Fertilizer Calculator

The DA RFO 12 Fertilizer Calculator is a mobile application developed to determine the amount of fertilizer needed to satisfy the recommended rate from a given soil test result and the crop to be planted in the Philippines. Based on the selected combination of fertilizer grades, various fertilizer recommendations are generated but only the best combination is suggested to be adopted as other options may have either excess or insufficiency in nutrient. Fertilizer application rates are based on the research from the Department of Soil Science, University of the Philippines Los Baños, Laguna, in cooperation with the National Food and Agricultural Council.