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All Journal Jurnal Ilmu Pertanian Indonesia Jurnal Hortikultura Indonesia (JHI) Jurnal Ilmu Tanah dan Lingkungan (Journal of Soil Science and Environment) Journal of Tropical Soils Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Jurnal Hortikultura JTSL (Jurnal Tanah dan Sumberdaya Lahan) Jurnal Kimia Riset Jurnal Penelitian Sains Jurnal Penelitian Kelapa Sawit Agroekoteknologi Tropika Lembab Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) BioEksakta : Jurnal Ilmiah Biologi Unsoed Business Review and Case Studies Jurnal Abdimas Kartika Wijayakusuma COMSERVA: Jurnal Penelitian dan Pengabdian Masyarakat Jurnal Sains Terapan : Wahana Informasi dan Alih Teknologi Pertanian Prosiding Seminar Nasional Biologi
Fahrizal Hazra
Departemen Ilmu Tanah Dan Sumberdaya Lahan, Fakultas Pertanian, Institut Pertanian Bogor, Jl. Meranti Kampus IPB Dramaga, Bogor 16680
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Mathematics Physics Social Sciences Veterinary Other

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Kualitas dan Produksi Vermikompos Menggunakan Cacing African Night Crawler (Eudrilus eugeniae): Quality and Production of Vermicompost Using African Night Crawler Worms (Eudrilus eugeniae) Fahrizal Hazra; Nabila Dianisa; Rahayu Widyastuti
Jurnal Ilmu Tanah dan Lingkungan Vol 20 No 2 (2018): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (308.341 KB) | DOI: 10.29244/jitl.20.2.77-81

Abstract

Adding organic fertilizer such as vermicompost can be done to overcome the deficiency problem of soil organic matter. One of the worm species which can be used in vermicomposting is Eudrilus eugeniae. Purpose of this research was to know how the combination of cow dung and rice straw impacts vermicompost quality from organic carbon, N, P, total K, urease enzyme activity and vermicompost production. Treatment that used in this research is randomized completely design with 4 treatments. The treatments are P1: feed 400 g of cow dung, P2: feed 400 g of rice straw, P3: feed 280 g of cow dung and 120 g of rice straw, and P4: feed 140 g of cow dung and 60 g of rice straw. The research result shows that real treatment impacts all parameters on the produced vermicompost. Production result is determined by ratio value of output/input (O/I). Quality and production of vermicompost on P4 is a treatment with the best result. It is because the combination of cow dung and rice straw gives a relatively complete macro nutrient result and the higher feed dose will gives higher vermicompost production.
Aplikasi Bakteri Endofit dan Mikoriza Terhadap Kandungan Unsur N, P dan K pada Pembibitan Tanaman Lada: Application of Endophytic Bacteria and Mycorrhizal toward N, P, and K Content of Pepper Seedling Fahrizal Hazra; Gusmaini Gusmaini; Devi Wijayanti
Jurnal Ilmu Tanah dan Lingkungan Vol 21 No 1 (2019): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (336.01 KB) | DOI: 10.29244/jitl.21.1.42-50

Abstract

Application of endophytic bacterial formulas and mycorrhizal expected to improve the quality of seedling in pepper. This research aims to determine the effect of endophytic bacterial formulas and mycorrhizal to the absorption of N, P, and K in Podsolik Jasinga, and the growth of pepper in seedling phase. The research method used randomized block design grouped by replication. Endophytic bacteria formulas types (B2), (B3) and without endophytic bacterial formulas (B0) as the first factor. Mycorrhiza with three levels, without mycorrhizal (M0), 10 g plant-1 (M1) and 20 g plant-1 (M2) as the second factor. The treatments tested were nine combinations and each treatment was repeated three times. This experiment obtained 27 experimental units. Each replication represented by five plants, so there were 135 plants. In general, endophytic bacteria formula of and mycorrhizal 10 g plant-1 (M1) is better to increasing the vegetative phase of pepper plants.
Effectiveness of MZ2000 Mycorrhizal Biofertilizer on The Growth of Sengon Seedlings Fahrizal Hazra; Rifqi Puja Novtiar
Jurnal Ilmu Tanah dan Lingkungan Vol 22 No 1 (2020): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitl.22.1.35-39

