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All Journal International Integrated Agricultural Journal (IIAJ)
Iqbal Erdiansyah
Food Production Technology, Department of Agricultural Technology, State Polytechnic of Jember, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Environmental Science Immunology & microbiology

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The Effect of Gamal Leaf Fertilizer Concentration on the Growth and Production of Glutenated Corn Agustin Rindha Yonita; Ilham Muhklisin; Andarula Galushasti; Iqbal Erdiansyah
International Integrated Agricultural Journal (IIAJ) Vol. 1 No. 2 (2025): November 2025
Publisher : KHD Production

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53713/iiaj.v1i2.427

Abstract

Excessive use of chemical fertilizers leads to soil degradation which gradually reduces corn productivity. Therefore, using organic fertilizers such as liquid organic fertilizers made from Gamal aka Gliricidia leaves and their proper application needs to be encouraged. This study aims to determine the growth and yield of waxy corn plants in response to the administration of liquid gliricidia leaf fertilizer with various concentrations and time intervals. This research was conducted in Politeknik Negeri Jember, East Java from July 2024 to October 2024. This research was conducted on a Non-Factorial Randomized Block Design where the treatment level was a combination of the liquid fertilizer concentration and application time interval consisting of control, 50 ml / l + 1 week, 50 ml / l + 2 weeks, 75 ml / l + 1 week, 75 ml / l + 2 weeks, 100 ml / l + 1 week, and 100 ml / l+ 2 weeks. The results showed that the treatment of 75 ml/l concentration + 2-week interval significantly showed the best results in stem diameter, cob length, cob diameter, and cob weight. It can be concluded that the application of liquid organic fertilizer made from gliricidia leaves can be an alternative to minimize the use of chemical fertilizers in waxy corn plants.
Study of Plant Pest Organisms in Maize-Edamame Intercropping Siti Afiyana Damayanti; Mahindra Dewi Nur Aisyah; Iqbal Erdiansyah; Christa Dyah Utami
International Integrated Agricultural Journal (IIAJ) Vol. 1 No. 2 (2025): November 2025
Publisher : KHD Production

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53713/iiaj.v1i2.428

Abstract

The problem of maize-edamame cultivation is inseparable from the attack of plant pest organisms. Another alternative control is needed, one of which is the intercropping. This study aims to observe pests that attack glutinous maize and edamame plants. This research was conducted from June to September 2024 on farmland on Kebonsari, Sumbersari District, Jember Regency. The experimental design used was by comparing polyculture and monoculture planting patterns consisting of 4 treatments. The results showed the presence of pests and diseases, namely aphids (Aphis glycines), green looper (Chrysodeixis chalcites), asian maize borer (Cercospora sojina), stem borer (Ostrinia fumacalis), southern rust (Puccinia sorghi) and or maize smut (Ustilago maydis).
Co-Authors Agustin Rindha Yonita Andarula Galushasti Christa Dyah Utami Ilham Muhklisin Mahindra Dewi Nur Aisyah Siti Afiyana Damayanti