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All Journal Agrotrop : Journal on Agriculture Science International Journal of Biosciences and Biotechnology Buletin Udayana Mengabdi E-Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Jurnal Lahan Suboptimal Journal of Degraded and Mining Lands Management Caraka Tani: Journal of Sustainable Agriculture Jurnal Agrotek Tropika Agro Bali: Agricultural Journal Advances in Tropical Biodiversity and Environmental Sciences Jurnal Bali Membangun Bali Nandur
NI MADE TRIGUNASIH
Program Studi Agroekoteknologi, Fakultas Pertanian Universitas Udayana
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Environmental Science Languange, Linguistic, Communication & Media Medicine & Pharmacology Public Health Social Sciences Transportation Veterinary Other

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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

Abstract

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.
Jeruk Keprok Tejakula: Potensi Pengembangan Berdasarkan Analisis Kesesuaian Lahan di Kecamatan Tejakula, Kabupaten Buleleng Trigunasih, Ni Made; Rai, I Nyoman; Wijaya, I Nyoman; Wijana, Gede; Wirya, Gusti Ngurah Alit Susanta; Widhianthini, Widhianthini; Yudha, I Kadek Wisma; Utama, I Wayan Eka Karya; Wiraatmaja, Wayan
Bali Membangun Bali: Jurnal Bappeda Litbang Vol 5 No 1 (2024): April 2024
Publisher : Badan Riset dan Inovasi Daerah Provinsi Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51172/jbmb.v5i1.328

Abstract

Tujuan: Penelitian yang dilakukan bekerja sama dengan Badan Riset Inovasi Daerah (Brida) Provinsi Bali ini bertujuan untuk mengetahui potensi pengembangan jeruk keprok Tejakula dan sebarannya berdasarkan analisis kesesuaian lahan aktual dan potensial serta arahan pengelolaan lahan, dalam rangka pengembangan jeruk keprok Tejakula. Metode penelitian: Penelitian dilaksanakan di Kecamatan Tejakula Kabupaten Buleleng mulai Mei 2023 sampai November 2023. Metode yang digunakan dalam penelitian ini adalah metode survei dan wawancara. Metode klasifikasi kesesuain lahan ditetapkan dengan cara mencocokkan (matching) data karakteristik/kualitas lahan dengan kriteria syarat tumbuh berdasarkan pedoman Ritung et al. Penilaian kesesuaian lahan dilakukan sampai pada tingkat unit. Hasil dan pembahasan: Hasil penelitian menunjukkan bahwa kelas kesesuaian lahan aktual untuk tanaman jeruk keprok Tejakula tergolong S3 (sesuai marginal) sampai N (tidak sesuai) dengan factor pembatas curah hujan, tekstur, bahan kasar, KTK, N-total, P-tersedia, lereng dan bahaya erosi. Faktor pembatas setelah diperbaiki maka didapatkan kesesuaian lahan potensial tergolong S1 (sangat sesuai) sampai S2 (cukup sesuai) dengan faktor pembatas tekstur tanah. Implikasi: Perbaikan kesesuaian lahan potensial dapat dilakukan dengan upaya perbaikan struktur tanah dengan penambahan pupuk organik. Arahan penggunaan lahan pada lokasi penelitian dengan mengatur waktu tanam, penambahan pupuk organik, pupuk Urea, Pupuk TSP/SP36 dan menerapkan teknik konservasi yaitu dengan terasering dan tanaman penguat teras.
Soil Quality Analysis and Land Management Direction on Dry Land Areas in Tejakula and Buleleng Districts, Indonesia Apriadi, Putu Agung; Trigunasih, Ni Made; Mega, I Made
Agro Bali : Agricultural Journal Vol 8, No 2 (2025)
Publisher : Universitas Panji Sakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37637/ab.v8i2.2102

