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Potensi Tanaman Sorgum (Sorghum bicolor L.), Azotobacter sp. dan Pseudomonas sp. Sebagai agen biologis dalam proses Fitoremediasi Hidrokarbon minyak bumi Pujawati Suryatmana; Alyani Shabrina; Nadia Nuraniya Kamaluddin; Betty Natalie Fitriatin; Reginawanti Hindersah; Mieke Rochimi Setiawati
Soilrens Vol 18, No 1 (2020)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v18i1.29039

Abstract

Phytoremediation using Sorghum (Sorghum bicolor L.) plant is an alternative green technology to overcome oil polluted soil. Improving of the phytoremediation performance are needed stimulating agent to enhance the rate of hydrocarbon biodegradation and increase the plant growth. One of the bioagent that can act as biostimulant is Azotobacter sp. and Pseudomonas sp., because thouse bioagent can provide elements N and P, and phytohormone for sorghum plants. The purpose of this study is to examine the role of Azotobacter sp. and Pseudomonas sp. as a biostimulant for Sorghum bicolor L. in the process of biodegradation of petroleum hydrocarbon in soil system. The factorial randomized block design was used as the experimental design. The treatment consisted of 4 application levels of Azotobacter sp. and 4 levels of application of Pseudomonas sp. The results showed that there was no interaction between Azotobacter sp. and Pseudomonas sp. aplication on the efficiency of hydrocarbon degradation of the population of Azotobacrer spp., Pseudomonas spp. and plant height increase. Azotobacter sp. and Pseudomonas sp. also did not show an increase in value on each test variable. While, the potential of sorghum plants without the application of Azotobacter sp. and Pseudomonas sp. (control treatment) showed the value of the efficiency of biodegradation in the range of values of 60.442% - 68.165% during 14 weeks period and not significantly different from other treatments.
Arsenic in Gold Mine Tailing and Agricultural Soil in Buru Island of Maluku Reginawanti Hindersah; Agustinus Marthin Kalay; Robby Risamasu; Triani Dewi
Soilrens Vol 18, No 1 (2020)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v18i1.29046

Abstract

Contamination of heavy metal including Arsenic (As) due to mining activities decreased ecosystem quality. The objective of this study was to determine the arsenic level of tailing and agricultural soil, and evaluate the spatial distribution of As in closed gold mine and nearby agricultural area in Buru Sub-district of Maluku. Tailing and soil samples were taken by purposive method based on mining and agricultural activities. Arsenic level in tailing and soil samples was determined by Atomic Adsorption Spectrophotometer after mixed acid extraction. The study showed that gold mine increased As level in the top soil and tailing but soil of nearby agricultural area was not contaminated by As. Increased concentration of As in tailings has been verified. pH level of the agricultural area was neutral hence lowered As availability for plant.
Pengaruh Kombinasi Pupuk NPK dengan Suplemen Pupuk Organik Cair terhadap Jumlah Bakteri dan Jamur Total di Rizosfer serta Hasil Tanaman Sawi Putih (Brassica pekinensis L.) pada Andisols Lembang Dirga Sapta Sara; Reginawanti Hindersah; Mieke Rochimi Setiawati
Soilrens Vol 18, No 2 (2020)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v18i2.32076

