Effects of nitrogen and phosphorus ratios on the productivity of brackishwater fishponds
Auteur principal: | |
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Format: | Thèse |
Publié: |
Iloilo City
University of the Philippines in the Visayas
1981.
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Sujets: |
Auteur principal: | |
---|---|
Format: | Thèse |
Publié: |
Iloilo City
University of the Philippines in the Visayas
1981.
|
Sujets: |