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SEJARAH DAN PERAN STRATEGIS BENTENG PENDEM CILACAP PADA MASA PENJAJAHAN BELANDA DAN JEPANG TAHUN 1879 – 1945 Puspita Sari, Niken; Triwahana
KARMAWIBANGGA: Historical Studies Journal Vol. 6 No. 1, 2024
Publisher : Universitas PGRI Yogyakarta

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This study aims to (1) examine the history of the construction of Benteng Pendem Cilacap, (2) investigate the function of Benteng Pendem Cilacap during Dutch and Japanese colonial periods, and (3) analyze changes in Benteng Pendem Cilacap between 1879 and 1945. The research was conducted in Cilacap Regency, Central Java, using historical research methods. Data were collected through literature review, and the research process involved four steps: heuristic, verification, interpretation, and historiography. The findings indicate that Benteng Pendem was built by the Dutch in 1861 as part of a colonial defense strategy along the southern coast of Java. The fort served to monitor and protect the coastal area from external threats, primarily from sea attacks. In 1942, during the Japanese occupation, Benteng Pendem was taken over and repurposed as part of Japan's defense strategy in the context of World War II. During this period, the fort underwent modifications, including the addition of four bunkers on the upper level to provide protection from aerial attacks.

The Potential of Trichoderma sp. as a Decomposer of Cocoa Pod Husk- Based Compost on Degradation of Herbicide and Insecticide Residues Perdana, Andrian; Puspita Sari, Niken
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol. 41 No. 2 (2025)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v41i2.659

Compost, a final product of composting as a sustainable waste management strategy, contains a wide range of organic pollutants penetrating by deliberate input such as pesticide application in feedstock materials. The involvement of Trichoderma in composting processes is expected to degrade pesticide compounds and enhance compost quality. The study employed four treatments: P1D0 (herbicide without Trichoderma sp.), P1D1 (herbicide with Trichoderma sp.), P2D0 (insecticide without Trichoderma sp.), and P2D1 (insecticide with Trichoderma sp.). The results of pesticide residue and compost quality were analyzed descriptively by comparing the effects of Trichoderma sp. n degrading the herbicide and insecticide residue through the composting process. Compost quality was monitored through initial, biweekly, and final analyses. All compost fulfilled the minimum standards set by the Indonesian Ministry of Agriculture. Incorporation of Trichoderma sp. enhanced compost quality by increasing N content (up to 37.23%) and pH (up to 5.28%), while reducing the C:N ratio (up to 50%). Moreover, it effectively degraded glyphosate and cypermethrin residues by up to 99.96% and 99.48%, respectively. These findings highlight the dual role of Trichoderma-enriched compost in improving compost quality and remediating pesticide residues, supporting sustainable and environmentally friendly agricultural practices.

SEJARAH DAN PERAN STRATEGIS BENTENG PENDEM CILACAP PADA MASA PENJAJAHAN BELANDA DAN JEPANG TAHUN 1879 – 1945 Puspita Sari, Niken; Triwahana
KARMAWIBANGGA Historical Studies Journal Vol. 6 No. 1 (2024)
Publisher : Universitas PGRI Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31316/fkip.vi.7199

This study aims to (1) examine the history of the construction of Benteng Pendem Cilacap, (2) investigate the function of Benteng Pendem Cilacap during Dutch and Japanese colonial periods, and (3) analyze changes in Benteng Pendem Cilacap between 1879 and 1945. The research was conducted in Cilacap Regency, Central Java, using historical research methods. Data were collected through literature review, and the research process involved four steps: heuristic, verification, interpretation, and historiography. The findings indicate that Benteng Pendem was built by the Dutch in 1861 as part of a colonial defense strategy along the southern coast of Java. The fort served to monitor and protect the coastal area from external threats, primarily from sea attacks. In 1942, during the Japanese occupation, Benteng Pendem was taken over and repurposed as part of Japan's defense strategy in the context of World War II. During this period, the fort underwent modifications, including the addition of four bunkers on the upper level to provide protection from aerial attacks.

