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All Journal Journal of Degraded and Mining Lands Management Caraka Tani: Journal of Sustainable Agriculture Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Agroteknika Community Empowerment Journal of Applied Plant Technology Acta Solum
M. Ghufron Chakim
Department Of Agrotechnology, Faculty Of Agriculture, Universitas Pembangunan Nasional Veteran Jawa Timur, Surabaya
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Economics, Econometrics & Finance Education Energy Engineering Law, Crime, Criminology & Criminal Justice Mechanical Engineering Public Health Social Sciences

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Humic acid characterization in soil from various land uses in Tutur District, Pasuruan Regency of East Java M Ghufron Chakim; Wanti Mindari; S Siswanto; Purnomo Edi Sasongko
Journal of Degraded and Mining Lands Management Vol 7, No 4 (2020)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2020.074.2279

Abstract

Changes in land use will impact on the characteristics of humic acid in the soil due to biotic and abiotic factors. The study aimed to characterize humic acid in soil from various land uses in Tutur District, Pasuruan Regency of East Java. Soil sampling was carried out on six land uses, namely mixed garden, coffee plantation, apple orchard, vegetable garden, pine forest, and conservation forest. Analysis of soil samples included soil chemical characteristics (pH, redox, organic-C, and total-N) and characterization of humic acid included colour ratio of E4/E6, total acidity, carboxyl groups, and phenolic groups. The results showed that the land use of coffee plantation provided the best soil fertility indicated by the contents of humic acid, total-N, organic-C in the soil that were higher than that of other land-uses. The highest humification index was obtained for coffee plantation land use with the measurement of the E4/E6 colour ratio of 4.56 index value. The best characteristics based on the total value of acidity, the -COOH group and the phenolic -OH group were observed in the coffee plantation. This was supported by the characteristic of humic acid through the humification index or E4/E6 colour ratio, as well as the low phenolic -OH value which is a characteristic of fulvic acid.
The potential of organomineral amendments in increasing the adsorption of lead (Pb) and cadmium (Cd) in a sandy loam soil M Ghufron Chakim; Wanti Mindari; Bakti Wisnu Widjajani
Journal of Degraded and Mining Lands Management Vol 9, No 4 (2022)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2022.094.3753

Abstract

Sandy loam soils contain low organic carbon and have low ion adsorption capacity. Under certain conditions, the soils contain heavy metals that are harmful to plants. Soil amendments such as biosilica and humic acid from natural sources are expected to increase the soil adsorption capacity to heavy metals. A simulation experiment consisting of two factors was conducted to explore the effectiveness of humic and biosilica, as soil amendments, in adsorbing heavy metals from soils. The first factor was biosilica dose composing 0 t ha-1 (S0), 0.5 t ha-1 (S1), 1 t ha-1 (S2), and 1.5 t ha-1 (S3). The second factor was the humic acid dose composing 0 kg ha-1 (H0), 20 kg ha-1 (H1), 40 kg ha-1 (H2), and 60 kg ha-1 (H3). The humic acid and biosilica were applied to soil contaminated with Pb and Cd. The results showed that the combination of 0.5 t biosilica ha-1 (S1) and 20 kg humic acid ha-1 (H1) significantly increased soil pH, organic C content, cation exchange capacity, and reduced the availability of Pb and Cd at 90 days after treatment. The Pb and Cd contents in plant tissue decreased from roots to grains. Humic acid treatment was more effective in absorbing Pb of 86.89-90.49% and Cd of 71.47-76.33% than other treatments.
The Optimization of Biosilica and Humic Acid to Increase Soil Nutrient Availability and Nutrient Uptake in Rice Plant in Sandy Soil Wanti Mindari; M. Ghufron Chakim; Bakti Wisnu Widjajani; Purnomo Edi Sasongko; Haidar Fari Aditya; Ahmad Mustapha Mohamad Pazi; Seca Gandaseca
Caraka Tani: Journal of Sustainable Agriculture Vol 40, No 1 (2025): January
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v40i1.89018

