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Bambang Gonggo Murcitro
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Department of Soil Science, Faculty of Agriculture, University of Bengkulu, WR Supratman St. Kandang Limun, Bengkulu 38371 INDONESIA
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TERRA : Journal of Land Restoration
Published by Universitas Bengkulu
ISSN : -     EISSN : 26210207     DOI : https://doi.org/10.31186/
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
TERRA is a scientific journal that publishes research results related to resource issues and agricultural productivity widely, soil science, plant science, and forest science for land restoration.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Tanah
Articles 6 Documents
 1 
Search results for , issue "Vol. 8 No. 2 (2025)" : 6 Documents clear
Effects of Vermicompost on Soil Physical Properties, Organic Carbon Content, and the Growth, and Yield of Carrot (Daucus carota L.) on Inceptisols Amertha, Raisha Amanda April; Widiyono, Heru; Utami, Kartika; Barchia, M. Faiz
TERRA : Journal of Land Restoration Vol. 8 No. 2 (2025)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/terra.8.2.57-64

Abstract

Carrot (Daucus carota L.) is a root vegetable cultivated year-round, particularly in subtropical and highland regions, serving as a vital source of vitamins and minerals. In Indonesia, favorable environmental conditions—such as temperature, rainfall, humidity, and soil type—support carrot cultivation. Among the dominant soil types, Inceptisols are widely distributed but often constrained by low organic carbon content and suboptimal physical properties. However, studies on the long-term effects of organic amendments, particularly vermicompost, on soil quality and crop performance in highland Inceptisols remain limited. This study evaluated the effects of long-term vermicompost application on selected soil physical properties, organic carbon content, and the growth and yield of carrot plants cultivated on Inceptisols. The experiment was conducted from November 2023 to February 2024 in Air Duku Village, Selupu Rejang Subdistrict, Rejang Lebong District, at an altitude of 1,054 meters above sea level. The site had received vermicompost applications for nine consecutive years. A randomized complete block design (RCBD) was employed, with five vermicompost doses (5, 10, 15, 20, and 25 tons ha⁻¹), each replicated three times, resulting in 15 experimental plots. Soil and plant analyses were performed at the Soil Science Laboratory, Faculty of Agriculture,University of Bengkulu.Application of 15 tons ha⁻¹ vermicompost significantly improved pF1 (37.89%), soil organic carbon content (4.15%), and root weight per plant (198.68 g). The 20 tons ha⁻¹ dose significantly increased soil permeability (6.17 cm h⁻¹) and total plant weight (36.17 kg plot⁻¹), while 25 tons ha⁻¹ enhanced water retention at pF2 (43.95%) and pF3 (39.63%). These findings demonstrate the potential of vermicompost to improve soil quality and carrot productivity in highland Inceptisols and support its integration into sustainable vegetable farming systems. Full text pdf
Trait Evaluation of 9 Bird’s Eye Chili (Capsicum frutescens L.) Hybrids on Coastal Area Tri Mauli, Emilda; Rustikawati; Catur Herison; Marulak Simarmata; Merakati Handajaningsih
TERRA : Journal of Land Restoration Vol. 8 No. 2 (2025)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/terra.8.2.71-79

Abstract

Soil in coastal areas are less suitable for agriculture due to various constraints causing low soil fertility. Until now, there has been no available bird’s eye chili variety tolerant to coastal stress conditions. This research aims to characterize nine bird’s eye chili hybrids grown on coastal land. The research was conducted on coastal land in Kuala Alam Nusa Indah, Ratu Agung District, Bengkulu, from August 2024 to February 2025. The experiment was arranged in a Randomized Complete Block Design (RCBD) with three replications. The traits observed consisted of both quantitative and qualitative variables related to bird’s eye chili growth and yield. Quantitative data were analyzed using ANOVA at a 5% and 1% significance level, followed by a Scott-Knott test, α = 5%, to assess data grouping. Qualitative data were descriptively analyzed by comparing with reference to the descriptor for capsicum. The results showed that the tested hybrids differed in all traits. The results showed that the hybrid H3 (A11 × A7) showed the highest production potential with long fruit and large yields despite slower days to flower and a small stem diameter, while hybrid H8 (A39 × A29) excelled more equally in most traits, including fast days to flower, highest plant height and dichotomous height, large stem diameter, large number of branches, high leaf greenness, long fruit with large diameter, and a high fruit weight. Overall, H3 and H8 bird’s eye chili hybrids are potential to be adapted varieties to coastal areas with improvements in several characteristics.  Full text pdf
Effects of Azolla pinnata Compost and Carbonate Lime (CaCO₃) on Soil Chemical Properties, Nitrogen Uptake, and Yield Components of Sweet Corn Grown in Ultisols Yunarto, Febri; Sulistyo, Bambang; Hasanudin, Hasanudin; Listyowati, Esi Asyani
TERRA : Journal of Land Restoration Vol. 8 No. 2 (2025)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/terra.8.2.65-70

