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All Journal HAYATI Journal of Biosciences Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) AGRITROP Jurnal Natur Indonesia Jurnal Teliska Jurnal AgroBiogen Planta Tropika Jurnal Ampere Jurnal Penelitian Karet JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Jurnal Penelitian Pertanian Tanaman Pangan Journal of Tropical Crop Science Sainstek : Jurnal Sains dan Teknologi Buletin Palma International Journal of Research in Vocational Studies (IJRVOCAS)
Sudirman Yahya
Departemen Agronomi Dan Hortikultura, Fakultas Pertanian, Institut Pertanian Bogor (Bogor Agricultural University), Jl. Meranti Kampus IPB Darmaga, Bogor 16680, Indonesia
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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Application of Empty Fruit Bunches of Oil Palm and Indigofera zollingeriana for Conservation of Oil Palm Plantation Saijo, Saijo; Sudradjat, Sudradjat; Yahya, Sudirman; Hidayat, Yayat; Rosawanti, Pienyani
PLANTA TROPIKA Vol. 10 No. 2 (2022)
Publisher : Department of Agrotechnology, Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.v10i2.15467

Abstract

Oil palm empty fruit bunches are materials used as organic fertilizers that can be applied to oil palm plantations, thereby reducing the use of inorganic fertilizers. Indigofera zollingeriana is an appropriate alternative as an interplant because of its high branch and leaf development. Functions as a ground cover and a supplier of carbon stocks naturally plays a role in water and soil conservation. This study aims to determine the effect of oil palm empty fruit bunches and I. zollingeriana on land improvement to support oil palm growth and production. Variables observed included changes in soil water content, soil microorganism activity, and carbon stock. The results showed that the soil planted with I. zollingeriana and given the empty fruit bunches of oil palm had a higher soil moisture content. The highest soil carbon stock, oil palm carbon stock, and vegetation carbon stock were 81.6 t ha-1, 36.60 t ha-1, and 1.89 t ha-1, respectively. The population and activity of microorganisms varies. The highest total microorganisms were treated with I. zollingeriana and oil palm EFB 105 (10⁵CFU g-1), while the lowest was 60 (10⁵CFU g-1). Planting I. zollingeriana and providing oil palm empty fruit bunches increased groundwater reserves by 36.71%.
SISTEM MONITORING DAYA PADA PENGOPERASIAN MOTOR LISTRIK BERBASIS POWER METER Yahya, Sudirman; Suyadi, Andri; Febriani, Alda
JURNAL TELISKA Vol 18 No I (2025): TELISKA Maret 2025
Publisher : Teknik Elektro Polsri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.15052295

Abstract

In the industrial sector, 3-phase induction electric motors are widely used as drivers for conveyors, blowers, elevators, and others. Using an induction motor has many advantages, including relatively cheap prices, easy maintenance, and simple construction. When using a 3-phase induction electric motor, electrical power is an important parameter that needs to be considered. Poor power quality can cause a variety of problems, including reduced efficiency, equipment damage and disruption to the electrical system. Therefore, power monitoring is important to identify possible problems and take appropriate corrective or preventive action. Power monitoring can also provide a better understanding of how power quality can affect the operating efficiency and reliability of 3-phase induction electric motors. This can also be valuable knowledge on understanding and optimizing the performance of 3-phase induction electricity in industrial electrical installation practices by using a Power Meter to monitor the power consumed by the electric motor in real time.
Co-Authors AA Sudharmawan, AA Ade Wachjar ADEEL ABDUL KARIM ALTUHAISH Agus Purwito Aiyen Tjoa Alfian, Anggra Amperawan Amperawan, Amperawan Andi Besse Poleuleng ASMARLAILI SAHAR Bari, Abdul Bofynna, Pio Agma Chairani Hanum Chairani Hanum Desta Wirnas Dharend Lingga Wibisana Diana Sofia Hanafiah DIDI SOPANDY Febbiyanti, Tri Rapani Febriani, Alda Haridjaja, Oteng Hariyadi Hariyadi Hariyadi, nfn Herdhata Agusta Hesti Pujiwati Ida Nur Istina, Ida Nur Ilyas Marzuki KOMARUDIN IDRIS Kukuh Murtilaksono Kusumawati, Sri Ambar Mahulette, Asri Subkhan Marniati, Yessi Miftahudin . Mira Ariyanti Muhammad, Fakhry Munif Ghulamahdi Nofiansah Nope Gromikora Nunyai, Aslina Putri Nurita Toruan-Mathius Pambudi, Ignatius Harry Tri Pienyani Rosawanti Purwono Purwono, Purwono Rasyad, Sabilal Retno Prihatini Roberdi , Rumiasih Saijo Sandra Arifin Aziz Simanjuntak, Hiskia Siregar, Hasril H. Sobir Sobir Sofiana, Yelli Sofyan Zaman Sri Mulatsih Sri Mulatsih Subandi, Subandi Sudradjat Sudradjat Suryo Wiyono Sutarta, Edy Sigit Sutarta Sigit Sutoro, Sutoro Suwarto Suwarto Suwarto Suyadi, Andri Tony Liwang Tri Rapani Febbiyanti, Tri Rapani Trikoesoemaningtyas Wahyu Hidayat WAHYU Q. MUGNISJAH Widodo Widodo Yani, Herman Yayat Hidayat Yenni Asbur Yoga Yuniadi