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All Journal Jurnal Agronomi Tanaman Tropika (JUATIKA) Botani: Publikasi Ilmu Tanaman dan Agribisnis Mikroba: Jurnal Ilmu Tanaman, Sains dan Teknologi Pertanian
Erik Mulyana
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Agriculture, Biological Sciences & Forestry

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Growth and Production of Sweet Corn (Zea mays var. Saccharata Strut.) at Various Doses of NPK 16-16-16 Fertilizer Astryani Rosyad; Erik Mulyana; Hafith Furqoni; Suwarto Suwarto; Adrian Khairullah; Annas Sofian
Mikroba : Jurnal Ilmu Tanaman, Sains Dan Teknologi Pertanian Vol. 3 No. 1 (2026): April : Mikroba : Jurnal Ilmu Tanaman, Sains Dan Teknologi Pertanian
Publisher : Asosiasi Riset Ilmu Tanaman Dan Hewani Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/mikroba.v3i1.551

Abstract

Sweet corn is a high-value horticultural crop with steadily increasing demand for both fresh consumption and use as a raw material in the food industry. This study aims to evaluate the effectiveness of NPK 16-16-16 fertilizer on the growth and yield of sweet corn. The research was conducted at Sindangbarang Experimental Field, Faculty of Agriculture, IPB University from July to October 2025. This experiment used a Randomized Complete Block Design (RCBD) with a single factor, namely the dose of fertilizer application. Treatments were using fertilizer dosages of 0, 50, 0,75, 1,00, and 1,50 NPK 16-16-16, with a control treatment for comparison. During the vegetative phase, sweet corn exhibited similar growth responses across all fertilization levels relative to the control. However, all fertilizer doses significantly improved stover weight, cob weight with and without husk, cob length, cob diameter, yield per plot, and overall productivity compared to the control. The application of NPK 16-16-16 fertilizer at the recommended (1.0) rate achieved the highest relative agronomic effectiveness (103.11%), corresponding to a 1.03-fold yield increase over the control and outperforming the comparison treatment. Application of NPK 16-16-16 at the 1.0 recommended dose is suggested as the most efficient fertilization strategy for sweet corn production, as it maximizes yield and productivity without unnecessary increases in fertilizer input.     
The Effectiveness of Mn EDTA (12%) Micronutrient Fertilizer on Agronomic Performance of Sweet Corn (Zea mays saccharata Sturt.) Erik Mulyana
Mikroba : Jurnal Ilmu Tanaman, Sains Dan Teknologi Pertanian Vol. 3 No. 1 (2026): April : Mikroba : Jurnal Ilmu Tanaman, Sains Dan Teknologi Pertanian
Publisher : Asosiasi Riset Ilmu Tanaman Dan Hewani Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/mikroba.v3i1.585

Abstract

Sweet corn (Zea mays saccharata Sturt.) is an increasingly popular horticultural commodity in Indonesia, attracting both farmers and consumer. This study aims to evaluate the effectiveness of single‑micronutrient fertilizer Mn‑EDTA (12%) in enhancing the growth and yield of sweet corn (Zea mays saccharata Sturt.). The treatments consisted of control, standard NPK, 0.25 NPK, 0.50 NPK, 0.75 NPK, and 1.00 NPK. The experimental findings demonstrated that the application of single‑micronutrient Mn‑EDTA (12%) fertilizer had a highly significant effect on vegetative growth and yield components of sweet corn, with statistically higher values compared with the control treatment. In general, fertilizer dosages equivalent to 0.25–1.00 NPK produced greater plant height, stem diameter, leaf number, ear length, ear diameter, biomass weight, ear weight with husk, ear weight without husk, plot yield, and productivity than the control. The RAE calculation indicated that the fertilizer was effective when applied at dosages equivalent to 0.75 and 1.00 NPK. The highest effectiveness was observed at the 1.00 NPK dosage, with an RAE value of 101%. Notably, the application of Mn‑EDTA (12%) fertilizer at the 1.00 NPK dosage provided significant field effectiveness, as reflected by the RAE value of 101%. This result implies that the use of single‑micronutrient Mn‑EDTA (12%) fertilizer at the 1.00 NPK dosage increased yield by 1.01 times compared with the yield improvement obtained from the reference fertilizer relative to the control treatment.
Improving Seed Quality of Four Genotypes of Sweet Corn (Zea mays saccharata) Based on Harvest Time and Initial Water Content Astryani Rosyad; Arya Widura Ritonga; Erik Mulyana; Punjung Medaraji Suwarno; Mertya Anugrah
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 7 No. 2 (2025): Vol. 7 No. 2 Mei (2025): Jurnal Agronomi Tanaman Tropika (JUATIKA)
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v7i2.4335