Abstract

Mycorrhizal biofertilizers contain fungi that are capable of entering and symbiotic mutualism into plant roots and increasing the ability of plants to absorb nutrients. Fertilizer effectiveness testing is needed to protect consumers from the adverse effects of using biofertilizers. This study aims to determine the effectiveness of MZ2000 mycorrhizal biofertilizers and to know mycorrhizal root infections in sengon seedlings in nurseries. The combination treatment of 30 g MZ2000 mycorrhizal biofertilizer with 5 g NPK fertilizer gave the best sengon growth results although it was not significantly different in several parameters compared to the combination treatment of MZ2000 fertilizer dosage and other NPK fertilizers, with the value of agronomic relativity (Relative Agronomic Effectiveness / RAE) 580.80% for high growth and 288.72% for growth in stem diameter and incremental benefit cost ratio (IBCR) analysis of farming by 2.48. So that the dosage of the combination treatment of mycorrhizal biofertilizers and NPK fertilizer is most agronomically and economically effective. With the effectiveness of the fertilizer, the MZ2000 mycorrhizal biofertilizer can be declared to have passed the field effectiveness test.
Aplikasi Pupuk Hayati Mikoriza terhadap Tanaman Bawang Merah (Allium cepa var. aggregatum) pada Latosol Dramaga: Application of Mycorrhizal Biofertilizer on Shallot (Allium cepa var. aggregatum) Plant on Latosol Dramaga Fahrizal Hazra; Fatimah Nur Istiqomah; Lusiana Adriani
Jurnal Ilmu Tanah dan Lingkungan Vol 23 No 2 (2021): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitl.23.2.61-67

Abstract

Mycorrhizal bio-fertilizers can maintain land productivity and are environmentally friendly. This study aims to analyze the effect of mycorrhizal biofertilizer on the growth of shallots (Allium cepa var. Aggregatum) and to determine root infection and its effect on soil N, P, K levels. The experimental design used was a completely randomized design (CRD). The treatment of biological fertilizer testing is carried out based on the Regulation of the Minister of Agriculture No. 70 / Permentan / SR. 140/10/2011, consisting of 6 treatments (AF) as follows: A) control, B) standard fertilizers, C) mycorrhizal biological fertilizers, D) mycorrhizal biological fertilizers + 25% standard fertilizers, E) mycorrhizal biological fertilizers + 50% standard fertilizer, F) mycorrhizal biological fertilizer + 75% standard fertilizer. There were 5 replications so that 30 experimental units were obtained. Mycorrhizal bio-fertilizers can reduce the need for standard fertilizers (PS) to 25% to 50%. The combination of biological fertilizer of 2.5 g / plant with 50% PS produces the best plant height and biomass weight, but economically it is recommended to use 25% PS. The treatment applied to mycorrhizae had a very high root infection value, which was above 75%. The types of spores that were successfully associated were Acaulospora sp., Glomus etunicatum, and Glomus sp. The application of mycorrhizae resulted in an increased response of 14.91% for P-available Latosol, while for K-dd and N-total there was no significant effect.
Evaluasi Penggunaan Pupuk Hayati pada Pertumbuhan Tanaman Alpukat (Persea americana Mill.) di Kebun Superavo, Subang: Evaluation of the Use of Biofertilizer on the Growth of Avocado Plants (Persea americana Mill.) at Superavo Orchard, Subang Fahrizal Hazra; Dwi Andreas Santosa
Jurnal Ilmu Tanah dan Lingkungan Vol 24 No 1 (2022): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitl.24.1.14-19

