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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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The Effect of Ultisols Subsoil Combined with Mexican Sunflower (Tithonia diversifolia) Compost and Vermicompost on Pre-Nursery Growth of Oil Palm Seedling Hutabarat, Grace May Sawita; Simanihuruk, Bilman Wilman; Herison, Catur; Muktamar, Zainal; Suprijono, Eko; Hairani, Putri Mian
Akta Agrosia Vol 26 No 2 (2023)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/aa.26.2.50-58

Abstract

The productivity of oil palm is determined by the use of high-quality seedlings that have good growth potential, appearance, and the ability to grow in various environmental conditions. To obtain good oil palm seedlings, attention must be paid to the planting media used. The objective of this research was to determine the appropriate composition of planting media, consisting of Ultisols subsoil, compost, and vermicompost, for oil palm seedlings in the pre-nursery stage. This study was conducted from January to April 2023, used a Completely Randomized Design (CRD) with a single factor consisting of 10 treatments, which are 100% Ultisols subsoil, 80% Ultisols subsoil + 20% mexican sunflower compost, 80% Ultisols subsoil + 20% vermicompost, 60% Ultisols subsoil + 20% mexican sunflower compost + 20% vermicompost, 60% Ultisols subsoil + 10% mexican sunflower compost + 30% vermicompost, 60% Ultisols subsoil + 30% mexican sunflower compost + 10% vermicompost, 60% Ultisols subsoil + 40% mexican sunflower compost 60% Ultisols subsoil + 40% vermicompost, 50% Ultisols subsoil + 50% mexican sunflower compost, 50% Ultisols subsoil + 50% vermicompost. The research results showed that the composition of 60% Ultisols subsoil + 40% vermicompost provided the best growth for oil palm seedlings in the pre-nursery stage, as evidenced by seedling growth parameters such as plant height, number of leaves, leaf area, root volume, root dry weight, crown dry weight, and plant dry weight Keyword: mexican sunflower compost, pre nursery, ultisols subosil, vermicompost.
PERBANDINGAN KADAR TOTAL KARBON DAN NITROGEN PADA KOMPOS DARI BERBAGAI MACAM JENIS GULMA Okty Patrechia; Bambang Gonggo Murcitro; Zainal Muktamar; Hasanudin; Muhammad Faiz Barchia
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 26 No 2 (2024)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.26.2.97-104

Abstract

[COMPARISON OF NUTRIENT CONTENT IN COMPOST DERIVED FROM VARIOUS TYPES OF WEEDS]. Weeds can reduce crop productivity and cause environmental problems. However, thiese plants are potential as sources of compost. This study aimed to compare carbon and nitrogen content of compost prepared from various types of weeds. The research was conducted from February to March 2024 at the Composting House of Bengkulu University in Muara Bangkahulu District, Bengkulu Province. The experiment used a Completely Randomized Design (CRD) with 6 types of weeds, namely, Imperata cylindrica, Eichhornia crassipes, Widelia trilobata, Ageratum conyzoides, Tithonia diversifolia, and Melastoma malabathricum. The experiment was repeated 3 times, so that the total number of experimental units in this study was 18 experimental units. Three kg of compost source was mixed with 100 mL EM4, 200 g of sugar, and 100 mL of water. The mixture was poured into the plastic bowl and incubated for 45 days. Data were analyzed using Analysis of Variance at a level of 5%, and treatment means were separated using Duncan's Multiple Range Test (DMRT) at the 5% level. The study found that compost from all types of weeds had a C/N ratio that met the quality standards for organic fertilizers, ranging from 7.52 to 24.54. Compost made from Tithonia (Tithonia diversifolia) had the highest total nitrogen content (2.58%) and the lowest organic carbon content (19.32%). These findings are significant for the development of sustainable agriculture, mainly the use of weed compost as source of N for plant growth.  
Vermicompost Buffering Capacity to Reduce Acidification of Pb and Cd Contaminated Inceptisols and Entisols Muktamar, Zainal; Hermawan, Bandi; Wulandari, Wulandari; Prawito, Priyono; Sudjatmiko, Sigit; Setyowati, Nanik; Fahrurrozi, Fahrurrozi; Chozin, Mochammad
JOURNAL OF TROPICAL SOILS Vol. 26 No. 1: January 2021
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2021.v26i1.1-9

