Search Results       Your search for [subject]Cotton -- Philippines -- Fertilizers and manures returned 1 record.           Nitrogen-potassium ratios in relation to nutrient content and yield of cotton, 1977. by Aragon, Miguel L.; 1977. Subject: Cotton -- Philippines -- Fertilizers and manures; Nitrogen fertilizers; Potassium fertilizers.          Add to Book Cart Relevance: 25.58%