Application of Liquid Organic Fertilizer (LOF) From Vegetable Waste and NPK on the Growth and Results of Corn (Zea Mays L.)

Liquid Organic Fertilizer (LOF) and NPK fertilizer are fertilizers that are often used as additional nutrients in the soil to increase the productivity of agricultural products. This experiment aims to test the level of effectiveness and benefits of LOF on corn plants of the Paragon variety, and to provide a comparison between LOF and NPK fertilizer in the analysis of production and farming economics. This experiment was carried out from August to December 2022 at the Experimental Field of the Soil Fertility and Plant Nutrition Chemistry Laboratory, Department of Soil Science and Land Resources, Faculty of Agriculture, University of Padjadjaran Jatinangor, Sumedang Regency, West Java with an altitude of ± 750 meters above sea level . The experiment was carried out using the field trial method with a randomized block design (RBD) consisting of 6 treatments and repeated 4 times, namely 4 treatments with LOF doses, 1 treatment with recommended fertilizer and 1 control treatment. The results of the experiment showed that LOF treatment with NPK fertilizer had an effect on plant height, crown diameter, number of leaves, cob diameter, cob length, fresh and peeled cob weight, crop yield, and farm income. Based on the considerations of this experiment, LOF has met the requirements as a LOF that is suitable for use as a complementary nutrient supplement by combining single NPK fertilizers (Urea, Sp-36, and KCl). 1 treatment with recommended fertilizer and 1 control treatment. The results of the experiment showed that LOF treatment with NPK fertilizer had an effect on plant height, crown diameter, number of leaves, cob diameter, cob length, fresh and peeled cob weight, crop yield, and farm income. Based on the considerations of this experiment, LOF has met the requirements as a LOF that is suitable for use as a complementary nutrient supplement by combining single NPK fertilizers (Urea, Sp-36, and KCl). 1 treatment with recommended fertilizer and 1 control treatment. The results of the experiment showed that LOF treatment with NPK fertilizer had an effect on plant height, crown diameter, number of leaves, cob diameter, cob length, fresh and peeled cob weight, crop yield, and farm income. Based on the considerations of this experiment, LOF has met the requirements as a LOF that is suitable for use as a complementary nutrient supplement by combining single NPK fertilizers (Urea, Sp-36, and KCl).