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
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