Subjects -> AGRICULTURE (Total: 981 journals)
    - AGRICULTURAL ECONOMICS (93 journals)
    - AGRICULTURE (680 journals)
    - CROP PRODUCTION AND SOIL (120 journals)
    - DAIRYING AND DAIRY PRODUCTS (30 journals)
    - POULTRY AND LIVESTOCK (58 journals)

AGRICULTURE (680 journals)            First | 1 2 3 4     

Showing 401 - 263 of 263 Journals sorted alphabetically
Journal of Nuts     Open Access   (Followers: 1)
Journal of Plant Diseases and Protection     Hybrid Journal   (Followers: 1)
Journal of Plant Stress Physiology     Open Access  
Journal of Population Economics     Hybrid Journal   (Followers: 31)
Journal of Resources Development and Management     Open Access   (Followers: 3)
Journal of Rubber Research     Hybrid Journal   (Followers: 1)
Journal of Rural and Community Development     Open Access   (Followers: 1)
Journal of Science and Engineering     Open Access   (Followers: 1)
Journal of Science and Research     Open Access   (Followers: 2)
Journal of Science and Technology (Ghana)     Open Access   (Followers: 3)
Journal of Science Foundation     Open Access   (Followers: 1)
Journal of Scientific Agriculture     Open Access  
Journal of Social Sciences and Humanities Review     Open Access  
Journal of Sugar Beet     Open Access  
Journal of Sugarcane Research     Open Access   (Followers: 5)
Journal of Sustainable Society     Open Access   (Followers: 2)
Journal of the American Oil Chemists' Society     Hybrid Journal   (Followers: 2)
Journal of the Bangladesh Agricultural University     Open Access  
Journal of the Ghana Science Association     Full-text available via subscription   (Followers: 3)
Journal of the Indian Society of Coastal Agricultural Research     Open Access   (Followers: 3)
Journal of the Indian Society of Soil Science     Open Access   (Followers: 3)
Journal of the Saudi Society of Agricultural Sciences     Open Access  
Journal of the Science of Food and Agriculture     Hybrid Journal   (Followers: 15)
Journal of Vegetable Science     Hybrid Journal   (Followers: 6)
Journal of Wine Research     Hybrid Journal   (Followers: 3)
Jurnal Agroekoteknologi     Open Access  
Jurnal AGROSAINS dan TEKNOLOGI     Open Access  
Jurnal Agrotek Tropika     Open Access  
Jurnal Agroteknologi     Open Access  
Jurnal BETA (Biosistem dan Teknik Pertanian)     Open Access  
Jurnal Ilmiah Ilmu Terapan Universitas Jambi : JIITUJ     Open Access  
Jurnal Ilmiah Pertanian     Open Access  
Jurnal Ilmu dan Kesehatan Hewan (Veterinary Science and Medicine Journal)     Open Access   (Followers: 1)
Jurnal Ilmu Kehutanan     Open Access  
Jurnal Ilmu Kelautan Spermonde     Open Access  
Jurnal Ilmu-Ilmu Pertanian Indonesia     Open Access  
Jurnal Ilmu-Ilmu Peternakan     Open Access  
Jurnal Medika Veterinaria     Open Access  
Jurnal Pengabdi     Open Access  
Jurnal Pertanian Terpadu     Open Access  
Jurnal Rekayasa dan Manajemen Agroindustri     Open Access  
Jurnal Sain Veteriner     Open Access  
Jurnal Tanah Tropika     Open Access  
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering)     Open Access  
Jurnal Teknologi & Industri Hasil Pertanian     Open Access  
Jurnal Teknologi dan Industri Pertanian Indonesia     Open Access  
Jurnal Teknologi Pertanian     Open Access  
Jurnal Udayana Mengabdi     Open Access  
Jurnal Veteriner     Open Access   (Followers: 1)
Kansas Agricultural Experiment Station Research Reports     Open Access  
La Calera     Open Access  
La Granja : Revista de Ciencias de la Vida     Open Access  
La Técnica : Revista de las Agrociencias     Open Access  
Laimburg Journal     Open Access  
Landbohistorisk Tidsskrift     Open Access  
Landtechnik : Agricultural Engineering     Open Access  
Latin American Perspectives     Hybrid Journal   (Followers: 15)
Livestock Science     Hybrid Journal   (Followers: 5)
Magazín Ruralidades y Territorialidades     Full-text available via subscription   (Followers: 4)
Majalah Ilmiah Peternakan     Open Access   (Followers: 1)
Malaysian Journal of Sustainable Agriculture     Open Access  
Margin The Journal of Applied Economic Research     Hybrid Journal   (Followers: 1)
Maskana     Open Access  
Measurement : Food     Open Access   (Followers: 1)
Media, Culture & Society     Hybrid Journal   (Followers: 42)
Mesopotamia Journal of Agriculture     Open Access  
Meyve Bilimi     Open Access  
Middle East Journal of Science     Open Access  
Millenium : Journal of Education, Technologies, and Health     Open Access  
Mind Culture and Activity     Hybrid Journal   (Followers: 10)
Molecular Horticulture     Open Access   (Followers: 1)
Multiciencias     Open Access  
Mundo Agrario     Open Access  
Mustafa Kemal Üniversitesi Tarım Bilimleri Dergisi     Open Access  
Mustafa Kemal Üniversitesi Ziraat Fakültesi Dergisi     Open Access  
Mycopath     Open Access  
Mycorrhiza     Hybrid Journal   (Followers: 5)
National Institute Economic Review     Hybrid Journal   (Followers: 8)
Nativa     Open Access  
Nature Plants     Full-text available via subscription   (Followers: 15)
Nepal Journal of Science and Technology     Open Access  
Nepalese Journal of Development and Rural Studies     Open Access  
New Journal of Botany     Hybrid Journal   (Followers: 6)
New Zealand Journal of Agricultural Research     Hybrid Journal   (Followers: 2)
Nexo Agropecuario     Open Access  
Nigeria Agricultural Journal     Full-text available via subscription  
Nigerian Food Journal     Full-text available via subscription   (Followers: 2)
Nigerian Journal of Biotechnology     Open Access  
Nigerian Journal of Technological Research     Full-text available via subscription   (Followers: 1)
NJAS : Wageningen Journal of Life Sciences     Hybrid Journal  
Nutrient Cycling in Agroecosystems     Open Access   (Followers: 1)
Oilseeds and fats, Crops and Lipids     Open Access  
Open Agriculture Journal     Open Access  
Open Journal of Soil Science     Open Access   (Followers: 9)
Organic Agriculture     Hybrid Journal   (Followers: 5)
Organic Farming     Open Access  
OUSL Journal     Open Access  
Outlook on Agriculture     Full-text available via subscription   (Followers: 6)
Outlooks on Pest Management     Full-text available via subscription   (Followers: 2)
