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Ermadani Ermadani
Study Program of Agroecotechnology, Faculty of Agriculture, University of Jambi Kampus Pinang Masak, Jalan Raya Jambi-Muaro Bulian Km 15 Mendalo Darat Jambi, Indonesia
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DYNAMICS OF SOIL ORGANIC CARBON FRACTIONS UNDER DIFFERENT LAND MANAGEMENT IN WET TROPICAL AREAS Ermadani Ermadani; Hermansah Hermansah; Yulnafatmawita Yulnafatmawita; Auzar Syarif
Jurnal Solum Vol 15, No 1 (2018): JURNAL SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (538.964 KB) | DOI: 10.25077/jsolum.15.1.26-39.2018

Abstract

Karbon (C) organik tanah yang merupakan bagian utama dari bahan organik tanah mengalami penurunan sebagai akibat perubahan-perubahan penggunaan lahan dari kondisi alami menjadi lahan-lahan pertanian. Penurunan C organik tanah menjadi semakin besar karena masukan bahan organik yang rendah dan bila penurunan ini. berlangsung terus menerus  maka pada akhirnya menyebabkan degradasi tanah. Artikel ini membahas peranan, dekomposisi dan struktur dari bahan organik tanah dalam hubungannya dengan dinamika fraksi C organik tanah pada pengelolaan lahan yang berbeda di daerah tropis basah. Perubahan penggunaan dan pengelolaan lahan menyebabkan terjadinya perubahan C organik total dan fraksi-fraksi C organik labil dan stabil tanah. Beberapa penelitian telah menunjukkan bahwa fraksi C organik labil seperti C organik partikulat lebih responsif terhadap perubahan-perubahan dari pengelolaan tanah dan merupakan suatu indikator yang sensitif dari kualitas tanah. Disamping itu fraksi C organik stabil seperti asam humat yang mengalami perubahan karena praktek-praktek  pengelolaan tanah dapat digunakan untuk menilai kapasitas potensial tanah sebagai penyimpan karbon. Perubahan-perubahan penggunaan lahan dan pengelolaan tanah mempunyai pengaruh negatif dan positif terhadap C organik total, fraksi C organik labil (C organik partikulat) dan fraksi C organik stabil (asam humat). Praktek-praktek pengelolaan yang dapat mempertahankan dan memperbaiki fraksi-fraksi C organik tanah  meliputi sistem agroforestri,  aplikasi pupuk organik, mulsa dan pengembalian sisa tanaman ke dalam tanah. Fraksi C organik partikulat dan asam humat menunjukkan perubahan-perubahan yang lebih besar dibandingkan C organik total akibat perubahan-perubahan penggunaan lahan dan praktek-praktek pengelolaan tanah di daerah tropis basah.Key words : Fraksi C organik, penggunaan lahan, tropis basah
PENGARUH APLIKASI BIOCHAR DAN PUPUK FOSFAT TERHADAP PERTUMBUHAN DAN HASIL KEDELAI (Glycine max (L.) Merril) DI TANAH ULTISOL Adni Mahdhar; Ermadani Ermadani; Aryunis Aryunis
Jurnal Solum Vol 18, No 2 (2021)
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (191.545 KB) | DOI: 10.25077/jsolum.18.2.45-65.2021

