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PENGARUH JERAMI PADI DAN RASIO PUPUK UREA, TSP, KCl TERHADAP PERTUMBUHAN DAN PRODUKSI KEDELAI ( Glycine max (L) Merril. ) Jamili, M Joehari; Sjofjan, Jurnawaty; Amri, Al Ikhsan
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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Abstract

This research was conducted to find out the effect of rice straw and ratio of Urea, TSP, KCL on the growth and production of soybean. This research has been conducted in the experimental farm, Faculty of Agriculture University of Riau, from January to April 2016. This study used randomized block design (RAK), arrange in a factorial with 2 factors, factors of rice straw mulch with 3 levels doses of 0 kg/Ha, 5 kg/Ha, 10 kg/Ha and factor ratio of Urea, TSP, KCL with 4 levels doses of 0 kg/Ha, 25, 50, 50 kg/Ha, 50, 100, 100 kg/Ha, 75, 150, 150 kg/Ha, two factors combined to obtain 12 combined treatment, for each treatment consisted of three replications, in order to get 36 experimental units. The data were analyzed by analysis of variance and significantly different continued with Duncan New Multiple Range Test (DNMRT) at 5% level. Each experimental unit consisted of 52 plants, only seven plants become sample. The parameters measured were the number of the effectiveness root nodules per plant, the growth rate of plants, weeds, number of pods per plant, pods percentage pithy, dry seed weight/m2, and the weight of 100 seeds. Research data show that rice straw dose of 10 ton/Ha and ratio of Urea, TSP, KCl doses of 50, 100, 100 kg/Ha produces a dry seed weight of 2,69 tons/Ha, higher than without treatments is 1,3 tons/Ha.  Keywords: soybeans, organic mulch, rice straw.
Dinamika fluks CO2 pada perkebunan kelapa sawit di lahan gambut M. Joehari Jamili; Budi Nugroho; Basuki Sumawinata; Syaiful Anwar
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol. 11 No. 3 (2021): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Graduate School Bogor Agricultural University (SPs IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.11.3.430-441

Abstract

CO2 flux from peat soil planted with oil palm is temporally and spatially dynamic, which is related to various environmental factors. This flux can be partitioned into fluxes from oil palm root respiration, litter decomposition, and peat material decomposition. The aim of this study was to determine the temporal and spatial dynamics of CO2 fluxes, the contribution of oil palm roots respiration, the contribution of litter decomposition, and the relation between flux and environmental factors in oil palm plantations on peatland. Measurements of CO2 flux using an infrared gas analyzer (IRGA) were carried out in harvesting path and inter raw of oil palm plantation, and nearby bushland. Flux measurements were repeated every three to four days for almost five months. Results showed the dynamics of the CO2 fluxes temporally and spatially. Temporally, CO2 flux in oil palm plantation and bushland ranged from 2.9 – 11.1 and 0.5 – 6.4 g C-CO2 m2/day, respectively. Spatially, the flux in oil palm plantation and bushland ranged from 4.8 – 8.8 and 2.7 – 3.4 g C-CO2 m2/day, respectively. The contribution of oil palm roots respiration and litter decomposition were 48.4 and 5.8%, respectively. These results confirm that plant roots respiration plays an important role in the release of carbon from the soil surface.
Program Edu-Eco-School: Optimalisasi Lahan Sekolah untuk Budidaya Tanaman Pangan dan Sayuran Berbasis Instalasi Air Penyiraman Nurdin, Nurdin; Fakhri, Fakhri; Suprayogi, Imam; Ermiyati; ‘Audah, Safridatul; Gussyafri, Haji; Saily, Randhi; Novan, Andre; Wibisono, Gunawan; Olivia, Monita; Nugroho, Soewignjo Agus; Joehari Jamili, M.
Pelita Masyarakat Vol. 7 No. 1 (2025): Pelita Masyarakat September
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/pelitamasyarakat.v7i1.16007