Abstract

Increasing the amount of avocado production is influenced by the effectiveness of fertilization. Fertilization is the most important thing in agriculture to improve plant nutrition, achieve high yields, and change the soil environment. The use of biofertilizer is needed to improve the quality and quantity of plants and reduce the chance of land degradation. The experimental design used was a randomized block design (RBD) with a single factor in fertilization. This RAK has nine treatment levels, namely: 1) control (without NPK and biofertilizer), 2) 100% NPK fertilizer, 3) 50% NPK fertilizer, 4) 100% NPK fertilizer + 100% biofertilizer, 5) NPK fertilizer 100% + 50% biofertilizer, 6) 50% NPK fertilizer + 100% biofertilizer, 7) 50% NPK fertilizer + 50% biofertilizer, 8) 100% biofertilizer, 9) 50% biofertilizer. This treatment was repeated five times. The use of NPK as a combination and substitution of biofertilizer. The basic fertilizer used, namely manure as much as 1.25 kg/tree. Overall, the best treatment was a combination of NPK fertilizer and biological fertilizer, especially in the P3 treatment, namely a combination of 100% NPK and 100% biological fertilizer. This can be seen in the vegetative growth of avocado plants and the soil's chemical and biological analysis, which have increased. Significant results occurred in plant height, the number of tertiary branches, total N, and soil invertase activity.
Peran Kompos dan Mikoriza pada Pertumbuhan Tanaman Tomat (Solanum lycopersicum) di Tanah Berpasir Fahrizal Hazra; Dimas Syahiddin; Rahayu Widyastuti
Jurnal Agroekoteknologi Tropika Lembab Vol 4, No 2 (2022): Agroekoteknologi Tropika Lembab Volume 4 Nomor 2 Februari 2022
Publisher : Mulawarman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35941/jatl.4.2.2022.7003.113-122

Abstract

Kompos merupakan bahan pembenah tanah (amelioran) yang umum digunakan dan dapat ditingkatkan kualitasnya dengan penambahan mikrob fungsional seperti mikoriza. Mikoriza adalah kelompok fungi yang dapat bersimbiosis dengan tanaman pada sistem perakaran. Penelitian ini bertujuan menganalisis pengaruh pemberian kompos dan mikoriza terhadap pertumbuhan tanaman tomat (Solanum lycopersicum) pada tanah berpasir. Penelitian ini dilakukan dengan menggunakan Rancangan Acak Lengkap (RAL) dengan 11 perlakuan yang terdiri dari kontrol dan dua faktor perlakuan. Faktor pertama adalah persentase dosis kompos dan faktor kedua adalah dosis mikoriza. Faktor persentase dosis kompos terdiri atas 150% kompos (K1), 100% kompos (K2), 75% kompos (K3), 50% Kompos (K4), dan 25% Kompos (K5), sedangkan faktor dosis mikoriza terdiri atas 5g (M1) dan 2.5g (M2). Pertumbuhan tanaman diamati hingga fase vegetatif lalu dilakukan analisis kimia dan penghitungan persentase kolonisasi akar serta jumlah spora mikoriza. Perlakuan 150% kompos dengan dosis 2.5g mikoriza memilik nilai tinggi tanaman terbaik sebesar 74.70 cm dan jumlah helai daun sebanyak 314 helai. Kadar N-total tertinggi yaitu 0.30% terdapat pada kombinasi perlakuan 150% kompos dengan 5g mikoriza ataupun dengan 2.5g mikoriza. Persentase kolonisasi akar tertinggi sebesar 50% dan kadar P-tersedia tanah tertinggi yaitu 32.5 mg/100g pada perlakuan 150% kompos dengan dosis 5g mikoriza.
Eksplorasi Bakteri yang Berpotensi sebagai Pengendali Hama Ulat Grayak (Spodoptera litura) (Exploration of Potential Bacteria as Biological Control of Spodoptera litura) Wilhelmus Terang Arga Sanjaya; Desak Ketut Tristiana Sukmadewi; Fahrizal Hazra; Aisamrotul Hasanah; Dwi Andreas Santosa
Jurnal Hortikultura Vol 30, No 2 (2020): Desember 2020
Publisher : Indonesian Center for Horticulture Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jhort.v30n2.2020.p133-140