Abstract

Rice waste has the potential to be used as a biochar raw material which can be used to overcome constraints on Ultisol soils. This study aims to determine the effect of the application of biochar from rice straw and phosphate fertilizers which give growth and yield of soybeans in Ultisols soil. The experimental design used was a randomized block design with a factorial pattern consisting of 2 factors and 3 replications, the first factor was the input of biochar (B) at a dose of 15 tonnes ha-1consisting of: b0 = no biochar, b1 = rice husk biochar 15 ton ha-1, b2 = rice straw biochar 15 ton ha-1, b3 = husk and rice straw biochar 15 ton ha-1. The second factor is the dosage of phosphate fertilizer (P) consisting of: p0 = without phosphate fertilizer, p1 = 60 kg ha-1 TSP (50% of recommendation), p2 = 120 kg ha-1 TSP (100% of recommendation). The results showed that there was no interaction between biochar and phosphate fertilizer applications on plant height, number of flowers per plant, number of productive branches per plant, percentage of fruit set per plant and crop index of soybean. However, the application of phosphate fertilizers significantly increased the number of flowers. There is an interaction between the application of biochar and phosphate fertilizers on leaf area, number of pods per plant, number of pods contained per plant, dry weight of biomass per plant, dry weight of seeds per plant, yield per hectare, net assimilation rate and uptake of plant phosphorus. Application of rice straw biochar with a dose of 15 tonnes ha-1 and a dose of phosphate fertilizer 60 kg ha-1 increased leaf area 36.74%, number of pods per plant 39.96%, number of filled pods per plant 47.61%, dry weight of biomass per plant 46.82%, seed dry weight per plant 52.65%, yield per hectare 54.68%, net assimilation rate 182.38% and plant phosphorus uptake 72.32%.Key words: biochar, P-fertilizer, rice husk, straw, soya, Ultisols
Evaluasi Ruang Henti Khusus (RHK) Sepeda Motor Pada Simpang Tiga di Kota Jambi Sahera Sahera; Ermadani Ermadani; Fetty Febriasti Bahar
Jurnal Talenta Sipil Vol 5, No 1 (2022): Februari
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/talentasipil.v5i1.89

Abstract

Ruang henti khusus (RHK) sepeda motor ialah ruangan yang disediakan pada ujung mulut persimpangan hanya dikhususkan untuk sepeda motor pada saat lampu merah menyala. Di Kota Jambi hampir di setiap persimpangan telah diterapkan Ruang Henti Khusus (RHK) sepeda motor. Menurut pandangan dari masyarakat Kota Jambi RHK di persimpangan tersebut masih belum bisa digunakan sesuai fungsinya dikarenakan masih ada masyarakat yang tidak mengetahui apa fungsi dari RHK tersebut. Untuk meninjau hal tersebut penulis melakukan penelitian evaluasi penerapan RHK pada persimpangan bersinyal Simpang Tiga di Kota Jambi. Berdasarkan Hasil Penelitian Untuk dapat diketahui bahwa presentase tingkat keterisian RHK persimpangan simpang 3 Kota Jambi dari 13 simpang yang memiliki 36 pendekat yang memiliki RHK hanya beberapa simpang yang dikatakan berhasil dengan persentase ≥80% yaitu ada 8 pendekat simpang, yang dikatakan cukup berhasil dengan persentase 60%-79% ada 12 pendekat simpang, sedangkan yang tergolong kurang berhasil diterapkan dengan persentase <60% ada 13 pendekat simpang yang ada di Kota Jambi. Untuk penempatan RHK dilihat dari kondisi lalu lintas ada di persimpangan simpang 3 di Kota Jambi ada 9 simpang dengan 14 pendekat yang sesuai dengan persyaratan geometrik persimpangan dan ada 13 simpang dengan 29 pendekat yang memenuhi persyaratan kondisi lalu lintas sesuai dengan pedoman RHK 2015.
Pengaruh Pemberdayaan Masyarakat Terhadap Kualitas Lingkungan Di Sekitar Areal Hutan Tanaman Industri Ripil Hadi; Rosyani Rosyani; Ermadani Ermandani
Jurnal Pembangunan Berkelanjutan Vol. 5 No. 1 (2022): Jurnal Pembangunan Berkelanjutan
Publisher : Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jpb.v5i1.18625

