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All Journal Jurnal Agrotropika
Muhammad Reza Alfarozi
Jurusan Budidaya Tanaman Pangan, Politeknik Negeri Lampung, Lampung
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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PENGARUH APLIKASI GLUCONACETOBACTER DIAZOTROPHICUS UNTUK MENINGKATKAN KUALITAS HASIL DAN EFISIENSI PUPUK N PADA JAGUNG MANIS (Zea mays Saccharata Strurt) Muhammad Reza Alfarozi; Dulbari Dulbari; Deni Sudrajat; Muhammad Yussaq Noor
JURNAL AGROTROPIKA Vol. 25 No. 1 (2026): Jurnal Agrotropika Vol 25 No 1, Mei 2026
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/ja.v25i1.12363

Abstract

Sweet corn (Zea mays var. saccharata Sturt.) is a horticultural commodity with high economic value; however, its productivity is often constrained by low nitrogen fertilization efficiency. Excessive use of inorganic nitrogen fertilizers increases production costs and poses environmental risks. This study aimed to evaluate the effect of Gluconacetobacter diazotrophicus (GDB) application on improving nitrogen fertilization efficiency and harvest quality of sweet corn, as well as to determine the most efficient nitrogen dosage. The research was conducted at PT Pandawa Agri Indonesia from May to August 2025 using a Randomized Block Desig with 10 treatment combinations of nitrogen fertilizer rates and GDB application, replicated three times. The observed parameters included cop length, cop diameter, cop weight with and without husk, and biomass weight. Data were analyzed using analysis of variance followed by Duncan’s Multiple Range Test at a 95% confidence level. The results showed that GDB application significantly improved nitrogen use efficiency. The combination of 75% nitrogen fertilizer with GDB produced harvest quality comparable to full nitrogen fertilization, indicating the potential of GDB to support more efficient and sustainable sweet corn cultivation. Key words: Diazotrophicus, Efficienc, Gluconacetobacter Sweet Corn, Nitrogen, Fertilization
Co-Authors Deni Sudrajat Dulbari Dulbari Muhammad Yussaq Noor