Abstract

Large P fixation on Andisols can be overcome by adding P fertilizer into soil. However, to support good plant growth required the provision of nutrients N, K, micro nutrients and hormones. Research objective was to find out effect of NPK fertilizer with liquid organic fertilizer on total bacteria and fungi in the rhizosphere and plant yield of chinesse cabage (Brassica pekinensis L.) grown in Andisols. Experiment was conducted from March until May 2011 at experimental field of PT. Multiguna Indah Lestari, Kayu Ambon village, Lembang subdistrict, Bandung regency, West Java, with altitude of 1000 m above sea levels. The experimental design was Randomized Block Design with nine treatments and three replications which consisting of combination. The fertilizer rates were without treatment (A), 1dose of NPK (B), 1 dose of liquid organic fertilizer (C), 1 dose of NPK + ½ dose of liquid organic fertilizer (D), 1 dose of NPK + ½ dose of liquid organic fertilizer (E), ½ dose of NPK + 1 dose of liquid organic fertilizer (F), ½ dose of NPK + 1 dose of liquid organic fertilizer (G), 1 dose of NPK + 1 dose of liquid organic fertilizer (H), 1 dose of NPK + 1 ½ dose of liquid organic fertilizer (I). The results showed that NPK fertilizers and liquid organic fertilizer influenced total bacterial as well as fungi in the rhizosphere and plant yield of chinesse cabage. Fertilization treatments that demonstrated the best effect on both microbial population and chinese cabbage yield was application of ½ recommended dose of NPK with 1 recomended dose of liquid organic fertilizer gives the best result of 54,72 kg per plot (54,18 ton ha-1).
Peran Mikroba Dekomposer Selulolitik dari Sarang Rayap dalam Menurunkan Kandungan Selulosa Limbah Pertanian Berselulosa Tinggi Mieke Rochimi Setiawati; Nizar Ulfah; Pujawati Suryatmana; Reginawanti Hindersah
Soilrens Vol 17, No 2 (2019)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v17i2.26365

Abstract

Agricultural waste is rich in cellulosic material that is difficult to degrade but can be decomposed by cellulase enzymes. Cellulosic material is an organic component abundantly in nature in the form of cellulose and hemicellulose polymer. Utilization of microbes in the process of waste bioconversion can be done to get added value from the waste material into other products such as organic fertilizer. Cellulase-producing microbes can be isolated from various sources, one of which is from termite nests. The use of microbes from termite nests as decomposers for composting high-yielding agricultural waste was carried out in this study. Cellulolytic microbial isolates (combination of bacteria and fungi and without decomposers) were applied to agricultural wastes high in cellulose content: rice straw, bagasse, and oil palm empty fruit bunches. Randomized Block Design was applied and each treatment was and repeated 3 times. The composting process was carried out for 1 month indoors. The results showed that cellulolytic microbial consortium obtained from termite nests reduced the compost cellulose content of bagasse agricultural waste in one month. Whereas rice straw and oil palm empty fruit bunches showed a tendency to decrease cellulose content because cellulose degradation by decomposer microbes still continues after one month of incubation.
N-Total, Serapan N, dan Pertumbuhan Kacang Tanah (Arachis hypogaea L.) Akibat Inokulasi Azotobacter dan Bahan Organik pada Tailing Tambang Emas Pulau Buru, Maluku Febby Nur Indriani; Reginawanti Hindersah; Pudjawati Suryatmana
Soilrens Vol 15, No 2 (2017)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (520.866 KB) | DOI: 10.24198/soilrens.v15i2.21463

Abstract

Mining may directly affect the surrounding environment if the tailings produced were not processed properly. Tailings from gold mining activities caused critical land condition both physically and chemically. The damage of environment caused by mining activities need to rehabilitated. Rehabilitation can be done through revegetation of pioneer plants, addition of organic matter, and potential microbiological applications. This research was conducted to determine the potential of organic matter and Azotobacte inoculant for gold mine tailing rehabilitation on soil total N, N uptake, and growth of peanut. Experiment was carried out at Biology Laboratory, Soil Fertility and Plant Nutrition Laboratory Department of Soil Science and Land Resources and Greenhouse of Faculty of Agriculture, Universitas Padjadjaran, Jatinangor. The experimental design was Split Plot consisted of three replications. Main plot is dosages of organic matter consisted of 1,5%, 3% and 4,5% dosages, sub plot was the species of Azotobacter and consisted of control, indigenous Azotobacter sp., Azotobacter chroococcum, indigenous Azotobacter sp. and Azotobacter chroococcum constria. The result showed there was no interaction between Azotobacter sp. inoculant and organic matter toward total N, N uptake, and growth of peanut on tailing. Organic matter of 1,5% and 3% significantly increased total N of soil.Keywords: Azotobacter, nitrogen, peanut, tailing
Aplikasi Pemupukan Organik dan Hayati di Sawah Kabupaten Tasikmalaya Jawa Barat Reginawanti Hindersah; Sondi Kuswaryan
Aksiologiya: Jurnal Pengabdian Kepada Masyarakat Vol 4, No 1 (2020): Februari
Publisher : Universitas Muhammadiyah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30651/aks.v4i1.2136

