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All Journal IAES International Journal of Artificial Intelligence (IJ-AI) Journal of Educational, Health and Community Psychology Jurnal Ilmiah Mahasiswa FEB Sosial Budaya Jurnal Sumberdaya Alam dan Lingkungan Jurnal Keteknikan Pertanian Tropis dan Biosistem Jurnal Teknologi Pertanian LINGUAL: Journal of Language and Culture Jurnal Kajian Informasi & Perpustakaan Jurnal Sains dan Teknologi Pangan Jurnal Pertanian Terpadu Syntax Literate: Jurnal Ilmiah Indonesia TIJAB (The International Journal of Applied Business) JURNAL PENDIDIKAN TAMBUSAI Brikolase : Jurnal Kajian Teori, Praktik dan Wacana Seni Budaya Rupa Jurnal Common JOURNAL OF CHEMISTRY AND EDUCATION (JCAE) Journal of Food and Culinary JURNAL LENSA MUTIARA KOMUNIKASI Altasia : Jurnal Pariwisata Indonesia Journal of Tourism Destination and Attraction Dialektika: Jurnal Ekonomi dan Ilmu Sosial Management Studies and Entrepreneurship Journal (MSEJ) Jurnal Kolaborasi Resolusi Konflik Community Development Journal: Jurnal Pengabdian Masyarakat Jurnal Layanan Masyarakat (Journal of Public Service) Jurnal Abdidas Journal of Economics and Business UBS Jurnal Kepariwisataan JUTECH : Journal Education and Technology Indonesian Journal of Tourism and Leisure ProBisnis : Jurnal Manajemen COMSERVA: Jurnal Penelitian dan Pengabdian Masyarakat Envirotek : Jurnal Ilmiah Teknik Lingkungan Journal of Innovation Research and Knowledge International Journal of Applied Sciences in Tourism and Events Digital Transformation Technology (Digitech) Jurnal Pengadaan Barang dan Jasa Jurnal Ilmiah Hospitality Management INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Nawasena: Jurnal Ilmiah Pariwisata Jurnal Ilmiah MEA (Manajemen, Ekonomi, dan Akuntansi) West Science Interdisciplinary Studies Riset Ilmu Manajemen Bisnis dan Akuntansi West Science Interdisciplinary Studies West Science Social and Humanities Studies Jurnal Hukum dan Keadilan RESLAJ: Religion Education Social Laa Roiba Journal Mandalika Journal of Community Services JURNAL REKAYASA KIMIA & LINGKUNGAN Jurnal Ilmiah Pariwisata International Journal of Entrepreneurship and Tourism
Bambang Suharto
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Journal : Jurnal Teknologi Pertanian

 1 
Implementation Fractal Theory to Determine Water Retention Curve on Entisol No Tillage Wirosoedarmo, Ruslan; Suharto, Bambang; Irawan, Cendra
Jurnal Teknologi Pertanian Vol 10, No 3 (2009)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

The analysis of soil characteristics are time consuming, cost highly, and the results are qualitative. Analysis of soil characteristics might be conducted through the fractal theory. Fractal description of soil based on the pore space and the distribution of particles is a useful way to make quantitative analysis of soil structure.D value is determined by a mathematical equation of the curve of water retention. The water retention curve is obtained from some values of D and then compared to the data from entisol soil analysis. The results are calculated based on the size and the mass class cumulative value obtained from fractal dimension (Dm) estimation of 1.87 ± 0.225.  The water retention curve models are obtained with a quite good value at D = 2.052.  There is a converse relationship between water content and water suction.  The greater water content, the less water suction, and vice versa.   This is shown in the regression linier model equation of y = 12744x2 - 8666x + 1239.6 with a determination coefficient R2 = 0.8252.  The value of water retention from the model is approximate the analytical data as shown in the linear regression from analysis of soil y = 12910x2 - 8751.9x + 1222 with determination coefficient R2 = 0.805.  The linear regression equation of the model is y = 12744x2 - 8666x + 1239.6 with a determination coefficient R2 = 0.8252.Key word: fractal theory, water retention, entisol soil
Design of Sprinkler Irrigation for Orchids Kurniati, Evi; Suharto, Bambang; Afrilia, Tunggal
Jurnal Teknologi Pertanian Vol 8, No 1 (2007)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

