Litter Decomposition Rate of Karst Ecosystem at Gunung Cibodas, Ciampea Bogor Indonesia

Sari, Sethyo Vieni; Qayim, Ibnul; Hilwan, Iwan

doi:10.11594/jtls.06.02.08

Cited by 4 publications

(4 citation statements)

References 14 publications

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“…The variables observed included compost temperature, decomposition rate, moisture content, C/N, pH, organic C, N, P, and K compost, compost weight, and weight loss of compost during composting. The rate of decomposition and decomposition percentage during composting is calculated using equations (Olson, 1963; Sari et al, 2016) [8,10] . [8,10] .…”

Section: Methodsmentioning

confidence: 99%

“…The rate of decomposition and decomposition percentage during composting is calculated using equations (Olson, 1963; Sari et al, 2016) [8,10] . [8,10] .…”

Section: Methodsmentioning

confidence: 99%

“…R = Decomposition rate (g/day) T = Composting time (days) W0 = Initial material weight Wt = Weight after composting process at T-time The weight of the compost and the weight loss of the compost are obtained at weighing the final weight and then looking for the difference between the initial weight and the final weight.The percentage of weight loss during the composting process is calculated according to the equation(Olson, 1963;Sari et al, 2016) …”

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confidence: 99%

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Composting of sugarcane trash by using a microbial consortium

TB,

VA,

et al. 2024

Int. J. Res. Agron.

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In sugarcane farms, sugarcane trash has been a potential source of raw materials that can be processed into organic fertilizer. The present study aims to examine the ability of fungal and bacterial decomposers to decompose sugarcane trash. Further, our study is to examine the composting rate and compost quality of sugarcane trash. Three fungal species and three bacterial species were used for the evaluation of the decomposition of sugarcane trash. The combination of fungal decomposers consists of Aspergillus awamori, Penicillium chrysogenum and Trichoderma viride. The combination of bacterial decomposers consists of Pseudomonas fluorescence, Bacillus subtilis, and Bacillus polymixa. Four treatments are prepared: the first is fungal decomposers, the second is bacterial decomposers, the third is a combination of fungal and bacterial species, and the fourth is control (void decomposers). Two turnings of compostable material were done at 15 and 30 days. The decomposer dose used was 10 ml of each bacteria (concentration: 2.2×10 9 CFU/ml) or fungus (2×10 6 CFU/ml) per 10 kg of sugarcane trash for each treatment. Composting was conducted for 70 days. The samples were drawn after 70 days for analysis of different parameters. In this study, decomposition rate, decomposing percentage, weight loss, C:N ratio, pH, total nitrogen, phosphorous, potassium, etc. were analyzed after the completion of the decomposition process. This experiment proved that the third treatment, a combination of fungal and bacterial species was more effective in terms of composting rate and compost quality.

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Section: Methodsmentioning

confidence: 99%

“…The rate of decomposition and decomposition percentage during composting is calculated using equations (Olson, 1963; Sari et al, 2016) [8,10] . [8,10] .…”

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

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Composting of sugarcane trash by using a microbial consortium

TB,

VA,

et al. 2024

Int. J. Res. Agron.

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“…Laju dekomposisi bergantung dari interaksi faktor iklim, kualitas dan kuantitas bahan organik dan dekomposer (Bohara et al, 2019;Wantzen et al, 2009;Logan et al, 2021;Knutson, 1997;Cotrufo et al, 2010;Ravn et al, 2020). Interaksi antara suhu tinggi, kelembaban tinggi dan aktifitas dekomposer tinggi mempercept laju dekomposisi (Sari et al, 2016;Devianti et al, 2017). Senyawa lignin, polifenol dan selulosa dalam bahan organik menentukan kecepatan dekomposisi (Fiqa & Sofiah, 2011).…”

Section: Pendahuluanunclassified

Karakterisasi POC (Pupuk Organik Cair) Berbasis Limbah Dapur Dari Universitas Darussalam Gontor Kampus Putri

