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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat Jurnal Agroqua: Media Informasi Agronomi dan Budidaya Perairan Abdihaz: Jurnal Ilmiah Pengabdian pada Masyarakat
Risvan Anwar, Risvan
Program Studi Agroteknologi Fakultas Pertanian Universitas Prof. Dr. Hazairin, SH
Agriculture, Biological Sciences & Forestry Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Law, Crime, Criminology & Criminal Justice Public Health

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The Influence of Dose Herbicide Fermented Coconut Water Raw Material Against Weeds in Immature Oil Palm Plantations Juanda Iskandar; Risvan Anwar; Sunarti Sunarti
Jurnal Agroqua: Media Informasi Agronomi dan Budidaya Perairan Vol 21 No 1 (2023): Jurnal Agroqua
Publisher : University of Prof. Dr. Hazairin, SH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32663/ja.v21i1.3918

Abstract

This study aims to determine the dosage of herbicides made from fermented coconut water against weeds in immature oil palm plantations. The research was conducted in March 2022, in Sukarami Village, Kedurang Ilir District, South Bengkulu Regency, Bengkulu Province. The experiment used a randomized block design with one factor, namely herbicide dose (D), consisting of 9 treatments: D1 = 10 L/ha, D2 = 15 L/ha, D3 = 20 L/ha , D4 = 25 L/ha, D5 = 30 L/ha, D6 = 35 L/ha, D7 = 40 L/ha, D8 = 45 L/ha, D9 = 50 L/ha. The results of the study concluded that smallholder oil palm plantations were dominated by Axonopus compresus (47.78%) and Ageratum conyzoides (30.98%). The weed that is resistant to this herbicide is Erigeron bonariensis L. The dose treatment has a significant effect on weeds in immature smallholder oil palm plantations. Treatment at a dose of 25 L/ha is effective in controlling weeds in immature oil palm plantations.
DINAMIKA POPULASI GULMA PADA PERTANAMAN SEMANGKA(Citrulus vulgaris Schard)DARI PENGARUH DOSIS KALIUM YANG BERBEDA PADA TANAH ULTISOL Syahpiri, Marizan; Suzanna, Eka; Anwar, Risvan; Aryani, Farida
Jurnal Agroqua: Media Informasi Agronomi dan Budidaya Perairan Vol 22 No 2 (2024): Jurnal Agroqua
Publisher : University of Prof. Dr. Hazairin, SH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32663/ja.v22i2.4298

Abstract

This research aims to determine the effect of potassium fertilizer doses on the growth and yield of watermelon plants planted in ultisol soil, and determine short-term changes in weed composition.The experiment used a Randomized Block Design (RAK) with five treatments of potassium (D) doses and three replications. The treatment doses are: Without fertilizer (control) equivalent to 0 kg/plot; A dose of 125 kg/ha is equivalent to 37.4 g/plot; A dose of 250 kg/ha is equivalent to 74.8 g/plot; A dose of 375 kg/ha is equivalent to 112.1 g/plot; A dose of 500 kg/ha is equivalent to 149.5 g/plot. The research data was analyzed using Sidik Ragam to find out whether the treatment had a real effect or an insignificant effect. If the results of the analysis have a real or very real effect, then continue with the Duncant's Multiple Range Test (DMRT) at the 5% level.This research concluded: (1) The dose of potassium fertilizer had no significant effect on plant length and fruit weight per plant but had a very significant effect on fruit weight per plot. Potassium fertilizer dose of 500 kg/ha provides the highest fruit weight per plot; (2) Potassium fertilizer doses tend to provide different weed populations and dry weights in watermelon plantings. The higher the dose of potassium fertilizer given tends to increase the weed population and weed dry weight; (3) The weed community coefficient index between mid and late weeds in watermelon planting is the same. However, the number of weed populations and biomass in the middle observation was higher than the final observation of watermelon planting.
PENGARUH BERBAGAI FORMULASI HERBISIDA BERBAHAN BAKU AIR KELAPA FERMENTASI, ASAM ASETAT, ETANOL, GLIFOSAT DAN GARAM TERHADAP GULMA DI LAHAN TERBUKA Agustina, Beta; Anwar, Risvan; Suzanna, Eka; Kesumawati, Neti
Jurnal Agroqua: Media Informasi Agronomi dan Budidaya Perairan Vol 23 No 1 (2025): Jurnal Agroqua
Publisher : University of Prof. Dr. Hazairin, SH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32663/ja.v23i1.5180

