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All Journal Cannarium (Jurnal Ilmu-ilmu Pertanian) TERRA : Journal of Land Restoration Jurnal Agroteknologi dan Pertanian (JURAGAN)
Heru Widiyono, Heru
Universitas Bengkulu
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Economics, Econometrics & Finance Environmental Science Social Sciences

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PENGARUH METODE PEMBERIAN PUPUK ORGANIK CAIR LIMBAH RUMAH TANGGA TERHADAP SERAPAN P DAN HASIL JAGUNG MANIS DI ENTISOLS salamah, umi; Putri, Masmoni Ade; Widiyono, Heru; Barchia, M Faiz; Herman, Welly
Jurnal Agroteknologi dan Pertanian (JURAGAN) Vol 3 No 1 (2022): JURAGAN (JURNAL AGROTEKNOLOGI DAN PERTANIAN) April 2022
Publisher : LPPM Universitas Bina Insan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32767/juragan.v2i2.73

Abstract

Tanah entisol memiliki masalah terhadap sifat fisik dan kimianya. Sehingga membutuhkan pupuk organik cair dapat meningkatkan aktifitas biologi, kimia, dan fisik tanah. Penelitian ini bertujuan untuk mendapatkan metode pemberian pupuk organik cair limbah rumah tangga yang tepat terhadap serapan P dan hasil tanaman jagung manis (Zea mays var saccharata sturt) pada tanah entisols. Penelitian ini telah dilaksanakan pada Juli - September 2020 di Kelurahan Beringin Raya, Kecamatan Muara Bangkahulu, Kota Bengkulu. Penelitian disusun menggunakan Rancangan Acak Lengkap (RAL) faktor tunggal. Perlakuan dalam penelitian ini adalah kombinasi dari metode aplikasi POC dan konsentrasi POC. Metode aplikasi POC meliputi disemprotkan ke daun, disiram ke tanah, serta disemprtokan ke daun dan disiram ke tanah, sedangan konsentrasi yang digunakan adalah 100 ml/L, 200 ml/L, 300 ml/L, dan 400 ml/L. Hasil penelitian menunjukkan bahwa metode aplikasi POC yang disemprotkan ke daun dan tanah dengan konsetrasi 300 ml/L adalah yang paling tepat. Hal ini dapat dilihat dari P-jaringan tertinggi yaitu 0,40%, serapan P tertinggi yaitu 1,58 g, tinggi tanaman tertinggi yaitu setinggi 233,67 cm, bobot brangkasan kering terberat yaitu 395,90 g, diameter tongkol terbesar yaitu 67,20 mm, dan bobot tongkol berkelobot terberat yaitu 450,67 g. Namun hasilnya tidak berbeda nyata dengan aplikasi POC yang disemprotkan ke daun dengan konsentrasi 100 ml/L air. Hal ini dibuktikan pada nilai hasil tinggi tanaman 205,67 cm, diameter tongkol 61,88 mm dan bobot tongkol berkelobot 408,67 g. Sehingga aplikasi POC yang disemprotkan ke daun dengan konsentrasi 100 ml/L air lebih baik dari segi ekonomis dan efisiensi.
Cucumber (Cucumis sativus L.) Growth and Yield as Respons by Dolomite and Potassium Application on Peat Soil Padang, Agri Andi Saputra; Herawati, Reny; Barchia, M. Faiz; Widiyono, Heru; Simanihuruk, Bilman W.
TERRA : Journal of Land Restoration Vol. 6 No. 1 (2023)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/terra.6.1.12-18

Abstract

This study aimed to determine the appropriate dose of dolomite, dose of K fertilizer, and the interaction of the treatments on the growth and yield of cucumber on peat soil soil. This research was conducted in Medan Baru, Muara Bangka Hulu Sub-district, Bengkulu City at an altitude of ± 10 meters above sea levelfrom September to December 2021. The experiment method used was a factorial Randomized Complete Block Design (RCBD) consisting of two factors; first, dose of dolomite with 3 levels consisting of 0.00 tons ha-1, 1.25 tons ha-1, and 2.5 tons ha-1 Dolomite, and the second, dose of potassium fertilizer consisting of 4 levels; 0 kg ha-1, 200 kg ha-1, 400 kg ha-1, and 600 kg ha-1 with 3 replications. Each unit of the experiment pot was planted with 3 plants therefore whole samples were obtained 108 experimental plant units (polybags). Cucumber growth and yield significantly responded to the dolomite and potassium application. The interaction between the dolomite and the potassium applied significantly to the cucumber planted shown by plant length, the diameter, and length of the fruit.  
Enhancing Entisols Physical Properties and Sweet Corn Agronomic Performances with Liquid Organic Fertilizer and Cow Manure Dwipa, Eliza Rahma; Hasanudin; Widiyono, Heru; Murcitro, Bambang Gonggo; Masdar
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.6.2.73-80

