Improving soil fertility in Africa: papers presented at the third Conference on Soil fertility and fertilizer use in Africa, Addis Abeba, Ethiopia, 3-7 Nov 1970
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| Format: | Texto biblioteca |
| Language: | eng |
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Rome (Italy) FAO
1971
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| Subjects: | AGL SFFU, FERTILIZERS, SOIL FERTILITY, SOIL SCIENCES, AGRONOMY, ENGRAIS, FERTILITE DU SOL, ABONOS, FERTILIDAD DEL SUELO, SCIENCES DU SOL, AGRONOMIE, CIENCIA DEL SUELO, AGRONOMIA, |
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