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All Journal JURNAL HUTAN LESTARI BAHASA DAN SASTRA Profetika TERRA : Journal of Land Restoration Angkasa: Jurnal Ilmiah Bidang Teknologi EduReligia : Jurnal Pendidikan Agama Islam Jurnal Ilmu dan Teknologi Kayu Tropis PERENNIAL Bahtera Indonesia; Jurnal Penelitian Bahasa dan Sastra Indonesia ULIN: Jurnal Hutan Tropis Akta Agrosia TIN: TERAPAN INFORMATIKA NUSANTARA As Sibyan : Jurnal Kajian Kritis Pendidikan Islam dan Manajemen Pendidikan Dasar Wedana: Jurnal Kajian Pemerintahan, Politik, dan Birokrasi Jurnal Teknik Sipil Cendekia (JTSC) JUSTIAN - Jurnal Sistem Informasi Akuntansi Indo-MathEdu Intellectuals Journal Ensiklopedia: Jurnal Pendidikan dan Inovasi Pembelajaran Saburai East Asian Journal of Multidisciplinary Research (EAJMR) Formosa Journal of Multidisciplinary Research (FJMR) Teknika Jurnal ADAM : Jurnal Pengabdian Masyarakat POLICY, LAW, NOTARY AND REGULATORY ISSUES (POLRI) Indonesian Journal of Muhammadiyah Studies (ijmus) Jurnal Pengabdian Mandiri Journal of Smart Education and Learning

Marwanto Marwanto, Marwanto

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Author-ID : 618921

Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Neuroscience Nursing Physics Social Sciences Veterinary Other

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Delivery of Arbuscular Mycorrhiza Fungus Spores via Seed Coating with Biodegradable Binders for Enhancement of the Spores Viability and Their Beneficial Properties in Maize Marwanto, Marwanto; Bustaman, Hendri; Handajaningsih, Merakati; Supanjani, Supanjani; Murcitro, Bambang Gonggo; Salamah, Umi
Akta Agrosia Vol 23, No 1 (2020)
Publisher : Faculty of Agriculture, The University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/aa.23.1.1-10

biodegradable polymer such as PVA is considered the most promising candidates for developing the sustainable sticker. The objective of this study was to determine the most suitable PVA + TS blends as adhesives agent for AMF spores inoculation via seed coating which can enhance the spores viability and their beneficial properties in maize. The polythene bag experiment was performed in a screen house of the Department of Plant Protection Faculty of Agriculture, University of Bengkulu Indonesia in 2015. Six adhesive blends were employed: 100% PVA + 0% TS, 75% PVA + 25% TS, 50% PVA + 50% TS, 25% PVA + 75% TS, 0% PVA + 100% TS, and no coating. The six experimental treatments were laid out in a completely randomized design with three replications. The results show that root colonization, AMF spore population, and shoot dry weight in 75% PVA + 25% TS were equal to those in 100% PVA. Root colonization, AMF spore population, shoot P content, and shoot P concentration were greater for 50% PVA + 50% TS than 100% PVA, 100% TS, and no coating. A mixture of 50% PVA + 50% TS was considered the preferred sticker. Thus, the tapioca starch can be used to substitute 25 - 50% of the PVA used without reducing AMF inoculant adhering to seed.Keywords: polymeric seed coating, seed coating formulation, arbuscular mycorrhizal fungi, sustainable coating adhesive, seed inoculation, seed inoculant

Effect of Oil-Palm-Empty-Fruit-Bunch Granular Organic Fertilizer on The Yield 0f Oil Palm Fruit Indah, Susi Puspita; Hermansyah, Hermansyah; Hasanudin, Hasanudin; Marwanto, Marwanto
Akta Agrosia Vol 20 No 2 (2017)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (814.856 KB)