Abstract

ABSTRAKSebagian sawah di  Kecamatan Sukaratu, Kabupaten Tasikmalaya tertimbun material letusan Gunung Galunggung pada 1982 sehingga kualitas sawah tidak sebaik sebelum letusan. Peningkatan kualitas tanah sawah dapat dilakukan dengan bahan organik dan pupuk hayati. Tujuan Pengabdian kepada Masyarakat ini adalah memberikan pengetahuan dasar tentang pupuk hayati kepada petani di desa Sinagar dan Linggajati serta meningkatkan keterampilan petani dalam aplikasi pupuk hayati disertai kompos. Untuk mencapai tujuan tersebut, telah dilakukan diskusi kelompok terfokus dan penyuluhan mengenai pupuk hayati, praktek pembuatan kompos dan apliksi pupuk hayati konsorsium di sawah. Hasil kegiatan ini adalah 20 orang petani memahami  peran mikroba dan pupuk kotoran ternak serta komps dalam produksi tanaman; tetapi  mereka belum mampu membuat pupuk organik sesuai standard. Hanya satu orang petani yang mengaplikasikan pupuk hayati disertai penambahan kompos di tanah sawah sehingga meningkatkan produksi sebesar 1%.  Program ini memberikan gambaran bahwa teknologi pupuk hayati dapat diadopsi oleh petani di Kecamatan Sukaratu.Kata kunci: bahan Organik;  kotoran ternak; padi sawah; pupuk hayati.ABSTRACTSome of the paddy fields in Sukaratu Sub-district, Tasikmalaya Regency were buried by Mount Galunggung's eruption material in 1982 so that the quality of soil was worse than that before the eruption. Improving the quality of paddy soil can be established with biological fertilizers. The purpose of this community service was to introduce the basic knowledge about biofertilizer to farmers in the Sinagar and Linggajati Village; and to improve farmers' skills in the application of biological fertilizers and compost. To achieve the goals, we conducted a focused group discussion, short extension program on biological fertilizers, compost production, and consortium biofertilizer application in paddy fields. The result verified that 20 farmers has knowledge about the role of beneficial microbes, manure and compost for plant production but they did not able to prepare standardized organic matter. However one farmer was interested to apply biofertilizers along with compost to paddy fields. This program illustrates that biofertilizer technology can be adopted by farmer in Sukaratu Sub-district.Key Words: biofertilizer; cattle manure; organic matter; paddy soil
Pengaruh Inokulasi Azotobacter Penghasil Eksopolisakarida terhadap Berat Kering dan Kandungan Kadmium Kubis (Brassica oleracea) di Tanah yang Dikontaminasi Kadmium Reginawanti Hindersah; Dedeh H. Arief
Agrikultura Vol 21, No 1 (2010): April, 2010
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (252.568 KB) | DOI: 10.24198/agrikultura.v21i1.979

