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Aplikasi Pupuk Organik Cair Limbah Rumah Tangga terhadap Pertumbuhan dan Hasil Tanaman Pakcoy Mayun, Ida Ayu; Astiningsih, A.A. Made; Sumarniasih, Made Sri
Agrotrop : Journal on Agriculture Science Vol 14 No 1 (2024)
Publisher : Fakultas Pertanian Universitas Udayana

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Application of Household Waste Liquid Organic Fertilizer on the Growth and Yield of Pakcoy Plants. Providing nutrients to cultivated plants is very important to support plant growth and development. The aim of the research was to determine the effect of household waste liquid organic fertilizer on the growth and yield of pak choy plants and which liquid organic fertilizer gave the best results. The research was carried out in a greenhouse using a completely randomized, non-factorial design. The research used polybags filled with 10 kg of soil as a medium and planted with pak choy vegetable plants. There are three treatments used, namely liquid organic fertilizer derived from rice washing water (POCB), onion skin washing water (POCBM), and fermented fruit residues (ecoenzymes) (POCEE). There were three treatments, namely: no treatment, giving 100 ml/1 liter of water, and giving 200 ml/1 liter of water. The number of treatments was 9 and repeated 4 times, so there were 36 treatments, and 2 plants were planted in each treatment, a total of 72 plants. Maintenance includes watering, cleaning plant media, and spraying using vegetable herbicides. The parameters observed were plant height, number of leaves, and fresh weight. Observations were made two weeks after planting, and then once a week until 45 days old (harvest). Based on the research results, the treatment that provides the best growth is ecoenzyme. The highest plant height was with the ecoenzyme treatment of 200 ml/1 liter of water (POEE2), followed by POBM2, POB2, namely 18.16 cm; 16.98 cm and 16.84 cm, the number of leaves is 9.6 pieces; 9.4 strands and 9.6 strands, and fresh weight 20 g; 19.5 g and 18.9 g. The results of the research are a recommendation that household waste is useful for making liquid organic fertilizer, as shown by the growth and fresh weight yield of pak choy plants.

Potensi Penambahan Sludge Minuman Ringan Berkarbonasi untuk Meningkatkan Mutu Kompos Agustina, I Komang Yudi; Arthagama, I Dewa Made; Trigunasih, Ni Made; Narka, I Wayan; Sumarniasih, Made Sri
Agrotrop : Journal on Agriculture Science Vol 14 No 1 (2024)
Publisher : Fakultas Pertanian Universitas Udayana

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Potential Addition of Carbonated Soft Drink Sludge to Improve Compost Quality. This research to aims knowing the dosage mix carbonated soft drink sludge in producing the best quality compost. This research was conducted from January to May 2021 in Tegak Village, Klungkung and at the Soil and Environment Laboratory, Faculty of Agriculture, Udayana University. The design used was a completely randomized design (CRD) with 6 formulation treatments and 4 replications. The treatments included: A (3 kg cow dung + 1 kg rice straw + 0% sludge), B (2,5 kg cow dung + 1,5 kg rice straw + 12,5% sludge), C (2 kg cow dung + 2 kg rice straw + 25 % sludge) D (1,5 kg cow dung + 2,5 kg rice straw + 37,5 % sludge), E (1 kg cow dung + 3 kg rice straw + 50% sludge) and F (0,5 kg cow dung + 3,5 kg rice straw + 62,5% sludge). The results of statistical analysis showed that the treatment tested had a very significant effect on organic C, total N, C/N ratio, P-available, pH and EC but had no significant effect on K-available and water content of the compost produced. The best compost quality was obtained in treatment C (C-organic 31,76%; total N; 1,60%; C/N ratio 19,90; P-available 0,06%; K-available 0,07%; pH 7,47; water content 24,01 %), followed by treatments F (C-organic 23,86%; total N 1,55%, C/N ratio 15,40; P-available 0,04 %; K-avaliable 0,07%; pH 7,68; water content 24,83%) and E (C-organic 26,58%; total N 1,57%; C/N ratio 16,93; P-available 0,05%; K-available 0,07%;pH 7,57; water content 23.36%).