Oxford Development Studies     Hybrid Journal   (Followers: 36)
Oxford Economic Papers     Hybrid Journal   (Followers: 46)
Oxford Review of Economic Policy     Hybrid Journal   (Followers: 27)
Pacific Conservation Biology     Full-text available via subscription   (Followers: 2)
Paddy and Water Environment     Hybrid Journal   (Followers: 9)
Parallax     Hybrid Journal   (Followers: 8)
Park Watch     Full-text available via subscription   (Followers: 1)
Partners in Research for Development     Full-text available via subscription  
Pastoralism : Research, Policy and Practice     Open Access   (Followers: 2)
Pastos y Forrajes     Open Access  
Pastura : Journal Of Tropical Forage Science     Open Access  
Pedobiologia     Partially Free   (Followers: 2)
Pedosphere     Full-text available via subscription   (Followers: 1)
Peer Community Journal     Open Access   (Followers: 8)
Pelita Perkebunan (Coffee and Cocoa Research Journal)     Open Access  
Perspectivas Rurales Nueva Época     Open Access  
Pest Management Science     Hybrid Journal   (Followers: 3)
Phytopathology Research     Open Access  
Plant Knowledge Journal     Open Access   (Followers: 1)
Plant Phenome Journal     Open Access   (Followers: 1)
Plant Phenomics     Open Access   (Followers: 1)
Potato Journal     Open Access   (Followers: 3)
Potato Research     Hybrid Journal   (Followers: 2)
Practical Hydroponics and Greenhouses     Full-text available via subscription  
Precision Agriculture     Hybrid Journal   (Followers: 10)
PRIMA : Journal of Community Empowering and Services     Open Access  
Proceedings of the Vertebrate Pest Conference     Open Access  
Producción Agropecuaria y Desarrollo Sostenible     Open Access  
Professional Agricultural Workers Journal     Open Access  
Progress in Agricultural Engineering Sciences     Full-text available via subscription  
Progressive Agriculture     Open Access   (Followers: 1)
Quaderns Agraris     Open Access  
Rafidain Journal of Science     Open Access  
Rangeland Ecology & Management     Full-text available via subscription   (Followers: 4)
Rangelands     Full-text available via subscription   (Followers: 1)
Rangifer     Open Access  
Recent Research in Science and Technology     Open Access  
Recursos Rurais     Open Access  
Rekayasa     Open Access  
Renewable Agriculture and Food Systems     Hybrid Journal   (Followers: 15)
Reproduction and Breeding     Open Access  
Research & Reviews : Journal of Agricultural Science and Technology     Full-text available via subscription  
Research & Reviews : Journal of Agriculture Science and Technology     Full-text available via subscription  
Research Ideas and Outcomes     Open Access  
Research in Agriculture, Livestock and Fisheries     Open Access   (Followers: 1)
Research in Plant Sciences     Open Access  
Research in Sierra Leone Studies : Weave     Open Access  
Research Journal of Seed Science     Open Access  
Review of Agrarian Studies     Open Access  
Revista Bio Ciencias     Open Access  
Revista Brasileira de Agropecuária Sustentável     Open Access  
Revista Brasileira de Ciências Agrárias     Open Access  
Revista Brasileira de Higiene e Sanidade Animal     Open Access   (Followers: 1)
Revista Brasileira de Tecnologia Agropecuária     Open Access  
Revista Brasileira de Zootecnia     Open Access   (Followers: 1)
Revista Chapingo. Serie horticultura     Open Access  
Revista Ciencia y Tecnología El Higo     Open Access  
Revista Ciência, Tecnologia & Ambiente     Open Access  
Revista Ciencias Técnicas Agropecuarias     Open Access  
Revista Colombiana de Investigaciones Agroindustriales     Open Access  
Revista Cubana de Ciencia Agrícola     Open Access   (Followers: 2)
Revista de Agricultura Neotropical     Open Access  
Revista de Ciências Agrárias     Open Access  
Revista de Ciencias Agrícolas     Open Access  
Revista de Ciências Agroveterinárias     Open Access  
Revista de Direito Agrário e Agroambiental     Open Access  
Revista de Investigación en Agroproducción Sustentable     Open Access  
Revista de Investigaciones Altoandinas - Journal of High Andean Research     Open Access  
Revista de la Ciencia del Suelo y Nutricion Vegetal     Open Access  
Revista de la Facultad de Agronomía     Open Access  
Revista de la Facultad de Agronomía     Open Access  
Revista de la Universidad del Zulia     Open Access  
Revista Eletrônica Competências Digitais para Agricultura Familiar     Open Access  
Revista Iberoamericana de Bioeconomía y Cambio Climático     Open Access   (Followers: 1)
Revista Iberoamericana de las Ciencias Biológicas y Agropecuarias     Open Access  
Revista Iberoamericana de Tecnologia Postcosecha     Open Access  
Revista Iberoamericana de Viticultura, Agroindustria y Ruralidad     Open Access  
Revista Ingeniería Agrícola     Open Access  
Revista Investigaciones Agropecuarias     Open Access   (Followers: 6)
Revista Latinoamericana de Estudios Rurales     Open Access  
Revista Mexicana de Ciencias Agrícolas     Open Access  
Revista Mundi Meio Ambiente e Agrárias     Open Access  
Revista U.D.C.A Actualidad & Divulgación Científica     Open Access  
Revista Universitaria del Caribe     Open Access  
Revista Verde de Agroecologia e Desenvolvimento Sustentável     Open Access   (Followers: 2)
Revue Marocaine des Sciences Agronomiques et Vétérinaires     Open Access  
RIA. Revista de Investigaciones Agropecuarias     Open Access   (Followers: 1)
Rice     Open Access   (Followers: 1)
Rice Science     Open Access   (Followers: 1)
Rivista di Studi sulla Sostenibilità     Full-text available via subscription   (Followers: 1)
Rona Teknik Pertanian     Open Access  
RUDN Journal of Agronomy and Animal Industries     Open Access  
Rural China     Hybrid Journal   (Followers: 2)
Rural Sustainability Research     Open Access   (Followers: 2)
RURALS : Review of Undergraduate Research in Agricultural and Life Sciences     Open Access   (Followers: 1)
SAARC Journal of Agriculture     Open Access  
Sabaragamuwa University Journal     Open Access  
Sainteknol : Jurnal Sains dan Teknologi     Open Access  
Savana Cendana     Open Access  
Savannah Journal of Research and Development     Open Access  
Science and Technology Indonesia     Open Access  