Oil Palm has a strategic role in the Indonesian economy. The use of anorganic fertilizers in the cultivation of Oil Palm is to add nutrients to optimize the growth and yield of plants. The use of anorganic fertilizers significantly increase crop production, but the use of anorganic fertilizers in a relatively long time period has negative impact on soil conditions. The use of organic fertilizers can be an alternative in reducing the negative impact of the use of anorganic fertilizers. Compost of empty fruit bunch (EFB) of oil palm has the potential to substitute most of the nutrients needed by plants. This study aimed to determine the effect of local organic fertilizers on yields of oil palm. The research was implemented from January 2016 until March 2016, in the oil palm plantation area of PT Bio Nusantara Bengkulu, Village of Pondok Kelapa, Central Bengkulu Regency, Bengkulu. Dose of EFB was as treatment in this study, consisted of control, 4 kg EFB /plant, 8 kg /plant, 12 kg /plant, 16 kg /plant. The treatment was repeated three times with 10 plants per treatment unit in order to obtain 150 samples. The results showed that the dose 21.03 kg EFB can improve the greenish of leaves with the result of 78.65. Dose of EFB 15.38 kg/plant was able to increase the weight of loose/detached fruit to 12.22 grams. The 10.5 kg mesocarp thickness reached 0.96 cm when the plant was treated with EFB 10.5 kg/plant.Keywords: compost, empty fruit bunch, oil palm, organic fertilizer, yield

Pematahan Dormansi Benih Kebiul (Caesalphinia bonduc L.) dengan Berbagai Metode Uyatmi, Yesi; Inoriah, Entang; Marwanto, Marwanto
Akta Agrosia Vol 19 No 2 (2016)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (318.348 KB)

Seed of Caesalpinia bonduc L. is difficult to germinate due to the thick and hard seed coat. The research aims to evaluate various methods for breaking dormancy of C. bonduc seed. This study was conducted from December to January 2016 The way to break the dormancy were arranged in Completely Randomized Design. Eleven methods to solve the seed dormancy of C. bonduc were compared. The ways to break the dormancy were soaking in water with different temperatures. The temperatures were 30C for 0 hours, 5 hours, 10 hours, and 15 hours. Other techniques to break the dormancy were soaking in hot water at 10000C for 5 hours, 10 hours, and 15 hours. Warm stratification with 100% air humidity (RH) at 40C for five days, ten days and 15 days also included as treatments. The last method was seed piercing with a needle. The variables observed in this study were germination capacity, germination rate, epicotyl length, plant height, and root length. The results of this study showed that the 11 methods of breaking seed dorman cy significantly affected germination capacity, germination rate, emerging epicotyl, and plant height. Seed piercing classified as the most efficient method as indicated by the value of 100% in germination capacity, 1.43 in germination rate, 13.64 cm in plant height, and 6.16 cm in root length.0

Growth and Yield Response of Melon to Different Time Application of Goat Manure and Dose of Potassium Handajaningsih, Merakati; Marwanto, Marwanto; Armitasari, Tri; Inoriah, Entang; Pujiwati, Hesti
Akta Agrosia Vol 21 No 1 (2018)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (924.045 KB)

Goat manure contains high potassium, thus it is expected to reduce the usage of synthetic potassium fertilizer. Incubation of goat manure is needed prior to planting since the nutrients are slow release. The objective of the experiment was to find the best time application and dose of potassium on growth and yield of melon. Container experiment using polybags was set in Completely Randomized Design. Goat manure were incorporated into soil at the time of transplanting (0 DBT), 5 days before transplanting (5 DBT), and 10 DBT. The dose of potassium was consisted of 0 kg/ha, 200 kg/ ha and 400 kg/ha. The treatments were repeated 3 times, each of which consisted of 4 plants. Growth and yield of plants showed no response to the interaction between the two factors of treatment. Single effect of time applicaton of goat manure 10 DBT affected leaf area (1619.51 cm2), fruit weight (872 g), fruit diameter (16.19 cm) and the thickness of edible fruit part (2.61 cm). The dose of potassium 400 kg/ha increased fruit sweetness to 8.20Brix.