Abstract

The Edu-Eco-School Program was implemented as a community service activity at SMPS Khazanah Boarding School, Pujud District, with the aim of optimizing school land through the cultivation of food crops and vegetables supported by a water-efficient irrigation system. This program is significant as it aligns with the Sustainable Development Goals (SDGs), particularly Zero Hunger and Climate Action, which emphasize food security and water resource conservation in education. The implementation stages included land condition surveys, the design and construction of a bore well and PVC pipe network as an irrigation system for plant watering, agricultural training, and mentoring up to the harvesting stage. The program successfully transformed underutilized land into a productive garden with various commodities, such as chili, tomato, corn, and vegetables. The harvest not only met the school’s basic needs but also served as a contextual learning medium for students to practice sustainable agriculture. Overall, this program enhanced school community engagement, improved water-use efficiency, and created a productive green area that supports local food security while strengthening environmental education.
Pengaruh Metode Pirolisis Terhadap Rendemen Arang Hayati dari Tandan Kosong Kelapa Sawit dengan Variasi Bentuk Bahan dan Sistem Pembakaran: The Effect of Pyrolysis Method on the Yield of Biochar from Empty Oil Palm Fruit Bunches with Variations in Material Form and Combustion System Zafitra Zafitra; Riskia Trizayuni; Roy Ibrahim; Muhammad Joehari Jamili; Muhammad Amrul Khoiri; Joni Irawan; Heralda Fawrin; Yeni Etma Nazar; Panji Romadhan
Acta Solum Vol. 3 No. 2 (2025): Maret 2025
Publisher : Department of Soil, Faculty of Agriculture, Lambung Mangkurat University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/actasolum.v3i2.3299

Abstract

This study aimed to determine the effect of pyrolysis methods on the biochar yield from oil palm empty fruit bunches (EFB) using variations in material form and combustion systems. The research was conducted from March to May 2025 in Sorek Satu, Pelalawan Regency, Riau Province, and in the Soil Science Laboratory, Faculty of Agriculture, Riau University. The study consisted of several treatments: (1) whole EFB – external semi-vacuum combustion, (2) shredded EFB – external semi-vacuum combustion, (3) whole EFB – total internal vacuum combustion, and (4) shredded EFB – total internal vacuum combustion. Collected data from the study were analyzed using descriptive statistics. The results showed that external semivacuum pyrolysis produced a higher biochar yield compared to total internal vacuum pyrolysis, with the highest yield from whole EFB at 45.6% and shredded EFB at 32.8%. The total internal vacuum system failed to produce biochar and only resulted in dry material without undergoing carbonization. The chemical characteristics from the external semi-vacuum combustion system indicated that biochar from whole EFB had higher contents of carbon, potassium, magnesium, boron, and pH, while biochar from shredded EFB tended to have higher contents of nitrogen, calcium, and iron.
Pemberdayaan Petani Hortikultura melalui Sosialisasi dan Pendampingan Budidaya Cabai Varietas Neno Tahan Virus di Desa Benai Kecil, Kabupaten Kuantan Singingi Yunandra; Julita Saidi; Dian Rakhmad; Dedi Mulyadi; Alltop Amri Ya Habib; Rizki Oktavian; Elisa Apriliani; M. Joehari Jamili
JURPIKAT Vol 7 No 1 (2026): 7.1 2026
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/jurpikat.v7i1.2807

Abstract

National chili demand continues to increase, but productivity at the farmer level remains low due to attacks by the whitefly (Bemisia tabaci Genn.) virus. Benai Kecil Village, Benai District, Kuantan Singingi Regency, Riau, is a horticultural center with low chili productivity (4–5 tons/ha), far below the potential of commonly used superior varieties. This community service activity aims to improve farmers' knowledge and skills in chili cultivation by initiating the use of the superior virus-resistant Neno variety. The program was implemented for five months with stages of socialization, field practice, mentoring, monitoring, evaluation, and follow-up. The results of the activity indicated that farmers improved their understanding and skills in chili cultivation techniques, including seeding, soil cultivation, maintenance, and pest and disease control. The evaluation showed that the Neno chili variety has the potential to be developed because it is adaptive to dynamic climate change and effectively reduces the risk of curly virus attacks. In addition, the use of virus-resistant varieties can also support environmentally friendly pest and disease control. This program demonstrates that the development of the superior Neno variety has the potential to be a sustainable strategy for increasing chili production while simultaneously strengthening food security and farmer welfare.
Sosialisasi Budidaya dan Pencegahan Serangan Virus Gemini pada Tanaman Cabai di Gapoktan Beken Jaya Desa Benai Keci Kabupaten Kuantan Singingi Yunandra Yunandra; Julita Saidi; Dian Rakhmad; Dedi Mulyadi; Altop Amri Ya Habib; Rizki Oktavian; Elisa Apriliani; M. Joehari Jamili
Unri Conference Series: Community Engagement Vol 7 (2025): Seminar Nasional Pemberdayaan Masyarakat
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/unricsce.7.87-93