Abstract

Usaha pengendalian hama ulat grayak (Spodoptera litura) di tingkat petani masih mengandalkan pestisida sintetik. Tujuan penelitian adalah mengeksplorasi bakteri potensial pengendali hama ulat grayak (S. litura) dan menguji ketahanan bakteri potensial pada bahan pembawa kompos dan zeolit. Isolat tanah diisolasi dari tiga jenis sumber, yaitu sampel tanah daerah rhizosfer (padi, kelapa sawit, terung, jagung), sampel buah busuk (kakao, kelapa sawit, jambu air), dan sampel bangkai serangga (ulat api, belalang, kumbang tahi, kupu-kupu) yang diambil dari kawasan Dramaga dengan metode purposive sampling. Penelitian di laboratorium meliputi isolasi bakteri, uji patogenitas, pewarnaan gram, pengamatan morfologi koloni, uji toksisitas, uji biokimia, dan uji bahan pembawa. Berdasarkan penelitian ini didapatkan dua strain yang berpotensi sebagai agens biokontrol dengan kemampuan membunuh hama yang tinggi pada pengujian toksisitas tahap kedua, yaitu IRJ 10 (tingkat kematian 90%) dan ISU 4 (tingkat kematian 100%). Kedua isolat ini merupakan anggota genus Bacillus. Pada uji bahan pembawa kompos dan zeolit, penurunan jumlah sel bakteri pengendali hama paling tinggi adalah pada bahan pembawa zeolit dibandingkan dengan menggunakan bahan pembawa kompos. Jumlah sel bakteri pengendali hama pada masa penyimpanan 3 minggu masih di atas 108 CFU/g.KeywordsBakteri; Bahan pembawa; Ekplorasi; Agens pengendali hama; Ulat grayak (Spodoptera litura)AbstractThe effort to control the Spodoptera litura at the farm level still used synthetic pesticides. This research aimed to explore potential bacteria as biological control of S. litura and do viability test of potential bacteria on compost and zeolite carrier. Soil potential bacteria had been isolated from three sources, including rhizosphere soil samples (rice, oil palm, eggplant, corn), rotten fruit samples (cocoa, oil palm, water), and insect samples (fireworms, locusts, dung beetles, butterflies) taken from Dramaga area with the purposive sampling method. Stages of laboratory study include isolation of bacterial isolates, pathogenicity tests, gram staining, colony morphology observation, toxicity test, biochemical test, and viability test. Two strains that have potential as biocontrol agents with a high ability to kill pests in the second stage of toxicity testing are IRJ 10 (90% mortality rate) and ISU 4 (100% mortality rate). Both of these isolates are members of the genus Bacillus. The highest number of viability was found in zeolite carriers. The number of bacterial cells in the three-week storage period is still above 108 CFU/g.
Soil Chemical Characteristics of Organic and Conventional Agriculture Muhammad Abdul Aziz; Fahrizal Hazra; Selly Salma; Dedi Nursyamsi Nursyamsi
JOURNAL OF TROPICAL SOILS Vol 21, No 1: January 2016
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2016.v21i1.19-25