Exploring soil erodibility: integrating field surveys, laboratory analysis, and geospatial techniques in sloping agricultural terrains Soniari, Ni Nengah; Trigunasih, Ni Made; Sumarniasih, Made Sri; Saifulloh, Moh
Journal of Degraded and Mining Lands Management Vol. 12 No. 1 (2024)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2024.121.6533

The escalating trend of land degradation poses a significant challenge, especially in sloping agricultural terrains, driven by the increasing global demand for food and the limited availability of flat arable land. In response to these challenges, farmers are compelled to shift their focus towards cultivating sloping terrains. This research aimed to employ a comprehensive methodology that integrates on-site field surveys, meticulous laboratory soil analyses, and geospatial data for mapping soil erodibility. The parameters under scrutiny encompass various crucial aspects, including soil texture (ranging from coarse sand to very fine sand, silt, and clay), soil structure, organic matter content, and permeability. The meticulous examination of these factors serves as the foundation for calculating soil erodibility, utilizing the well-established Wischmeir and Smith formula developed in 1978. The research findings present a nuanced understanding of soil erodibility in the study location, revealing a spectrum spanning low to very high erodibility. Specific units, such as Unit 1, Unit 2, Unit 3, Unit 7, Unit 9, Unit 10, Unit 13, and Unit 16, exhibit very low to low erodibility. In contrast, Unit 4, Unit 6, Unit 14, and Unit 15 showcase moderate erodibility, while units like Unit 5, Unit 8, Unit 11, Unit 12, Unit 17, and Unit 18 are characterized by moderately high to very high erodibility. These insightful results shed light on the diverse erodibility levels within the studied locations and provide valuable guidance for formulating sustainable land management practices.

SOIL FERTILITY AND QUALITY STATUS FOR BALANCED FERTILIZATION-BASED AGRICULTURAL LAND MANAGEMENT IN MENDOYO DISTRICT Vandani, Yayan; Trigunasih, Ni Made; Sumarniasih, Made Sri
Jurnal Agrotek Tropika Vol. 13 No. 3 (2025): JURNAL AGROTEK TROPIKA VOL 13, AGUSTUS 2025
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jat.v13i3.9933

Soil fertility and quality have declined due to conventional farming practices that neglect fertilization. To restore soil fertility and quality, an evaluation is being conducted to determine balanced fertilization doses. This research aims to identify the soil fertility and quality status in the Mendoyo Subdistrict so as to provide recommendations for balanced fertilization in specific agricultural areas. The methods used were surveying and laboratory soil testing. The results demonstrated that the Mendoyo Subdistrict exhibited a combination of moderate and high soil fertility levels. The soils with moderate status were located in HLU (Homogeneous Land Units) I, II, V, VIII, IX, and X, while the those with high ones were located in HLU III, IV, VI, and VII. Moreover, the subdistrict exhibited varying levels of soil quality, ranging from poor to moderate, good, and very good. The poor-quality soil was located in HLU I, the good ones were located in HLU II, III, and IV, and the very good ones were located in HLU V, VI, VII, VIII, IX, X. The limiting factors in this research included texture, C-organic, nutrients (N, P, and K), and C-biomass. Meanwhile, the advanced regression and correlation tests indicated that C-organic was the most influential factor in determining soil fertility and quality, thus resulting in a recommended organic fertilizer dose of 2 t ha-1 for rice (Oryza sativa L), 15 kg plant-1 th-1 for cocoa (Theobroma cacao L) and robusta coffe (Caffea canephora), and 10 t ha-1 for coconut (Cocos nucifera) and banana (Musa paradisiaca L). Inorganic fertilizer doses vary depending on the soil's N, P, and K content.

