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Legume inoculants : selection and characterization of strains : production, use and management /

Buenos Aires : Kingraf, 1996 987-96116-08

Biological nitrogen fixation : ecology, technology and physiology.

By Alexander, Martin.
New York : Plenum Press, 1984 0-306-41632-8

Biological nitrogen fixation in farming systems of the tropics /

Chichester, NY : Wiley, 1977 , "Based on papers presented at a Symposium held at the International Institute of Tropical Agriculture, Ibadan, Nigeria, in October 1975. 0-471-99499-5

Alfalfa : fijación de nitrógeno y decadencia de los alfalfares.

Buenos Aires : Bolsa de Cereales, 1979

The biology of nitrogen fixation.

By Quispel, A..
Amsterdam ; | Oxford : | New York : North-Holland ; | American Elsevier, 1974 0-7204-7135-40-444-10630-8