Abstract

Use of chemical fertilizers and pesticides on intensive land of both lowland and upland food crops have been shown to increase agricultural productivity significantly. Research aimed to study soil chemical characteristics and soil pesticide residues at some crops of organic and conventional farms. The research was carried out in  Laboratory of Soil Chemistry, Indonesian Soil Research Institute and in Laboratory of Agrochemical Residue, Indonesian Agricultural Environment Research Institute, Bogor from February to July 2015. Soil samples at 0-10 cm depth were taken compositely from broccoli (Brassica oleracea), carrots (Daucus carota), maize (Zea mays), and tomatoes (Solanum lycopersicum) farms in Bogor Regency as well as from rice field in Tasikmalaya Regency at both organic and conventional farms. Soil chemical characteristics were analyzed include: soil organic-C (Walkey and Black), total-N (Kjeldahl), potential-P (HCl 25%), available-P (Olsen), potential-K (HCl 25%), available-K (NH4OAc 1 N pH 7), CEC (NH4OAc 1 N pH 7), and pH (soil : water = 1: 5), while pesticide residues included levels of organochlorine (lindane, aldrin, heptaklor, dieldrin, DDT, endosulfan); organophosphates (diazinon, fenitrotin, metidation, paration, profenofos); and carbamates (carbofuran, MIPC, BPMC) in the soil by using Gas Chromatography method. Results showed that levels of soil organic-C, total-N, potential and available-P, potential and available-K, CEC, pH  at organic farms were higher than those at conventional farms. Some pesticide residues compound (organochlorines, organophosphates, and carbamates) were detected at conventional farm, while those at organic farm were not detected (trace).Keywords: Conventional farm, organic farm, pesticide residues, soil properties. [How to Cite: Muhammad AA, F Hazra, S Salma and D Nursyamsi. 2016. Soil Chemical Characteristics of Organic and Conventional Agriculture. J Trop Soils 21: 19-25. Doi: 10.5400/jts.2016.21.1.19] 
Soil Enzyme Activities and Their Relationship to Total Soil Bacteria, Soil Microbial Biomass and Soil Chemical Characteristics of Organic and Conventional Farming Muhammad Abdul Aziz; Fahrizal Hazra; Selly Salma; Dedi Nursyamsi
JOURNAL OF TROPICAL SOILS Vol 23, No 3: September 2018
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2018.v23i3.133-141

Abstract

Soil properties such as physical, chemical, biological, microbiological and biochemical aspects affect on soil quality. Soil microbiological activities directly affect stability of ecosystems and soil fertility. The research aimed to determine soil microbial activities through soil enzyme activities and their relationship to total soil bacteria, soil microbial biomass, and soil chemical characteristics. The research was conducted at Laboratory of Soil Microbiology, Indonesian Soil Research Institute, Bogor from July 2015 to January 2016. Soil samples 0-10 cm depth were taken from organic and conventional farming of some commodities (tomato, carrot, maize, broccoli) from Bogor Regency, while those of rice were taken from Tasikmalaya Regency. Soil dehydrogenase, urease and cellulase activities were determined using some modified methods. The results showed that soil dehydrogenase and cellulase activities in organic farming were higher than those in conventional farming, whereas the soil urease activity in organic farming was lower than that in conventional farming. The total soil bacteria and soil microbial biomass were significantly and positively correlated with soil dehydrogenase, urease, and cellulose activities. Soil dehydrogenase, urease, and cellulose activities were very significantly and positively correlated with all soil characteristics tested, i.e. soil organic C, total N, potential P and K, available P and K, CEC, and pH, except that soil urease activity was very significantly and negatively correlated with soil pH. The results of this research indicated that organic farming is recommended for maintaining soil fertility and plant productivity; however, small use of urea fertilizer is still needed in the farming.
To Biomassa Tempurung Buah nyamplung (Callophyllum spp) untuk Pembuatan Briket Arang sebagai Bahan Bakar Alternatif Fahrizal Hazra; Novita Sari
Jurnal Sains Terapan : Wahana Informasi dan Alih Teknologi Pertanian Vol. 1 No. 1 (2011): Jurnal Sains Terapan, Volume 1, Nomor 1, Tahun 2011
Publisher : IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (354.301 KB) | DOI: 10.29244/jstsv.1.1.8-13

