Geographic distribution and environmental interactions that affect the abundance of Rhizobium leguminosarum biovar phaseoli in Costa Rica.

M G Soto Munoz,Oscar Andres Espinosa Acuna,L Uribe, Alvimar Lima De Castro,J C Rosas,O Cosenza, V M Saban Chin,R G Aguilera Mejia,F Mora Umana,Arauz Cavallini L F Bertsch F,G Rivera,Freddy Mora,J R Navarro,W Badilla, Eds,A Alvarado,Uribe L Thurston H D, M F Smith,G S Abawi,D Kearl,Monica Sanchez, J C Contreras Morales, J A Tafoya R, M Anaya G

mag（1992）

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crop yield,nitrogen fixation,nitrogen fixing bacteria,root nodules,weed control,cover crops,inoculation,sol,tillage,varieties,biological control,acrisol,bacteria,profitability,sampling,biological competition

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