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All Journal MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management Jurnal Hortikultura Indonesia (JHI) Journal of Tropical Soils JTSL (Jurnal Tanah dan Sumberdaya Lahan) Naturalis : Jurnal Penelitian Pengelolaan Sumberdaya Alam dan Lingkungan Jurnal Ilmu-Ilmu Pertanian Indonesia Cannarium (Jurnal Ilmu-ilmu Pertanian) AGRIVITA, Journal of Agricultural Science Mimbar Agribisnis: Jurnal Pemikiran Masyarakat Ilmiah Berwawasan Agribisnis TERRA : Journal of Land Restoration Martabe : Jurnal Pengabdian Kepada Masyarakat Seminar Nasional Lahan Suboptimal Akta Agrosia
Zainal Muktamar
Department Of Soil Science, University Of Bengkulu
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Economics, Econometrics & Finance Education Environmental Science Social Sciences Other

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Enhancing Soil Chemical Properties and Sweet Corn Growth by Solid Organic Amendments in Ultisol Sri Mega Sianturi; Zainal Muktamar; Mohammad Chozin
TERRA : Journal of Land Restoration Vol 2, No 1 (2019)
Publisher : Department of Soil Science, Faculty of Agriculture, University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1040.57 KB) | DOI: 10.31186/terra.2.1.1-8

Abstract

The negative impact of prolong and excessive application of synthetic fertilizers is a reason to reuse organic material as a plant nutrition resources and to enhance degraded soil. Organic materials such as animal and industrial wastes are commonly use as sources of organic amendment. The purpose of this study was to examine the changes in chemical properties of soil and the growth of sweet corn as affected by the application of solid organic fertilizers in Ultisol. This research was carried out in October 2016 until March 2017 at Greenhouse, University of Bengkulu, arranging in a Completely Randomized Design with two factors and three replications. The first factor was Organic amendment consisting of vermicompost, chicken manure, oil palm empty bunches compost (OPEBC). The second factors were rates of the amendment, i.e., 0, 10, 20, and 30 Mg ha-1. Results indicate that total soil organic carbon (TSOC) and total soil nitrogen (TSN) were not considerably different among types of organic amendments used in this study; however, an increase in soil pH and a decline of exchangeable Al are highest in the application of OPEBC as compared to others. Likewise, the growth of sweet corn was the best in soil amended with chicken manure. Soil chemical properties such as TSOC, TSN, soil pH significantly enhanced but exchangeable Al markedly lowered up to 20 Mg ha-1, then level off afterward. Sweet corn growth as indicated by plant height, shoot dry weight (SDW), and root dry weight (RDW) was also significant up to 20 Mg ha-1. This study suggests that the addition of organic amendment at a rate of 20 Mg ha-1 is sufficient to provide plant nutrient and improvement of soil properties for sweet corn growth.
Penghambatan Perkecambahan Akibat Aplikasi Ekstrak dari Tanaman Utama dan Ratun Sorgum (Sorghum bicolor L.) yang Diproduksi di Lahan Rawa Edi Susilo; Nanik Setyowati; Uswatun Nurjannah; Riwandi Riwandi; Zainal Muktamar
Seminar Nasional Lahan Suboptimal 2021: Prosiding Seminar Nasional Lahan Suboptimal ke-9 “Sustainable Urban Farming Guna Meningkatkan
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Abstract