Analisis Kualitas Tanah dan Arahan Pengelolaan pada Lahan di DAS UNDA Provinsi Bali, Indonesia Febriana, Anastasia; Trigunasih, Ni Made; Sumarniasih, Made Sri
Agro Bali : Agricultural Journal Vol 7, No 1 (2024)
Publisher : Universitas Panji Sakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37637/ab.v7i1.1309

Produktivitas lahan di Daerah Aliran Sungai (DAS) Unda terjadi penurunan akibat jenis tanah Regosol yang sangat rentan pada erosi; serta 45,64% bentuk permukaannya tergolong bergelombang, berbukit sampai bergunung, dan berkembangnya tempat galian C secara ilegal di beberapa tempat. Data kualitas tanah yang diperoleh dapat dimanfaatkan sebagai acuan untuk pengelolaan tanah yang dapat meningkatkan kualitas tanah untuk meningkatkan produktivitas lahan di DAS Unda. Tujuan penelitian untuk mengetahui kualitas tanah pada lahan di DAS Unda; untuk mengetahui faktor apa saja yang menjadi faktor pembatas pada kualitas tanah di DAS Unda; untuk mengetahui sebaran spasial kualitas tanah di DAS Unda; memberikan arahan pengelolaan tanah berdasarkan faktor pembatas yang diperoleh di DAS Unda. Penelitian dilaksanakan di lahan DAS Unda yang melalui Kabupaten Bangli, Karangasem dan Klungkung, Provinsi Bali. dan di Laboratorium Ilmu Tanah, Fakultas Pertanian, Universitas Udayana. Penelitian ini menggunakan metode survei, analisis tanah di laboratorium, dan penetapan kualitas tanah. Indikator kualitas tanah yang diukur sebagai minimum data set (MDS): berat volume tanah, tekstur tanah, porositas, kadar air kapasitas lapang, pH, C-organik, KTK, KB, unsur hara (N, P dan K), dan C-biomassa. Hasil penelitian menunjukkan kualitas tanah pada lokasi penelitian tergolong buruk tingginya tingkat erosi tanah dan kurangnya kandungan bahan organik pada tanah pada SLH 2, 5, 7, 15, 16 dan 17. Pada SLH 3, 4, 6, 8, 9, 10, 11, 12, 13, 18, 19, 20, 21, 22, 23, 26, 27 dan 28 menunjukkan kualitas tanah sedang diakibatkan berbagai faktor seperti kelembaban tanah yang tinggi, kandungan bahan organik yang rendah, kandungan bahan hara yang tidak seimbang, kondisi morfologi tanah yang kurang ideal, dan penggunaan pupuk yang kurang tepat, pH rendah dan kepadatan tanah. Berbeda dengan SLH 1 (Desa Pempatan), 14 (Desa Menanga), 24 (Desa Gunaksa) dan 25 (Desa Telaga Tawang) dengan nilai IKT 25 tergolong kualitas baik. Faktor-faktor pembatas di daerah penelitian meliputi: pH tanah, tekstur tanah, porositas, P-tersedia, N-total, C-organik dan C-Biomassa. Direkomendasikan pengolahan tanah dengan menggunakan pemupukan dengan pupuk organik dan Urea pada SLH 1, 4, 8, 9, 10, 11, 13, 14, 16, 18, 20, 22, 23, 26, dan 27. Pemupukan SP-36/TSP dianjurkan pada SLH 12, 24, 25, dan 28.

