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Kajian Kebutuhan Air dan Produktivitas Air Padi Sawah dengan Sistem Pemberian Air Secara SRI dan Konvensional Menggunakan Irigasi Pipa Najla Anwar Fuadi; Muhammad Yanuar J. Purwanto; Suria Darma Tarigan
Jurnal Irigasi Vol 11, No 1 (2016): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (923.001 KB) | DOI: 10.31028/ji.v11.i1.23-32

Abstract

Limited water availability for agricultural land may cause decrease in rice production. The increase of crop production currently become a top priority in agricultural development. Productivity can be assessed through a subsystem of soil, water, and land patterns to use in certain periods. The applications of pipe irrigation with the combination of System of Rice Intensification (SRI) was capable to use water efficiently. Therefore, research concerning the calculation of water productivity of paddy rice which uses input pipe irrigation with conventional water supply system and SRI system is important to be conducted. The research steps were direct observation in the field, measurement of evapotranspiration, percolation, net field requirements and calculation of water productivity. The results showed that the production of rice was higher in water delivery system of SRI. Water productivity of paddy with SRI system also higher, where the water needs with a combination of pipe irrigation and water delivery systems in SRI were the best treatment. Water productivity in conventional rice fields was 0.82 kg/m3 and SRI 1.12 kg/m3. The combination of pipe irrigation and SRI systems showed high water productivity and efficient use of water.
Efisiensi Sistem Irigasi Pipa untuk Mengidentifikasi Tingkat Kelayakan Pemberian Air dalam Pengelolaan Air Irigasi Afri Fajar; Muhammad Yanuar J. Purwanto; Suria Darma Tarigan
Jurnal Irigasi Vol 11, No 1 (2016): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (894.921 KB) | DOI: 10.31028/ji.v11.i1.33-42

Abstract

Irrigation water loss that commonly occurs in an agricultural area are runoff and deep percolation. Pipe irrigation has reached 98% efficiency because it can control the use of water as needed and has no seepage for water supply. Distance of paddy field’s inlet should also be a considered factor aside from irrigation technology. Rice field’s inlet distance affect the water distribution in a fields plot as they relate to application efficiency (Ea) and the efficiency of water distribution (Ed). The method used in this research was descriptive method that collect primary data and secondary data. The experiment plots were installed with irrigation pipes. The results showed Ed values above 90% in conventional and System of Rice Intensification (SRI). This explains the distribution of water in pipe irrigation evenly throughout the planting area. Ea value on experimental plots ranged between 76% - 98%. This is because of the occurrence of deep percolation and surface flow at the conventional fields, which causes decrease in efficiency. The paddy field inlets distance simulation results showed that good Ea (≥ 90%) obtained at a distance of 30 m with SRI water application gave water saving up to 10,25%. The feasibility of the water application on the value of Ea was obtained from the level of application of irrigation water’s pattern to conventional paddy at vegetative phase is critical at a distance of 170 m, while the generative phase is critical at a distance of 75 m and very critical at 178 m. SRI paddy field gives the value of feasibility of providing water at vegetative phase becomes near critical at a distance of 170 m, while the generative phase becomes critical at a distance of 150 m.
Infiltrasi dan Aliran Permukaan pada Agroforestri dan Kelapa Sawit Austin Ullyta; Suria Darma Tarigan; Enni Dwi Wahjunie
Jurnal Ilmu Pertanian Indonesia Vol. 27 No. 3 (2022): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.27.3.359

Abstract

Forest to oil palm plantations conversion has changed soil's physical properties significantly. It caused significant changes in the hydrological cycle and affects the water resources around the research site. One of the strategies that could minimize the negative impact of monoculture oil palm plantations is better plantation management by implementing a mixed cropping system (agroforestry). This study aims to analyze the infiltration, surface runoff, and surface runoff coefficient in agroforestry and monoculture oil palm. This observation was conducted in the oil palm plantation area of PT Humusindo Makmur Sejati, Bungku Village, Bajubang District, Batanghari Regency. The infiltration rate was calculated according to the Horton method, and the amount of runoff in agroforestry and oil palm monoculture used the soil conservation service-curve number method. The results showed differences in infiltration, surface runoff, and runoff coefficients between the agroforestry land and the monoculture oil palm. The highest infiltration is in A48, which is 42,00 cm/hour in the dry season and 18,00 cm/hour in the rainy season. The lowest runoff is in A23, which is 70.14 mm with a runoff coefficient of 0.04. The highest runoff occurred in S48 of 339.88 mm, with a runoff coefficient of 0.19. The differences in infiltration, surface runoff, and runoff coefficient in this study are affected by the vegetation density and the amount of litter. Keywords: agroforestry, infiltration, oil palm, runoff coefficients, surface runoff
Analisis Ketersediaan Dan Kebutuhan Air Di Das Cisangkuy Mariana Lusiana Resubun; Enni Dwi Wahyunie; Suria Darma Tarigan
Musamus AE Featuring Journal Vol 2 No 1 (2019): MAEF-J Oktober 2019
Publisher : Faculty of Agriculture, Musamus University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35724/maef-j.v2i1.2516

