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Ameliorating acid infertile rice soil with organic residue from nitrogen fixing trees por Baggie, I., Zapata, F., Sanginga, N., Danso, S.

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Field validation of intraspecific variation in phosphorus use efficiency and nitrogen fixation by provenances of Gliricidia sepium grown in low P soils por Sanginga, N., Danso, S., Zapata, F., Bowen, G.

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