Effects of Combined Application of Cow Manure And Inorganic Nitrogen Fertilizer on Growth, Yield and Nitrogen Uptake of Black Rice Marwanto, Marwanto; Nasiroh, Nasiroh; Mucitro, Bambang G.; Handajaningsih, Merakati
Akta Agrosia Vol 21 No 2 (2018)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (704.577 KB)

The beneficial effects of manure on soil properties, growth, and crop productivity have promoted its use for replacing the application of N fertilizer. However, it is not well understood to what extent N fertilizer was able to be substituted by cow manure. Accordingly, this pot experiment aimed to compare the effect of inorganic N fertilizer application alone with that of the combined use of inorganic N fertilizer with cow manure based on the same amount of total N on growth parameters, yield attributes, and nitrogen (N) uptake of black rice. The experiment was conducted under a screen house condition in Agriculture Faculty, Bengkulu University located at 15 meters altitude above sea level during the summer season of 2015. There were six treatments viz. T1 = 100% N from urea + 0% N from cow manure (0.52 g N + 0.00 g cow manure) pot-1, T2 = 80% N from urea + 20% N from cow manure (0.42 g N + 9.55 g cow manure) pot-1, T3 = 60% N from urea + 40% N from cow manure (0.31 g N + 19.10 g cow manure) pot-1, T4 = 40% N from urea + 60% N from cow manure (0.21 g N + 28.65 g cow manure) pot-1, T5 = 20% N from urea + 80% N from cow manure (0.10 g N+ 38.20 g cow manure) pot-1, and T6 = 0% N from urea + 100% N from cow manure (0.00 g N + 47.75 g cow manure) pot-1. The amount of inorganic N fertilizer in the form of urea and cow manure applied was calculated based on the recommended rate of 115.00 kg ha-1 for N fertilizer and 10.50 ton ha-1 for cow manure. These treatments were arranged in a Completely Randomized Design and repeated three times. The results showed that the treatments significantly (P ?0.005) affected growth parameters as measured by plant height, the number of leaves, fresh shoot weight, fresh root weight, dry shoot weight, dry root weight, yield attributes as determined by the total number of tillers, the total number productive tillers, grain yield per pot, and N uptake. The highest values for all these variables were obtained in the treatment receiving recommended rate of urea only (100% N from urea + 0% N from cow manure as equivalence) and the lowest in the treatment receiving a100% N from cow manure (0% N from urea + 100% N from cow manure). However, combined treatments of cow manure and inorganic N fertilizer such as 80% N from urea + 20% N from cow manure, 60% N from urea + 40% N from cow manure 40% N from urea + 60% N from cow manure showed a parity statistically with the treatment receiving 100% N from urea only in maintaining the values for all these variables. Overall, the combined use of inorganic N fertilizer (urea) and cow manure as an equivalence promoted growth and yield of black rice by improving N uptake. Keywords: integrated nutrient management, soil chemical property, Nitrogen uptake, combined fertilizer application, black rice

Different Compost Materials Used as Source of Organic Matter in Production of Chili Pepper Sumbayak, Roy S.O.; Handajaningsih, Merakati; Hartal, Hartal; Marwanto, Marwanto
Akta Agrosia Vol 22 No 1 (2019)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (812.502 KB)

Compost has been commonly used as the primary organic matter in organic plant production, especially in vegetable production. Different sources of compost materials give different medium structures and chemical characteristics. The objectives of this research were: 1) to evaluate the response of growth and yield of chili pepper to a rate of compost and source of animal waste which were used as compost; 2) to determine the optimum rate of fertilizer for the highest growth and yield of chili pepper. The research was carried out from November 2015 until March 2016. Compost material treatments consisted of cow dung, empty palm oil bunches, and mixed of vegetable residue and weeds. The compost rate treatments consisted of 0 ton ha-1, 10 ton ha-1, 20 ton ha-1, and 30 ton ha-1. No interaction between the two treatments was found to influence plant growth and yield variables. The type of compost materials affected plant height of 5, 6, and7 weeks after transplanting. Cow dung as a source of compost showed the best effect in increasing chili plant height. Plant height, the number of plant dichotomous, and plant canopy responded linearly to the increase of the compost rate. The usage of compost at 20 ton ha-1 and 30 ha-1 resulted in higher fruit length, the number of fruit, and fruit weight per plant. Keywords: chili pepper, compost, organic, growth, yield