Abstract

Quality seeds are crucial for successful sweet corn production. Various factors influence seed quality, including harvest time and initial water content. Therefore, understanding the interaction between harvest time and initial water content is essential for optimizing the quality of sweet corn seeds. This study aims to determine the optimal harvest time and initial water content for assessing the seed quality of four sweet corn genotypes: T13.1.8, SB13.1.3, T8.3.6, and T8.3.2. The experiment employed a factorial Randomized Complete Block Design (RCBD) with two factors. The first factor, harvest time, consisted of five levels (73, 76, 79, 82, and 85 days after planting [DAP]). In contrast, the second factor was the initial water content for seed testing, categorized as harvest water content and 10-12% moisture content. Each treatment was replicated three times, resulting in a total of 30 experimental units. The findings indicated that the sweet corn genotypes T13.1.8 and SB13.1, which were harvested at 76 to 82 hours after sowing (DAP) and had an initial water content of 10 to 12%, represented the optimal treatment combination. These genotypes exhibited germination rate and vigor index variables ranging from 92.7 - 100% and 70.67 - 96.67%. Sweet corn genotypes T8.3.6 and T8.3.2 can be harvested between 79 - 85 DAP with an initial water content of 10-12% to obtain seeds with a germination rate ranging from 86.00 - 98.67% and a vigor index of 58.00 - 86.67%. The study results can be used as a recommendation for seed producers to apply the harvest time and water content according to the genotype used, to ensure that the seeds produced have high viability and vigor.
Ethylene Oxidizing Wrappers for Postharvest Storage of Raja Bulu Banana: Non-Destructive Assessment of Shelf Life and Quality Erik Mulyana
Botani : Publikasi Ilmu Tanaman dan Agribisnis Vol. 3 No. 2 (2026): Mei : Botani : Publikasi Ilmu Tanaman dan Agribisnis
Publisher : Asosiasi Riset Ilmu Tanaman Dan Hewani Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/botani.v3i2.588

Abstract

This study aimed to test the effectiveness of gauze and nylon fiber wraps containing ethylene oxidizing compounds, namely clay mixed with potassium permanganate (KMnO₄), in extending the shelf life of Raja Bulu bananas (Musa sp., AAB Group). The experiment was conducted at the Postharvest Laboratory, Department of Agronomy and Horticulture, Faculty of Agriculture, Bogor Agricultural University, from February to March. A randomized complete design (RCD) with seven treatments was applied: P1 as control without wrapping or oxidizing materials; P2, P3, and P4 using gauze with 30, 60, and 90 g oxidizing compounds; and P5, P6, and P7 using nylon fibers with 30, 60, and 90 g oxidizing compounds. Each compound consisted of clay and KMnO₄ in predetermined proportions. The results showed that the longest shelf life, reaching 14 days, was obtained from P5 treatment, where the bananas remained edible. Similar results were observed in P3 and P4 gauze treatments, while bananas in P1 and P7 spoiled after nine days. Wrapping with ethylene oxidizing compounds reduced fruit weight loss during 3–12 days of storage, with P5 showing the lowest loss after 12 days. However, the treatments did not affect the skin color scale index, fruit flesh-to-skin ratio, edible portion, or skin firmness. Overall, ethylene oxidizing wraps extended banana shelf life by up to five days compared with the control. Nylon fiber wrapping with 30 g oxidizing compound is recommended for Raja Bulu banana storage. This treatment offers a practical and low-cost postharvest technology for maintaining banana quality during short-term distribution processes.
Co-Authors Adrian Khairullah Annas Sofian Astryani Rosyad Astryani Rosyad Hafith Furqoni Mertya Anugrah Punjung Medaraji Suwarno Ritonga, Arya Widura Suwarto Suwarto