Search Results       Your search for [subject]Rice soil productivity -- Bicol River Basin returned 1 record.           A parametric evaluation of soil productivity for rice in the Bicol River basin. by Bragais,Perfecto Jarcia, Jr.; Los Ba?os, Laguna: University of the Philippines, 1980. Subject: Soil Science; Rice soil productivity -- Bicol River Basin; Soils -- Fertility -- Bicol River Basin; Soils -- Parametric evaluation -- Bicol River Basin.          Add to Book Cart Relevance: 45.36%