Fertilizer response of rice under varying environment and management practices [microform]. - Pisithpun, Saowanee 1939- (Quezon City Photoduplication Service, University of the Philippines Library, 1977)
Microfilmed with 20 other titles.
Thesis (M.S.)--University of the Philippines, Los Banos.
Keywords: Rice -- Fertilizers & manures; Nitrogen fertilizers