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Rona Teknik Pertanian
Number of Followers: 0  

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ISSN (Print) 2085-2614 - ISSN (Online) 2528-2654
Published by Universitas Syiah Kuala Homepage  [19 journals]
  • Perencanaan Stabilitas Lereng Timbunan untuk Perbaikan Saluran Irigasi
           Sugih, Desa Cibedug, Kecamatan Ciawi, Kab. Bogor

    • Authors: Nurul Chayati, Feril Hariati, Alimuddin Alimuddin, Fadhila Muhammad Libasut Taqwa, Muhammad Ilham
      Pages: 1 - 12
      Abstract: Abstrak. Saluran irigasi Sugih yang terletak di Desa Cibedug, Kecamatan Ciawi, Kabupaten Bogor sudah tidak dapat berfungsi pasca terjadinya longsoran di kawasan tersebut pada akhir tahun 2020. Longsoran tersebut sampai saat ini belum dilakukan perbaikan. Ratusan hektar sawah di Kp. Turki Rt 01 Rw 03 Desa Cibedug dipastikan gagal panen pada musim ini. Saluran irigasi Sugih yang diandalkan oleh warga untuk mengairi sawahnya terputus akibat bencana longsor. Tujuan dari penelitian adalah menganalisis sifat fisis dan mekanis tanah di saluran irigasi Sugih Desa Cibedug, Kecamatan Ciawi Kabupaten Bogor serta melakukan analisis stabilitas lereng dengan Metode Bishop Disederhanakan (Simplified Bishop Method) dan menggunakan aplikasi Autocad 2018 untuk mendapatkan perencanaan stabilitas lereng dan timbunan tanah yang diperlukan. Hasil analisis sifat fisis, mekanis didapatkan nilai parameter tanah. Berat isi tanah kering (gdry) 13,60 kN/m3, berat isi (g) rata rata sebesar 2,18 gr/cm3, nilai sudut nilai geser tanah (f) sebesar 26,19˚ dan nilai lekatan antara partikel tanah kohesi (c) sebesar 0,09 kN/m2,pada software Autocad 2018 didapatkan dimensi lereng 1 : 1, volume galian sebesar 1.594 m3,timbunan sebesar 1.830,26 m3 dan luasan longsoran sebesar 1.000,30 m2. Berdasarkan perhitungan menggunakan Metode Bishop Disederhanakan didapatkan nilai faktor keamanan (safety factor) 1,83 sehingga lereng yang direncanakan tersebut stabil.Embankment Slope Stability Planning for Sugih Irrigation Channel Improvement, Cibedug Village, Ciawi District, Bogor RegencyAbstract. The Sugih irrigation channel which is located in Cibedug Village, Ciawi District, Bogor Regency is no longer functioning after the landslide occurred in the area at the end of 2020. Until now, the landslide has not been repaired. Hundreds of hectares of rice fields in Kp. Turki Rt 01 Rw 03, Cibedug Village is confirmed to have failed crops this season. The Sugih irrigation channel that residents rely on to irrigate their fields was cut off due to landslides. The purpose of the study was to analyze the physical and mechanical properties of the soil in the Sugih irrigation channel of Cibedug Village, Ciawi District, Bogor Regency and to analyze the slope stability using the simplified Bishop method and use the Autocad 2018 application to obtain the required slope stability and soil fill plan. The results of the analysis of physical and mechanical properties obtained soil parameter values. Dry soil fill weight (gdry) 13.60 kN/m3, bulk density (g) average of 2.18 g/cm3, angular value of soil shear value (f) of 26.19˚ and the value of coherence between cohesion soil particles (c) 0.09 kN/m2, in the Autocad 2018 software a 1: 1 slope dimension is obtained the excavation volume of 1,594 m3, an embankment of 1,830.26 m3 and landslide area of 1,000.30 m2. Based on calculations using the simplified Bishop Method, it is obtained the value of the safety factor (safety factor) 1.83 so that the planned slope is stable.

