Fertilizers and soil fertility in Thailand.
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| Format: | Texto biblioteca |
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1952
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| Subjects: | SOIL FERTILITY, FERTILIZERS, SOIL MANAGEMENT, RICE, TESTING, TRAINING, TRADE, FERTILITE DU SOL, ENGRAIS, GESTION DU SOL, RIZ, FERTILIDAD DEL SUELO, ABONOS, MANEJO DEL SUELO, ARROZ, TESTAGE, FORMATION, COMMERCE, ENSAYO, CAPACITACION, COMERCIO, |
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