Abstract

Ultisols, covering approximately 705,151 hectares in Bengkulu, represent a marginal soil type with considerable agricultural potential. However, they are limited by low nutrient availability, low pH, low organic carbon, and high concentrations of exchangeable aluminum (Al) and iron (Fe). These constraints significantly affect the growth and productivity of crops such as sweet corn, which is sensitive to acidic conditions and nutrient deficiency. Soil fertility improvement through organic matter application and liming is a promising approach. Azolla, an aquatic fern with high nitrogen content due to its symbiosis with Anabaena azollae, was used in composted form. This study aimed to determine the optimum application rates of Azolla compost and carbonate lime (CaCO₃) for improving nitrogen up take, growth, and yield of sweet corn in Ultisols. The treatments consisted of four Azolla compost levels (0, 5, 10, and 15 tons ha-1) and three lime rates equivalent to neutralizing 0, 1, and 2 units of exchangeable Al. A factorial experiment was arranged in a completely randomized design with three replications. Data were analyzed using analysis of variance (ANOVA), followed by orthogonal polynomial testing. Azolla compost significantly improved soil pH, organic carbon content, stem diameter, plant height, ear weight, biomass (fresh and dry), and nitrogen uptake. Lime applica tion significantly increased soil pH, stem diameter, and plant height. No significant interaction occurred between the two factors. Although positive responses were observed, the yield remained below the potential of the Bonanza F1 variety, likely due to high rainfall and suboptimal treatment levels. These findings support the integration of Azolla compost and lime into soil fertility management practices for sustainable sweet corn production on acidic tropical soils. Full text pdf
Outcrop-Scale Investigation of Geological and Soil Physical Controls on Slope Stability in the Semilir Formation Lovita, Vinni; Aminulloh, Dzikru; Mulyanto, Djoko; Ayu Lidya Permata Putri, Devanda; Kresna Pambayu, Aldio
TERRA : Journal of Land Restoration Vol. 8 No. 2 (2025)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/terra.8.2.87-95

Abstract

Landslides are a major hazard in Indonesia’s volcanic terrains, where highly weathered pyroclastic rocks and intense rainfall frequently trigger slope failures. This study aims to identify geological, geomorphological, and soil physical factors controlling slope stability within the Semilir Formation of Gunungkidul, Yogyakarta. Field observations and laboratory analyses were conducted to compare outcrops affected by translational landslides with adjacent stable slopes. Key parameters include bedding orientation, soil bulk density, plasticity index, and water retention capacity. The results indicate that dip-slope bedding orientations strongly predispose slopes to translational failure, whereas counter-dip structures enhance stability. Landslide-prone slopes exhibit higher bulk density, lower plasticity, and reduced water-holding capacity, which accelerate saturation and decrease cohesion during intense rainfall. In contrast, stable slopes possess higher plasticity and greater water retention, often reinforced by vegetation roots. These findings highlight the combined role of geological structure and soil properties as reliable indicators of landslide susceptibility. The study’s novelty lies in its outcrop-scale comparative approach within a single volcanic formation, providing practical implications for slope management through vegetation reinforcement, improved drainage, and locally calibrated rainfall thresholds.  Full text pdf
Characterization of Physicochemical Properties of Degraded Inceptisol and Growth Performance of Barangan Banana (Musa paradisiaca L.) Saputtra, Dimas Candra Dwi; Prawito, Priyono; Habibil, Winaldy Rahmadan; Widiyono, Heru; Fahrurrozi, Fahrurrozi
TERRA : Journal of Land Restoration Vol. 8 No. 2 (2025)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study evaluated the physicochemical characteristics of degraded Inceptisol and the growth performance of Barangan banana (Musa paradisiaca L.) under two soil management systems—tillage and no-till—in Seluma, Bengkulu Province, Indonesia. Field observations were conducted on a 25 ha banana plantation, with soil samples collected at depths of 0–15 cm and 15–30 cm. Plant growth measurements were taken from two representative plants per plot. Data were analyzed using a randomized complete block design (RCBD), followed by Duncan’s Multiple Range Test (DMRT) at α = 0.05. Tillage significantly improved several soil properties, including bulk density, aggregate stability, and nutrient availability. Tilled plots exhibited greater aggregate stability, higher cation exchange capacity (CEC), and increased exchangeable K and available P. The surface layer (0–15 cm) also contained higher total nitrogen and available nutrients compared with deeper soil. For plant responses, tillage enhanced plant height and pseudostem girth, suggesting better soil structure and nutrient uptake, whereas no-till plots produced more leaves. Overall, moderate tillage improved soil physical quality and nutrient dynamics in degraded Inceptisol, thereby supporting superior vegetative growth of Barangan banana. Full text pdf
Effect of Different Concentration of Liquid Organic Fertilizer and Varieties on The Growth and Yield of Red Chili (Capsicum annuum L.) in Sandy Soil Setiyawan, Andre; Octavia, Sri Devi
TERRA : Journal of Land Restoration Vol. 8 No. 2 (2025)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/terra.8.2.105-113

Abstract

Sandy soils, characterized by high sand content (often exceeding 70-90%), exhibit low nutrient retention, poor water holding capacity, and reduced cation exchange due to their coarse texture and low organic matter. These properties pose significant challenges for red chili (Capsicum annuum L.) cultivation, often resulting in suboptimal growth and yield without amendments. This study aimed to evaluate the effects of varying concentrations of liquid organic fertilizer derived from vinasse and different red chili varieties on the growth and yield of red chili plants in such challenging soil conditions. The experiment was conducted in a greenhouse at the Faculty of Agriculture, Sarjanawiya Tamansiswa University, Yogyakarta. A 3 × 2 factorial design arranged in a Completely Randomized Design (CRD) with four replications was employed. The first factor consisted of liquid organic fertilizer concentrations at 5%, 6%, and 7%, while the second factor included two red chili varieties: F1 Gada and Prabu. Growth parameters measured were plant height, number of leaves, stem diameter, and number of branches. Yield components included fresh and dry plant weight, number of fruits, and fresh fruit weight. The results indicated no significant interaction between fertilizer concentration and chili variety on growth and yield parameters. However, the F1 Gada variety exhibited significantly greater fresh plant weight and number of fruits compared to Prabu. These findings suggest that selecting appropriate chili varieties, such as F1 Gada, combined with optimal liquid organic fertilizer concentration, can improve red chili production in sandy soils. This information is valuable for farmers and agricultural practitioners aiming to enhancecultivation efficiency and yield within sustainable farming systems. Full text pdf

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