      PubDate: 2022-04-29
      DOI: 10.17969/rtp.v15i1.18959
      Issue No: Vol. 15, No. 1 (2022)
       
  • Efisiensi Teknologi Irigasi Sprinkler Di Lahan Kelompok Tani Kecamatan
           Tarakan Utara, Kota Tarakan

    • Authors: Sudirman Sirait, Dwi Santoso, Nurnita Sari, Sendi Hatta, Hendris Hendris
      Pages: 13 - 24
      Abstract: Abstrak. Pemberian air irigasi secara konvensional di lahan usaha tani menyebabkan penurunan nilai efisiensi air irigasi. Hal ini dapat mengakibatkan kehilangan air irigasi dan pemberian air irigasi yang tidak sesuai dengan kebutuhan tanaman. Penerapan teknologi irigasi sprinkler mampu meningkatkan efisiensi dan produktivitas air irigasi untuk memenuhi kebutuhan tanaman. Penelitian ini bertujuan untuk mengetahui efisiensi penerapan teknologi irigasi sprinkler pada lahan pertanian di Kecamatan Tarakan Utara Kota Tarakan. Penelitian ini terdiri atas beberapa tahapan yaitu analisa tanah lahan percobaan, koefisiensi keseragaman (CU) irigasi sprinkler, distribusi keseragaman (DU) irigasi sprinkler, efisiensi penyimpanan (Es) dan efisiensi penggunaan (Eap) irigasi sprinkler. Hasil penelitian menunjukan bahwa tanah lahan percobaan memiliki tekstur lempung berpasir. Efisiensi penerapan irigasi sprinkler tergolong dalam kondisi baik dengan nilai CU 89,18%, DU 82,79%, Es 75%, Eap 68%. The Efficiency Sprinkler Irrigation Technology On Agricultural Land In North Tarakan District, Tarakan CityAbstract. Provision of irrigation water conventionally on farmland. causes a decrease in the efficiency of irrigation water. This can result in loss of irrigation water and this is not suitable for crop needs. The application of sprinkler irrigation technology can increase irrigation efficiency and water productivity to meet plant needs. This study aimed to determine the efficiency of the application of sprinkler irrigation technology on agricultural land in North Tarakan District, Tarakan City. This research consisted of several stages, namely the soil analysis of experimental land, analysis of uniform coefficient (CU), analysis of the uniform distribution (DU), analysis of storage efficiency (Es), and efficiency of use (Eap). The results showed that the experimental land had a sandy loam texture. The efficiency of the application of sprinkler irrigation was in good condition with the value of CU 89.18%, DU 82.79%, Es 75%, and Eap 68%.

      PubDate: 2022-04-30
      DOI: 10.17969/rtp.v15i1.23360
      Issue No: Vol. 15, No. 1 (2022)
       
  • Model Rancangan Zero Runoff Sistem (ZROS) Integrasi Bangunan Penampung
           Hujan dan Sumur Resapan

    • Authors: Radius Pranoto, Ricky Ravsyan A, Anggi Nidya S, Djaka Suhirkam
      Pages: 25 - 37
      Abstract: Abstrak. Sebagian besar wilayah Indonesia memiliki potensi curah hujan yang tinggi rata-rata berkisar 2000 - 4000 mm/tahun.  Curah hujan merupakan salah satu sumber air bersih yang ekonomis dan bisa dimanfaatkan secara langsung. Namun sebaliknya, hujan juga akan merugikan dan menimbulkan masalah, seperti; genangan, banjir, longsor, erosi, sarang penyakit jika tidak dikelola dan dikendalikan dengan baik. Penelitian ini bertujuan untuk merancang model zero runoff sistem (ZROS) integrasi antara sarana detensi hujan dan sumur resapan air hujan (SRAH) untuk mengendalikan limpasan hujan dari atap gedung di lingkungan Kampus Politeknik Negeri Sriwijaya. Dari pengujian dperoleh nilai permeabilitas tanah  sebesar 1,874 cm/jam atau sekitar 0,45 m/hari. Simulasi dilakukan menggunakan data hujan harian tahun 2007-2018 pada beberapa dimensi model ZROS integrasi bak penampung (kapasitas 4,5 m – 12 m3) dan SRAH (kedalaman 2 m dan diameter 0,57 m – 0,7 m). Diketahui model ZROS integrasi bak penampung (kapasitas 4,5 m3) dan sumur resapan air hujan (kedalaman 2 m dan diameter 1,4 m) mampu mereduksi debit limpasan hingga 100 % (zero runoff) dari bidang tadah hujan per 100 m2. Rancangan model ZROS integrasi terdiri dari bak penampung segiempat terbuat dari beton atau pasangan batu bata dan sumur resapan air hujan berbentuk silinder dengan dasar dan dinding porous (dinding terbuat pasangan batu bata atau tanah kosong).Desain Model of Zero Runoff System (ZROS) Rainwater Storage Building and Well Recharge IntegratedAbstract. Most of the region of Indonesia has the potential for high rainfall with an average of 2000 - 4000 mm/year. Rainwater is one source of clean water that’s economical cost and could be used directly. On the other hand, the rain will be detrimental and cause many problems, such as; puddles, floods, landslides, erosion, and nests of disease if not managed and controlled properly. The purpose of this study was to design a zero runoff system (ZROS) model integration between rain detention facilities and rainwater infiltration wells to control rain runoff from the roof of the building on the Sriwijaya State Polytechnic Campus. From the test, the soil permeability value is 1,874 cm/hour or about 0,45 m/day. The simulation was carried out using daily rainfall data for 2007-2018 on several dimensions of the ZROS model integration of the reservoir (capacity 4,5 – 12 m3) and infiltration wells (depth 2 m and diameter 0,57 m– 0,7 m). The results show that the ZROS model of the integration of the reservoir (capacity 4,5 m3) and rainwater infiltration wells (depth 2 m and diameter 1,4 m) were able to reduce runoff up to 100% (zero runoff) from rainfed area per 100 m2. The design of the integrated ZROS model consists of a rectangular reservoir made of concrete or masonry and a cylindrical infiltration well with a porous base and walls (walls made of masonry or vacant soil).
      PubDate: 2022-04-30
      DOI: 10.17969/rtp.v15i1.23395
      Issue No: Vol. 15, No. 1 (2022)
       
