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Nutrient Enrichment of Cow Manure-Based Organic Fertilizer at Subak Mertasari, Jembrana Yohanes Parlindungan Situmeang; Ida Bagus Komang Mahardika; Evik Andiharta; Rahma Ciptaningrum; Yolanda Ezra Angelia Situmeang
AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Vol. 10 No. 3 (2026)
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy (SAFE-Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29165/ajarcde.v10i3.1115

Abstract

Cow manure waste at Subak Mertasari, Jembrana, Bali, was largely unprocessed and applied raw to agricultural fields, causing slow nutrient release and environmental contamination. This community service program responded to that problem by introducing a nutrient-enrichment method for cow manure-based organic compost, using biochar, effective microorganisms (EM4), molasses, agricultural lime (dolomite), and NPK fertilizer as enrichment agents. Twenty subak members took part across five implementation stages: socialization, technical training, compost production, quality monitoring, and business sustainability. Biomass waste was first converted to porous biochar through pyrolysis, then co-composted with inoculated cow manure over roughly 30 days. The resulting fertilizer met SNI 19-7030-2004 criteria: dark brown to black, crumbly, moisture below 20%, and free of offensive odor. Biochar addition raised soil pH and cation exchange capacity (CEC) while locking carbon in a stable form that limits greenhouse gas release. On the socio-economic side, farmers gained the skills to produce fertilizer independently, and a cooperative-based business unit was established for commercial distribution. These results show that integrated compost enrichment is a practical and scalable approach to sustainable agriculture in Bali. Contribution to Sustainable Development Goals (SDGs):SDG   2: Zero HungerSDG 12: Responsible Consumption and ProductionSDG 13: Climate ActionSDG 15: Life on Land
PENGARUH MULSA PLASTIK DAN TUMPANGSARI DENGAN KACANG HIJAU TERHADAP PERTUMBUHAN DAN HASIL PADI BERAS HITAM SISTEM IRIGASI AEROBIK Aloysius Rabata Nggale; Ida Bagus Komang Mahardika; Wayan WANGIYANA
AGROTEKSOS, Jurnal Ilmiah Ilmu Pertanian Vol 35 No 3 (2025): Jurnal Agroteksos Desember 2025
Publisher : Fakultas Pertanian Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/agroteksos.v35i3.1429

Abstract

Abstrak. Penelitian ini bertujuan untuk mengetahui pengaruh mulsa plastik dan tumpangsari dengan kacang hijau terhadap pertumbuhan dan hasil padi beras hitam pada sistem irigasi aerobik. Percobaan dilaksanakan di Desa Taman, Abiansemal, Badung, Bali dari dari bulan April sampai dengan Agustus 2024, yang ditata menurut rancangan Split Pot design dengan tiga blok (ulangan) dan dua faktor perlakuan, yaitu mulsa plastik (P0: tanpa mulsa plastik; P1: dengan mulsa plastik penutup bedeng) dan tumpangsari (T0: tanpa tumpangsari; T1: tumpangsari padi beras hitam dengan kacang hijau). Hasil penelitian menunjukkan bahwa aplikasi mulsa plastik pada bedeng penanaman padi beras hitam berpengaruh nyata terhadap jumlah daun, jumlah anakan, jumlah malai, jumlah gabah berisi, jumlah gabah hampa, dan hasil gabah per rumpun dengan rata-rata hasil gabah lebih tinggi pada aplikasi mulsa plastik (84,97 g/rumpun) dibandingkan tanpa mulsa plastik (66,88 g/rumpun), sedangkan tumpangsari dengan kacang hijau hanya berpengaruh nyata terhadap tinggi tanaman dan berat 100 gabah berisi. Namun demikian, pengaruh interaksi antar faktor perlakuan hanya signifikan terhadap tinggi tanaman, jumlah gabah berisi per malai dan per rumpun, berat 100 gabah, dan hasil gabah, dengan rata-rata hasil gabah tertinggi pada padi beras hitam tumpangsari dengan kacang hijau pada bedeng bermulsa plastik (89,65 g/rumpun). Abstract. This study aims to determine the effect of plastic mulch and intercropping with mungbean on growth and yield of black rice in an aerobic irrigation system. The experiment was conducted in Taman Village, Abiansemal, Badung, Bali from April to August 2024, which was arranged according to Split Pot design with three blocks (replications) and two treatment factors, namely plastic mulch (P0: without plastic mulch; P1: with plastic mulch covering the raised-beds) and intercropping (T0: without intercropping; T1: intercropping black rice with mungbean). The results showed that the application of plastic mulch on the raised-beds significantly affected number of leaves, tillers, panicles, filled grains, unfilled grains, and grain yield per clump with higher grain yield under application of plastic mulch (84.97 g/clump) compared to without plastic mulch (66.88 g/clump), while intercropping with mungbean only significantly affected plant height and weight of 100 filled grains. However, interaction effects between the treatment factors were significant only on plant height, number of filled grains per panicle and per clump, weight of 100 grains, and grain yield, with the highest grain yield was on black rice plants intercropped with mungbean grown on the raised-beds covered with plastic mulch (89.65 g/clump).
The Effectiveness of Weed Extracts as Biopesticides and the Frequency of Application Against Chrysanthemum Pests A. A. S. P. R. Andriani; I Gusti Made Arjana; Ida Bagus Komang Mahardika; I Putu Diki Aditya Putra; Desak Nyoman Triyana
AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Vol. 10 No. 3 (2026)
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy (SAFE-Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29165/ajarcde.v10i3.1210

