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All Journal HAYATI Journal of Biosciences Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Jurnal Ilmu Pertanian Indonesia Jurnal Fitopatologi Indonesia MEDIA KONSERVASI Jurnal Ilmu Tanah dan Lingkungan (Journal of Soil Science and Environment) Jurnal Ilmiah Aplikasi Isotop Radiasi Microbiology Indonesia Journal of Tropical Soils Jurnal Penelitian Hutan Tanaman Plumula : Berkala Ilmiah Agroteknologi Pelita Perkebunan Journal of Degraded and Mining Lands Management Jurnal Sumberdaya Hayati ZOO INDONESIA Jurnal Penelitian Karet AGRISAINTIFIKA Jurnal Ilmu-ilmu Pertanian Jurnal Bioteknologi & Biosains Indonesia (JBBI) SAINS TANAH - Journal of Soil Science and Agroclimatology Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Journal of Tropical Crop Science Jurnal Entomologi Indonesia Agroekoteknologi Tropika Lembab Agro Bali: Agricultural Journal Jurnal Kesehatan Jurnal Tanah dan Iklim Zoo Indonesia Prosiding Seminar Nasional Biologi
RAHAYU WIDYASTUTI
Departemen Ilmu Tanah Dan Sumberdaya Lahan, Fakultas Pertanian IPB, Jl. Meranti Kampus IPB Dramaga, Bogor 16680
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology Nursing Public Health Other

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Identifikasi dan Potensi Cendawan Indigenous untuk Pelapukan Batang Kelapa Sawit di Bogor, Indonesia Nofrifaldi; Hariyadi; Widyastuti, Rahayu
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 47 No. 3 (2019): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (452.215 KB) | DOI: 10.24831/jai.v47i3.26040

Abstract

Indigenous microorganisms effectively accelerate the decomposition of agricultural waste and agricultural waste that has been decomposed properly can be an organic fertilizer containing macro and microelements. The aim of the study was to determine the potential of indigenous cellulolytic fungi in the palm oil stems after replanting. The research was conducted at the Cikabayan Experimental Field Bogor Agricultural University, Dramaga, West Java. The experiment was conducted in October 2018 until January 2019, using a randomized complete block design consisting of four decomposition methods treatment: control, added with decomposer, chopping, and chopping+decomposer. The results showed that four isolates and isolate A were chosen to calculate the number of fungi at a dilution rate of 10-6 because they had the largest diameter. The identification results of isolate A were Trichoderma harzianum fungi and it was concluded that Trichoderma sp. in the palm oil stem after replanting, it has the potential as an indigenous cellulolytic fungus of oil palm trunks. The chopping+decomposer treatment can accelerate the weathering of the oil palm stem with a significant influence between the treatments that have met the requirements of compost maturity as specified in SNI 19-7030-2004 with ratio C/N 16.11 at 3 months after treatment. Keywords: decomposer, Elaeis guineensis Jacq., isolate, Trichoderma sp.
THE EFFECT OF COMBINATION SLUDGE, HUSK CHARCOAL, COMPOST, AND NPK FERTILIZER ON THE GROWTH SWEET CORN Fitriyani, Indri Hapsari; Widyastuti, Rahayu; Aprilianti, Nabila
Agrisaintifika: Jurnal Ilmu-Ilmu Pertanian Vol. 9 No. 3 (2025): Agrisaintifika
Publisher : Universitas Veteran Bangun Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32585/ags.v9i3.7112

Abstract

The spice and seasoning industry produce sludge waste that has the potential to pollute the environment if not managed properly. This waste contains nutrients and organic matter, making it a potential soil conditioner for sweet corn cultivation; however, its use must be combined with other materials such as rice husk charcoal and compost. This study aims to determine the effectiveness of combining sludge, compost, husk charcoal, and NPK fertilizer on the growth and productivity of sweet corn. This study was conducted at the Cikabayan Experimental Farm using a Randomized Block Design (RBD) with five levels of sludge application: (1) 100% sludge (S1H2), (2) 75% sludge (S2H2), (3) 50% sludge (S3H2), all treatments were combined with husk charcoal (75%), compost (30%), NPK fertilizer (75%), urea (100%), (4) PB (NPK 100%), and (5) Control (no treatment). Each treatment was repeated three times, resulting in 15 experimental units. The results showed that the S2H2 treatment yielded the best results for all plant growth parameters, such as plant height, stem diameter, and all generative parameters. The S1H2 combination yielded the best results for soil chemical and biological characteristics, including pH, organic carbon, total nitrogen, total microbes, and total fungi. The S1H2 combination also yielded the best results for corn plant productivity at 5.30 tons/ha. The combination of organic matter and NPK fertilizer application is highly efficient as it reduces NPK fertilizer use by 25%.
Efek Iradiasi Gamma Co-60 dan Ultraviolet terhadap Karakteristik dan Kemampuan Pelarutan Fosfat dan Kalium Aspergillus costaricaensis dan Staphylococcus pasteuri Maulinda, Restiana; Anas, Iswandi; Widyastuti, Rahayu; Citraresmini, Ania
Plumula : Berkala Ilmiah Agroteknologi Vol. 14 No. 1: Januari 2026 (In Press)
Publisher : Program Studi Agroteknologi, Fakultas Pertanian, UPN "Veteran" Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/plumula.v14i1.248