  • Evaluasi Kinerja Sub Das Krueng Jreu Kabupaten Aceh Besar

    • Authors: Khairun Purgawa, Hairul Basri, Syahrul Syahrul
      Pages: 38 - 53
      Abstract: Abstrak. Dampak perubahan alih fungsi lahan merupakan kejadian di alam yang perlu dipahami untuk menentukan tindakan yang perlu dilakukan di waktu yang akan datang. Strategi pengelolaan DAS masih membutuhkan suatu inovasi pendekatan hidrologi dan lahan untuk memperbaiki situasi DAS. Penelitian ini bertujuan untuk mengevaluasi kinerja  Sub DAS Krueng Jreu Berdasarkan Permenhut P.61 tahun 2014 tahun tentang Monitoring dan Evaluasi Pengelolaan Daerah Aliran Sungai yang mencakup karakteristik Lahan dan karakteristik hidrologi. Hasil penelitian menunjukan persentase lahan kritis yaitu 2,37% (0,023723 ha), Persentase persentase penutupan vegetasi yaitu 78,61% (18250,64) ha, Indeks Erosi sebesar 0,60, Koefisisien Rejim Aliran (KRA) sebesar 26,62  Koefisien Aliran Tahunan (KAT) didapatkan hasil sebesar 0,056, Muatan Sedimen didapatkan hasil 5,02 ton/ha/tahun, frekuensi banjir adalah 1 kali dalam kurun waktu lima tahun, Indeks Penggunaan Air sebesar 22917,30  m3/thn termasuk dalam kelas sangat baik (0,5). Berdasarkan hasil  skoring 8 Sub kriteria  evaluasi kinerja Sub DAS Krueng Jreu yang meliputi Penggunaan Lahan dan Tata Air maka didapatkan hasil akhir senilai 37,75 dengan katagori sangat baik yang berarti kondisi DAS dalam keadaan sangat baik jika di lihat dari penggunaan lahan dan tata air.Performance Evaluation of Krueng Jreu Sub-watershed, Aceh Besar DistrictAbstract. The impact of changes and land-use changes caused is an event in nature that needs to be understood to determine the actions that need to be taken in the future. The watershed management strategy still requires innovation to improve the watershed situation. This study aims to determine the performance of the Krueng Jreu sub-watershed based on the Regulation of the Minister of Forestry P.61 of 2014 concerning Monitoring and Evaluation of Watersheds which includes hydrological characteristics and characteristics. The results showed that critical land was 2.37% (0.023723 ha), the percentage of vegetation cover percentage was 78.61% (18250.64) ha, the Erosion Index was 0.60, the Flow Regime Coefficient (KRA) was 26.62 The Annual Flow Coefficient (KAT) yields 0.056, Sediment Load yields 5.02 tons/ha/year, the frequency of flooding is 1 time within five years, the Water Use Index is 22917.30 m3/yr included in the very good class. (0.5). Based on the scoring of 8 Sub Criteria for evaluating the performance of the Krueng Jreu Watershed which includes Land Use and Water Management, the final result is 37.75 with a very good category which means the watershed condition is in very good condition when viewed from land use and water management.  
      PubDate: 2022-04-30
      DOI: 10.17969/rtp.v15i1.21607
      Issue No: Vol. 15, No. 1 (2022)
       
  • Analisis Indeks Kekeringan Hidrologi DAS Krueng Aceh (Studi Kasus Sub DAS
           Krueng Jreue dan Sub DAS Krueng Khee)

