): 958-970.
[24]
Maria J A, Silvina L. Strain selection for improvement of Brady-rhizobium japonicum competiti veness for nodulation of soybean. FEMS Microiology Letters, 2008, 282: 115-123.
Chen W, McCaughey W P, Grant C A. Pasture type and fertilization effects on N2 fixation N budgets and external energy inputs in western Canada. Soil Biology & Biochemistry, 2004, 36: 1205-1212.