Combination of recommended macro fertilizers and solid organic fertilizers for sweet corn on medium land in Inceptisol soil types

Abstract One of the horticulture products in Indonesia with a large market potential is sweetcorn, which is greatly influenced by the amount of organic matter at the planting site. The study was carried out in the IP2TP BSIP Malang, from March to July 2022. ANOVA was performed for data analysis using a fully randomized design (RBD) with 9 treatments and 3 replicates, and when there were discrepancies in the results, a DMRT analysis was conducted at a 5% level of confidence. This study aimed to ascertain how organic fertilizer affected sweetcorn yield and growth. The findings demonstrated that treatments variable plant height and leaf count had the highest values. The best results for diameter and cob length were obtained in treatment I with a combination of 1,000 kg/ha of organic fertilizer, 750 kg/ha, and 500 kg/ha, which is one recommended dose of NPK plus 500 kg/ha. In comparison to the control treatment, all treatments with the addition of organic fertilizer demonstrated significant improvements in sweet corn production per hectare. The B/C ratio value of 2.86 supports these findings, demonstrating that the maize production per ha is a plant treated with 1 recommended dose of NPK + organic fertilizer at 500 kg/ha.