Abstract

Contamination of  heavy metals on the soil leads to an increase in its acidity. Vermicompost application is commonly used to improve the properties of soil. The study was carried out to determine the reduction of the acidity in Pb and Cd contaminated soils under the application of vermicompost. Two laboratory experiments were set using Completely Randomized Design (CRD) with two factors. The first factor was soil samples, vis Inceptisols, and Entisols, and the second factor was the rates of vermicompost, consisted of 0, 5, 10, 15 g kg-1. The treatment combination was repeated three times. The soils were pretreated with 10 mg kg-1 Pb or Cd using Pb(NO3)2 and Cd(NO3)2. Three hundred kg soil sample was incorporated with vermicompost and placed in a 500 ml plastic bottle. The mixtures were incubated for eight weeks, and the moisture of the soil was maintained at field capacity. The acidity and soil temperature were monitored every week. The study indicated that Pb contaminated soil acidity increased to the sixth week of the incubation and decreased afterward. However, the acidity of Cd contaminated soil was consistently increased during the incubation. Treatment of vermicompost significantly lowered the acidity of both Pb and Cd contaminated soils. Contaminated Entisols had a higher response to the application of vermicompost than that of Inceptisols. This finding is significant in assessing acidity risk and possible management intervention for Pb and Cd contaminated soils.
Changes in Soil Physical Properties Following Applications of Vermicompost Superimposed with Liquid Organic Fertilizer Hermawan, Bandi; Muktamar, Zainal; Fahrurrozi, Fahrurrozi; Setyowati, Nanik; Sujatmiko, Sigit; Chosin, Muhammad; Putri, Elsa Lolita
JOURNAL OF TROPICAL SOILS Vol. 29 No. 2: May 2024
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2024.v29i2.107-113

Abstract

Soil properties play essential roles in transmitting and holding precipitation water; therefore, they determine the amount of plant-available water in the soil profile. The study aimed to compare the size distributions of Andept soil pores following four-year applications of vermicompost and liquid organic fertilizer (LOF). The experiment was done from 2016 to 2019. The five doses of vermicompost (5, 10, 15, 20, and 25 Mg ha-1) set as the main factor, supplemented with 0 and 100 percent concentrations of LOF as a sub-factor, were arranged in a split-plot design with three replicates. Results showed that adding LOF decreased slow-drainage pores significantly when combined with 10 Mg ha-1 of vermicompost. However, the pore changes by LOF were not significant when applied to other doses of vermicompost. Applying vermicompost and LOF lowered the slow-drainage pores by increasing soil organic carbon and reducing soil particle density. The findings suggest that vermicompost and LOF act as soil ameliorants to reduce water loss by drainage from soil profiles. The study highlights the importance of soil properties in determining plant-available water in the soil profile.
Dampak Pemberian Pupuk NPK dan Dolomit pada Media Tanam terhadap Pertumbuhan, Hasil, dan Kualitas Limbah Baglog Jamur Tiram Askhari, Muhammad Yudha; Barchia, M Faiz; Prawito, Priyono; Muktamar, Zainal; Putri, Elsa Lolita; Widiyono, Heru; Utami, Kartika
Cannarium Vol 23, No 2 (2025)
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/cannarium.v23i2.10396