Susilo E, Setyowati N, Nurjannah U, Riwandi, Muktamar Z. 2021. Inhibition of germination due to application of extracts from main plants and ratoon sorghum (Sorghum bicolor L.) produced in swamplands. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-9 Tahun 2021, Palembang  20 Oktober 2021. pp. 426-434.  Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI).Sorghum is one of the plants that produces allelopathic chemicals with bioherbicide potential. Water extract can be used to suppress weeds around planted plants. The water extract material's source has the potential to be used as a variety of bioherbicides. The goal of the study was to see if water extract of sorghum obtained from the main plant and ratoon growing in swampland with different test plants could hinder germination. A randomized block design was adopted in this investigation. The first factor is the extract's source, which is made up of the primary plant and ratoon. The second component was the test plants, which were Numbu and Suri 3 types. Experiments on Petri dishes used the bioassay method. Each petri dish received 10 mL of aqueous extract, 25 sorghum seeds, and was cultured for five days. The main plant had the largest germination inhibition, as evidenced by normal germination (33.78%), shorter radicle length (5.55 cm), and a higher number of non-growing seeds (47.12%). Furthermore, the Suri 3 variety had the maximum germination inhibition, with normal sprouts (34.65%), radicle length (5.10 cm), sprout wet weight (0.118 g), and radicle dry weight (0.118 g) in the test plant (0.0012 g). low, and seeds did not develop any faster (43.57 percent). These data suggest that the most allelopathic chemicals are produced by sorghum extract taken from the primary plant. Furthermore, the maximum inhibition was achieved using sorghum extract from the Numbu variety in combination with the Suri 3 test plant. As a result, the primary crop has the greatest potential as a bioherbicide source.
Pengaruh Dosis Vermikompos dan Pupuk ZA terhadap Pertumbuhan dan Produksi Kacang Panjang (Vigna sinensis L.) Dwita Ulandari; Nanik Setyowati; Sigit Sudjatmiko; Widodo Widodo; Zainal Muktamar
Seminar Nasional Lahan Suboptimal 2021: Prosiding Seminar Nasional Lahan Suboptimal ke-9 “Sustainable Urban Farming Guna Meningkatkan
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Abstract

Ulandari D, Setyowati N, Sudjatmiko S, Widodo W, Muktamar Z.  2021. Effect of vermicompost and ammonium nitrate dosage on growth and yield of long beans (Vigna sinensis L.) In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-9 Tahun 2021, Palembang 20 Oktober 2021. pp. 514- 523. Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI). The production of long beans (Vigna sinensis L.) can be increased through intensification or extensification, respectively. Intensification includes soil management activities, selection of superior varieties, pest and disease control, and fertilization. Fertilization is necessary for the improvement of long beans yield. The combination of organic and synthetic is necessary to maintain soil productivity. Such combination is vermicompost and ammonium nitrate fertilizer. The purpose of this study was to ascertain the effect of a combined dose of vermicompost and ammonium nitrate on long bean growth and yield. The study used Randomized Complete Block Design (RCBD) with 3 replications. The treatments were Vermicompost (V) 15 tons/ha, ZA 50 kg/ha, V 15 tons/ha + ZA 50 kg/ha, (V 15 tons/ha + ZA 100 kg/ha, V 15 tons/ha + ZA 150 kg/ha, V 15 tons/ha + ZA 200 kg/ha, and V 15 tons/ha + ZA 250 kg/ha. The results indicated that applying vermicompost alone or with ZA had no noticeable effect on plant growth and yield. There were no significant differences in plant height, pod length, pod diameter, number of seeds, number of pods, or pod weight between treatments. Long bean productivity is lower than its potential yield due to unfavorable environmental factors.
INTRODUKSI TEKNOLOGI VERMIKOMPOSTING DALAM UPAYA PENGELOLAAN LIMBAH PETERNAKAN DI DESA SRIKUNCORO, BENGKULU TENGAH Anandyawati Anandyawati; Mohammad Nur Dita Nugroho; Zainal Muktamar
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 5, No 2 (2022): Martabe : Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v5i2.708-716

Abstract

The great potential of Srikuncoro Village is from the agricultural and livestock sectors. The livestock sector, in addition to producing main products such as eggs, meat and milk, also produces by-products that have not been utilized properly. The product is livestock manure which if not managed properly will become livestock waste. One of the simple, easy, inexpensive and adaptive technologies is waste management through vermicomposting technology, which is a composting process carried out with the help of worms. The implementation of community service activities in Srikuncoro village is carried out through socialization and the practice of vermicomposting technology using Lumbricus rubellus worms. The activity was carried out from July to November 2021 and was attended by 20 members of the Lotus Farmer Group Association, Srikuncoro Village. This service activity resulted in several achievements, including: 1. Increased knowledge of the Srikuncoro village community (represented by members of the farmer group association) in livestock waste management through vermicomposting technology; 2. Increased knowledge about the cultivation of Lumbricus rubellus worms; 3. The emergence of public interest in making vermicomposting a side job (besides raising livestock) by building vermicomposting with the direction and guidance of a service team; and 4. The successful transfer of knowledge on vermicomposting technology from the service team to the community.
PENERAPAN TEKNOLOGI LUBANG RESAPAN BIOPORI SEBAGAI METODE SEDERHANA PENGELOLAAN KOMPOS LIMBAH RUMAH TANGGA DI DESA SRIKUNCORO, BENGKULU TENGAH Kanang Setyo Hindarto; Herry Gusmara; Zainal Muktamar
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 5, No 3 (2022): Martabe : Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v5i3.863-869