Abstract

Di lahan pertanian, kadmium (Cd) dapat berasal dari pupuk anorganik terutama pupuk fosfat. Kadmium dapat diakumulasi dalam jumlah berlebih di tanaman akumulator seperti keluarga Brassicacea tanpa gelaja keracunan. Serapan Cd dapat meningkat jika disertai inokulasi pupuk hayati Azotobacter yang menghasilkan Eksopolisakarida. Penelitian ini bertujuan untuk mengevaluasi peningkatan kandungan Cd di tajuk tanaman kubis yang ditanam di tanah dikontaminasi Cd melebihi ambang batas setelah inokulasi bakteri Azotobacter. Percobaan rumah kaca dirancang dalam rancangan acak kelompok pola faktorial dengan aplikasi CdCl2 ke tanah Andisols sebagai  faktor pertama dan inokulasi isolat Azotobacter sebagai faktor kedua. Hasil penelitian memperlihatkan bahwa inokulasi Azotobacter isolat LKM6 meningkatkan kandungan Cd tajuk kubis yang ditanam di tanah yang dikontaminasi Cd melebihi ambang batas. Pada penelitian ini tanaman kubis yang ditanam di tanah dikontaminasi CdCl2 tidak memperlihatkan gejala keracunan.
Role of Nitrogen Fertilizer on Cadmium Uptake by Ramie (Boehmeria nivea (L.) Gaudich) Grown on Cadmium Contaminated Soil Reginawanti Hindersah; Anne Nurbaity; Dedi Nursyamsi
Agrikultura Vol 26, No 1 (2015): April, 2015
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (251.23 KB) | DOI: 10.24198/agrikultura.v26i1.8460

Abstract

ABSTRACTContinues phosphate fertilization as well as organic matter amendment can increase cadmium concentrationin soil and induce more cadmium uptake by plants. Pytoremediation using non edible plant such as ramie(Boehmeria nivea L. Goud) is cheap and effective method to extract Cd from Cd-contaminated soil. Since inplant tissue Cd is bound in phytochelatin peptide which contains nitrogen and sulphur, the objective of thisgreen house experiment was to assess the influence of nitrogen fertilizer in form of urea on cadmiumuptake, nitrogen and sulphur concentration in shoots as well as shoot dry weight of 60-day old ramiegrown in cadmium-contaminated soil. The experiment was set up in a Split Plot Design with two treatmentsand three replications. The main plot was cadmium levels (0, 10 and 15 mg kg-1) and subplot was urea level(0, 5.0 and 7.5 g pot-1). The result showed that the increase of cadmium concentration in soil enhanced itsconcentration in ramie shoot regardless of urea levels. However either cadmium or urea did not changesulphur concentration in ramie shoot. Urea of 7,5 g/pot increased shoot dry weight but adding CdCl2.H2O of15 mg/kg did not change shoot dry weight. This experiment demonstrated that ramie was able to grow inrelatively high level of soil cadmium, and higher cadmium uptake by ramie shoot was not followed by anincrease in nitrogen as well as sulphur uptake.Keywords: Cadmium, Urea, Nitrogen, Sulphur, Ramie.
Preferensi dan Waktu Aktif Harian Kunjungan Burung Bondol Jawa (Lonchura leucogastroides) terhadap Fase Pertumbuhan Padi (IR-36) di Lahan Sawah Jatinangor Ichsan Nurul Bari; Ai Siti Santriyani; Wawan Kurniawan; Reginawanti Hindersah; Tarkus Suganda; Vira Kusuma Dewi
Agrikultura Vol 32, No 1 (2021): April, 2021
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/agrikultura.v32i1.31450