Abstract

This study aimed to evaluate the effectiveness of various herbicide formulations based on fermented coconut water, acetic acid, ethanol, glyphosate, and salt against weeds in open fields. The study used a Randomized Block Design with 9 formulations and 3 replications. Observed variables included dominant weeds, dead weed area, live weed population, dry weight of live weeds, and chlorophyll degradation. The results showed that four types of weeds dominated the field (96%): Paspalum conjugatum, Mimosa pudica, Cyperus rotundus, and Chrysopogon aciculatus. Herbicide formulations significantly suppressed weed growth. Formulations 3 and 9 proved to be the most effective. Further development of Formulations 1, 3, 4, 5, 7, and 8 is recommended.
Efektifitas Herbisida Formulasi pada Gulma Air di Lahan Rawa Tadah Hujan, Rawa Payau dan Saluran Drainase Anwar, Risvan; Suzanna, Eka; Djatmiko, Djatmiko; Dwi Andika, Windi Sambaz; Gartiwo, dan M. Tanu
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 47 No. 2 (2019): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (499.606 KB) | DOI: 10.24831/jai.v47i2.24136

Abstract

A series of studies had been carried out to create new types of herbicides. The studies had found six formulations ofherbicides. This study aimed to determine the effectiveness of herbicides formulation in controlling aquatic weeds. Theexperiment used a randomized complete block design with seven herbicide formulations as treatments and three replications.The seven formulations of herbicide were: Unihaz 1, Unihaz 2, Unihaz 3, Unihaz 4, Unihaz 5, Unihaz 6, and a control(glyphosate 2 kg ha-1). The results of the study found that there were 21 species of weed in rainfed swamps, ten species inbrackish swamps and one species namely water hyacinth (Eichhornia crassipes) in drainage channel. Herbicide formulationsof Unihaz 3, 4, 5, and 6 were effective in controlling aquatic weeds in rainfed swamps. Herbicide formulations of Unihaz 2, 3and 5 were effective in controlling aquatic weeds in brackish swamps. All herbicides formulations were effective in controllingweeds in drainage channels. Moreover, herbicide formulation of Unihaz 5 was more effective in controlling aquatic weeds inrainfed swamps, brackish swamps and drainage channels than other formulations, and it was not significantly different fromthe use of a glyphosate dose of 2 kg ha-1.Keywords: Eichhornia crassipes, fermented coconut water, organic herbicide, new types of herbicides
PENGARUH DOSIS BIOHERBISIDA FORMULASIUNIHAZ DALAM PENGENDALIAN GULMA RUMPUT BELULANG( Eleusine indica L.) Pranata, Gusti; Anwar, Risvan; Suzanna, Eka; Djatmiko, Djatmiko
Jurnal Agroqua: Media Informasi Agronomi dan Budidaya Perairan Vol 21 No 2 (2023): Jurnal Agroqua
Publisher : University of Prof. Dr. Hazairin, SH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32663/ja.v21i2.4053