Abstract

Penelitian ini bertujuan mengevaluasi pengaruh perlakuan dolomit dan NPK terhadap sifat kimia baglog, pertumbuhan dan hasil jamur tiram putih (Pleurotuss ostreatus), serta potensi pemanfaatan limbah baglog sebagai bahan pupuk organik. Penelitian ini menggunakan rancangan acak lengkap (RAL) dengan lima perlakuan : kontrol (A0), NPK 5,6 g/baglog (A1), NPK 11,2 g/baglog (A2), dolomit 5,6 g/baglog (A3) dan dolomit 11,2 g/baglog (A4), masing-masing diulang tiga kali. Parameter yang diamati meliputi kandungan C-organik, N-total, rasio C/N, P-total, K-total, pertumbuhan morfologi tubuh buah (lebar tudung, tebal tudung dan panjang batang), berat segar jamur, jumlah jamur per rumpun, berat baglog pasca panen dan rasio efisiensi biologis (REB). Hasil penelitian menunjukkan bahwa pemberian NPK dan dolomit berpengaruh nyata terhadap kandungan C-organik, N-total, C/N, P-total dan K-total media. Perlakuan A2 menghasilkan kadar N, P dan K tertinggi, sedangkan kadar C-organik tertinggi diperoleh pada perlakuan kontrol (A0). Namun, perlakuan NPK dan dolomit tidak berpengaruh nyata terhadap pertumbuhan morfologi maupun hasil jamur. Perlakuan dolomit dosis tinggi (A4) cenderung meningkatkan berat jamur, tetapi menurunkan REB. Limbah baglog dari perlakuan NPK (A2) memiliki kualitas kimia lebih baik untuk digunakan sebagai bahan pupuk organik. Hasil ini mengindikasikan bahwa suplementasi NPK dosis 11,2 g/baglog direkomendasikan untuk meningkatkan kualitas limbah baglog, meskipun tidak meningkatkan produktivitas jamur secara siginifikan.
Kandungan NPK Kulit Kopi dan Serbuk Kayu Terhadap Pertumbuhan Jamur Tiram dan Efek Sisa Kompos Baglog Ulandari, Nirwana; Barchia, M Faiz; Prawito, Priyono; Putri, Elsa Lolita; Muktamar, Zainal; Kamil, Maulana Insanul
Cannarium Vol 23, No 2 (2025)
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/cannarium.v23i2.10395

Abstract

Penelitian ini bertujuan membandingkan pengaruh campuran kulit kopi dan serbuk kayu sebagai media tanam terhadap pertumbuhan, produktivitas jamur tiram (Pleurotus ostreatus) dan kandungan unsur hara makro baglog. Rancangan penelitian menggunakan Rancangan Acak Lengkap (RAL) dengan lima perlakuan komposisi media (P1: 100% kulit kopi, P2: 75% kulit kopi + 25% serbuk kayu, P3: 50% kulit kopi + 50% serbuk kayu, P4: 25% kulit kopi + 75% serbuk kayu, P5: 100% serbuk kayu) dan masing-masing di ulang tiga kali. Variabel yang diamati meliputi kandungan C-organik, N-total, Rasio C/N, P-total, K-total awal dan akhir media, lebar dan tebal tudung, panjang tangkai, berat jamur, jumlah jamur per rumpun, berat jamur+baglog, berat baglog pasca panen dan nilai REB. Hasil analisis ragam menunjukkan bahwa perbedaan komposisi media berpengaruh nyata terhadap seluruh variabel pengamatan. Perlakuan P3 menghasilkan jumlah jamur per rumpun dan nilai REB tertinggi (98,58%), sedangkan P5 memberikan bobot panen terbesar (121,33 g) dan lebar tudung terbesar. Kombinasi kulit kopi dan serbuk kayu pada perbandingan 50:50 menghasilkan keseimbangan rasio C/N dan ketersediaan unsur hara yang mendukung pertumbuhan optimal jamur tiram. Penelitian ini merekomendasikan pemanfaatan kulit kopi hingga 50% sebagai media tanam alternatif yang berkelanjutan, sekaligus mengurangi limbah pertanian dan meningkatkan efisiensi produksi jamur tiram.
INTRODUKSI TEKNOLOGI VERMIKOMPOSTING DALAM UPAYA PENGELOLAAN LIMBAH PETERNAKAN DI DESA SRIKUNCORO, BENGKULU TENGAH Anandyawati, Anandyawati; Nur Dita Nugroho, Mohammad; Muktamar, Zainal
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 Hindarto, Kanang Setyo; Gusmara, Herry; Muktamar, Zainal
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. 
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.
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