Rusdian, D. and Asmarahman, C. and Indriyanto, . (2025) The Effect of Manure and Humic Acid on the Growth of Cork Tree (Thespesia populnea) Seedlings. Quest Journals: Journal of Research in Agriculture and Animal Science, 12 (11). pp. 1-8. ISSN 2321-9459

Text D. Rusdian, C. Asmarahman, & Indriyanto (2025)_The effect of manure and humic acid.....pdf Download (1MB)

Abstract

Beach sand has high salinity and low nutrient content. Mixing cow manure and humic acid into a sand-based growing medium can enhance tree seedling growth. This research aimed to analyze the effect of mixing cow manure and humic acid into a sand-based growing medium on the growth of cork tree (Thespesia populnea) seedlings. The research used a factorial completely randomized design with 2 factors. The first factor was cow manure consisting of 4 levels (0 g, 100 g, 120 g, 150 g). The second factor was humic acid consisting of 3 levels (0 ml, 5 ml, 15 ml). The results showed that cow manure dosage significantly affected to the seedling height, seedling diameter, root length, root dry weight, shoot dry weight, and seedling quality index. A dose of 100 g of manure had the best effect on the growth of cork tree seedlings compared to other doses of manure. The application of humic acid significantly affected to the root length with the best dose being 15 ml. An interaction occurred between the doses of manure and humic acid and affected to the root length. The best root growth (34.9 cm) occurred in the combination treatment of 100 g of cow manure and 15 ml of humic acid.

Item Type:	Article
Subjects:	S Agriculture > SD Forestry
Divisions:	Fakultas Pertanian (FP) > Prodi Kehutanan
Depositing User:	INDRIYANTO
Date Deposited:	13 Nov 2025 09:42
Last Modified:	13 Nov 2025 09:42
URI:	http://repository.lppm.unila.ac.id/id/eprint/54748

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