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All Journal JURNAL GALUNG TROPIKA Agrotech Journal
Fardyansyah Hasan
Universitas Ichsan Gorontalo
Agriculture, Biological Sciences & Forestry

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Aplikasi Kompos Jerami dan Pupuk Kotoran Walet Terhadap Pertumbuhan dan Produksi Kedelai (Glycine max L. Merill) Fardyansyah Hasan; Muh Jabal Nur
JURNAL GALUNG TROPIKA Vol 10 No 3 (2021)
Publisher : Fapetrik-UMPAR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31850/jgt.v10i3.843

Abstract

This study aims to determine the effect of applying straw compost and swallow manure and their interaction on the growth and production of soybean plants. The study was conducted in the garden of Tinelo Village, Tilango District, Gorontalo Regency, from February to July 2021. The study was arranged using a randomized block design with two factors and three replications. The first factor is the dose of straw compost, consisting of three levels, namely without the application of straw compost, 10 tons ha-1 , and 15 tons ha-1. The second factor was the dose of wallet manure, consisting of three levels, namely without fertilizer application, swallow manure 5 tons.ha-1 and 10 tons.ha-1. The results showed that the application of swallow manure fertilizer at a dose of 10 tons ha-1 was the best treatment by producing the highest number of pods and 100 seeds and increasing soybean seed weight up to 13.56 %.
Effect of Biopesticide Gamak Leaf Extract on Jabon Caterpillar Pest Mortality (Arthroschista hilaralis) in White Jabon Plants (Anthocephalus cadamba Miq) Juniaty Arruan Bulawan; Fardyansyah Hasan; Wawan Irawan Kadir
Agrotech Journal Vol 2, No 1 (2017): Agrotech Journal (ATJ)
Publisher : Universitas Sembilanbelas November Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/atj.v2i1.940

Abstract

White Jabon  (Anthochepalus cadamba Miq).  is one of the tree species that has high prospects for industrial plantations and reforestation (greening) in Indonesia because it has very fast growth, very good adaptability. Disorders of plant disturbance organisms most commonly found in Jabon, Jabon caterpillar (Arthroschista hilaralis) become a major problem that can reduce the quality and quantity of wood. Pest control with chemicals does not provide maximum results so it is necessary to test with biopesticides. The study to examine the effect of gamal leaf extract as a natural insecticide was carried out using a completely randomized design with four treatments, namely the concentration of gamal leaf extract 0% (P0), 50% (P1), 75% (P2), 100% (P3). The results showed that gamal leaf extract as a vegetable insecticide had a positive effect on the mortality of A. hilaralis larvae in Jabon plants. The higher the concentration of gamal leaf extract, the higher the mortality rate in A. hilaralis larvae. This can be seen in the most effective concentration is the concentration of 100% with a mortality rate of 95%. The highest total mortality of A. hilaralis larvae occurred at a concentration of 100% ie 2.1 head / day. The higher the concentration of gamal leaf extract, the higher the speed of death of the larvae
Co-Authors Juniaty Arruan Bulawan Muh Jabal Nur Wawan Irawan Kadir