Abstract

This study aims to determine the effect of doses of bioherbicide formulated by Unihaz in controlling weeds, as well as to determine the dose of bioherbicide formulated by Unihaz which is effective in controlling weeds. This study used a single factor Completely Randomized Design (CRD), namely the Unihaz formulation bioherbicide dose treatment, consisting of 7 levels with 4 replications. The treatments were: dose 1 (40 l/ha), dose 45 l/ha, dose 50 l/ha, dose 55 l/ha, dose 60 l/ha, dose 60 l/ha, and dose 70 l/ha. The data obtained were then analyzed using Fisher's test (F), followed by Duncan's Multiple Range Test (DMRT) with a test level of 5%. The results of this study concluded that the use of a dose of 70 l/ha showed the highest weed mortality rate and the lowest live weed population, the lowest weed wet weight and dry weight which were significantly different from other dose treatments, making it the most effective in controlling grassy grass weeds
PENGARUH MACAM PENGOLAHAN TANAH DAN DOSIS KALIUM TERHADAP TANAMAN JAGUNG MANIS (Zea mays saccharata Sturt.) PADA TANAH SUBSOIL ULTISOL Saputtra, Ari Andika; Saputra, Ari Andika; Anwar, Risvan; Suzanna, Eka
Jurnal Agroqua: Media Informasi Agronomi dan Budidaya Perairan Vol 22 No 1 (2024): Jurnal Agroqua
Publisher : University of Prof. Dr. Hazairin, SH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32663/ja.v22i1.4329

Abstract

This research aims to determine the effect of types of soil processing and potassium dosage on the growth and yield of sweet corn plants in ultisol subsoil soil. The experiment used a Split Plot Design with 3 replications. The main plot is a type of land cultivation consisting of 3 levels, namely: no tillage, minimum tillage, maximum tillage. As a subplot, the dose of potassium fertilizer consists of 4 levels, namely: without fertilizer (control), dose 75 kg/ha, dose 150 kg/ha, and dose 225 kg/ha. The research data was analyzed using Diversity Analysis to find out whether the treatment had a real effect or an insignificant effect. If the results of the analysis have a real or very real effect, then continue with the Duncant's Multiple Range Test (DMRT) at the 5% level.This research concluded that: maximum tillage had a significant effect on plant height at 8 wap, number of leaves in the flowering phase, and ear circumference, and was very significant on leaf width, weight of husked cobs per plant, and weight of husked cobs per sweet corn plant planted in ultisol sub soil. The dose of potassium fertilizer of 225 kg/ha had a real and very significant effect on the variables of plant height at 4 wap, 6 wap, 8 wap, weight of cobs with husks and weight of cobs without husks. gave plant heights of 4 wap, 6 wap, 8 wap, highest cob weight with husks and cob weight without husks in sweet corn planted in Ultisol subsoil soil. The interaction of the type of soil processing and potassium dose influences the weight of cobs with husks per plant and the weight of cobs without husks per plant. The maximum type of tillage and a potassium dosage of 225 kg/ha provide the highest weight of husk-free cobs per plant and the highest weight of husk-free cobs per plant.
Kontrol Karakteristik Fisik-Kimia Tanah Terhadap Emisi CO2 Pada Berbagai Penggunaan Lahan Mineral Tropis Wahyudi Febrianto Putra; Risvan Anwar; Mega Rahma Sari
Jurnal Agroqua: Media Informasi Agronomi dan Budidaya Perairan Vol 24 No 1 (2026): Jurnal Agroqua
Publisher : University of Prof. Dr. Hazairin, SH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32663/ja.v24i1.5626