Abstract

Radiasi gamma Co-60 dan ultraviolet berpotensi untuk meningkatkan kemampuan mikroba dalam melarutkan fosfat dan kalium. Penelitian ini bertujuan untuk mengetahui pengaruh radiasi gamma Co-60 dan ultraviolet terhadap karakteristik serta indeks kelarutan fosfat dan kalium Aspergillus costaricaensis dan Staphylococcus pasteuri. Tahap penelitian terdiri dari iradiasi gamma Co-60 (dosis 0; 5; dan 10 kGy) dan ultraviolet (lama penyinaran 0; 1; dan 5 jam). Hasil menunjukkan bahwa iradiasi gamma Co-60 dan ultraviolet menyebabkan perubahan karakteristik pada mutan A. costaricaensis dan mutan S. pasteuri, meliputi kecepatan pertumbuhan, jumlah koloni, ukuran, warna, dan bentuk koloni. Menariknya, perlakuan ultraviolet tidak mengakibatkan perubahan karakteristik koloni bila dibandingkan dengan induknya. Indeks pelarutan fosfat dan kalium mutan A. costaricaensis masing-masing berkisar 2,06–2,12 dan 2,15–2,23. Sementara itu, mutan S. pasteuri menunjukkan indeks pelarutan fosfat 2,22–2,50 dan kalium 2,06–2,33.
Co-Authors . Anandyawati . Giyanto . Giyanto A M Zuhud, Ervizal Abda Abda Abied Khafidhan Adiyaksa, Ivan Khofian AHMAD JUNAEDI Ana Khalisha Anandyawati, . Anas Iswandi Andreas Panjaitan Andreas Panjaitan Ania Cintaresmini Ania Citraresmini Ania Citraresmini Ania Citraresmini Antonius Suwanto Aprilianti, Nabila Apsari Putri Wulandari Aris Tri Wahyudi Atang Sutandi Atit Kanti Aviantara, Dwindrata B. Azra Zahrah Nadhirah Ikhwani Bria, Deseriana Budi Nugroho Budi Nugroho Dadang . DADANG DADANG Daniel Happy Putra Darmawan Darwis Delima Napitupulu Delima Napitupulu Devanda Ayu Lidya Permata Putri Dewi Sekar Pengerteni Dewi, Tirta Kumala Dhanti Hanifa Muslimah Dimas Syahiddin Dwi Andreas Santosa DWI ANDREAS SANTOSA Dwi Wulandari Edy Hartulistiyoso Eka Lupitasari Endang Sulistyorini Endang Sulistyorini Enny Widyati Enok Sumarsih ERNIN HIDAYATI Erwinda Erwinda Evi Ambarsari Fahrizal Hazra Fajri, Ihsanul Fany Juliarti Panjaitan Fitriyani, Indri Hapsari Giyanto Gunawan Djajakirana Hariyadi Heru Bagus Pulunggono I Made Sudiana I Nyoman Sujana Ida Widiyawati Idris Idris Idris, Komaruddin Irawati, Arfi Irdika Mansur Iswandi Anas Iswandi Anas Iswandi Anas Iswandi Anas Iswandi Anas Chaniago Jekvy Hendra Jekvy Hendra Joko Warino Kartika, Sari Yulia Khairiyah, Yaumil Laksmita Prima Santi MAIPA DIA PATI Masaru Kobayashi Maulinda, Restiana Misbakhul Bait Nabila Dianisa Niken Puspita sari Nofrifaldi Ohiwal, Morgan Priyo Cahyono Putri Wulandari, Dwi Ramadhani Sri Astuti, Andi Febrianti Ratnawati Lantifasari Remila Selvany Risa Rosita Rohani Cinta Badia Ginting Rumella Simarmata Rury Kurniawan Safira Eka Aprianti Sanjaya, Wilhelmus Terang Arga Sari Yulia Kartika Sarjiya Antonius SATRIYAS ILYAS Satya Nugroho Soetanto Abdoellah Sri Sulisawati Suciati, Fuzi Sugeng Santoso Sugiarto, Petrus Sugiyanta , Sukmadewi, Desak Ketut Tristiana Sumarsih, Enok Suryo Wiyono Syaiful Anwar Taufiq Hidayat Tita Puspitasari Titik Tri Wahyuni Umadi, Sarah Sakinah Umi Hidayati Umi Hidayati Utami, Aditya Dyah Widrializa, . Wilhelmus Terang Arga Sanjaya Wilhelmus Terang Arga Sanjaya Wilhelmus Terang Arga Sanjaya Winda Ika Susanti Wiwik Eko Widayati Yayuk R. Suhardjono Yayuk Rahayuningsih Suhardjono Yayuk Rahayuningsih Suhardjono Yuni Lisafitri, Yuni Yusuf, Sri Malahayati Zuhud, Evrizal A M