Evaluasi Kesesuaian Lahan untuk Pengembangan Tanaman Konservasi dan Perkebunan di DAS Unda, Provinsi Bali, Indonesia Sidabutar, Febrin; Trigunasih, Ni Made; Sumarniasih, Made Sri
Agro Bali : Agricultural Journal Vol 6, No 3 (2023)
Publisher : Universitas Panji Sakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37637/ab.v6i3.1277

Penelitian ini bertujuan untuk mengevaluasi kesesuaian lahan dalam konteks pengembangan tanaman konservasi dan perkebunan di DAS Unda, sebuah daerah aliran sungai kritis di Provinsi Bali. Kondisi kritis DAS Unda, terutama lereng yang dominan terjal dan jenis tanah Regosol dengan tekstur tanah berpasir, menimbulkan tantangan restorasi karena daya ikat air yang rendah. Metode yang digunakan mencakup survei lapangan, analisis data, dan klasifikasi kesesuaian lahan, dengan tujuan utama menilai kesesuaian lahan aktual dan potensial untuk tanaman konservasi dan perkebunan seperti mahoni, pinus, kopi robusta, bambu, jati, kakao, dan kelapa. Evaluasi kesesuaian lahan didasarkan pada faktor pembatas suhu, curah hujan, tekstur tanah, dan risiko erosi. Hasil penelitian menghasilkan kelas kesesuaian lahan potensial yang berkisar dari S1 (sangat sesuai) hingga N (tidak sesuai). Faktor pembatas diidentifikasi dan upaya perbaikan diarahkan untuk meningkatkan kesesuaian lahan. Sebagai arahan penggunaan lahan, rekomendasi termasuk alokasi lahan untuk tanaman konservasi dan perkebunan, seperti bambu, kombinasi bambu dan kakao, bambu dan kelapa, bambu dan kopi, serta kombinasi bambu, kakao, dan kelapa. Dengan demikian, penelitian ini tidak hanya memberikan evaluasi kesesuaian lahan tetapi juga memberikan pandangan solutif untuk pengembangan lahan yang berkelanjutan di DAS Unda.

Evaluasi Kualitas Tanah dan Pengelolaan Lahan Kering di Kecamatan Gerokgak dan Kubutambahan Kabupaten Buleleng, Provinsi Bali, Indonesia Sumarniasih, Made Sri; Kembaren, Donny Alfred; Narka, I Wayan; Karnata, I Nengah
Agro Bali : Agricultural Journal Vol 6, No 3 (2023)
Publisher : Universitas Panji Sakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37637/ab.v6i3.1517

Penelitian ini dilakukan di Kecamatan Gerokgak yang terletak di bagian barat Kabupaten Buleleng, dan Kecamatan Kubutambahan yang terletak di bagian timur Kabupaten Buleleng. Tujuan penelitian adalah mengevaluasi perbedaan kualitas tanah, faktor pembatas dan arahan pengelolaan. Metode yang digunakan adalah survei untuk mengetahui karakteristik di lapangan dan pengambilan sampel tanah untuk diuji di laboratorium mengenai sifat fisik tanah (tekstur, kadar air kapasitas lapang, porositas, dan berat volume), sifat kimia tanah (KTK, KB, N-total, K, P-tersedia, C-organik, dan pH), dan sifat biologi tanah (C-biomassa). Berdasarkan hasil penelitian, kualitas tanah di Kecamatan Gerokgak tergolong baik (SLH G2, dan G4) seluas 37.793,00 ha dan kualitas tanah tergolong sedang (SLH G1, G3, G5, G6, G7, G8, G9, G10, dan G11) seluas 39.586,00 ha. Kualitas tanah di Kecamatan Kubutambahan tergolong sedang (SLH KB3, KB4, dan KB7) seluas 47.824,00 ha, dan tergolong buruk (KB1, KB2, KB5, KB6 dan KB8) seluas 50.120,00 ha. Faktor pembatas kualitas tanah di Kecamatan Gerokgak adalah kadar air kapasitas lapang, C-organik, KB, P-tersedia, N-total, C-biomassa, sedangkan di Kecamatan Kubutambahan adalah tekstur, kadar air kapasitas lapang, KTK, KB, N-total, C-biomassa. Pengelolaan lahan yang dilakukan di Kecamatan Gerokgak dan Kubutambahan adalah pemupukan dengan pupuk organik, pupuk urea, dan pembuatan bak penampungan air atau cubang.

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