Abstract

Declining agricultural yields on drylands in Tejakula Subdistrict are largely attributed to poor soil management practices, highlighting the urgent need for comprehensive soil quality assessment. This study aims to evaluate soil quality, identify limiting factors, and map the spatial distribution of soil quality to guide appropriate land management strategies. The research was conducted from January to June 2024 across twelve sampling points in ten villages using a purposive sampling technique. Both disturbed and undisturbed soil samples were analyzed for physical, chemical, and biological indicators, including bulk density, porosity, soil texture, pH, C-organic, CEC, nutrients (N, P, K), and microbial biomass carbon (C-biomass). The Minimum Data Set (MDS) method and a weighted additive model were applied to calculate the Soil Quality Index (IKT). The results showed that all sampling sites were categorized as having very good soil quality, with IKT scores ranging from 16.3 to 19.6. The study concludes that although soil quality is generally high, targeted management interventions such as organic amendments and balanced fertilization are still necessary to address site-specific limiting factors and ensure land productivity.
Analysis of Agriculture Land Potential for Fruit Crops in Tejakula District, Buleleng Regency, Indonesia Artanaya, I Wayan; Trigunasih, Ni Made; Mega, I Made
Agro Bali : Agricultural Journal Vol 8, No 2 (2025)
Publisher : Universitas Panji Sakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37637/ab.v8i2.2009

Abstract

Tejakula District produces fruits that are very popular with the community, but production is not yet optimal because research on land suitability has never been carried out. The aims of this research are (1) to analyze land characteristics against land suitability classes, (2) to create maps of actual and potential land suitability classes, (3) to plan land use, and (4) to provide information systems. The research used a survey and Laboratorium from March to June 2024, taking soil samples. Actual land suitability class for horticultural fruits in Tejakula District is classified as marginally suitable(S3) to not suitable(N) with limiting factors of rainfall,  root condition, pH, N-total, P2O5, slope, and erosion hazard. Improvement efforts are made through soil processing, fertilizing with organic, Urea, and Phonska, improving irrigation, and making terraces. Based on the land suitability, the districts of Tejakula, as the priority, are developed to plant mango and mangosteen with quite suitable land(S2) with limiting factor temperature at Pacung, Sembiran, Bondalem, Tejakula, Tembok Village, and another Village moderately suitable(S2) with limiting factor root condition, slope. Kingfruit and Raspberryplant are quite suitable(S2) at Sembiran, Julah, Bondalem, Tejakula, Tembok village, with the limiting factor being temperature, and another Village is moderately suitable(S2) with the limiting factor being rainfall and root condition. Grape and avocado are quite suitable (S2) with the limiting factor of temperature at Pacung, Sembiran, Julah, Bondalem, Tejakula village, another village is moderately suitable(S2) with the limiting factor of root condition and slope. Land use planning by improving irrigation and applying organic fertilizer, Urea, Phonska, and making terracing.
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

Abstract

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.
Jeruk Keprok Tejakula: Potensi Pengembangan Berdasarkan Analisis Kesesuaian Lahan di Kecamatan Tejakula, Kabupaten Buleleng Trigunasih, Ni Made; Rai, I Nyoman; Wijaya, I Nyoman; Wijana, Gede; Wirya, Gusti Ngurah Alit Susanta; Widhianthini, Widhianthini; Yudha, I Kadek Wisma; Utama, I Wayan Eka Karya; Wiraatmaja, Wayan
Bali Membangun Bali: Jurnal Bappeda Litbang Vol 5 No 1 (2024): April 2024
Publisher : Badan Riset dan Inovasi Daerah Provinsi Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51172/jbmb.v5i1.328