Abstract

The continued use of synthetic pesticides can negatively affect the environment, human health, and the sustainability of crop cultivation. Therefore, weed extracts as plant-based biopesticides offer an environmentally friendly alternative for controlling pests on chrysanthemum plants. This study aims to analyze the effects of the type of weed solution and application frequency on the growth, flower yield, and pest infestation levels of chrysanthemum plants. The study employed a nested randomized block design consisting of two factors: the type of weed solution, which included Chromolaena odorata L (A), Ageratum conyzoides L. (B), Euphorbia hirta L. (C), Isotoma longiflora (D), and Echinochloa crus-galli (E), and application frequency of 1 time (K1), 2 times (K2), and 3 times (K3). The observed variables included flower stalk length, flower stalk weight, flower diameter, fresh weight of marketable flowers, and the percentage of infected leaves. The data were analyzed using analysis of variance (ANOVA), followed by a BNT test at the 5% significance level. The results showed that the type of weed solution significantly affected flower stalk length, flower stalk weight, flower diameter, and fresh weight of marketable flowers, but not the number of infected leaves. The Isotoma longiflora extract treatment produced the best flower growth and quality, with a flower stalk length of 81.16 cm, a flower stalk weight of 50.44 g, a flower diameter of 4.63 cm, and an economic fresh flower weight of 44.73 g. The application frequency at 9 weeks after planting (K3) yielded the best results for nearly all observed parameters. Contribution to Sustainable Development Goals (SDGs):SDG 12: Responsible Consumption and ProductionSDG 13: Climate ActionSDG 15: Life on Land
Co-Authors , I Gusti Made Arjana A. A. S. P. R. Andriani A. A. S. P. R. Andriani A.A. Made Semariyani A.A. N. Mayun Wirajaya A.A.S Putri Risa AA Mayun Wirajaya Aldianto mau awang Aloysius Rabata Nggale Amblayasa, Anak Agung Bagus Amelia Nicolas Anak Agung Mayun Wirajaya Anak Agung Ngurah Mayun Wirajaya Anak Agung Ngurah Mayun Wirajaya Andriani, A. A. S. P. R. Andriani, Anak Agung Sagung Putri Risa Antonius Petrus Lalu Mato Apriliathi, Ni Putu Siska Arjana, , I Gusti Made Arjana, I Gusti Made Aulia, Fadilla Azmi, Aida Firdaus Muhammad Nurul Basister, Michel P. Basister Bornalo, Joemyline M. Calig, Nanie R. Desak Ketut Tristiana Sukamadewi Desak Nyoman Triyana Dewi, I Gusti Ayu Adis Puspita Dusak, Putu Gede Janardhana Engelbertus Angkur Evik Andiharta Hanilyn Aguilar Hidalgo I G.B. Udayana I G.M, Arjana I Gede Pasek Mangku I Gusti Bagus Udayana I Gusti Bagus Udayana I Gusti Made Arjana I Gusti Made Arjana I Gusti Ngurah Agung Pawana I Gusti Nyoman Wijayana I Kadek Benzen Prayoga I Kadek Sudiadnyana I Komang Jiwa Antara I N. Suaria I Nengah Muliarta, I Nengah I Nengah Suaria I NYOMAN RAI I Putu Arta Subagia Yasa I Putu Diki Aditya Putra I Wayan Juliartawan I Wayan Riandana Janurianti, Ni Made Defy K Agung Sudewa Kartana, I Wayan Luh Kartini Luh Kartini M. Sudiana Mahendra Made Sri Yuliartini Made Sri Yuliartini Made Suarta Made Yuliartini Manase Wolu Praing Maria Mahdalena Yulia Ratnaningtyas Maria Scolastika Dede Ma’ruf Pambudi Nurwantara Mertayasa, Komang Gede Modesta Sriayuningsi Todo Mudra, Luh Komang Sulasmini Mudra, Ni Luh Komang Sulasmini N.K.D.A Dewi Ni Komang Alit Astiari Ni Komang Ayu Aryawati Dewi Ni Luh Kartini Ni Luh Putu Indiani Ni Made Ayu Gemuh Rasa Astiti Ni Putu Anom Sulistiawati, Ni Putu Anom Nicolas, Amelia Pahuyo, Therese Samantha V. Praing, Manase Wolu Prakerti, Ni Luh Adelia Darma Pratama, I Gusti Ngurah Agung Pratiwi, Ni Putu Yuliari Nanda Putra, I Ketut Suwarmadi Putra, I Wayan Widiantara Putri Risa Adriani Anak Agung Sagung Putu Krisnawan Kalimutu Radu, Valentin Rahayu, Ni Ketut Sri Rahma Ciptaningrum Rahman, Siti Maslizah Abdul Rematwa, Afelinus Riandana, I Wayan Rindang Dwiyani Rohanis Yuliyati Rohanis Yuliyati Ryantobi, Anggeline Barek Oran S Homya S Vongtanaboo Sandra Pakusi Sandra Pakusi Sanjaya, I Gusti Agus Maha Putra Siti Maslizah Abdul Rahman Stefani Vivilia Y. Markus Suastyayama, Kadek Damana Sukamadewi, Desak Ketut Tristiana Sukmadewi, Desak Ketut Tristiana Sulistyawan, Dedhy Sunadra, I Ketut Tupaz, Aycel N. W Hancharoen Wayan WANGIYANA Wayan Wangiyana Widyawati , Ida Ayu Trisna Widyawati, Ida Ayu Trisna Wijaya, I Kadek Merta Wirajaya, AA Mayun Wirajaya, Anak Agung Mayun Wirajaya, Anak Agung Ngurah Mayun Wunda, Dinasti Dada Yasa, I Putu Arta Subagia Yohanes Parlindungan Yohanes Parlindungan Situmeang Yolanda Ezra Angelia Situmeang