Main Article Content
The Philippines is an agricultural country with a land area of 30 million hectares, 47% of which is agricultural land. The prime agricultural lands are located around the main urban and high population density areas. Philippine agriculture remains concentrated on a few traditional commodities. Corn is second to rice as the most important crop in the Philippines, with one-third of Filipino farmers, depending on maize as their major source of livelihood. Most Filipino corn farmers prefer to use inorganic fertilizer in increasing the yield of their crops due to readily available nutrients in the materials and ease in application. However, due to the high cost of inorganic fertilizer and at time scarce supply caused by both energy crisis and socio-economic constraints, farmers are hesitant to use it alone. It is therefore necessary to integrate with organic fertilizer to augment the poor fertility of the soil. There is a need to integrate with organic fertilizer to attain better yield and compensate the slow release organic nutrient. Nutrient uptake values were higher in the combined application than the sole application. Besides, it is impossible for Filipino farmers to apply organic inputs alone especially in a large-scale farms.The application of combined organic and inorganic fertilizers is advisable for corn production especially for those new hybrid varieties. New hybrid varieties of corn require a high amount of nutrients. The addition of organic materials in the soil could improve its fertility status and productivity, thus it could improve the yield and quality of the products. This could contribute to the high return on investment of the farmers.Fertilization influence not only the growth and yield but also the physicochemical properties and sensory qualities of corn products. The pH value, total soluble solid, and titratable acidity of corn ears could be increased when it is applied with the organic fertilizers. The same also with the sensory qualities that the taste, aroma, texture, and color of cooked corn ears are found to be more likely acceptable to the consumers. Organically-grown products is the most preferred by the consumers nowadays since most of them are health conscious. It is also observed that organic fertilizers prolong the shelf life of the products when it is stored for 5 days, thus maintain the appearance quality of the corn ears.
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.