Abstract

This community service program aims to improve farmers' knowledge and skills in cultivating chili plants and preventing geminivirus infection, a major constraint in production. The activity was carried out through outreach activities covering the stages of land cultivation, virus infection prevention techniques, whitefly population control as a vector, land clearing of weeds that are hosts of geminivirus, sanitation of infected plants, and proper pesticide use. In addition, participants were also introduced to the use of chili varieties resistant to the yellow geminivirus as an alternative sustainable solution. The results of the activity showed an increase in farmers' understanding of healthy cultivation strategies and integrated pest control, with an average score increasing from 45% to 85%, with the vector control aspect increasing from 30% to 90%. This outreach is expected to reduce the level of virus infection and increase chili productivity.
Karakteristik Fisik Tanah Gambut pada Perkebunan Kelapa di Pulau Burung, Indragiri Hilir, Riau, Indonesia M. Joehari Jamili; Eko Wahyudi; Via Permata Sari; Zafitra Zafitra; Ahmad Imtaz Sumbari; Irwin Mirza Umami
Plumula : Berkala Ilmiah Agroteknologi Vol. 14 No. 1: Januari 2026
Publisher : Program Studi Agroteknologi, Fakultas Pertanian, UPN "Veteran" Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/plumula.v14i1.277

Abstract

Lahan gambut memiliki peran penting dalam ekosistem, namun sangat rentan terhadap degradasi akibat perubahan penggunaan lahan dan kebakaran. Penelitian ini bertujuan untuk mengevaluasi karakteristik fisik tanah gambut pada penggunaan lahan kelapa dua tipe penggunaan lahan gambut di Pulau Burung, Indragiri Hilir, Riau, yaitu lahan perkebunan kelapa dan lahan gambut terbakar yang telah berkembang menjadi semak belukar. Contoh tanah diambil dari kedalaman 0–20 cm dan 20–40 cm, lalu dianalisis untuk parameter fisik tanah. Analisis deskriptif-komparatif menunjukkan bahwa lahan perkebunan kelapa memiliki sifat fisik tanah yang berbeda, dengan bobot isi rendah (0.18-0.11 g/cm³), kerapatan partikel <1 g/cm³, dan porositas tinggi (80–84%). Sebaliknya, lahan semak belukar bekas terbakar menunjukkan peningkatan bobot isi dan kerapatan partikel. Perbedaan ini mencerminkan dampak dari kebakaran, serta manajemen dari perkebunan kelapa. Hasil penelitian menekankan pentingnya pengelolaan lahan gambut yang berkelanjutan tanpa kegiatan pembakaran.
Earthworm (Lumbricus) Feeding on Rubellus and Cabbage Waste on Purple Eggplant (Solanum melongena L.) Gusmawartati; Joehari Jamili; Agridifa Anugerah Had
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 8 No. 3 (2026): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 8 No. 3 September 2026
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v8i3.5470

Abstract

Eggplant (Solanum melongena L.) is a widely consumed vegetable in Indonesia, both as a fresh salad and in various prepared dishes. This vegetable is rich in nutrients, particularly vitamin A and phosphorus, and can help improve the nutritional diversity of the population. In Riau Province, average eggplant productivity has declined, necessitating improvements to the production system to meet steadily rising demand. This study aims to investigate the interaction between earthworm application and cabbage residue and to identify the combination that produces the best eggplant plants. The experiment used a factorial Completely Randomized Design (CRD) with two factors. The first factor was earthworm application (0, 20, and 30 earthworms per polybag). The second factor was cabbage residue application (0, 420 g, and 630 g per polybag). The observed parameters included plant height, days to flowering, days to first harvest, fruit length, fruit diameter, and fruit weight. The data were statistically analyzed using analysis of variance (ANOVA); if the calculated F-value exceeded the table F-value, the analysis continued with Duncan's New Multiple Range Test (DNMRT) at the 5% significance level. The results showed that there was no significant interaction between the two factors for any of the observed parameters. However, individually, the application of 30 earthworms and 630 g of cabbage waste tended to produce the best growth and yield. Based on the research results, it is recommended to use a combination of 30 earthworms and 630 g of cabbage waste.