The The Utilization of Cocoa Pod Husk-Based Compost Inoculated with Arbuscular Mycorrhizal Fungi on Soil Chemical Properties and Nutrient Uptake of Coffee Plants Perdana, Andrian; Puspita Sari, Niken; Zakariyya, Fakhrusy; Anita Sari, Indah; Astika Sari, Dini
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol. 41 No. 3 (2025)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v41i3.692

Sustainable waste management and the preservation of soil health represent critical challenges in intensive coffee and cocoa plantation. Composting offers an effective approach for sustainable waste management by enhancing soil health, while arbuscular mycorrhizal fungi (AMF) optimize nutrient uptake (NU) efficiencyin coffee plants. This research aimed to investigate the effect of cocoa pod huskbased compost inoculated with AMF on soil chemical properties and NU in coffee plants. This research employed a completely randomized design with two factors. Factor I consisted of three compost doses: K0 (no compost), K1 (15% compost,w/w), and K2 (30% compost, w/w). Factor II comprised three levels of AMF: F0 (no AMF), F1 (15 g polybag-1 ), and F2 (30 g polybag -1 ). Compost application significantly enhanced soil nutrient levels of N, P, K, C-organic, and CEC, as well as improved the uptake of N, P, and K by coffee plants. Similarly, AMF significantly increased soil P levels and P uptake by coffee plants. The combined application of compost and AMF further contributed to an increase in soil P availability. The K1F1 treatment (15% compost and 15 g AMF polybag -1 ) was the most effective in optimizing nutrient turnover, as indicated by the highest uptake of N (33.48 g plant -1) and P (1.37 g plant -1), which contributed to enhance plant performance. According to nutrient availability classification, this treatment supplied sufficient soil N (0.36%) and soil organic C (SOC) (2.54%). However, excessive N and SOC induces antagonistic interactions, compromising the efficient uptake of P and K, while deficiencies constrain overall nutrient acquisition.

Soil Organic Carbon Stocks Across Different Agroforestry Systems in Coffee-Based Land Use: A Case Study in Malang, Indonesia Perdana, Andrian; Puspita Sari, Niken; Yuliasmara, Fitria; Erdiansyah, Novie Pranata
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol. 41 No. 3 (2025)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v41i3.695

Agroforestry systems have garnered significant attention for their potential in enhancing soil organic carbon (SOC) stocks, particularly in coffee plantations. The different shading conditions not only diversifies production but also plays a crucial role in soil health and carbon sequestration. The study aimed to investigate the SOC stocks under various coffee-based agroforestry systems. Four different shading conditions have been examined, namely: A (unshaded), B (Leucaena leucocephala shade), C (Pinus sp. shade), and D (complex agroforestry). The results were analyzed descriptively by comparing the influence of varying shading conditions in enhancing SOC stocks. The results indicated that complex agroforestry had the highest SOC (1.33%), followed by L. leucocephala shade (1.20%), unshaded (1.02%), and Pinus sp. shade (0.96%). In the complexagroforestry system, the diversification of plant species increases soil organic matter (SOM) and root biomass, thus improve SOC. Meanwhile, the Pinus sp. shade exhibited the lowest SOC due to the lower quality of its resistant litter. The complex agroforestry also recorded the highest SOC stocks (42.7 t C ha -1), followed by unshaded (39.9 t C ha -1), L. leucocephala shade (38.3 t C ha -1), and Pinus sp. shade (30.5 t C ha-1). The SOC stocks in the unshaded system exceeded those under L. leucocephala shade due to higher bulk density resulting from the absence of complex root systems. Moreover, the complex agroforestry exhibited elevated levels of soil N, P, K, and CEC. These findings implied that complex agroforestry system represents a multifaceted approach to enhance SOC stocks and soil health in coffee plantation.

The Effect of Botanical Nutrients Enriched with Trichoderma sp. on the Growth of Cocoa Seed Radicles (Theobroma cacao L.) qomariyah, mahyatul; Mudakir, Imam; Puspita Sari, Niken
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol. 41 No. 3 (2025)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v41i3.696

Cocoa (Theobroma cacao L) is a plant that is widely cultivated by the Indonesian people. Many cocoa farmers experience crop failure due to pests and diseases. One effort that can be made to reduce this problem is to create high-quality cocoa seeds that are able to survive when attacked by pests and diseases. This study aims to investigate the effect of adding nutrients in the form of biosaka and Trichoderma sp. to cocoa seed soaking water on radicle length. The biosaka treatment used three different formulas: A: control, B: formula 1 (a mixture of weeds and water shoots in a 1:1 ratio), B: formula 2 (a mixture of weeds and water shoots in a 2:1 ratio), and C: formula 3 (a mixture of weeds and water shoots in a 1:2 ratio). Each biosaka solution was mixed with Trichoderma sp. at a dilution of 10-1, and the treatment was repeated three times, with three cocoa seeds in each replicate. The results obtained indicate that the best biosaka formula for cocoa seed radicle length, spore count, and spore density of Trichoderma sp. is the biosaka with a weed and water sprout ratio of 2:1 mixed with Trichoderma sp. at a dilution of 10 L .

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