The export of orchids increased from about US$ 3 million in 1999 to US$ 4,1 million in 2002. An improvement in any aspects of its culture techniques is important to increase its productivity. One of the techniques need to develop is related to the irrigation system. The research was conducted to develop a sprinkle type irrigation system for Cattelya orchids of 6-7 years old, cultured in Batu, Malang. The system was then designed, constructed and tested.   It was found that, the daily water requirement of this particular orchid was 0.12 L. Based on the water requirement, the irrigation system was designed and constructed. At a design level, the measurements showed that the daily discharges of the sprinkle, lateral pipe and main pipe were 0.49 L, 4.88 L and 24.37 L respectively. The total head loss resulted from the sprinklers, lateral pipe, main pipe, 90 angles and joints was 2.46 x 10-4 m, at a total head of pump of 10.00024631 m. The results of the performance tests on the constructed system showed that the discharge levels were lower than that at the designed level. It was probably due to the pump efficiency which was recorded as low as 29.31%. It was found that at 25 Psi, the water sprayed diameter was 0.8 m, with the respective values of the uniformity coefficient, uniformity distribution, PELQ and AELQ were 88.76%, 57.87%, 10.53% and 8.53%. The total cost needed for the irrigation system was 4,197.22 rupiahs/m2.Key words: design, sprinkler irrigation, orchid
Rate Infiltration Evaluation on Several Land Uses Using Infiltration Method of Horton at Sub DAS Coban Rondo Kecamatan Pujon Kabupaten Malang Wirosoedarmo, Ruslan; Suharto, Bambang; Hijriyati, Wulan Ruhunnatiqah
Jurnal Teknologi Pertanian Vol 10, No 2 (2009)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

The research was done on October until November 2008 in Sub DAS Coban Rondo Pujon Kabupaten Malang.  The aim of the research was to get information about infiltration rate at several land uses, to understand the relationship between the infiltration constant and the factors that influence infiltration process, and to know when infiltration method of Horton can be used to estimate infiltration.The measurement of infiltration in Sub DAS Coban Rondo used double ring infiltrometer with three treatments on eucalyptus land, corn land, and empty land. The removal sample soil was performed to know soil physical characteristic, and later to know the relationship between infiltration constant and soil physical characteristic. The result of this research indicated that at the beginning, infiltration value at eucalyptus land was 13.200 mm/minute, while at corn land was 15.800 mm/minute and 15.133 mm/minute for empty land.  The relationship between infiltration constant and bulk density was the high value of infiltration constant was followed by the low bulk density.  The high infiltration constant was followed by high space pore, water content, and organic matter.  Based on the calculation using Infiltration Method of Horton and infiltration in Sub DAS Coban Rondo with t-test there was no obvious difference at level of 99% with the result that Infiltration Method of Horton can be used to estimate infiltration process.         Keywords: infiltration, land use, infiltration method of Horton
Financial Evaluation Study on Maintenance Project of Irrigation Facilities (Case Study on Sumber Kedung Kandang Irrigation Sector, Kademangan Village, Gondang Legi, Malang) Suharto, Bambang; Wirosoedarmo, Ruslan; Kurniawan, Achmad
Jurnal Teknologi Pertanian Vol 2, No 1 (2001)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