Abstract

Nutrients in sandy soil are limited due to low absorption capacity and are easily leached or evaporated. Biosilica and humic acid extracted from compost and husk ash can improve the soil structure and absorption capacity to optimize the availability and uptake of nutrients. Therefore, this research aims to examine the optimal application dose of biosilica and humic acid to improve the chemical properties of soil with a sandy texture. The experiment was structured based on a completely randomized design (CRD). Factor 1 consisted of biosilica doses of 0, 0.5, 1.0, and 1.5 tons ha-1, while factor 2 comprised humic acid doses of 0, 20, 40, and 60 kg ha-1. Data analysis was performed using ANOVA, followed by Tukey’s Honest Significant Difference (HSD) test, correlation, and determination analysis. The study results indicate that the combination of biosilica and humic acid contributes to the changes in nutrient availability. The impact of the treatment was observed 90 days after application on the parameters of soil pH, organic C, total N, and exchangeable K. The effects of the treatment were also evident in plant nutrient uptake, specifically in total N in the roots and total K in the stems. The optimal combination for improving soil nutrient availability and nutrient uptake in plant tissues was a biosilica dose of 1.0 tons ha-1 (S2) and humic acid at 40 kg ha-1 (H2).
Efisiensi Aplikasi Asam Humat dan Silika Terhadap Kadar Nitrogen (N) Tanah dan Tanaman Padi di Lahan Sawah Sekitar Industri Andahrino, Berliana Putri; Mindari, Wanti; Sasongko, Purnomo Edi; Chakim, M. Ghufron
Agroteknika Vol 8 No 2 (2025): Juni 2025
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/agroteknika.v8i2.533

Abstract

Permasalahan global terkait lahan tercemar akibat aktivitas industri berdampak terhadap penurunan produksi tanaman padi di Sidoarjo. Endapan logam dari limbah industri dapat mengontaminasi lahan tersebut. Maka dari itu solusi yang dapat dilakukan untuk perbaikan lahan sawah dengan pemberian pembenah tanah. Tujuan penelitian untuk mengkaji efisiensi asam humat dan silika untuk meningkatkan N dalam tanah dan serapan nitrogen tanaman padi. Penelitian ini dilaksanakan di Kebun Percobaan Kecamatan Balongpanggang, Kabupaten Gresik. Penelitian ini disusun menurut Rancangan Acak Lengkap (RAL) Faktorial. Faktor pertama dari dosis asam humat dan silika sebanyak 0 kg.ha-1, 10 kg.ha-1, 20 kg.ha-1, dan 30 kg.ha-1 . faktor kedua terdiri dari 3 lokasi yang terindikasi tercemar. Parameter pengamatan dibagi menjadi 3 yaitu analisa sub-sampel tanah, pengamatan pertumbuhan tanaman padi dan serapan nitrogen tanaman padi. Analisi data dianalisis dengan menggunakan keragaman (ANOVA) terhadap sifat kimia tanah dengan uji lanjut BNJ 95%. Hasil dari penelitian menunjukkan aplikasi asam humat silika berpengaruh nyata terhadap kadar nitrogen di dalam tanah dan serapan tanaman padi, tetapi tidak berpengaruh nyata terhadap pertumbuhan padi. Dosis terbaik pemberian asam humat silika pada lahan sawah dekat industri farmasi (L1) dan lahan sawah dekat industri kertas (L3) adalah 30 kg.ha-1 (P3) dengan nilai N sebesar 0,16%, sementara pada lahan sawah dekat industri pakan ternak (L2) dosis terbaik adalah 20 kg.ha-1 (P2) dengan nilai N sebesar 0,19%. Efisiensi serapan tanaman tertinggi yaitu terdapat pada perlakuan pada lahan sawah dekat industri pakan ternak dengan dosis 30 kg.ha-1 yang menghasilkan efisiensi serapan sebesar 52% pada bagian akar, sedangkan efisiensi tertinggi pada bagian daun menghasilkan efisiensi sebesar 64,62% dengan dosis 10 kg.ha-1.
Modernization of hydroponic farming using rice husk for community food security in Karang Langit, Lamongan Pujiastuti, Caecilia; Muchamad, Raka Selaksa Charisma; Rohmah, Aisyah Alifatul Zahidah; Chakim, M. Ghufron; Fajrin, Alifah Nur Aini; Rizal, Achmad; Azka, Salsabilla
Community Empowerment Vol 10 No 8 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ce.14476

Abstract

Rice husk waste is an abundant agricultural byproduct in Karang Langit Village, Lamongan, but its utilization is still limited, posing a potential environmental problem. This community service program aims to modernize agricultural practices by utilizing rice husk as a hydroponic growing medium to support food security and promote a circular economy. The methods applied include community coordination, carbonization of rice husks, preparation of the hydroponic system, and both theoretical and practical hands-on training. Evaluation results show a significant increase in participants’ knowledge by 32%. A total of 85% of participants successfully prepared a viable rice-husk-based growing medium, and 75% were able to cultivate and harvest leafy vegetables in the trial phase. Additionally, a farmer group was formed and is committed to independently continuing hydroponic practices after the program’s conclusion. These results confirm that utilizing rice husk as a hydroponic medium not only enhances community skills and self-sufficiency but also opens new economic opportunities. This model is recommended for replication in other agricultural areas to support local food security and environmental sustainability.
Humic Silica for Optimising Soil Phosphorus Availability and Phosphorus Uptake by Maize Plants on Industrial Contaminated Lands Aditama, Diqy Ridwan; Mindari, Wanti; Maroeto, Maroeto; Chakim, M Ghufron
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 5 (2025): October 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v14i5.1748-1757