Abstract

Tujuan: Penelitian yang dilakukan bekerja sama dengan Badan Riset Inovasi Daerah (Brida) Provinsi Bali ini bertujuan untuk mengetahui potensi pengembangan jeruk keprok Tejakula dan sebarannya berdasarkan analisis kesesuaian lahan aktual dan potensial serta arahan pengelolaan lahan, dalam rangka pengembangan jeruk keprok Tejakula. Metode penelitian: Penelitian dilaksanakan di Kecamatan Tejakula Kabupaten Buleleng mulai Mei 2023 sampai November 2023. Metode yang digunakan dalam penelitian ini adalah metode survei dan wawancara. Metode klasifikasi kesesuain lahan ditetapkan dengan cara mencocokkan (matching) data karakteristik/kualitas lahan dengan kriteria syarat tumbuh berdasarkan pedoman Ritung et al. Penilaian kesesuaian lahan dilakukan sampai pada tingkat unit. Hasil dan pembahasan: Hasil penelitian menunjukkan bahwa kelas kesesuaian lahan aktual untuk tanaman jeruk keprok Tejakula tergolong S3 (sesuai marginal) sampai N (tidak sesuai) dengan factor pembatas curah hujan, tekstur, bahan kasar, KTK, N-total, P-tersedia, lereng dan bahaya erosi. Faktor pembatas setelah diperbaiki maka didapatkan kesesuaian lahan potensial tergolong S1 (sangat sesuai) sampai S2 (cukup sesuai) dengan faktor pembatas tekstur tanah. Implikasi: Perbaikan kesesuaian lahan potensial dapat dilakukan dengan upaya perbaikan struktur tanah dengan penambahan pupuk organik. Arahan penggunaan lahan pada lokasi penelitian dengan mengatur waktu tanam, penambahan pupuk organik, pupuk Urea, Pupuk TSP/SP36 dan menerapkan teknik konservasi yaitu dengan terasering dan tanaman penguat teras.
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

Abstract

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

Abstract

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.
Co-Authors A.A.NYOMAN SUPADMA Abd. Rasyid Syamsuri Adelia Novita Marampa Agustina, I Komang Yudi AHMADI FAUZAN NUR RAHMAN AI Nyoman Sunarta Anak Agung Istri Agung Pramesti Apriadi, Putu Agung Artanaya, I Wayan Bintang Bayu Mahapati DEWA AYU CHYNTIA ANGELINA DEWA AYU PUTU SRI WAHYUNI DIBIA I N Dita Ayu Lorenza DJIAN NILAM SARI Dwiki Sinatrya Putra Fadilah Triani Putri Febriana, Anastasia GEDE WIJANA Girsang, Giyo Brem Dana Gusti Ngurah Alit Susanta Wirya I DEWA MADE ARTHAGAMA I DEWA MADE ARTHAGAMA I Gede Ketut Susrama I Ketut Suada I MADE ADNYANA I Made Mega I Made Mega I Made Mega I Nengah Netera Subadiyasa I Nyoman Dibia I NYOMAN MERIT I NYOMAN RAI I NYOMAN SUNARTA I NYOMAN WIJAYA I WAYAN NARKA I Wayan Narka I Wayan Narka I Wayan Narka I WAYAN NARKA I WAYAN SEDANA I.D.M. Arthagama I.N. Dibia I.N. Sunarta Ida Bagus Putu Bhayunagiri IMAS CAHYANINGTIYAS INDAYATI LANYA Irene Levina Yulianti Sinaga Isabella Tiurmauli Jencristy Gilberd Sitanggang Josua Sintong Martin Hutauruk KARTIKA DEWI OKTAFIANTI Kezia Angelia Febyna Putri M D DANA MADE SRI SUMARNIASIH MADE SRI SUMARNIASIH Moh Saifulloh MOH SAIFULLOH moh saifulloh, moh Nahak, Senon Apriyanto Nalle, Margiman S. NI KADEK ARY KRISNAYANTI Ni Luh Kartini Ni Made Ely Ariani NI NENGAH SONIARI NI NYOMAN ARI MAYADEWI NI PUTU UTARI HANDAYANI Nyoman Bintang Kartika Sari Pramudita, I Gede Made Prananda Yogathama Pribadi Putu Perdana Kusuma Wiguna Putu Perdana Kusuma Wiguna Putu Perdana Kusuma Wiguna RENI ANDRIANI NAIBAHO Risky Novelin Simatupang Sidabutar, Febrin SISKA MAILASARI SUMARNIASIH, MADE SRI T. Kusmawati TATIEK KUSMAWATI THRESIA ADHISYA SITORUS UTAMA, I WAYAN EKA KARYA VANDANI, YAYAN WIDHIANTHINI WIDHIANTHINI Wiraatmaja, Wayan WIYANTI WIYANTI YUDHA, I KADEK WISMA