Abstract

Variations in land-use types and management intensity significantly alter soil physical-chemical properties and dictate carbon dioxide (CO2) emissions fluxes. This study aimed to model the control of soil physical-chemical characteristics on soil CO2 emission rates across various tropical mineral land-use types in Seginim District, South Bengkulu Regency. Utilizing an observational edaphic dataset across six dominant land-use types (corn, oil palm, natural forest, vegetables, coffee, and rubber) with three replications (N=18), advanced statistical modeling via Pearson correlation and multiple linear regression was performed. Soil CO2 emissions were measured in-situ using the modified closed-chamber method followed by alkali absorption titration, while edaphic variables (soil moisture, temperature, bulk density, and pH) were evaluated using standard laboratory procedures. Data were analyzed using Pearson correlation and multiple linear regression. The results revealed that intensive land-use types, namely corn (51.65 ± 2.31 kg/ha/day) and vegetables (43.80 ± 2.75 kg/ha/day), doubled CO2 emissions compared to natural forest (21.87 ± 1.36 kg/ha/day). Soil moisture and bulk density acted as the master variables controlling the emissions. Soil moisture alone showed a strong negative correlation, explaining 83.72% of the emission variance (r = -0.91; p < 0.01). Integrating all edaphic components into a multivariate regression model significantly increased the predictive power to 97.22% (R2 = 0.9722; p < 0.001), driven by the severe physical inhibition effect of bulk density (β = -30.83; p < 0.001). Conversely, soil temperature and pH exerted no significant partial effects due to microclimatic buffering. This study concludes that soil physical properties rigidly govern CO2 emissions across different tropical mineral land uses. Consequently, climate change mitigation strategies must prioritize protecting soil physical structures through water management and compaction prevention rather than chemical manipulation.
UJI EFEKTIFITAS PENAMBAHAN AIR KELAPA FERMENTASI, ASAM ASETAT, ETANOL, DAN GARAM PADA GLIFOSAT TERHADAP GULMA DI PERKEBUNAN SAWIT YANG BELUM MENGHASILKAN Aishar Muhammad Fikri Nur Ikhsan; Risvan Anwar; Eka Suzanna; Farida Aryani; Nurlianti; Prihanani
Jurnal Agroqua: Media Informasi Agronomi dan Budidaya Perairan Vol 23 No 2 (2025): Jurnal Agroqua
Publisher : University of Prof. Dr. Hazairin, SH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32663/ja.v23i2.5297

Abstract

Oil palm is a strategic commodity that plays a vital role in Indonesia's economy, but its productivity is often hindered by weed infestation. Chemical weed control commonly relies on synthetic herbicides, which pose environmental risks. This study aims to evaluate the effectiveness of a new natural-based herbicide formulation consisting of fermented coconut water, ethanol, acetic acid, salt, and low-dose glyphosate in immature oil palm plantations. The research employed a single-factor Randomized Complete Block Design (RCBD) with nine formulation treatments and three replications. Vegetation analysis revealed three dominant weed species in the experimental area: Borreria alata, Ageratum conyzoides, and Asystasia gangetica. The results indicated that all herbicide formulations were able to suppress weed populations and dry weight, although the differences were not statistically significant. Numerically, Formulation 8 (F8) provided the best results, achieving a weed mortality rate of up to 99%. In contrast to previous formulations requiring high application volumes (35–50 L/ha), this new formulation is more efficient at a dosage of 4–6 L/ha. This formulation works synergistically, is environmentally friendly, and has the potential to support sustainable agricultural practices
Co-Authors Agustina, Beta Aishar Muhammad Fikri Nur Ikhsan Antonius Silaen Dicky Wahyudi Djatmiko Djatmiko Djatmiko Djatmiko Djatmiko Djatmiko Djatmiko Djatmiko Djatmiko Djatmiko, Djatmiko Dwi Andika, Windi Sambaz Eka Suzanna Farida Aryani Farida Aryani Farida Aryani Gartiwo, dan M. Tanu Greistian Harry Saputra Hadi Nasbey Ikhsan Hasibuan Juanda Iskandar Mega Rahma Sari Neti Kesumawati, Neti Nurlianti NURSEHA NURSEHA Pranata, Gusti Prihanani Prihanani Prihanani Rusman Aswardi Saputra, Ari Andika Saputtra, Ari Andika Sarina Sarina Sri Mulatsih Stefanie Juveria Sunarti Sunarti Sunarti Sunarti Syahpiri, Marizan Wahyudi Febrianto Putra Yarmadi Yarmadi Yudianto Yudianto