Article Per Year (5 Year)
p-Index From 2021 - 2026
2.042
P-Index
This Author published in this journals
All Journal Journal of Tropical Soils 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 Akta Agrosia
Zainal Muktamar
University of Bengkulu
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Economics, Econometrics & Finance Education Environmental Science Social Sciences

Published : 11 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 11 Documents
Search

 1   2 
Comparative Effects of Soil and Foliar Applications of Tithonia-Enriched Liquid Organic Fertilizer on Yields of Sweet Corn in Closed Agriculture Production System Fahrurrozi, Fahrurrozi; Muktamar, Zainal; Setyowati, Nanik; Sudjatmiko, Sigit; Chozin, Mohammad
AGRIVITA, Journal of Agricultural Science Vol 41, No 2 (2019)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v41i2.1256

Abstract

Solid organic fertilizer is commonly applied for organic vegetable production in a closed agriculture production system as nutrient source. However, its availability is considered slow to sweet corn, and thus it is important to make additional nutrients supply as liquid organic fertilizer (LOF) through leaves. The experiments were conducted to compare effects of LOF application methods and to determine optimum LOF concentrations for sweet corn. Two separated factorial experiments, arranged in randomized complete block design with three replicates, were conducted from February to May and March to June 2015, respectively. The first factor was LOF application methods (soil and foliar) and the second factor was LOF concentration (0, 25, 50, 75, and 100 ppm). The observations focused on average weight of husked ear, length, weight and diameter un-husked ears. The results indicated that the effectiveness of soil application of LOF was 99.625 % as effective as foliar application in influencing sweet corn yields. Concentrations of LOF did not increase all observed variables, but yield attributes were within the range of variety description. It is concluded that in a closed production system, LOF application through soil is as effective as foliar application in affecting sweet corn yields.
PERSEPSI PETANI PERKOTAAN TERHADAP KEGIATAN BUDIDAYA TANAMAN SAYURAN ORGANIK DI KOTA BENGKULU (Studi Kasus pada Kelompok Tani Melati di Kelurahan Kandang Limun) Windirah, Nola; Setyowati, Nanik; Muktamar, Zainal; Fahrurrozi, Fahrurrozi
Mimbar Agribisnis: Jurnal Pemikiran Masyarakat Ilmiah Berwawasan Agribisnis Vol 7, No 1 (2021): Januari 2021
Publisher : Universitas Galuh Ciamis

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25157/ma.v7i1.4482

Abstract

Pandemik Covid-19 memberikan dampak yang sangat luar biasa terhadap keseharian masyarakat dunia, termasuk masyarakat Kota Bengkulu.  Kelompok Tani merupakan salah satu unit sosial yang strategis untuk meningkatkan produktivas pertanian dan meningkatkan taraf hidup petani dan kemampuan beradaptasi dengan kondisi yang kurang menguntungkan.  Kelompok Tani Melati Kelurahan Kandang Limun yang memiliki latar belakang aktifitas memproduksi tanaman pangan dapat diperkenalkan dengan produksi tanaman sayuran untuk menopang kebutuhan hidupnya. Penelitian bertujuan untuk menganalisis persepsi petani terhadap tingkat pengetahuan, kebermanfaatan dan keberlanjutan produksi sayuran organik di Kota Bengkulu. Penelitian menggunakan metode analisis deskriptif dari data kuisioner responden. Hasil penelitian menyimpulkan bahwa persepsi anggota Kelompok Tani Melati terhadap pengetahuan, kebermanfaatan dan keberlajutan tanaman sayuran organik tinggi. 
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.  
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.
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.
Co-Authors Abd. Rasyid Syamsuri Anandyawati, Anandyawati Apriliani, Ririn Askhari, Muhammad Yudha Bambang Sulistyo Bandi Hermawan Barchia, M Faiz Barchia, M. Faiz Chosin, Muhammad Chozin, Mochammad Eko Suprijono Fahrurrozi Fahrurrozi Fahrurrozi, Fahrurrozi Gusmara, Herry Hairani, Putri Mian Herison, Catur Heru Widiyono, Heru Hindarto, Kanang Setyo Hutabarat, Grace May Sawita Kamil, Maulana Insanul Mohammad Chozin, Mohammad Nanik Setyowati Nola Windirah Nur Dita Nugroho, Mohammad Prawito, Priyono Putri, Elsa Lolita Sigit Sudjatmiko, Sigit Simanihuruk, Bilman Wilman Sujatmiko, Sigit Tampubolon, Nadya Angelina Ulandari, Nirwana Utami, Kartika Wulandari Wulandari