Optimizing the Dose of Cow Manure and Pruning on Sweet Corn (Zea mays saccharata Sturt.) Growth and Production
Abstract
Sweet corn (Zea mays saccharata Sturt.) has high economic value; however, its productivity in Indonesia remains
low, leading to partial reliance on imports to meet demand. This study aimed to determine the optimal dose of
cow manure and pruning method to enhance the growth and yield of sweet corn. The research was conducted in
Balongpanggang, Gresik, East Java, from October 2024 to January 2025, using a factorial Completely Randomized
Design (CRD) with three replications. The first factor was the dose of cow manure (10, 20, and 30 tons/ha), and
the second factor was pruning type (no pruning, pruning three leaves below the cob, pruning male flowers, and
pruning both leaves and male flowers). Data were analyzed using ANOVA followed by a 5% BNJ test. The results
indicated that the combination of 30 tons/ha of manure with pruning three leaves below the cob and male flowers
produced the best outcomes in vegetative growth parameters, including plant height, number of leaves, stem
diameter, cob weight, cob diameter, and sweetness content. These findings confirm that integrating organic
fertilization with targeted pruning is an effective strategy for sustainably increasing sweet corn productivity.
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Copyright (c) 2026 Muhammad Nurdin Hidayat, Sutinisutini, Ramdhan Hidayat
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