Hamawi

Akhiriana

2022

AGRINIKA

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Kitchen waste, either the organic or the inorganic ones, accumulated on landfills causes environmental and health problems. Composting is an alternative that reduces environmental problems while producing Liquid Organic Fertilizers (LOF). This research was aimed to examine the LOF character made of organic kitchen waste from Darussalam Gontor University, Girls Campus. The research was conducted by composting 10 kg of kitchen waste (comprised of banana peel, rotten watermelon, and vegetable waste), 20 liters of rice washing water, 10 kg of eggshell, 1 kg of sugar, 1 liter of EM4 (decomposing microorganism), and 80 liters of water. The liquid fertilizer produced was analyzed physically, namely from the color, smell, and presence of insect larvae. Chemical analysis was carried out for the content of C-organic, organic matter N, P, and K). C-organic and other organic matter content were analyzed using the Walkley & Black method. Total N content was analyzed using the Kjeldahl method. The content of P and K were analyzed by the extraction method of HNO3 and HClO4. The liquid fertilizer produced was yellowish-brown in color, did not have a bad smell, and did not contain insect larvae. Its nutrient content, respectively C-organic, other organic matters, N, P, and K were 0.74%; 1.27%; 0.13%; 0.015%; and 0.10%. The fertilizer produced had not met the standards of the Ministry of Agriculture No. 261 of 2019. Further studies are needed with the addition of animal manure and the composition of the ratio of organic matter to water. Limbah organik dapur yang dibuang di tempat pembuangan akhir (TPA) menimbulkan permasalahan lingkungan dan kesehatan. Pengomposan sebagai salah satu alternatif mengurangi masalah lingkungan dari limbah organik dapur dan menghasilkan POC (Pupuk Organik Cair). Penelitian ini bertujuan untuk mengkaji karakter POC limbah organik dapur dari Universitas Darussalam Gontor Kampus Putri. Penelitian dilakukan dengan cara mengomposkan limbah dapur 10 kg (kulit pisang, semangka busuk dan limbah sayuran), air cucian beras 20 L, cangkang telur 10 kg, gula 1 kg, EM4 1 L dan air 80 L. POC yang dihasilkan dianalisa secara fisik (warna, bau dan kehadiran larva serangga) dan analisa kimia (kandungan C-organik, bahan organik, N, P dan K). Kandungan C-organik dan Bahan organik dianalisa dengan metode Walkley & Black. Kandungan N total dianalisa dengan menggunakan metode Kjeldhal. Kandungan P dan K dianalasi dengan metode ekstraksi HNO3 dan HClO4. POC yang dihasilkan berwarna coklat kekuningan, tidak berbau busuk dan tidak mengandung larva serangga. Kandungan unsur hara POC yaitu: C organik 0,74%; bahan organik 1,27%; N 0,13%; P 0,015%; K 0,10%. POC yang dihasilkan belum memenuhi standar Permentan No. 261 Tahun 2019, sehingga perlu kajian lebih lanjut dengan komposisi penambahan kotoran hewan dan komposisi perbandingan bahan organik dengan air.

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Decomposition rate of some dominant tree species in Low montane forest of Gunung Halimun Salak National Park, West Java-Indonesia

Rahajoe

Susanti

Simbolon

et al. 2021

IOP Conf. Ser.: Earth Environ. Sci.

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The research of decomposition rate of Altingia excelsa Noroña, Schima wallichii (D.C.) Korth., Castanopsis acuminatissima (Bl.) A. DC., C. javanica (Bl.) A. DC., and Quercus lineata Blume was carried out in the low montane forest in Gunung Halimun Salak National Park, West Java. The aim of the research was to examine the decomposition rate of dominant species and their role in the nutrient cycling. The decomposition rate of those dominant species was carried out by using the litterbag methods. The highest decomposition rate was observed for Q. lineata followed by C. javanica, C. acuminatissima, S. wallichii, A. excelsa and the mixed litter in Cikaniki research station. Meanwhile, in the Wates plot, the highest rate was observed for C. acuminatissima followed by C. javanica, Q. lineata, S. wallichii, A. excelsa and the mixed litter. This research shows that C. acuminatissima decomposed faster compared to other dominant species due to their litter quality combination of high nitrogen and low lignin content. Carbon and nitrogen released pattern were almost similar for the five dominant species. Based on the decomposition rate and the nutrient released pattern, it showed that the high litter decomposition rate of dominant species contributed to the rapid nitrogen released.

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Litter Decomposition Rate of Karst Ecosystem at Gunung Cibodas, Ciampea Bogor Indonesia

Cited by 4 publications

References 14 publications

Composting of sugarcane trash by using a microbial consortium

Composting of sugarcane trash by using a microbial consortium

Karakterisasi POC (Pupuk Organik Cair) Berbasis Limbah Dapur Dari Universitas Darussalam Gontor Kampus Putri

Decomposition rate of some dominant tree species in Low montane forest of Gunung Halimun Salak National Park, West Java-Indonesia

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