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All Journal HAYATI Journal of Biosciences Agrikultura Journal of Degraded and Mining Lands Management AGRIVITA, Journal of Agricultural Science Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Caraka Tani: Journal of Sustainable Agriculture Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) JURNAL ILMIAH AGRINECA Jurnal Sylva Lestari
Ongko Cahyono
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Energy Engineering Environmental Science Materials Science & Nanotechnology

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Mapping of Land Suitability for Growing Tobacco (Nicotiana tabacum L.) Under Various Slope Using Geographic Information Systems Mujiyo, Mujiyo; Irawaningsih, Daradinda Surya; Minardi, Slamet; Cahyono, Ongko
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 13 No. 2 (2024): June 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i2.572-580

Abstract

The study aims to identify the classes and the determinant factors of land suitability of Tobacco in order to provide recommendations for land management as an effort in increasing the development of Tobacco in Eromoko District, Wonogiri Regency, Indonesia. This research used a descriptive-exploratory approach by field surveys, laboratory analysis, and matching the data with growth requirement characteristics for Tobacco crops. The field survey was carried out based on a working map, namely the Land Mapping Unit (LMU), overlaid maps of soil type, slope, and rainfall. Research results illustrated that 18 LMUs were included in the marginally suitable class (S3) (4,968.78 ha, about 51% of research area) with limiting factors wa; oa; nr; na; eh, and 8 LMUs were included in the unsuitable class (N) (4,919.11 ha, about 49% of research area) with limiting factors N and eh. This study provide information about the land suitability class and the limiting factors each area to determine the potential success of Tobacco cultivation and make suitable improvement efforts. Keywords: Hilly land, Land management, Limiting factors, Sustainable agriculture, Tobacco growth potential.
Termites as Soil Engineers: A Study on Organic Carbon and Nutrient Dynamics using Baiting Techniques in Tropical Forest Ecosystem Febriani, Sri Rezeki; Ariyanto, Dwi Priyo; Cahyono, Ongko; Tarmadi, Didi; Wikantyoso, Bramantyo; Himmi, Setiawan Khoirul; Zaki, Muhamad Khoiru
HAYATI Journal of Biosciences Vol. 33 No. 2 (2026): March 2026
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.33.2.394-403

Abstract

This study explores how termite activity affects soil chemistry, those are Soil Organic Matter (SOC) and nutrient dynamics in pine and mahagony forest of varying ages in the Bromo Forest, Indonesia. Termite activity was assessed using wooden poles placed in PVC pipes as bait, which also served for soil sampling. The results showed significant differences in SOC and total NPK levels among different pole damage classes in each forest. The highest values were observed in pole damage class 4. Termite-influenced soil, especially those affected by the genera Macrotermes sp., Microtermes sp., and Schedorhinotermes sp., showed the highest concentrations of SOC and NPK (4.97%, 0.51%, 15.42 mg/100 g, and 45.9 mg/100 g, respectively). The termite diversity index showed moderate diversity in all pine forests and low diversity in mahogany forests. The termite diversity index indicated moderate diversity in pine forests and low diversity in mahogany forests, likely influenced by bait type. These results demonstrate that termite activity significantly enhances soil nutrient content and can be used as an indicator of soil fertility status in tropical forest ecosystems.
Assessment of Land Suitability in Highly Area of Ende, East Nusa Tenggara, Indonesia, as a Basic Strategy for Growing Coffee (Coffea arabica) Mujiyo, Mujiyo; Lutfi, Hilda Fadhila; Herawati, Aktavia; Cahyono, Ongko; Wahyuni, Sri; Mutiara, Charly; Lanamana, Willybrodus
Jurnal Agrikultura Vol 36, No 3 (2025): Desember, 2025
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/agrikultura.v36i3.64802