Abstract

Sampah telah menjadi permasalahan yang rumit sehingga dalam pengelolaannya perlu dilakukan secara komprehensif dan terpadu dari hulu ke hilir agar sampah dapat memberikan manfaat secara ekonomis, sehat bagi masyarakat, dan aman bagi lingkungan serta dapat merubah pola pikir yang ada di dalam masyarakat. Melalui teknologi Lubang Resapan Biopori sampah organik dapat dikelola dan diolah langsung di tempat sumbernya dengan luaran berupa pupuk kompos. Hal ini juga bisa diterapkan untuk sampah rumah tangga. Sampah dapat langsung dipilah dan diolah di lingkungan rumah tangga tidak perlu diangkut ke tempat pembuangan sampah atau tempat pembuangan akhir. Teknologi ini dapat meminimalisir biaya, tenaga dan mencegah pencemaran lingkungan. Pemanfaatan teknologi Lubang Resapan Biopori (LRB) sudah tersebar luas di masyarakat, namun hanya untuk teknologi untuk meresapkan air lebih cepat. Pemnafaatan LRB untuk pengomposan belum banyak diketahui dan diterapkan. Melalui kegiatan pengabdian pada bulan Agustus hingga bulan Oktober 2021 diperkenalkan metode pengomposan sederhana di dalam LRB kepada masyarakat Srikuncoro. Kegiatan berupa penyuluhan dan penerapan langsung di lapangan diikuti oleh 20 orang peserta. Hasil capaian dievaluasi melalui kuisioner yang diisi peserta saat belum dan sesudah kegiatan. Didapatkan bahwa 95% peserta sudah mengetahui tentang LRB, 80% peserta mengetahui cara pengomposan pada LRB dan menganggap teknologi LRB mudah untuk diterapkan dan 75% peserta ingin menerapkan LRB pada keseharian. 
Aplikasi Sistem Informasi Geografis (SIG) Untuk Menganalisis Kemampuan Lahan di Kabupaten Musi Rawas Provinsi Sumatera Selatan Muhammad Nofal; Zainal Muktamar; Sigit Sudjatmiko; Yuwana Yuwana; Mohammad Chozin
Naturalis: Jurnal Penelitian Pengelolaan Sumber Daya Alam dan Lingkungan Vol. 11 No. 2 (2022)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/naturalis.11.2.24175

Abstract

Dalam menganalisis kemampuan lahan selalu menggunakan data keruangan. Data tersebut merupakan data faktor yang akan menentukan satuan kemampuan lahan diantaranya jenis morfologi, kestabilan lereng, kedalaman efektif dan ketersediaan air. Data lingkungan tersebut ditumpang-susunkan dan diberi nilai untuk mendapatkan kelas kemampuan lahan sesuai potensinya. Tujuan penelitian ini menentukan kemampuan lahan, membandingkan penggunaan lahan dan merekomendasikan pengembangan sesuai kemampuan lahan di wilayah Kabupaten Musi Rawas Provinsi Sumatera Selatan. Pengolahan data pada satuan kemampuan lahan dilakukan dengan pemodelan spasial menggunakan sistem informasi geospasial yaitu dengan metode tumpang susun (overlay). Hasil analisis kelas kemampuan lahan terdiri dari 3 kelas kemampuan lahan yaitu kelas kemampuan lahan b dengan klasifikasi pengembangan rendah dan diarahkan untuk tetap dilestarikan dan tidak merusak tutupan lahannya. Kelas kemampuan lahan c dengan klasifikasi pengembangan sedang, arahan pengembangan harus mendapat persetujuaan telaah tata ruang. Pada kelas kemampuan lahan d dengan klasifikasi pengembangan agak tinggi yang mempunyai sedikit penghambat perlu perhatian terutama pada lahan sawah, sungai, danau dan rawa agar tidak dialih fungsikan, sedangkan kawasan rawan banjir tidak ada pembangunan. Pada rentang waktu antara tahun 2008 ke tahun 2017, ternyata ada perubahan luasan kemampuan lahan. Pada tahun 2008 luasan kemampuan pengembangan agak tinggi seluas 53,17%, dan pada tahun 2017 menjadi seluas 53,39%. Untuk kemampuan pengembangan sedang, pada tahun 2008 seluas 44,92%, menjadi seluas45,72% pada tahun 2017. Dengan kurun waktu yang sama pada tahun 2008 kemampuan lahan rendah seluas 1,91% dan pada tahun 2017 menjadi seluas 0,89%.
PENGEMBANGAN PUPUK ORGANIK CAIR LIMBAH RUMAH TANGGA SEBAGAI UPAYA PENGELOLAAN SAMPAH SKALA RUMAH TANGGA DI DESA SRIKUNCORO Anandyawati Anandyawati; Zainal Muktamar; Agung Tri Susilo; Kartika Utami
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 6, No 3 (2023): MARTABE : JURNAL PENGABDIAN MASYARAKAT
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v6i3.930-940