Abstract

Burung bondol jawa (Lonchura leucogastroides) merupakan salah satu hama pada tanaman padi ketika memasuki fase generatif. Petani seringkali menjaga sawah selama sehari penuh untuk mengendalikan hama burung. Cara tersebut kurang efektif karena banyak waktu petani yang terbuang hanya untuk mengendalikan burung. Penelitian ini bertujuan untuk mengetahui tingkat kematangan padi yang disukai bondol jawa dan mengetahui kelimpahan kunjungan tertinggi burung bondol jawa di sawah. Penelitian dilakukan pada bulan Maret hingga bulan Mei 2020 bertempat di lahan sawah milik petani di Desa Cileles, Jatinangor dan Laboratorium Vertebrata, Fakultas Pertanian, Universitas Padjadjaran. Metode uji kelimpahan kunjungan tertinggi dilakukan dengan menghitung jumlah burung yang berkunjung pada lahan penelitian. Sementara itu, metode uji preferensi pada bondol jawa dilakukan dengan membandingkan bagaimana cara makan bondol jawa ketika diberi pakan padi yang matang susu dan padi yang sudah matang penuh. Hasil penelitian menunjukkan bahwa bondol jawa menyerang sepanjang pengamatan, yaitu 11 MST-14 MST. Tingkat kematangan padi yang disukai bondol jawa adalah saat matang susu. Kelimpahan bondol jawa mengunjungi sawah adalah saat sore hari, yaitu mulai dari jam 14.00 hingga jam 17.00. Hal ini menunjukkan bahwa masa tersebut dapat digunakan petani untuk mengendalikan hama burung di sawah.
Konsentrasi Kadmium dan Timbal di Tanaman Mendong yang ditanam di Tanah Sawah dengan Aplikasi Azotobacter dan Arang Aktif Triyani Dewi; Reginawanti Hindersah
Agrikultura Vol 20, No 3 (2009): Desember, 2009
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (221.466 KB) | DOI: 10.24198/agrikultura.v20i3.953