Abstract

Ende Sub-District, East Nusa Tenggara, has various topographies with an altitude of 0-1,100 m asl that can potentially grow Arabica coffee. Still, there is no information available regarding the suitability of the land. This study aims to evaluate the actual land suitability of Arabica coffee based on soil and environmental characteristics. The research method is descriptive explorative through a field survey approach supported by laboratory analysis. Determination of SMU (soil map unit) was carried out by purposive sampling through boring at 31 points, then classified based on soil type to obtain five pedons that represent SMU in Ende Sub-District. Soil sampling was carried out on each layer of each pedon. Data analysis used ANOVA and Pearson correlation tests to determine the determining factors that influence the land suitability class of Arabica coffee. The evaluation results showed that the actual land suitability for Arabica coffee was marginally suitable (S3) and unsuitable (N) classes, with limiting factors, i.e. average temperature, altitude, length of dry period, drainage, base saturation, available P, slope, and erosion hazard. The results of the ANOVA test showed that altitude significantly affected the land suitability class for Arabica coffee, with the best land suitability class at an altitude of 800-1,100 masl. Based on the correlation between land suitability class and land characteristic parameters, the determining factors for land suitability class include average temperature, humidity, drainage, texture, coarse material, total N, available K, erosion hazard, surface rocks, and rock outcrops. Land improvement recommendations are based on making an irrigation system, providing shade plants, N fertilization (urea fertilizer), K fertilization (KCl fertilizer), and terracing.
Physical Properties of Alfisols, Growth and Products of Hybrid Corn Affected by Organic and Inorganic Fertilizer Syamsiyah, Jauhari; Minardi, Slamet; Herdiansyah, Ganjar; Cahyono, Ongko; Mentari, Fegi Cahya
Caraka Tani: Journal of Sustainable Agriculture Vol 38, No 1 (2023): April
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v38i1.65014

Abstract

The nutrients of plants and the physical condition of the soil must both be considered to increase corn productivity. The continuous use of inorganic fertilizer without manures will cause a decrease in the physical properties of the soil. Therefore, this study aims to obtain doses of organic fertilizer from cow manure and inorganic fertilizers namely urea, KCl and SP-36 that will give the best effect on the physical properties of Alfisols, growth and yield of hybrid corn. The experiment was carried out using the randomized complete block design (RCBD) with two factors namely organic and inorganic fertilizers. Each factor was given at four dosages: 1, ¾, ½ and ¼ of the standard dose each with three replications. Observation parameters include bulk and particle density, soil porosity, aggregate stability, root volume and fresh weight, plant height, as well as the weight of corn with and without husks. The results showed that organic and inorganic fertilizers significantly affected bulk density, soil porosity, aggregate stability, root fresh weight, root volume, as well as the weight of corn with and without husks. Additionally, treatment with 7.5 to 10 tons of organic fertilizer as well as ¼, ¾ and 1 dose of inorganic fertilizers produced the best effect on soil physical properties of Alfisols, growth and yield of hybrid corn, while the lowest results were obtained in the control treatment. This indicates that organic treatment can reduce the use of inorganic fertilizers between ¼ to ¾ of the standard dose.
Distribution and correlations of arbuscular mycorrhizal fungi and phosphate-solubilizing bacteria with Pb and Cd in landfill rhizosphere soils Cahyani, Vita Ratri; Ariyanti, Febriana Ida Dwi; Cahyono, Ongko; Maro’ah, Siti
Journal of Degraded and Mining Lands Management Vol. 13 No. 4 (2026)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2026.134.10887