Abstract

Kelangkaan pupuk dikalangan petani menjadi persoalan serius yang harus diselesaikan untuk menunjang keberhasilan usaha budidaya. Petani secara mandiri harus mampu menyediakan pupuk organik untuk mensubstitusi kebutuhan pupuk anorganik yang terbatas. Tujuan kegiatan pengabdian pada masyarakat ini adalah untuk mensosialisasikan dan mempraktekkan proses pembuatan POC limbah rumah tangga, memanfaatkan POC tersebut sebagai pupuk pengganti dan bahan pembenah tanah. Pengabdian ini dilakukan melalui kegiatan penyuluhan dan praktek pembuatan POC secara langsung kepada 25 orang anggota gabungan kelompok tani Teratai Desa Srikuncoro Kabupaten Bengkulu Tengah, dimulai pada bulan Juli hingga September 2022. Hasil evaluasi menunjukkan bahwa 90% peserta menyatakan mampu dan akan menerapkan teknologi ini secara mandiri di kemudian hari. Tingkat persepsi peserta tergolong dalam kategori tinggi, yakni sebesar 4.20. Namun terjadi pergeseran nilai dan partisipasi peserta dalam setiap kelompok kategori. Begitu juga dengan penilaian terhadap harapan mereka, yakni sebesar 4.34.
PENGARUH VERMIKOMPOS TERHADAP KANDUNGAN KADMIUM DAN FASE VEGETATIF TANAMAN PADI GOGO DI INCEPTISOL Kartika Utami; Agus Ardiansyah; Priyono Prawito; Zainal Muktamar
Jurnal Tanah dan Sumberdaya Lahan Vol. 10 No. 2 (2023)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtsl.2023.010.2.24

Abstract

Heavy metal pollution is an important issue that must receive serious attention from various authorities, including the community. Cadmium (Cd) contamination will harm environmental and human health. Upland rice plants are the main food-producing plants susceptible to Cd contamination. This study aimed to determine the effect of vermicompost on cadmium content and the vegetative phase of upland rice plants in Inceptisol. This study used a Completely Randomized Design (CRD) with one factor, namely several dose levels of vermicompost, namely 0, 5, 10, 15, 20, and 25 t ha-1. The results of this study indicated that the use of vermicompost significantly affected the number of leaves and tillers of upland rice. A Vermicompost dose of 15 t ha-1 is considered optimum in increasing the number of leaves and tillers of upland rice. The use of vermicompost increased the vegetative growth of upland rice, so it increased the productivity of upland rice plants.
The Effect of Eco Enzyme from Pineapple (Ananas comosus) Peel Waste on Soil pH, P Availability, Growth and Yield of Shallots (Allium cepa) in Ultisols Tampubolon, Nadya Angelina; Muktamar, Zainal; Barchia, M. Faiz
TERRA : Journal of Land Restoration Vol. 6 No. 2 (2023)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/terra.6.2.51-56

