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Analysis Of Biomass Of Mucuna Bracteata DC Due To The Provision Of Coffee Skin Waste As An Alternative Fertilizer Tarigan, Andry Admaja; Perangin-angin, Hagai Jorenta; Afrianti, Suratni; Sulastri, Yustina Sri; Sihaloho, Martha Adiwaty; Pratomo, Bayu
Agroprimatech Vol. 9 No. 1 (2025): Agroprimatech
Publisher : Prodi Agroteknologi Fakultas Agro Teknologi Universitas Prima Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34012/agroprimatech.v9i1.6504

Abstract

Biomass Analysis of Mucuna bracteata DC Due to the Application of Coffee Husk Waste as an Organic Nutrient Source. Mucuna bracteata DC is a cover crop that plays a crucial role in soil conservation and soil fertility improvement. This study aims to analyze the effect of liquid organic fertilizer (LOF) derived from coffee husk waste on the biomass growth of Mucuna bracteata DC, particularly in terms of fresh shoot weight, fresh root weight, dry shoot weight, and dry root weight. The research was conducted at Jalan Kuali No. 50, Medan Petisah District. The experiment was designed using a Completely Randomized Block Design (CRBD) with a single-factor treatment consisting of seven LOF dosage levels: K0 (no treatment), K1 (5 mL/polybag), K2 (10 mL/polybag), K3 (15 mL/polybag), K4 (20 mL/polybag), K5 (25 mL/polybag), and K6 (30 mL/polybag), with four replications, totaling 28 experimental plots. The results showed that the application of coffee husk LOF significantly affected the biomass growth of Mucuna bracteata DC. The highest fresh shoot weight (9.51 g) and dry shoot weight (2.14 g) were recorded in treatment K6 (30 mL/polybag), whereas the highest fresh root weight (2.29 g) and dry root weight (0.32 g) were observed in treatment K5 (25 mL/polybag). Higher LOF doses generally increase plant biomass up to an optimal threshold, beyond which nutrient absorption efficiency by roots declines. Overall, the optimal LOF dosage for maximizing biomass growth in Mucuna bracteata DC ranges between 25–30 mL/polybag. The use of coffee husk waste as an organic nutrient source presents a sustainable alternative for improving plant productivity while reducing dependency on synthetic fertilizers.
Sheep Urine Liquid Organic Fertilizer Improved Oil Palm Seedling Growth Sitinjak, Rama Riana; Pratomo, Bayu
PLANTA TROPIKA Vol. 14 No. 2 (2026)
Publisher : Department of Agrotechnology, Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.v14i2.27948

Abstract

Sheep urine-based liquid organic fertilizer (LOF) offers a low-cost alternative to synthetic fertilizers in oil palm nurseries, yet its application remains limited. Liquid organic fertilizer derived from sheep urine is very effective in increasing seedling growth in the pre-nursery. This study aims to determine the implementation of Liquid organic fertilizer (LOF) sheep urine on the growth of oil palm seedlings in the pre-nursery. A randomized block design was used with four LOF concentrations: N0 = 0 mL/L, N1 = 50 mL/L, N2 = 150 mL/L, and N3 = 300 mL/L. Data were analyzed using analysis of variance, followed by Tukey’s test at the 5% significance level. The results showed that giving LOF from sheep urine could significantly increase the growth of oil palm seedlings, which included seedlings height, stem diameter, number of leaves, fresh weight and canopy dry weight but not for fresh weight and root dry weight of seedlings pre-nursery. The best growth of oil palm seedlings was observed with the application of a liquid organic fertilizer made from sheep urine at a concentration of 300 ml/L at 12 weeks after planting.
Co-Authors afrianti, Suratni Angga Oktavianus Aryska, Dini Christina, Chyntia Davidson Silalahi, Calvin Elisa Julianti Ginting, Chelvin Van Roy Gunawan, Juan Felix Hagai Jorenta Perangin-angin Irni, Julaili Kurniawan, Zahir Lumban Tobing, Herdianta Martha Adiwaty Sihaloho Nur Ariyani Agustina Oktavianus, Angga Perangin-angin, Hagai Jorenta Pinem, Laura Juita R Sitinjak, Rama R. Sitinjak, Rama Rahayuwati, Sat Rama Riana Sitinjak Ridwanti Batubara Suryadi Risky Sirait Tanjung, Agung Rafiul Naldi Tarigan, Andry Admaja Tarigan, Andry Atmaja Yustina Sri Sulastri Zuliyanti, Ameilia