Abstract

This study aimed to evaluate the effect of humic-silica application on P availability and P uptake by corn in land contaminated with heavy metals. The experiment was arranged in a Completely Randomized Design (CRD) with two treatment factors. The first factor consisted of three industrial locations: the pharmaceutical industry, the animal feed industry, and the paper industry. The second factor consisted of four levels of humic-silica application (in kg/ha): 0, 10, 20, and 30. Observations were made at the age of 14 and 70 days after planting (DAP). The parameters included soil organic carbon, Cation Exchange Capacity (CEC), soil P-available, and total P uptake by corn plants. Results showed that the humic-silica application at 20 kg/ha had a significant effect on P-available and P uptake by corn plants. This positive effect was consistent in the three industrial locations, both in 14 DAP and 70 DAP observations. These findings indicate that the use of humic-silica at 20 kg/ha has potential to reduce the negative impacts of heavy metal pollution on the availability of plant nutrients in industrial lands. This study provides insight into strategies for managing industrially contaminated lands to increase agricultural productivity, especially in terms of increasing the availability and absorption of phosphorus by corn plants.
Effectiveness of Silica Humate in Improving Soil Quality in Paddy Field Contaminated by Industrial Waste Kartika, Nanda Ajeng; Mindari, Wanti; Siswanto, Siswanto; Chakim, M. Ghufron
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 5 (2025): October 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v14i5.1913-1924

Abstract

Soil degradation caused by industrial waste in Sidoarjo Regency has led to a decline in agricultural productivity, necessitating soil rehabilitation efforts. This study aimed to evaluate the effectiveness of silica humate as a soil amendment on paddy fields contaminated by industrial waste. The experiments were arranged according to the Factorial Complete Randomized Design, where the first factor: 3 kinds of industrial waste namely the pharmaceutical, livestock feed, and paper industry. Second factor; 5 doses of silica humat (0, 10, 20, 30, and 40 kg/ha). The parameters included soil pH, cation exchange capacity (CEC), total nitrogen (total-N), and available phosphorus (available-P), measured at 14 and 56 days after application (DAA). Results showed that the effectiveness of silica humate varied depending on the type of industrial waste and increased over time. On land contaminated with pharmaceutical waste, silica humate increased CEC from 44.34 to 52.52 cmol(+)/kg and available-P from 27.21 to 36.69 ppm at low doses. Land contaminated with animal feed waste showed the best results at a dose of 20 kg/ha, while land contaminated with paper industry waste required higher doses. These findings suggest that silica humate is promising as a viable soil amendment strategy, though optimal dosage rates must be tailored to specific industrial contamination types for maximum rehabilitation effectiveness.
Demonstrasi Plot Budidaya Melon secara Hidroponik dalam Screenhouse dengan Modifikasi Insulasi Panas pada Kelompok Tani Barokah di Kecamatan Pakal, Surabaya: Hydroponic Melon Cultivation Demonstration in an Insulated Screenhouse at Barokah Farmer Group, Pakal District, Surabaya Sasongko, Purnomo Edi; Chakim, M. Ghufron; Handini, Aline Sisi
PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol. 10 No. 11 (2025): PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Institute for Research and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/pengabdianmu.v10i11.10436