    • Authors: Attabari Aldin, Hairul Basri, Syahrul Syahrul
      Pages: 54 - 63
      Abstract: Abstrak.  Luas Sub DAS Krueng Jreue 23.218,06 Ha dan Sub DAS Krueng Khee 9.599,66 Ha. Berdasarkan hasil kajian bahwa luas vegetasi tutupan lahan semakin berkurang setiap tahunnya dimana ditandai dengan tingginya nilai fluktuasi debit sehingga mengakibatkan banjir pada musim hujan dan kekeringan pada musim kemarau. Tujuan penelitian adalah untuk mengetahui nilai ambang batas kekeringan hidrologi di Sub DAS Krueng Jreue dan Sub DAS Krueng Khee dan indeks kekeringan hidrologi di Sub DAS Krueng Jreue dan Sub DAS Krueng Khee. Penelitian ini menggunakan metode ranking Weibull dimana ditentukan nilai ambang batas Q50 dan Q80, dihitung defisit dan durasi dan kemudian ditentukan nilai indeks kekeringan hidrologi. Nilai ambang batas Sub DAS Krueng Jreue adalah 0,067 m3/s dan Sub DAS Krueng Khee 0,181 m3/s. Defisit Sub DAS Krueng Jreue tahun 2014 adalah tertinggi dengan angka 0,401 m3/s dengan durasi kering tujuh bulan dan Sub DAS Krueng Khee tahun 2012 adalah tertinggi dengan angka -0,715 m3/s dengan durasi kering enam bulan. Indeks kekeringan hidrologi di Sub DAS Krueng Jreue tahun 2015 adalah tertinggi dengan nilai 0,0629 m3/s dan indeks kekeringan hidrologi di sub DAS Krueng Khee tahun 2011 adalah tertinggi dengan nilai 0,3282 m3/s.An Analysis of The Krueng Aceh’s Hydrological Drought Index  (A Case Study of The Sub Watershed Krueng Jreue and Krueng Khee)Abstract.  The area of the Krueng Jreue Sub-watershed is 23,218.06 Ha and the Krueng Khee Sub-watershed is 9,599.66 Ha. Based on the results of the study that the area of land cover vegetation decreases every year which is indicated by the high value of discharge fluctuations, resulting in flooding in the rainy season and drought in the dry season. The purpose of this study was to determine the threshold value for hydrological drought in the Krueng Jreue Sub-watershed and Krueng Khee Sub-watersheds and the hydrological drought index in the Krueng Jreue Sub-watershed and Krueng Khee Sub-watersheds. This study uses the Weibull ranking method where the threshold values for Q50 and Q80 are determined, the deficit and duration are calculated and then the hydrological drought index value is determined. The threshold value for the Krueng Jreue Sub-watershed is 0.067 m3/s and the Krueng Khee Sub-watershed is 0.181 m3/s. The Krueng Jreue Sub-watershed deficit in 2014 was the highest at 0.401 m3/s with a dry duration of seven months and the Krueng Khee Sub-watershed in 2012 was the highest at -0.715 m3/s with a dry duration of six months. The hydrological drought index in the Krueng Jreue Sub-watershed in 2015 was the highest with a value of 0.0629 m3/s and the hydrological drought index in the Krueng Khee Sub-watershed in 2011 was the highest with a value of 0.3282 m3/s. 
      PubDate: 2022-05-06
      DOI: 10.17969/rtp.v15i1.21721
      Issue No: Vol. 15, No. 1 (2022)
       
  • Adsorpsi Pb Menggunakan Karbon Aktif dari Bambu Kuning (Bambusa Vulgaris
           Striata) Teraktivasi KOH

    • Authors: Ida Hasmita, Herlina S. Manap, Eka Marya Mistar
      Pages: 64 - 70
      Abstract: Abstrak. Karbon aktif berbahan baku bambu kuning (Bambusa vulgaris striata) dipreparasi dengan KOH aktivasi untuk menyerap Timbal (Pb). Penelitian ini bertujuan untuk mengkaji daya adsorpsi Pb pada karbon aktif. Proses adsorpsi dilakukan dengan mengalirkan larutan Pb melewati unggun yang berisi karbon aktif. Variasi laju alir yang diaplikasikan adalah 5 mL/menit dan 10 mL/menit. Struktur mikro karbon aktif diamati dengan Scanning Electron Microscope (SEM). Hasil penelitian yang diperoleh menunjukkan daya adsorpsi Pb tertinggi pada laju alir 5 mL/menit, yaitu pada menit ke 100 menghasilkan konsentrasi effluent 5,82 mg/L.Adsorption of Pb using activated carbon from Yellow Bamboo (Bambusa vulgaris striata) using KOH activationAbstract. Activated carbon was prepared from Yellow bamboo (Bambusa vulgaris striata) via KOH activation to adsorb Pb ions from aqueous solutions. This research aimed to determine Pb adsorption using activated carbon. The adsorption process was performed by flowing the Pb solution through the fixed-bed column filled with the prepared activated carbon. The applied flow rate varied between 5 mL/min and 10 mL/min. The microstructure of activated carbon was observed using Scanning Electron Microscope (SEM). The obtained results showed that the highest Pb concentration at 5 mL/min was 5.82 mg/L.
      PubDate: 2022-05-24
      DOI: 10.17969/rtp.v15i1.22733
      Issue No: Vol. 15, No. 1 (2022)
       
  • Komparasi Dataset Suhu Udara Berbasis Penginderaan Jauh Dalam Mengestimasi
           Suhu Udara Bulanan di Provinsi Papua Barat