Abstract

Dampak kegiatan industri adalah pencemaran air dan tanah pertanian yang mengurangi daya dukung lahan untuk produksi tanaman. Pertumbuhan industri yang meningkat dengan pesat di wilayah Daerah Aliran Sungai  memungkinkan terjadinya pencemaran berbagai jenis logam berat di lahan sawah. Tujuan penelitian ini adalah mengkaji kemampuan tanaman mendong (Fimbristylis globulosa) yang ditanam dengan inokulasi bakteri penghasil eksopolisakarida Azotobacter maupun arang aktif dalam menurunkan kandungan  kadmium (Cd) dan timbal (Pb) dari tanah serta meningkatkan serapannya di tanaman mendong.  Penelitian rumah kaca ini menggunakan Rancangan Acak Kelompok dengan empat perlakuan yang diulang tiga kali. Hasil penelitian menunjukkan bahwa  saat mendong berumur 4 minggu,  inokulasi Azotobacter dengan dan tanpa arang aktif menurunkan kandungan Pb tanah, tetapi baik Azotobacter maupun arang aktif tidak mempengaruhi kadar Cd dan Pb di tajuk dan akar mendong. Namun, empat minggu kemudian, Azotobacter maupun arang aktif meningkatkan Kandungan Pb di akar mendong.
Co-Authors A.M. Kalay Abraham Talahaturuson, Abraham Adawiah, Aliya Zahrah Adawiyah, Aliya Z Ade Setiawan Ade Setiawan Adita Rizky Syntianis Aditya, Fasa Aditya, Fasa Aditya, Fasa Agnia Nabila Agung Karuniawan Agung Muhammad Yusuf Agus Jacob Ai Siti Santriyani Aisyah, Ayu Siti Akustu, Masako Alia Halimatusy Aliya Zahrah Adawiah Alyani Shabrina amiruddin teapon Ane Nurbaity Ani Yuniarti ANNE NURBAITY Anne Nurbaity Anni Yuniarti Anny Yuniarti Antonio Yusuf Ariani, Nabila Syifa Arief Harsono Asep Purnama Hidayat Ashwath, Nanjappa Asmiran, Priyanka Aten Komarya Bagus Adityo Bang, Sunbaek Bari, Ichsan Nurul Benito R. Kurnani Benny Joy Betty N. Fitriatin Betty Natalie Fitriatin Betty Natalie Fitriatin Betty Natalie Fitriatin Chotimah, Andina D Herdiyantoro D. A Sulaksana Dadang Epi Sukarsa Damayani, Maya Dedeh H. Arief Dedeh Hudaya Arief Dedi Nursyamsi Dedi Nursyamsi Dedi Nursyamsi Dedi Nursyamsi Dedi Nursyamsi Dedy Nursyamsi Dewi, Yeni Wispa Dewikusuma Ikhsani Dewikusuma Ikhsani Adhiningtyas Diana Nafitri Cahayaningrum Diky Indra Wibawa Dirga Sapta Sara Diyah Sri Utami DIYAN HERDIYANTORO Diyan Herdiyantoro Diyan Herdiyantoro Dwi Suci Rahayu ELENA F. L. LILIPALY Endo, Kenji Erni Suminar Erwin Erwin Etty Pratiwi Fauzul Amri Febby Nur Indriani Febby Nur Indriani Fera Siti Meilani Ferra Langoi Fiky Yulianto Wicaksono Fitriatin, Betty Fitriatin, Betty N Fitriatin, Betty Natalie Gina Nurhabibah H Yulina Handayani, Sri Haris Maulana Harry Rum Haryadi Harsono, dan Arief Henry Kesaulya Herman Rehatta Hidiyah Ayu Ratna Ma’rufah Ibnu Haikal Iis Nur Asyiah Imam Mudakir Imran Makatita Indra Herliana Irene A. Ngabalin Ishak, Lily Jajang Sauman Hamdani James Matheus June A Putinella June Putinella Juniart Leklioy Kaffah, Ruhnayati Latifah, Tipah Lukman Gunarto M Riadh Uluputty Maharani, Nadhira Saniya Mahdi Argawan Putra Mahfud Arifin Mardiyani Sidayat Marina Jamlean Martha Fani Cahyandito Matsuura, Asana Maulana, Nurzen Mauludy, Noor Muhammad Maya Damayani Mayang Agustina Meddy Rachmadi Mieke Rochimi Setiawati Mieke Rochimi Setiawati Mudiyati Rahmatunnisa Mulyadi Mulyadi Nadia Nuraniya Kamaluddin Nakayama, Masakazu Nandha Afrilandha NANJAPPA ASHWATH Neni Rostini NENNY NURLAENY Nenny Nurlaeny Nia Kurniati Nia Kurniati Nia Kurniati Ninda Meiditia Putri Nini Mila Rahmi Nizar Ulfah Nono Carsono Nugraha, Gita Bina Nugraha, Gita Bina Nugraha, Gita Bina Nurfitriana, Nofalia Nurmayulis Nuryani, dan Oktaviani, Meira Osok, Rafael M Oviyanti Mulyani Priyanka Asmiran Priyanka Asmiran PRIYANKA PRIYANKA Probo Condrosari Pudjawati Suryatmana Pujawati Suryatmana Puji Syara Anggia Putri Sri Judiani Purba Rachelita, Nadia Rachmat Harryanto Rara Rahmantika Risanti Rhasajati, Dhia Rhazista Noviardi Rhazista Noviardi Riadh Uluputty Rija Sudirja Rina Devnita Risanti, Rara Risanti, Rara Rahmatika Risanti, Rara Rahmatika Rita Harni Rita Harni Robby Risamasu Robi Risamasu Rudi Priyadi Rustam Rustam Salsabilla, Camilla Sandra Amalia Riyadi Sandrawati, Apong Saon Banerjee Sarita Sarkar Setiawati, Mieke Setiawati, Mieke Richimi Setiawati, Mieke Rochimi Shabrina Rahma Fauzia Soetijoso Soemitro Solihin, Amir Sondi Kuswaryan Suman Samanta Sumbada, Rifyal Achmad Rivaldi Sunardi Sunardi Sunarya, Yaya - Tarkus Suganda Toto Sunarto Tri Hanggono Achmad Tri Mulya Hartati Triani Dewi Triani Dewi Triyani Dewi Triyani Dewi Triyani Dewi Tualar Simarmata Vera Oktavia Subarja Vira Kusuma Dewi Wahyuda Rachman, Wahyuda Wawan Kurniawan Wawan Rachman Wilhelmina Rumahlewang Wilhelmina Rumahlewang Wilhemina Rumahlewang Yansen Lakburlawal Yuliati Mahfud Yusi Firmansyah Yusuf Rahman Yusup Hidayat Zellya Handyman