Abstract

Urban farming activities in Surabaya have continued to grow rapidly since the end of the COVID-19 pandemic in 2022, meeting approximately 20 percent of the city's vegetable needs. The improved skills of various vegetable cultivation groups, including the Barokah Farmers Group in Babat Jerawat Village, Pakal District, have led them to be named "Jawara". Armed with this achievement, they are attempting to expand into seasonal fruit farming using hydroponic technology under the shade of a screen house. On the other hand, Surabaya's hot weather and relatively high humidity are obstacles to implementing hydroponic cultivation systems in screenhouses. Exposure to intense sunlight during the day can increase the temperature of the pipes containing the net pots and nutrient reservoirs to 45°C, thus impacting the temperature of the AB Mix nutrient solution and the physiology of melon plant roots. Armed with experience from research and melon cultivation practices, the community service implementation team conducted a demonstration plot of superior hydroponic melon cultivation in a screenhouse. Based on the findings of the hydroponic installation research on campus, several modifications have been made to the hydroponic installation, including the addition of a cooling layer for the netpots and hydroponic nutrient reservoirs. The added heat insulation layer maintains the temperature of the piping and nutrient reservoir between 30-32°C. This is expected to allow the melon plants to grow normally without environmental stress until harvest, when they yield optimal fruit.
Integration of Drone and GIS Data for Precision Land Use Mapping in Belayung Baru Village, Banjar Regency, South Kalimantan Saputro, Maryam Eyka Dijono; Wijayanti, Fitri; Aditya, Haidar Fari; Chakim, M Ghufron
Journal of Applied Plant Technology Vol 4 No 2 (2025): Journal of Applied Plant Technology (JAPT)
Publisher : Agrotechnology Study Program, Faculty of Agriculture, Wijaya Kusuma Surabaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30742/w514gz87

Abstract

The rapid advancement of remote sensing technology and Geographic Information Systems (GIS) has substantially enhanced the accuracy, efficiency, and comprehensiveness of spatial data acquisition and analysis. This study investigates land-use patterns within a selected area of Belayung Baru Village, Kertak Hanyar District, Banjar Regency, South Kalimantan, employing high-resolution drone imagery to generate detailed spatial information. A multirotor drone-based mapping survey was utilized, with data processed through Agisoft Metashape and ArcGIS to produce orthomosaic images and thematic land-use maps. The results reveal that the study area encompasses approximately 93.74 hectares, predominantly consisting of rice fields (65.86 ha), residential zones (17.15 ha), and wetlands (6.69 ha). Visual interpretation of drone imagery demonstrates pronounced seasonal contrasts between rice fields and wetlands in terms of spectral tone, texture, and spatial pattern. Furthermore, the dynamic hydrological conditions of the wetland ecosystem substantially influence local agricultural cycles, restricting cultivation to the dry season when the water table recedes. Overall, this study underscores the effectiveness of drone-based geospatial technology in delivering precise spatial mapping outputs that support sustainable land-use management and planning.
Mitigating Heavy Metal Contamination in Agricultural Soils with Biosilica-Humic Acid as Soil Amendment Strategies in Industrial Peripheries Chakim, M Ghufron; Mindari, Wanti; Sasongko, Purnomo Edi
Acta Solum Vol. 3 No. 3 (2025): Juli 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.v3i3.3367

Abstract

Soil contamination by heavy metals poses a significant threat to sustainable agriculture, especially in areas adjacent to industrial zones. This study demonstrates that while the initial application of the biosilica-humic acid (BSi-HA) soil amendment did not result in statistically significant changes in soil chemical properties within the first 7 days of incubation, prolonged incubation for 60 days revealed meaningful effects, particularly in reducing heavy metal availability in soil. Significant decreases in iron (Fe) and lead (Pb) concentrations were observed over time, with Fe reductions ranging from 45–67% and Pb reductions between 8–40%. These results are attributed to the synergistic effect of functional groups in BSi-HA—especially the carboxyl (–COOH) and hydroxyl (–OH) groups in humic acid—which exhibit high metal-binding affinity under acidic conditions (pH ~5). Although soil fertility parameters such as C-organic content and cation exchange capacity (CEC) showed a declining trend due to microbial activity during incubation, the ability of BSi-HA to immobilize heavy metals without exceeding safe thresholds highlights its potential as a sustainable soil amendment. Moreover, previous findings indicating reductions of up to 90% for Pb and 76% for Cd in plant tissues further support the efficacy of BSi-HA in mitigating heavy metal contamination in agricultural soils near industrial zones. Further long-term studies are recommended to evaluate BSi-HA's remediation capacity, persistence, and impact on crop yield and food safety. Combining biosilica and humic acid offers a promising, eco-friendly approach for managing heavy metal contamination in soils.
Co-Authors Achmad Rizal Aditama, Diqy Ridwan Aditya, Haidar Fari Ahmad Mustapha Mohamad Pazi Aisyah Alifatul Zahidah Rohmah Andahrino, Berliana Putri Azka, Salsabilla Bakti Wisnu Widjajani Fajrin, Alifah Nur Aini Fitri Wijayanti Haidar Fari Aditya Handini, Aline Sisi Kartika, Nanda Ajeng Maroeto Maroeto Muchamad, Raka Selaksa Charisma Pujiastuti, Caecilia Purnomo Edi Sasongko S Siswanto S Siswanto Saputro, Maryam Eyka Dijono Seca Gandaseca Wanti Mindari