Bio-fortified Compost as A Substitute for Chemical N Fertilizer for Growth, N Accumulation, and Yield of Sweet Corn Marwanto, Marwanto; Wati, Shinta Puspita; Romeida, Atra; Handajaningsih, Merakati; Adiprasetyo, Teguh; Hidayat, Hidayat; Purnomo, Bambang; Murcitro, Bambang Gonggo; Siswanto, Usman
Akta Agrosia Vol 22 No 2 (2019)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

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ABSTRACTFinding the appropriate method of fertilizer application to simultaneously enhance farm productivity and ensure ecosystem sustainability has been receiving a lot of attention. A field experiment was carried in the Research Plot Agriculture Faculty Bengkulu University Campus Indonesia in 2017. The purpose of this study was (1) to assess the significant effects of inorganic N fertilizer (IF) substitution with bio-fortified compost (BC) under equal N conditions on growth, N accumulation, and yield of sweet corn, and (2) to determine the appropriate level to which inorganic N fertilizer could be reduced and equivalently replaced by bio-fortified compost to promote sweet corn growth and yield. The treatments consisted of six different proportions of inorganic N fertilizer (IF) substitution with bio-fortified compost (BC). Each treatment was designed on the basis of equal amount of total N input from a combination of both fertilizers (138 kg N ha-1). They were arranged in a randomized block design with 3 replications. They included (1) 100% IF plus 0% BC, (2) 75% IF plus 25% BC, (3) 50% IF plus 50% BC, (4) 25% IF plus 75%, (5) 0% IF plus 100% BC, and (6) no IF and no BC. The results showed that the increasing proportion of IF replaced by BC resulted in an increase for all variables (except for plant height) but they decreased when 100% IF substitution with 100% BC was applied. Among the partial substitution treatments, 50% IF plus 50% BC consistently produced the best growth, N accumulation, and yield increase. Treatments of 50% IF plus 50% BC and 25% IF plus 75% BC produced the highest green cob weight with husk per plot (10.74 – 10.84 kg plot-1), which was 16% to 19% higher than treatment of 100% IF plus % BC. The three partial substitution treatments produced crop yield components as good as treatment of 100% IF plus 0% BC. Treatment of 0% IF plus 100% BC reduced plant growth, N accumulation, and crop yield and its components. The appropriate level to which IF could be reduced and equivalently replaced by BC was at the range of 25% to 75%. Hence, a suitable replacement of inorganic N fertilizer with bio-fortified compost is considered a reasoned way to simultaneously increase crop yield and reduce environmental degradation.Keywords: organic fertilizer, chemical fertilizer, bio-fortification, chemical fertilizer substitution, bio-fortified compost

Delivery of Arbuscular Mycorrhiza Fungus Spores via Seed Coating with Biodegradable Binders for Enhancement of the Spores Viability and Their Beneficial Properties in Maize Marwanto, Marwanto; Bustaman, Hendri; Handajaningsih, Merakati; Supanjani, Supanjani; Murcitro, Bambang Gonggo; Salamah, Umi
Akta Agrosia Vol 23 No 1 (2020)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

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Amelioration of Salinity Stressed Soil Using Natural Zeolite for Improving Soil Properties and Chinese Cabbage Agronomic Performances Romadhan, Tantrie D; Marwanto, Marwanto; Murcitro, Bambang G; Handajaningsih, Merakati
Akta Agrosia Vol 25 No 1 (2022)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

