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All Journal Biocaster : Jurnal Kajian Biologi
Nusyirwan Nusyirwan
Program Studi Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Negeri Medan, Jalan William Iskandar Ps. V, Deli Serdang, Sumatera Utara 20221, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology

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Pengaruh Pupuk Kandang Ayam terhadap Pertumbuhan dan Produksi Tanaman Kacang Panjang (Vigna cylindrica L.) Adnan Mustaqim; Dina Handayani; Nusyirwan Nusyirwan
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 1 (2026): January
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i1.1032

Abstract

This study aims to analyze the effect of various doses of chicken manure on the growth and yield of long bean plants (Vigna cylindrica L.). The experimental design used was a Completely Randomized Design (CRD) with four treatments and six replications. Treatments consisted of A (control without fertilizer), B (0.5 kg chicken manure), C (1 kg chicken manure), and D (1.5 kg chicken manure). The variables observed included plant height, number of leaves, number of branches, number of pods, pod length, and fresh pod weight at 14, 28, and 42 Days After Planting (DAP). This study was conducted at the Greenhouse, Department of Biology, State University of Medan. The time of this study was from July to September 2025. The results of the Analysis of Variance (ANOVA) showed that the application of chicken manure had a very significant effect (p<0.05) on all parameters of plant growth and yield. Further DMRT testing results demonstrated that treatment D (1.5 kg of chicken manure) consistently produced the highest yields and significantly differed from the other treatments across all observation phases. It can be concluded that applying 1.5 kg of chicken manure per plot is the optimal dose, significantly increasing vegetative growth and yield of long beans.
Pengaruh Pemberian Pupuk Organik Cair (POC) dari Kulit Durian (Durio zibethinus Murr.) terhadap Pertumbuhan Tanaman Sawi Hijau (Brassica juncea L.) Yolanda Sulastri Simanjuntak; Fauziyah Harahap; Nusyirwan Nusyirwan
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 2 (2026): April
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i2.1247

Abstract

This study aims to determine the effect of Liquid Organic Fertilizer (POC) from durian peel (Durio zibethinus Murr.) on the growth of mustard greens (Brassica juncea L.). This study was conducted at the Greenhouse, Medan State University using a non-factorial Completely Randomized Design (CRD) consisting of four treatments with six replications, resulting in 24 experimental units. The parameters observed included plant height, number of leaves, root length, fresh weight, and dry weight of the plant. Based on the results of the study, it was found that the levels of nutrients contained in the liquid organic fertilizer from durian peel waste were 0.93% C-Organic, 0.36% Total Nitrogen, 0.21% P2O5, 0.05% K2O, and 0.02% Total Ca. The application of liquid organic fertilizer from durian peel waste had a significant effect (p <0.05) on all growth and production parameters of mustard greens (Brassica juncea L.). Based on the results of the Duncan's Multiple Range Test (DMRT), the most optimal treatment for mustard greens growth was a concentration of 300 ml of Organic Fertilizer (POC) and 1,000 ml of water. This indicates that the nutrient absorption effectiveness of durian peel POC is sufficient to support maximum vegetative plant growth.
Co-Authors Adnan Mustaqim Dina Handayani Fauziyah Harahap Yolanda Sulastri Simanjuntak