PENGGUNAAN TANAH PASCA TAMBANG BATUBARA YANG DIKOMBINASIKAN DENGAN VERMIKOMPOS, ASAM HUMAT, DAN BIOCHAR SEBAGAI MEDIA TANAM UNTUK PEMBIBITAN SENGON LAUT

WATI, SRI RAHMA and Hermawan, Agus (2025) PENGGUNAAN TANAH PASCA TAMBANG BATUBARA YANG DIKOMBINASIKAN DENGAN VERMIKOMPOS, ASAM HUMAT, DAN BIOCHAR SEBAGAI MEDIA TANAM UNTUK PEMBIBITAN SENGON LAUT. Undergraduate thesis, Sriwijaya University.

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Abstract

Post-coal mine soils have low fertility due to heterogeneous conditions, making important nutrients in the soil decrease. One of the efforts to improve post-coal mine soil is by applying vermicompost-biochar and humic acid-biochar. This study aims to determine the effect of vermicompost-biochar and humic acid-biochar with the best dose on the nursery of sengon laut (Paraserianthes falcataria) plants in post-coal mine soil. The research was conducted in Greenhouse, Faculty of Agriculture, Sriwijaya University, from October 2024 to January 2025, using a completely randomized design (CRD) with 7 (seven) treatments. Each treatment was repeated 3 (three) times and each replication consisted of 3 (three) experimental units of sengon laut nursery. The treatments consisted of: K0 = Control, VB1 = Vermicompost-Biochar 10% of soil weight, VB2 = Vermicompost-Biochar 20% of soil weight, VB3 = Vermicompost-Biochar 30% of soil weight, AB1 = Humic Acid-Biochar 10% of soil weight, AB2 = Humic Acid-Biochar 20% of soil weight, AB3 = Humic Acid-Biochar 30% of soil weight. The ratio of vermicompost to biochar is 1:2, while that of humic acid to biochar is 1:20. The results showed that the application of vermicompost-biochar and humic acid-biochar significantly affected the nursery of sengon laut (Paraserianthes falcataria L.) on post-coal mine soil. The best treatment effect on the parameters of pH H2O, pH KCL, C-organic, N-total, P-available, and K-dd was found in the treatment of vermicompost-biochar 30% of soil weight (VB3) and humic acid-biochar 30% of soil weight (AB3). While in the parameters of CEC, plant height, stem diameter, leaf fins, crown dry weight, the vermicompost-biochar treatment of 20% of soil weight (VB2) gave the best effect.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Asam Humat, Biochar, Vermikompos
Subjects:	S Agriculture > S Agriculture (General) > S590-599.9 Soils. Soil science. Including soil surveys, soil chemistry, soil structure, soil-plant relationships S Agriculture > S Agriculture (General) > S622-627 Soil conservation and protection
Divisions:	05-Faculty of Agriculture > 54211-Agricultural Technology (S1)
Depositing User:	Sri Rahma Wati
Date Deposited:	11 Jul 2025 08:09
Last Modified:	11 Jul 2025 08:09
URI:	http://repository.unsri.ac.id/id/eprint/177844

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