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Salinity stress is the major abiotic stress for crop production. The purpose of this study was to evaluate the effectiveness of zeolite on improving soil properties, the growth, and yield of Chinese cabbage. This pot experiment was conducted from September to November 2020 at the Research and Teaching Field of the Faculty of Agriculture, consisted of 6 treatment levels, i.e. (1) control, (2) soil + 6.9 g NaCl /10 kg soil, (3) soil + 6.9 g Na2SO4 /10 kg soil, (4) soil + 3.2 g zeolite /10 kg soil, (5) soil + 6.9 g NaCl /10 kg soil + 3.2 g zeolite /10 kg soil, and (6) soil + 6.9 g Na2SO4 /10 kg soil + 3.2 g zeolite /10 kg of soil, and arranged in a completely randomized design with 3 replications. The application of zeolite decreased the EC of salinized soil and increased the soil CEC. NaCl salinity stress reduced plant height (23%), number of leaves (22%), fresh weight of roots (165%), dry weight of roots (170%), stalk length (32%), and plant dry weight (131%), while Na2SO4 salinity stress only reduced the number of leaves (23%). The addition of zeolite to salinized NaCl soil increased stalk length (39%), plant fresh weight (172%), leaf fresh weight (174%), plant dry weight (133%), and leaf dry weight (23%), while to salinized Na2SO4 soil only increased plant dry weight (90%) and leaf dry weight (177%). The overall results show that the addition of zeolite can effectively ameliorate salinity stress due to NaCl.

Co-Authors Ahmad Soleh Ahmaluddin, Ahmaluddin Akhirani, Shinta Tiresa Alifia Revan Prananda Angga Kusumah, Angga Angraeni, Enita arianti, Wiwid Arif Mustofa Armitasari, Tri Atra Romeida Bambang Gonggo Murcitro Bambang Purnomo Bustaman, Hendri Bustaman, Hendri Desak Putu Dewi Kasih Eka Legya Frannita Estiningtyas, Naya Farah Diba Fauzi Febrianto Gayatri, Ida Ayu Made Er Meytha Guntur Cahyono, Guntur Hammam, Hammam Hartal, Hartal Hartawan, I Kadek Dony Hasan Ashari Oramahi Hasanudin Hasanudin Hendri Bustamam Hendro Purnomo Herlina Darwati Hermansyah Hermansyah HESTI PUJIwATI Hidayat Hidayat Hidayat, Anwar I Gede Yusa I Gusti Agung Mas Rwa Jayantiari, I Gusti Agung I Gusti Ketut Ariawan I Nyoman Jaya Wistara Ibrahim Musa, Ibrahim Ibrahim R Indah, Susi Puspita Inoriah, Entang Jekzen, Beni Jeniyansah, Feby Rantau Kumala, Ida Ayu Ratna Lilis Zulaicha Lolyta Sisillia Made Gde Subha Karma Resen Marsiana, Marsiana Maulana, Mohammad I Maulana, Sena Merakati Handajaningsih Mucitro, Bambang G. Munaf, Yusri Murcitro, Bambang G Nainggolan, Rizky Mangiring Tua Nanang Masruchin Nasiroh, Nasiroh Ninosari, Devina Nisa, Nur Harini Khoirun Nizar, M. Samsul Nugraha, Qynara Qynasih Nurcahyo, Edy Nurhaida Nurhaida Paramita, Sita Putra Anugrah Pratama, Vicky Rahmawati, Tria Bayu Romadhan, Tantrie D Safitri, Salsabela Nur Santosa, A.A.Gede Duwira Hadi Septiana Anggraini, Septiana Setioningsih, RETNOWATI Siti Maesaroh Siti Nikmatin Sofyan Zainal SRI FATMAWATI Suharjanto Suharjanto Sumadi, I Putu Sudarma Sumbayak, Roy S.O. Supanjani, Supanjani Supanjani, Supanjani Suryadinata Putra, Ketut Suyatna, Nyoman Taofik Hidayat, Taofik Teguh Adiprasetyo Tri Kuat, Tri Triyanto, Untung Umi Salamah Usman Siswanto Uyatmi, Yesi Wati, Shinta Puspita Widyastuti Widyastuti

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