Abstract

Flooding in the rainy season and a drought that occurred in the dry season shows the distribution discharge river that is not evenly throughout the year. The event of floods and droughts happened in Cisangkuy watershed will affect the availability of water in fulfilling 6 important sectors of supporting human life, which is: domestic demand for water, agricultural land for farming, freshwater pounds, farm, industry and maintenance of rivers. Analysis of supply and demand for water in this research aims to review the availability and water demand in Cisangkuy watershed , and also water conservation effort with integrated water management. Methods used in this research is a observation method. The result showed there are scarce water ( deficit) in 2005, 2010 and 2015, each of 76 962 026 m3year-1 111 189 540 m3year-1 and 170 215 063 m3year-1.
Characteristics of soil physical properties in different soil management of oxisols and inceptisols Naro Pandapotan Pasaribu; Enni Dwi Wahjunie; Suria Darma Tarigan
Agrovigor Vol 16, No 2 (2023)
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrovigor.v16i2.19869

Abstract

Oil palm (Elaeis guineensis Jacq.) is a plantation crop that has a bright future. Soil management such as land clearing, burning, use of heavy equipment and fertilisation in oil palm plantations will affect changes in soil physical properties. This study aims to assess the physical properties of soil in various treatments (planting circle, dead interplant spacings and live interplant spacings) on Oxisol and Inceptisol soil types. This research was conducted in Rancabungur and Malingping Banbten in October 2021 - May 2022. The method used in this study was multistage random sampling. Soil samples were taken from the Malingping area of Banten for the Oxisol soil type (2005 and 2009 planting years), and the Rancabungur area for the 2005 Inceptisol soil type. Comparison of soil physical properties of Oxisol of 2005 planting year with Oxisol of 2009 planting year and the ratio of Oxisol soil type of 2005 planting year and Inceptisol of 2005 planting year in various treatments did not show significant differences in soil physical properties (organic matter, content weight, field capacity moisture content, permanent wilting point, and particle density) between planting circle, dead interplant spacings and live interplant spacings. However, there were significant differences in the physical properties of soil texture between each management and permeability.
Co-Authors . Asisah . Hikmatullah Afri Fajar AH. Maftuh Hafidh Zuhdi Ai Dariah Andria Harfani Qalbi Atang Sutandi Austin Ullyta Bambang Hendro Trisasongko Bandung Sahari Bejo Slamet Budi Kartiwa Bunasor Sanim Bunasor Sanim Dasanto, Bambang Dwi Dede Sulaeman Dede Sulaeman, Dede Dwi P T Baskoro Dwi Putro Tejo Baskoro Enni Dwi Wahjunie Enni Dwi Wahyunie ERNA SURYANI Erwin Hermawan Faqihna Pidin Fitriani Hayati Gunadi Firdaus Haki Yusdinar Haris Syahbuddin Hefni Effendi Hendrayanto . Hengky Wijaya Hidayat Pawitan Hidayat Pawitan Hidayat Pawitan Hidayat Pawitan Hidayat Pawitan I Nengah Surati Jaya Iin Ichwandi Jamhari Jamhari kartika triasary Kerstin Wiegand Kiki Rishki Ananda Kukuh Murtilaksono Kukuh Murtilaksono Kukuh Murtilaksono La Baco S Laksono Trisnantoro Latief Mahir Rachman Mahendra Harjianto Mariana Lusia Resubun Mariana Lusiana Resubun Marimin . Marisa Dwi Putri Muhamad Buce Saleh Muhammad Yanuar J. Purwanto Muhammad Yanuar Jarwadi Purwanto Naik Sinukaban Naik Sinukaban Naik Sinukaban Naik Sinukaban Najla Anwar Fuadi Naro Pandapotan Pasaribu Nicko Widiatmoko Novia Mustikasari Nurdiyanto Agung Prasetya Nurlaila Mubarokah Nurmaranti Alim Omo Rusdiana Oteng Haridjaja Oteng Haridjaja Pungkas Syahadat Purwanto, Yanuar Jarwadi Reyna Prachmayandini Rikky Mulyawan Rima Purnamayani Rudolf Kristian Tukayo Saiful Akhyar Lubis Santun R.P Sitorus Sarif Robo Selamet Kusdaryanto Setyo Pambudi Nugroho Sudadi, Untung Sudradjat Sudradjat Sunarti Sunarti Suprihatin Suprihatin Surya Cipta Ramadhan Kete Tania June Trihono Kadri Ulfah Sarach Sheftiana Widya Ulfah Utami Yayat Hidayat Yudha Kristanto Yusdinar, Haki Yustika, Rahmah Dewi