Abstract

Landfills accumulate various toxic substances, including heavy metals, yet plants can persist in these environments through interactions with functional rhizosphere microorganisms. This study investigated the distribution of cadmium (Cd), lead (Pb), and nutrient status in the rhizosphere soils of phytoremediator plants at the Putri Cempo landfill, and their relationships with arbuscular mycorrhizal fungi (AMF) and phosphate-solubilizing bacteria (PSB) across spatial gradients. Rhizosphere soils were collected from phytoremediators at landfill sites (L1, 0 m; L2, 100 m from L1) and from an agricultural site outside the landfill (L3, 500 m from L1) as a reference. Heavy metals, soil nutrients, AMF population density and diversity, and PSB communities were analyzed. All parameters, except soil pH, differed significantly among sites. The highest Pb and Cd concentrations were recorded at L1 (Pb: 75.28 mg/kg, approximately 16 times higher than L3; Cd: 0.36 mg/kg, undetected at L3), accompanied by elevated nutrient levels. Microbial communities exhibited clear spatial patterns: AMF abundance, spore density, and root colonization increased with distance from the landfill, reaching their highest values at L3, whereas PSB abundance and morphotype diversity peaked at L2. Among the phytoremediator species, Jatropha gossypiifolia accumulated the highest Pb and Cd concentrations and harbored the greatest PSB abundance, while Senna alata exhibited the strongest AMF associations. These metal-tolerant microbes associated with phytoremediator rhizospheres exhibit dual potential as biofertilizers and bioremediation agents.
Hyperaccumulator rhizosphere soil from a Pb-contaminated landfill and phosphate-solubilizing bacteria enhance Calotropis gigantea stem cutting growth, phytoremediation, and arbuscular mycorrhiza propagation Ariyanti, Febriana Ida Dwi; Cahyani, Vita Ratri; Cahyono, Ongko
Journal of Degraded and Mining Lands Management Vol. 13 No. 4 (2026)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2026.134.11435

Abstract

Rhizosphere soils of phytoremediator plants growing in Pb-contaminated landfill sites are natural reservoirs of indigenous arbuscular mycorrhizal fungi (AMF) and phosphate-solubilizing bacteria (PSB), which can enhance plant growth and phytoremediation. This study evaluated the combined effects of rhizosphere soils containing AMF (rhizomyco) from three phytoremediators (Calotropis gigantea, Jatropha gossypiifolia, and Senna alata) and PSB inoculation. The  pot experiment was conducted using a 3×2 factorial in a completely randomized design with four replications. The primary parameters were C. gigantea stem-cutting biomass, Pb uptake, and AMF propagation potential. Data were analyzed using ANOVA, DMRT, and Pearson’s correlation analysis. S. alata rhizomyco resulted in the highest C. gigantea stem-cutting biomass growth and Pb uptake, despite exhibiting the lowest AMF propagation potential. In contrast, J. gossypiifolia rhizomyco showed the highest AMF propagation potential but produced the lowest plant biomass among the other rhizomyco sources, suggesting that AMF propagation potential does not necessarily reflect symbiotic effectiveness in promoting plant growth and Pb uptake. Meanwhile, PSB inoculation enhanced C. gigantea stem-cutting biomass and Pb uptake, while promoting Pb retention in roots and limiting its translocation to shoots, resulting in root BAF values >1 and TF values <1. These findings highlight the potential of selecting effective rhizomyco communities and combining them with PSB inoculation to improve the growth and Pb phytoremediation capacity of C. gigantea stem cuttings.
Co-Authors Agus Budiyono AKTAVIA HERAWATI Ariyanti, Febriana Ida Dwi Charly Mutiara Dwi Priyo Ariyanto Febriani, Sri Rezeki Firmansyah, Mohammad Iqbal Ganjar Herdiansyah, Ganjar Hery Widijanto Himmi, Setiawan Khoirul Irawaningsih, Daradinda Surya Jauhari Syamsiyah Lanamana, Willybrodus Linayanti Darsana Loveana, Okta Lutfi, Hilda Fadhila Mentari, Fegi Cahya Muhamad Khoiru Zaki Mujiyo Nunik Puji Lestari, Nunik Puji Pardono Pardono Pramudita, Tesalonika Purwanto Purwanto Rachmawatie, Srie Juli Rani Rahmawati Siti Maro’ah Slamet Minardi Sri Hartati Sri Hartati Sri Wahyuni Sudadi Sudadi Sumijati Sumijati Tarmadi, Didi Tiara Meti Pratingkas Vita Ratri Cahyani Widyatmani Sih Dewi Wikantyoso, Bramantyo