Abstract

Entisols, comprising approximately 10.6% of Indonesia's land area, are youthful soils distinguished by sandy texture, loose structure, ample aeration porosity, rapid permeability, low water retention, and diminished organic matter. This study determines the optimal dosages of liquid organic fertilizer and cow manure capable of enhancing the physical attributes of Entisols and the growth and yield of sweet corn plants. Employing a Randomized Complete Block Design (RCBD) with two factors, the research evaluates three doses of cow manure (0 tons ha-1, 5 tons ha-1, and 10 tons ha-1) and four concentrations of liquid organic fertilizer (0 mL L-1, 100 mL L-1, 200 mL L-1, and 300 mL L-1). The findings reveal that liquid organic fertilizer significantly influenced soil wet weight and pF pressure at 0.1 atm (12.68 g-1). Application of cow manure demonstrates tangible improvements in Entisols properties, with water content at 12.15%, bulk density at 0.73 g m-3, permeability at 90.57 cm hour-1, and soil wet weight and pF pressure at 0.1 atm (15.10 g). Furthermore, liquid organic fertilizer contributes to a plant height of 176.82 cm and husk cob weight of 8,545 kg ha-1, while cow manure results in a plant height of 174.05 cm and husk cob weight of 8.044 kg ha-1. The optimal combination emerged with a 300 mL L-1 concentration of liquid organic fertilizer or a 10 tons ha-1 dose of cow manure,  showcasing superior enhancements in Entisols' physical properties, as well as sweet corn plant growth and yield.
Potential Land Suitability for Cardamom (Elettaria cardamomum) Cultivation in Topos District, Lebong Regency Kuswara, Dio Afrizal; Hindarto, Kanang Setyo; Utami, Kartika; Barchia, Muhammad Faiz; Widiyono, Heru
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.7.2.53-65

Abstract

Land suitability evaluation is crucial for determining the characteristics and quality of land to support cardamom cultivation. This study aims to map land suitability classes and assess the potential for cardamom cultivation in Topos District, Lebong Regency. Conducted from June to December 2023, the research employed survey methods, land classification, and descriptive presentation of results. Tools such as Avenza Map, soil augers, GPS, clinometers, Munsell Soil Color Charts, and laboratory soil analysis were used, supplemented with secondary data sources. Land suitability was determined using a matching technique for individual land characteristics. The results indicated that the actual land suitability for cardamom in Topos District is predominantly in the S3 class, covering 11,722.95 hectares (71.43%), limited by factors such as nutrient availability and steep slopes. Potential land suitability was classified into four categories: S1 (1,825.94 hectares, 11.12%), S1rc (727.35 hectares, 4.43%), S2rc (2,342.88 hectares, 14.27%), and S2 (5,326.63 hectares, 32.46%). Recommended improvements include liming, fertilization, organic matter application, and soil and water conservation to enhance land suitability. The most suitable areas for cardamom cultivation include shrubland, rice fields, open land, and mixed dryland farming. Economic analysis revealed a favorable B/C ratio of 1.11, signifying profitability. This study highlights the considerable potential for cardamom cultivation in Topos District, provided that sustainable land management practices are implemented. The findings underscore the crop’s economic viability, offering valuable insights for policymakers and farmers seeking to optimize land use while fostering economic growth and reducing environmental impact.  
The Potential for Cultivating Nutmeg (Myristica fragrans Houtt) in Rimbo Pengadang and Topos Districts of Lebong Regency Nabella, Reni; Hindarto, Kanang Setyo; Barchia, Muhammad Faiz; Widiyono, Heru; Supanjani
TERRA : Journal of Land Restoration Vol. 7 No. 1 (2024)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/terra.7.1.23-32

Abstract

The research, conducted from January to September 2023, aimed to map land suitability classes for nutmeg plant development. The evaluation results are presented descriptively and involve three main stages: pre-survey, field survey, and tabulation with data analysis. Primary data collected for this research include soil analysis results from the laboratory, complemented by secondary data. The determination of land suitability utilizes matching techniques for each land characteristic. The actual land suitability results for nutmeg in Rimbo Pengadang and Topos Districts are categorized as follows: S3eh (37.77%) 14,460.93 ha, with the limiting factor being erosion hazard. S3na eh (37.07%), 14,175.10 ha, with limiting factors related to nutrient availability and erosion hazards, S3na (6.77%): 2,592.64 ha, with limiting factors in nutrient availability, S2wa nr na eh (5.34%): 2,044.04 ha, facing limitations in water availability, nutrient retention, nutrient availability, and erosion hazard, S3rc eh (1.30%) 499.43 ha, with a limiting factor for rooting media and erosion hazard, S3rc (0.90%): 346.35 ha, with a limiting factor in rooting media and N (not suitable) (9.10%) 3,484.74 ha. Regarding potential land suitability, the classes are as follows: S1 (44.89%) 17,186.07 ha, S2 (43.80%) 16,767.80 ha, S3rc (2.21%) 845.79 ha, and S3 (9.10%): 3,484.74 ha. The areas with potential for developing nutmeg plants in Rimbo Pengadang and Topos Districts, Lebong Regency, include secondary forest, mixed dry land farming, open land, and bushes.    
Decomposition of Oil Palm Empty Fruit Bunches of Various Sizes Treated With Excelzyme Habibullah, Fakhrul; Prawito, Priyono; Hasanudin; Widiyono, Heru; Purwanti, Sri
TERRA : Journal of Land Restoration Vol. 8 No. 1 (2025)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/terra.8.1.30-36