Abstract

Ultisols have a main problem of high soil acidity, low organic matter, low macronutrients, and very low P availability which can affect plant growth and yield. This research aims to determine the dynamics of soil pH, and P availability and determine the concentration of pineapple peel-based eco enzyme that produces the highest shallots. This research was carried out using a Completely Randomized Design (CRD) with treatment concentrations of eco enzyme 20% (200 mL eco enzyme and 800 mL water), 40% (400 mL eco enzyme and 600 mL water), 60% (600 mL eco enzyme and 400 mL water), 80% (800 mL eco enzyme and 200 mL water), 100% (100% eco enzyme), without treatment/control, and NPK fertilizer treatment. The results showed that the application of eco enzyme at a concentration of 60% was a sufficient concentration to improve soil characteristics and shallot yield as indicated by soil pH of 6.58, soil P of 6.75 ppm, number of bulbs 3.21 and weight of bulbs 4.69 g, as well as the application of 100% eco enzyme to provide soil organic C amounted to 3.76% which was higher than other treatments.
Improvement of Selected Soil Physical Properties and Mustard Yield After the Application of Tithonia Compost in Ultisols Apriliani, Ririn; Sulistyo, Bambang; Muktamar, Zainal
TERRA : Journal of Land Restoration Vol. 7 No. 2 (2024)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/terra.7.2.66-71

Abstract

Ultisols are widespread in the Indonesian archipelago and have potential for developing the agricultural sector. However, Ultisols have several problems, such as low organic matter content, poor soil structure, unstable soil aggregates, high soil bulk density, and low total soil pore space. These problems result in slow soil infiltration and permeability, which can interfere with plant growth. This study aimed to determine the best dose of tithonia compost to improve certain soil physical properties and increase the yield of green mustard in Ultisols. The study was conducted from March to May 2024 at the Greenhouse of the Department of Crop Production, Faculty of Agriculture, University of Bengkulu. This study used a Completely Randomized Design (CRD) with 6 treatments of tithonia compost doses with 3 replications. The treatments were 0 (control), 5, 10, 15, 20, and 25 ton ha-1. After mustard harvesting, undisturbed soil sample was collected from each polybag and analyzed for soil moisture, bulk density, and soil permeability. Fresh and dry weight of mustard were also measured after harvesting. The results showed that the highest improvement of selected soil physical properties was soil fertilized with tithonia compost at the rate of 15 ton ha-1, as shown in the decrease of bulk density and increase in soil moisture content, total pore space, and soil permeability. The application of tithonia compost at 5 ton ha-1 was adequate for the improvement of selected soil physical properties and nutrient release to the soil for green mustard cultivation. The findings of the study will benefit to crop management, especially mustard yield using tithonia compost in Ultisols.  
Co-Authors Agung Tri Susilo Agus Ardiansyah Anandyawati Anandyawati Anandyawati, Anandyawati Apriliani, Ririn Askhari, Muhammad Yudha Bambang Gonggo Murcitro Bambang Sulistyo Bandi Hermawan Barchia, M Faiz Barchia, M. Faiz Bejo Bejo Chosin, Muhammad Chozin, Mochammad Deselina Dwita Ulandari Edi Susilo Eko Suprijono Fahrurrozi, Fahrurrozi Gusmara, Herry Hairani, Putri Mian Hasanudin Hastari Aningtias Herison, Catur Herman, Welly Herry Gusmara Heru Widiyono, Heru Hery Suhartoyo Hindarto, Kanang Setyo Hutabarat, Grace May Sawita Impetus Hasada Windu Sitorus Kamil, Maulana Insanul Kanang Setyo Hindarto Kartika Utami Mochammad Chozin Mohammad Chozin Mohammad Chozin Mohammad Chozin, Mohammad Mohammad Nur Dita Nugroho Muhammad Chozin Muhammad Faiz Barchia Muhammad Nofal Nanik Setyowati Nanik Setyowati Nanik Setyowati Nola Windirah Nur Dita Nugroho, Mohammad Okty Patrechia Paka Mutiara Anugrah Prawito, Priyono Priyono Prawito Priyono Prawito Priyono Prawito Putri, Elsa Lolita Raden Mohamad Herdian Bhakti Riwandi Riwandi Saiful Akhyar Lubis Sigit Sudjatmiko Sigit Sudjatmiko Sigit Sudjatmiko Sigit Sudjatmiko Sigit Sudjatmiko, Sigit Simanihuruk, Bilman Wilman Sri Mega Sianturi Steffanie Nurliana Sujatmiko, Sigit Tampubolon, Nadya Angelina Tristantia Anggita Ulandari, Nirwana Uswatun Nurjannah Utami, Kartika Wahyudi Febrianto Putra Windi Mayasari Wiryono Wulandari Wulandari Wulandari Wulandari Yuwana Yuwana