    • Authors: Arif Faisol, Bertha Ollin Paga, Baso Daeng
      Pages: 71 - 84
      Abstract: Abstrak. Pada umumnya data suhu udara diperoleh dari hasil pengamatan pada stasiun iklim Badan Meteorologi, Klimatologi, dan Geofisika (BMKG). Metode ini dapat digunakan untuk merepresentasikan suhu udara suatu wilayah yang berada pada radius ≤ 10 km dari lokasi stasiun iklim, sehingga dibutuhkan sebuah solusi alternatif untuk mendapatkan data suhu udara yang dapat merepresentasikan wilayah yang lebih luas, salah satunya memanfaatkan dataset suhu udara berbasis penginderaan jauh. Penelitian ini bertujuan membandingkan performa sejumlah dataset suhu udara berbasis penginderaan jauh, yaitu Climatic Research Unit gridded Time Series (CRU-TS), Climatologies at High Resolution for the Earth Land Surface Areas (CHELSA), dan TerraClimate dalam mengestimasi curah hujan bulanan di Provinsi Papua Barat. Penelitian ini terdiri atas 6 (enam) tahapan utama, yaitu; (1) inventarisasi data yang bertujuan mengumpulkan dataset suhu udara dan data suhu udara hasil perekaman pada Automatic Weather Station (AWS) tahun 1996 sampai tahun 2019, (2) ekstraksi data, (3) screening data untuk mengganti nilai ekstrim dengan nilai rata-rata, (4) evaluasi data untuk membandingkan dataset dengan data AWS, (5) komparasi data untuk membandingkan performa dataset, dan (6) rekomendasi yang bertujuan untuk menentukan dataset yang paling sesuai untuk digunakan di Provinsi Papua Barat. Hasil penelitian menunjukkan bahwa CHELSA, TerraClimate, dan CRU-TS sangat akurat dalam mengestimasi suhu udara bulanan di Provinsi Papua Barat yang ditunjukkan dengan nilai RBIAS < 0,1. Disamping itu CHELSA, TerraClimate, dan CRU-TS memiliki tingkat keeratan hubungan yang sedang terhadap data AWS dengan nilai r = 0,36 – 0,68. Sehingga TerraClimate, CHELSA, dan CRU-TS dapat digunakan sebagai solusi alternatif untuk mendapatkan informasi suhu udara bulanan di Provinsi Papua Barat.Comparison of Remote Sensing-Based Air Temperature Dataset in Estimating Monthly Air Temperature in West PapuaAbstract. Air temperature is one of the important components in agriculture. Generally, air temperature data is obtained from climate stations of the Meteorological, Climatological, and Geophysical Agency (BMKG). These methods represented an area within a radius of 10 km from the climate station, therefore an alternative solution is needed for a larger area. The utilization of the air temperature dataset is one alternative solution. This research aims to compare Climatic Research Unit gridded Time Series (CRU-TS), Climatologies at High Resolution for the Earth Land Surface Areas (CHELSA), and TerraClimate as an air temperature dataset in estimating the monthly temperature in West Papua. The main stages in this research are data inventory, data extraction, data screening, data evaluation, data comparison, and data recommendation. The data used in this research are CRU-TS, TerraClimate, CHELSA, and local AWS data recording from 1996 to 2019. The research showed that CRU-TS, TerraClimate, and CHELSA are very accurate in estimating the monthly temperature in West Papua as indicated by RBIAS < 0.1. Furthermore, CRU-TS, TerraClimate, and CHELSA have a moderate correlation with AWS data in estimating monthly air temperature with r= 0.36 - 0.68. Therefore, CRU-TS, TerraClimate, and CHELSA can be used as an alternative solution to obtain monthly air temperature information in West Papua.    
      PubDate: 2022-05-24
      DOI: 10.17969/rtp.v15i1.25319
      Issue No: Vol. 15, No. 1 (2022)
       
  • Peningkatan Mutu Beras Giling Menggunakan Zeolit Pada Berbagai Ketebalan
           Lapisan Pengeringan Gabah

    • Authors: Niken Rani Wandansari, Arum Pratiwi, Dwi Purnomo, Latarus Fangohoy
      Pages: 85 - 96
      Abstract: Abstrak. Penelitian ini bertujuan untuk mengetahui kualitas gabah yang dihasilkan pada berbagai kombinasi ketebalan tumpukan gabah dan penambahan jumlah zeolit pada proses pengeringan, serta kualitas beras giling yang dihasilkan berdasarkan persentase kadar air, butir beras kepala dan butir beras patah. Metode yang digunakan dalam penelitian ini adalah metode ekperimental menggunakan box dryer, sedangkan design penelitian yang digunakan adalah Rancangan Acak Kelompok Faktorial dengan tiga kali ulangan pada setiap kombinasi perlakuan. Hasil penelitian menunjukkan bahwa semakin tipis lapisan gabah, maka proses pengeringan menjadi lebih cepat. Demikian pula dengan semakin banyak zeolit yang ditambahkan, maka proses pengeringan membutuhkan waktu yang lebih singkat. Perlakuan lapisan gabah 30 cm dan komposisi zeolit 10% mampu memberikan waktu pengeringan tercepat, yaitu sembilan jam dengan rerata kadar air gabah 13,5%. Ketebalan lapisan gabah dan penambahan zeolit secara signifikan mempengaruhi kualitas fisik beras giling, meliputi persentase kadar air, butir beras kepala, beras patah, beras menir dan butir gabah. Perlakuan ketebalan lapisan gabah 30 cm dengan persentase komposisi zeolit 10% memberikan nilai persentase butir beras kepala tertinggi, yaitu 92,5% dan butir beras patah terendah, yaitu 4,1%. Sebagian besar perlakuan menghasilkan beras dengan kualitas komersial dengan mutu menengah.Improving The Quality Of Milled Rice Using Zeolite At Various Levels Of Paddy Drying Layer Thickness.Abstract. The aim of this study was to determine the quality of the grain produced at various combinations of the paddy pile thickness and the addition of the amount of zeolite in the drying process, as well as the quality of milled rice produced based on the percentage of water content, head rice grains, and broken rice grains. The method used in this research is an experimental method using a box dryer. While the research design used was a factorial randomized block design with three replications for each treatment combination. The results showed that the thinner the layer of paddy, the faster the drying process. Likewise, the more zeolite was added, the drying process took a shorter time. Treatment of 30 cm paddy layer and 10% zeolite composition was able to provide the fastest drying time, which was nine hours with an average grain moisture content of 13.5%. The thickness of the paddy layer and the addition of zeolite significantly affected the physical quality of milled rice, including the percentage of moisture content, head of rice grains, broken rice, groats, and grain. Treatment of the thickness of the 30 cm grain layer with 10 % zeolite composition percentage gave the highest grain percentage value of rice heads, namely 92.5%, and the lowest broken rice grains, namely 4.1%. Most of the treatments produced rice of medium quality commercial quality. 
      PubDate: 2022-05-29
      DOI: 10.17969/rtp.v15i1.24818
      Issue No: Vol. 15, No. 1 (2022)
       
