Phosphorus requirements for sustainable agriculture in Asia and Oceania : proceedings

Symposium [on] Phosphorus Requirements for Sustainable Agric

Phosphorus requirements for sustainable agriculture in Asia and Oceania : proceedings - Manila International Rice Research Institute 1990 - 23cm. 477


SOILS - - PHOSPHORUS CONTENT - - CONGRESSES

PHOSPATE FERTILIZERS - - ASIA - - CONGRESS SOILS - - PHOSPHORUS CONTENT - - CONGRES

631.85 S99P

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