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Selection for improved nitrogen fixation in Glycine max (L.) Merr. and Phaseolus vulgaris L. by Graham, Peter H., Temple, Steven R.

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Field problems of beans in Latin America by Schwartz, Howard F., Gálvez E., Guillermo E., Schoonhoven, Aart van, Howeler, Reinhardt H., Graham, Peter H., Flor Montoya, Carlos A.

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Bean production systems program Centro Internacional de Agricultura Tropical by Graham, Peter H.

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Problemas de campo en los cultivos de fríjol en América Latina by Schwartz, Howard F., Gálvez E., Guillermo E., Schoonhoven, Aart van, Howeler, Reinhardt H., Graham, Peter H., Flor Montoya, Carlos A.

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Biological nitrogen fixation technology for tropical agriculture : Papers presented at workshop held at CIAT, March 9-13, 1981 by Graham, Peter H., Harris, Susan C.

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Nitrogeno : Fuentes quimicas y biologicas en la fertilizacion del frijol by Graham, Peter H.

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Field problems of beans in Latin America by Schwartz, Howard F., Gálvez E., Guillermo E., Schoonhoven, Aart van, Howeler, Reinhardt H., Graham, Peter H., Flor Montoya, Carlos A.

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Research on biological nitroten fixation in the international agricultural research centers by Graham, Peter H.

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Plant factors affecting symbiotic nitrogen fixation in legumes by Graham, Peter H.

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Supervivencia de Rhizobium trifolii en tres portadores by Munévar Martínez, Fernando, Graham, Peter H.

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