  • Pemanfaatan Pektin Kulit Pisang Kepok (Musa paradisiaca L.) Untuk
           Pembuatan Kemasan Edible film Dengan Penambahan Gliserol Sebagai
           Plasticizer

    • Authors: Ratna Ratna, Maiful Hari, Syafriandi Syafriandi
      Pages: 97 - 107
      Abstract: Abstrak. Edible film merupakan lapisan tipis yang bersifat biodegradable dan dapat diaplikasikan pada bahan pangan sebagai pelindung antara makanan dengan lingkungan. Penelitian ini bertujuan untuk mengetahui pengaruh konsentrasi gliserol terhadap karakteristik edible film pektin kulit pisang kepok. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) non faktorial, di mana faktor konsentrasi terdiri dari 3 (tiga) taraf, yaitu G1= 1%, G2= 2%, dan G3= 3%. Dengan demikian 3 perlakuan konsentrasi gliserol dengan 3 kali ulangan sehingga diperoleh 9 satuan percobaan. Hasil penelitian menunjukkan bahwa terjadi peningkatan ketebalan edible film seiring peningkatan konsentrasi gliserol, di mana ketebalan pada konsentrasi gliserol 1%, 2%, dan 3% yaitu 0,13 mm, 0,21 mm, dan 0,26 mm secara berturut-turut. Nilai laju transmisi uap air dari variasi konsentrasi gliserol 1%, 2%, dan 3% yaitu 1,882 g/m2/jam, 2,601 g/m2/jam, 3,359 g/m2/jam. Nilai kuat tarik dengan variasi konsentrasi gliserol 1%, 2%, dan 3% yaitu 22,3 kgf/cm2, 21 kgf/cm2 dan 22,3 kgf/cm2. Nilai elongasi dari variasi konsentrasi gliserol 1%, 2%, dan 3% yaitu  284,90 %, 406,47 %  dan 530,00 %. Adapun  nilai modulus young dari variasi konsentrasi gliserol 1%, 2%, dan 3% yaitu 0,76 MPa, 0,51Mpa dan 0,41Mpa. Perlakuan terbaik berdasarkan Japanese industrial standard JIS (1975) adalah perlakuan gliserol dengan konsentrasi 1%. Dari hasil uji sidik ragam ANOVA  perlakuan variasi konsentrasi gliserol tidak berpengaruh nyata terhadap ketebalan, laju transmisi uap air, kuat tarik, elongasi dan modulus young.The Utilization of Pectin Banana Pain (Musa paradisiaca L.) for The Making of Edible film Packaging With Additional Glycerol as a PlasticizerAbstract. The edible film is a thin layer that is biodegradable and can be applied to foodstuffs as a barrier between food and the environment. This study aims to determine the effect of glycerol concentration on the characteristics of the edible film pectin of kepok banana peels. This study used a non-factorial Completely Randomized Design (CRD), where the concentration factor consisted of 3 (three) levels, namely G1 = 1%, G2 = 2%, and G3 = 3%. Thus 3 treatments of glycerol concentration with 3 replications to obtain 9 experimental units. The results obtained thickness values with variations in the concentration of glycerol (1%, 2%, 3%) namely 0.13 mm, 0.21 mm, and 0.26 mm. The value of the water vapor transmission rate of variations in glycerol concentration (1%, 2%, 3%) is 1.882 g/m2/hour, 2.601 g/m2/hour, 3.359 g/m2/hour. The tensile strength values with variations in glycerol concentration (1%, 2%, 3%) were 22.3 kgf/cm2, 21 kgf/cm2 and 22.3 kgf/cm2. The elongation values of variations in glycerol concentration (1%, 2%, 3%) were 284.90%, 406.47% and 530.00%. Young's modulus values from variations in glycerol concentration (1%, 2%, 3%) were 0.76 MPa, 0.51Mpa and 0.41Mpa. The best treatment based on the Japanese industrial standard JIS (1975) was the glycerol treatment with a concentration of 1%. From the variance ANOVA test results, the results obtained have no significant effect on thickness, water vapor transmission rate, tensile strength, elongation, and modulus young.
      PubDate: 2022-05-29
      DOI: 10.17969/rtp.v15i1.23820
      Issue No: Vol. 15, No. 1 (2022)
       
 
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