Sources and rates od fertilizer phosphorus for flooded rice in Buenavista clay [microform]

Sources and rates od fertilizer phosphorus for flooded rice in Buenavista clay [microform]

Xehetasun bibliografikoak
Egile nagusia: Duangputra, Piya 1939-
Formatua: Visual Material
Argitaratua: Quezon City Photoduplication Service. University of the Philippines Library 1977.
Gaiak:
Phosphorus as fertilizers.
Soils > Phosphorus content.
Rice > Fertilizers and manures.