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All Journal Jurnal Hutan Tropika Enrichment: Journal of Multidisciplinary Research and Development
Gaman, Sampang
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Agriculture, Biological Sciences & Forestry Humanities Economics, Econometrics & Finance Engineering Health Professions Social Sciences

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Potensi Pertumbuhan Tanaman Jelutung Rawa di Kecamatan Jabiren Raya Kabupaten Pulang Pisau : Potential Growth of Swamp Jelutung Plants in Jabiren Raya District, Pulang Pisau Regency Gaman, Sampang; Rotinsulu, Johanna Maria; Sukarna, Raden Mas; Penyang, Penyang; Nuwa, Nuwa
HUTAN TROPIKA Vol 19 No 1 (2024): Volume 19 Nomor 1 Tahun 2024
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v19i1.14448

Abstract

The cultivation of swamp jelutong plants on peat swamp land has been widely practiced by communities in Central Kalimantan Province. However, jelutong cultivation efforts are prone to failure due to various factors such as land fires and other factors. The Indonesian government through the Ministry of Forestry in 2003-2005 carried out the Forest and Land Rehabilitation Movement, which involved planting unproductive land in state forest areas and community forests with local species such as jelutong, pulai, balangeran and other species. After almost 20 years of planting Jelutung, information related to the growth and sap potential of Jelutung swamp is not yet available. The purpose of the study was to analyze the potential growth of diameter and height of jelutong plants. This research was conducted for 3 months from October-December 2023. The location of the research was specifically carried out in Jabiren Raya Sub-district (Jelutung plantation of Mr. Margo) and (Jelutung plantation in Jabiren) Pulang Pisau District. The method used to study the dynamics of jelutong plant growth and sap potential was purposive sampling, by selecting and determining jelutong plants based on the age class of jelutong plants with a sampling intensity of ± 5% of the area, the measurement results were analyzed through correlation regression tests in the form of tables and graphs. The results of research conducted in 2 locations show the results of measurements of diameter and height growth of jelutong plants.
Kajian Pertumbuhan Diameter dan Tinggi Pohon Jelutung (Dyera polyphylla (Miq.) di Kota Palangka Raya: Study on Diameter and Height Growth of Jelutung in Palangkaraya Central Kalimantan Gaman, Sampang; Sukarna, Raden Mas; Rotinsulu, Johanna Maria; Penyang, Penyang; Nuwa, Nuwa
HUTAN TROPIKA Vol 20 No 1 (2025): Volume 20 Nomor 1 Tahun 2025
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v20i1.19670

Abstract

Peat swamp forests are dominated by local tree types that have economic value, such as ramin, merani, nyatoh and jelutung. Jelutung trees provide benefits in the form of wood and sap, in addition, swamp jelutung is an ideal type for the rehabilitation of peat swamp forests that are resistant to flooded peatlands. Based on the above problems, it is necessary to conduct a study to analyze the relationship between the growth of the diameter and height of the jelutung plant. This research was carried out in 2023 in community jelutung gardens in Palangka Raya City. The method used to study the growth dynamics of jelutung trees is carried out by purposive sampling, namely by selecting and determining jelutung trees based on the age class of jelutung trees with a sampling intensity of ±5% of the area or number of trees. The results of measuring the diameter and height of the tree were analyzed through a correlation regression test displayed in the form of tables and graphs. The results of the study at the location of the jelutung plantation in Bukit Tunggal Village showed that the relationship between the diameter and height of the tree in the farmer's garden 1 had a coefficient interval value of 0.9476 and the relationship between the diameter and height of the tree in the farmer's garden 2 showed a coefficient interval value of 0.9563. while the location of the jelutung plantation in Kalampangan Village showed the relationship between the diameter and height of the jelutung tree in the farmer's garden 1 with a coefficient interval value of 0, 9151, the relationship between the diameter and height of the tree in the farmer's garden 2 was 0.8277 and the relationship between the diameter and height of the tree in the farmer's garden 3, farmer 4 and farmer 5 was 0.79551. This value shows that there is a very strong and positive relationship between the two variables.
Response of Balangeran (Shorea Balangeran) Plant Growth to the Application of Kiambang (Salvinia molesta) Compost on Peatland Rahmawati, Reni; Gaman, Sampang; K.F, Eritha; Rosdiana, Rosdiana; A.S., Yosefin; Darung, Untung
Enrichment: Journal of Multidisciplinary Research and Development Vol. 3 No. 9 (2025): Enrichment: Journal of Multidisciplinary Research and Development
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/enrichment.v3i9.565

Abstract

This study aimed to analyze the effect of Salvinia molesta compost on the growth of Shorea balangeran planted in peatland. The experiment was conducted on peatland in Manen kaleka Village, Pulang Pisau Regency, from July to December 2024. A Randomized Block Design (RBD) was applied with three treatments: P0 (no compost), P1 (200 g kiambang compost), and P2 (400 g kiambang compost), each replicated three times. Observed parameters included plant height increment, stem diameter, number of leaves, and survival rate. Data were analyzed using ANOVA at a 5% significance level, followed by Least Significant Difference (LSD) test for mean comparison. Results showed that Salvinia molesta compost significantly affected Shorea balangeran growth in the field. The P1 treatment (200 g) produced the highest growth with mean height increment of 9.83 ± 1.15 cm and diameter increment of 1.02 ± 0.09 mm compared to the control. The improvement was attributed to increased nutrient availability (N, P, K) and better soil structure due to organic matter addition from decomposed kiambang. Here, Salvinia molesta compost is a promising eco-friendly organic fertilizer for peatland restoration and reforestation efforts.
Co-Authors A.S., Yosefin Fauzi, Fouad Johanna Maria Rotinsulu K.F, Eritha Nuwa, Nuwa Penyang, Penyang Raden Mas Sukarna, Raden Mas Rahmawati, Reni Rosdiana Rosdiana Sudomo, MFA Untung Darung