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Assessment of the potential to improve N fixation by cowpea (Vigna unguiculata (L.) Walp.) in Ghanaian soils
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- Journal:
- American Journal of Alternative Agriculture / Volume 16 / Issue 2 / June 2001
- Published online by Cambridge University Press:
- 30 October 2009, pp. 57-65
- Print publication:
- June 2001
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- Article
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