Irrigation development as a completed process, need monitoring and evaluation mechanism. It is use to help and to learn development dynamics. This research aimed for financial evaluation of irrigation project and to know economic efficiency of maintenance and operation irrigation facilities. Financial evaluation study did in Sumber Kedung Kandang irrigation sector, Kademangan village on November 2000. Completely randomized sampling did on 40 : 60 proportion, 95% probability limit and standard error 15%. From this condition, respondent must be interviewed is 41 person. This result showed production increase after irrigation facilities established, i.e. 5 – 7%. Financial evaluation showed it is feasible project, from the IRR value, i.e. 12% and the NPV value, i.e. Rp. 2.041.687.650,31. The BEP time of irrigation structure is 5 years, 6 months, and 11 days. The depreciation of it is Rp. 420.000 on 25 years period and residue value is Rp. 4.500.000. the operation and maintenance activities economically good enough, with IPL value after project increase for corn, sugar cane and rice from 0,10 to 0,11; 0,0127 to 0,0161 and 0,059 to 0,069 respectively.   Keywords: irrigation facilities, financial evaluation, irrigation development
Co-Authors Achmad Kurniawan Afifa, Nisa Batrisiyah Aflahah Ramadhani Nidia Saputri Ahmat Farichi Alda A, Febriana Alexander Tunggul Sutanhaji Aly, Muhammad Nilzam Alya Farras Azzahra Amrullah, Ata Ananda, Rahmah Rizqi Andria Kusuma, Vicky Angelia Setya Lukita Ardianto, Kiara Dwiva Arin Saumi Fortuna Armita, Aulliya Dwi Asminar Mokodongan Astutik, Mira Carera Atiek Winarti Aulia Nur Mustaqiman Aulia Nur Mustaqiman Aurellya Rahmada Dewinta Averil Rorizanda Azzahra, Alya Farras Bambang Rahadi Bambang Rahadi Bambang Rahadi Widiatmono Bantulu, Lisna Bascha, Umi F Bascha, Umi Farichah Bintoro Wardiyanto, Bintoro Cendra Irawan Desnithalia, Farisa Alyani Dewi, Liliya Dian Yulie Reindrawati Dina Sulistyaningrum Dwitik Winar Rahayu Eka Lestari Evi Kurniati Evi Kurniati Evi Kurniati Fadita Dwi Medina Fahmi Alpha Yanitra Fajri Anugroho, Fajri Fathurrahman, Dzaki Fauzia Rohmatul Laili Firdaus, Aji Akbar Fransisco, Wawan Gagas Gayuh Aji, Gagas Gayuh Ghulam Arsyad Addibi Gusminanti Kasdi Handaru B Cahyono Harji, Laisya putri Hasanah, Fatmawati Uswatun Ikhroma Anbilqis, Naily Iman Teguh Widiantoro Isnaini, Santi Isnainy, Santi J. Bambang Rahadi J. Bambang Rahadi W. Jiwangga Hadi Nata Judijanto, Loso Junaidi Junaidi Kaligis, Carlita Grace Caesaria Kalingga Wenna Ferliqueena Paramitha Kamelia Arifah Karin Sufi Permatasari Kiara Dwiva Ardianto Kirana, Angkita Wasito Kristanto, Damar Kristanto, Damar Kurniawan, Ramdhan Laksmi, Luh Putu Gita Lestari, Adelia Budi Lestari, Qatrunnada Liliya Dewi S. Liliya Dewi Susanawati Liliya Dewi Susanawati Lina Suhendarwati Lukita, Angelia Setya Mailarangan, Kardevilla Ferina Mardika, Hana Angriyani Marjo, Tyas Roro Anggraini Kyai Masrur Maulidy, Ahmad Maulana, Shoffan Maulidy, Ahmad Masrur Maurisia Putri Permatasari Medina, Fadita Dwi Mentari Kinasih Miladyah, Rizka Milka Pasulu Moh Ali, Moh Mohammad Habibi Surya Buwana Mohammad Misbhahul Anam MS Monica, Florensia Yuke Muhammad Kusasi Muhammad Kusasi, Muhammad Mustaqiman, Aulia Nur Nabila, Ilsa Nada, Sheila Anindia Qotrun Najihah, Dliyaun Naomi, Laetycia Nata, Jiwangga H Nilawardhani, Farista Dhika Novitasari, Salwa Aulia Nuruddin Pahrijal, Rival Permatasari, Karin Sufi Pranciska Trisnawati Handayani Budianto Prastika, Pingky Dwi Ayu Pratama, I Wayan Adi Priyana, Yana Priyo Susilo, Fahmi Agus Puspita, Dinar Chandra Putri, Fidyasari Kusuma Putri, Nabilah Paramita Rachman Sinatriya Marjianto Rahayu, Sita Arifani Rahmat Yuliawan Ramadhan, Kemal Zulfikar Rasyidah Rasyidah Rchwono, Yudianto Reindrawati, Dian Y Renanda Ariska Faradina Riananda, Zavira Rike Ardhinissa Rio Hengky Sulanda Riskihadi, Afrike Rizki Dwika Amalia, Rizki Dwika Rizki Yunia Cesaria Ruslan Wirosoedarmo Ruslan Wirosoedarmo Santi Diwyarthi, Ni Desak Made Saputri, Aflahah Ramadhani Nidia Seliaprillia Seliaprillia Septiyaningsih, Nurul Shelly Christanti Silfi Arini Sinulingga, Rizky Amalia Sofiansyah, Ari Sri Endah Nurhidayati Suharno, Novianto Edi Suprapto, Sena Sukmananda Suriani, Nur E Suriani, Nur Emma Susanawati, J. Liliya Dewi Susilo, Anton Sya'diyah, Maghfirotus Syahmani Syahmani Syahputra, Dimas Novian Syaiful Hidayat, Syaiful Tri Siwi Agustina Tunggal Afrilia Ulpah, Nurul Wahdah, Nikmatul Bahril Wardhani, Dya Ayuning Kusuma Wulan Ruhunnatiqah Hijriyati Yunardi, Riky Tri Yunita, Febri Rizma Yusram adi