Abstract

Nyamplung shell is a biomass whose existence has not been optimally utilized. Biomass is a solid waste that can be used again as a source of fuel. Favorable characteristics of the biomass is an energy source that can be utilized in a sustainable manner because it is renewable. Biomass of Nyamplung shell can be processed become a form of solid fuel with a same specific dimension, it is resulting from compression of bulk materials, powders, and the relatively small size commonly referred to as charcoal briquettes.  The aim of this research is to test the feasibility of nyamplung shell as a raw material for making briquettes on the households by conducting analysis of quality parameters briquette specimens including physical properties (water content, calor value, and density), briquette durability (persistence press), chemical (ash content, fixed carbon and volatile matter content) and the rate of burning charcoal briquette.  The treatment in this aim is a mixture composition of raw materials (charcoal of Nyamplung shell) who were given the same amount of adhesive and compressed by compressing hydraulic briquette. The results showed that, charcoal briquettes made from the Calophyllum shell can be used as alternative energy, with a characteristic range of values from 3,39-3,83% moisture content, calor value ranges from 3.646,14-5.431,35 calories / gram, the range of density values 0,663-0,721 gram/cm3, the range of persistence press value 1,98-5,39 kg/cm2, the range of ash content value 19,89-24,51%, the range of fixed carbon value 33,09-40,86%, the range of volatile matter value 35,03-38,57%, and the range of rate of burning from 0,0574-0,0898 grams/second. The low value of moisture content can lead to higher heating value of charcoal briquettes. High/low levels of volatile could affect fast/slow rate of burning charcoal briquettes. Key words : nyamplung shell, biomass, charcoal briquette
Co-Authors Aisamrotul Hasanah Ania Citraresmini Ans Iswandi Apriana, Edwin Arrahman, Naufal Auliana Azzahra, Bella Budi Nugroho Deden Saprudin Dedi Nursyamsi Dedi Nursyamsi Dedi Nursyamsi Nursyamsi Devi Wijayanti Dewi Rosita Dian Emilia Maulidiyah Dimas Syahiddin DWI ANDREAS SANTOSA Enny Widyati Eric Verchius Eris, Deden Dewantara Ester LN Lumbantobing Etty Pratiwi, Etty Fadhilla Br Siregar, Rizky Tri Fadhilla, Ardina Nurul Fatimah Nur Istiqomah Fatimah Nur Istiqomah Firdaus, Ibrahim Dhiaulhaq Fitriyani, Indri Hapsari Grahan Sugeng Aprilian Gusmaini Gusmaini Heni Hariyani Hetty Novita Agus Indri Hapsari Fitriyani Indriyati, Lilik Tri Intan Delia Rustandi Irfan Septiawan Istiqomah, Fatimah Nur Iswandi Anas Kevin Setiawan Latief Mahir Rachman Latief Mahir Rachman Lisa Rosdiana Lisdar Idwan Sudirman Lusiana Adriani Mentari May Syachanna Mohammad Khotib Muhammad Abdul Aziz Muhammad Abdul Aziz Muhammad Farid Muhammad Samsul Maarif Nabila Dianisa Novita Sari Nur Istiqomah, Fatimah Nursyamsi, Dedi Nursyamsi Nurul Fadilla, Ardina Rafid Nanda Saputra RAHAYU WIDYASTUTI Rahma Anisa Rahmadani, Ghina Radhiyya Richard Gunawan Rifqi Puja Novtiar Rio Kevin Marcello Alwi Risa Rosita Rizqi Novanto, Praditya Rosinta Sitepu ROSITA, Risa RR. Ella Evrita Hestiandari Selly Salma Selly Salma Selly Salma Sindy Marieta Putri Sukmadewi, Desak Ketut Tristiana Suri Mulyani Sari Susanti Pratiwi Purnama Syifa, Sayyidatul Alfi Umar, Ali Velicia Desyana Rakhmadina Wilhelmus Terang Arga Sanjaya Windi Windi Yunilda Rosa Yuwan Pratama Baki