Abstract

The rapid expansion of the palm oil industry has led to an increased accumulation of Oil Palm Empty Fruit Bunches (OPEFBs), creating significant environmental challenges due to their slow decomposition rate and high lignin content. This study investigates the decomposition of OPEFBs of varying sizes treated with Excelzyme, a commercial enzyme formulation designed to enhance lignocellulosic biomass degradation. The research was conducted using a 2 factor Completely Randomized Design (CRD), with Excelzyme dosages (250 mL, 375 mL, and 500 mL) and OPEFB sizes (unchopped, 2-5 cm, 1-2 cm, and <0.5 cm) as treatment factors. The decomposition process was evaluated based on temperature fluctuations, pH, total nitrogen, organic carbon, and lignocellulosic composition (hemicellulose, cellulose, and lignin) over an 8-week period. Results indicated that Excelzyme significantly influenced organic carbon reduction, hemicellulose degradation, and lignin breakdown, with higher dosages accelerating the decomposition process. The size of OPEFBs also played a crucial role, as smaller particle sizes facilitated microbial and enzymatic activity, leading to more efficient decomposition. Statistical analysis revealed significant interactions between enzyme dosage and OPEFB size, with the combination of 500 mL Excelzyme and <0.5 cm OPEFBs showing the highest decomposition rate. Temperature monitoring indicated a peak around week 5, suggesting optimal microbial activity and enzymatic breakdown at this stage. These findings highlight the potential of Excelzyme treatment in optimizing OPEFB decomposition, offering a sustainable approach to managing palm oil industry waste. The study contributes to improved biotechnological strategies for waste management and resource utilization, paving the way for enhanced agricultural sustainability and environmental conservation.
Evaluation of Selected Soil Physical Properties in Oil Palm, Rubber, and Forest Land in Mukomuko Regency Nurwanto, Ahmad; Hermawan, Bandi; Widiyono, Heru; Sulistyo, Bambang; Hindarto, Kanang Setyo
TERRA : Journal of Land Restoration Vol. 8 No. 1 (2025)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/terra.8.1.20-29

Abstract

This study investigates the influence of land use on soil physical properties and horizon thickness in Mukomuko Regency, Indonesia, to assess the impacts of agricultural practices on soil quality. Conducted between February and April 2020, the research utilized a nested design across four districts, with laboratory analyses performed at the Soil Science Laboratory, Bengkulu University. Land use types evaluated included oil palm, rubber, and natural forest. Variables measured comprised soil structure, horizon thickness, aggregate stability, bulk density (BD), texture, and organic carbon (C-organic). Statistical analysis (ANOVA, p < 0.05) revealed significant effects of land use on BD, C organic content, and soil texture, whereas aggregate stability was not significantly influenced by vegetation type or depth. Forest soils exhibited the highest C-organic content (5.78%) and lowest BD (0.82 g cm⁻³), contrasting with oil palm soils, which had the lowest C-organic content (4.22%) and highest BD (0.86 g cm⁻³). Texture analysis showed forest soils had higher sand (19.69%) and clay (50.20%) fractions, while rubber land had the highest silt content (57.59%). Soil physical properties generally declined with depth under rubber and oil palm but fluctuated in forest soils. These results suggest that vegetation type significantly affects soil quality, with forest ecosystems maintaining superior soil conditions compared to intensively managed agricultural systems. Adoption of sustainable land management practices is essential to mitigate soil degradation and enhance long-term productivity. 
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.
Co-Authors Askhari, Muhammad Yudha Bambang Gonggo Murcitro Bambang Sulistyo Bandi Hermawan Barchia, M Faiz Barchia, M. Faiz Dwipa, Eliza Rahma Habibullah, Fakhrul Hasanudin Herman, Welly Hindarto, Kanang Setyo Kuswara, Dio Afrizal Masdar Muhammad Faiz Barchia, Muhammad Faiz Nabella, Reni Nurwanto, Ahmad Padang, Agri Andi Saputra Prawito, Priyono Putri, Elsa Lolita Putri, Masmoni Ade Reny Herawati Simanihuruk, Bilman W. Sri Purwanti Supanjani Umi Salamah Utami, Kartika Zainal Muktamar