Abstract

The high number of forest and land fires that occur every year can damage the quality of the environment. Serious and continuous efforts are needed to reduce, prevent and control forest and land fires that occur. It is important to do this so that the number of forest and peatland fires caused by humans can be suppressed. One of the efforts that can be done is through community empowerment programs. This study aims to analyze the business and the role and influence of community empowerment on the quality of the environment around the PT Wirakarya Sakti Industrial Plantation Forest Area. This study uses a mixed method approach by combining quantitative research and qualitative research. Based on the results of data analysis, it is known that the environmental quality, including the air quality index, is in the good category (IKU=32,4), the water quality index is good (IKA=0.989) and the soil quality index is in the bad category (IKT=33,5). In addition, it is known that the level of community understanding of forest and peatland knowledge is in the medium category (65.3%), community understanding of forest and land fires is in the medium category (67.1%) and community understanding of community empowerment is in the high (78.2%). The results of the regression analysis prove that the significance value obtained is 0.389>0.05, meaning that community empowerment has no significant effect on environmental quality in the area around industrial plants.
PENGARUH PEMBERIAN LIMBAH CAIR PABRIK KELAPA SAWIT TERHADAP BEBERAPA SIFAT KIMIA TANAH DAN PERTUMBUHAN BIBIT KELAPA SAWIT PADA PEMBIBITAN UTAMA: The Influence of Liquid Oil Palm Factory Waste on Some Soil Chemical Properties and Growth of Oil Palm Seeds on Main Breeding Restu Ramadhan; Gindo Tampubolon; Ermadani Ermadani
Jurnal Silva Tropika Vol. 5 No. 1 (2021): Jurnal Silva Tropika
Publisher : Fakultas Kehutanan Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jsilvtrop.v5i1.12429

Abstract

This research was carried out with the aim of examining the effect of providing palm oil mill effluent (LCPKS) on several soil chemical properties (pH, C-organic, and CEC) and the growth of oil palm seedlings in the main nursery. The research was conducted for 5 months, starting from March 6, 2020 to August 15, 2020 in the main nursery area for oil palm plantation companies, Belanti Jaya Village, Mersam District, Batanghari Regency, Jambi Province. The research was conducted using a Complete Acaka Design (CRD) based on the age and height of the oil palm seedlings that were uniform. The treatments used were based on the POME dosage, namely 0 L, 4 L, 5 L, 6.6 L, 10 L, and 20 L POME given every week for 20 months. Each treatment was repeated 4 times so that 24 experimental units were obtained and each unit consisted of 4 oil palm seeds so that the total number of seeds used in the study was 96 oil palm seeds. In the maintenance of seedlings, inorganic fertilizers were also given using compound fertilizers, namely NPKMg 15: 15: 16: 4, NPKMg 12: 12: 17: 2, and kiserit. The results showed that POME could increase pH from acidic to slightly acidic to neutral, C-organic from very low to moderate to very high conditions, but it could not increase soil CEC. The highest increase in pH and C-organic occurred in the 20 liter POME treatment. The provision of POME was able to increase height increase, increase in stem diameter, increase in the number of leaves, shoot dry weight, dry weight of the roots of the roots, and be able to provide an index of seed strength so that the seeds were able to be transferred to the field with seedlings of 9 months. The highest increase in oil palm seedling growth occurred in the 4 liter POME treatment.
Evaluasi Status Hara Kalium dan Kapasitas Tukar Ultisol Pada Perkebunan Kelapa Sawit Abdul Muhlisin; Ermadani Ermadani; Asmadi Sa'ad
Jurnal Agroecotania : Publikasi Nasional Ilmu Budidaya Pertanian Vol. 5 No. 1 (2022): Jurnal Agroecotania: Publikasi Nasional Ilmu Budidaya Pertanian
Publisher : Jambi University, Fakultas Pertanian, Program Studi Agroekoteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/agroecotania.v5i1.22826

Abstract

Penelitian ini bertujuan untuk mengevaluasi status hara K dan KTK Ultisol pada perkebunan kelapa sawit tahun tanam 2002 dan tahun tanam 2009 serta hutan sekunder. Penelitian ini dilaksanakan dilahan perkebunan kelapa sawit milik PT. Sungai Bahar Pasifik Utama Estate Pijoan, Kabupaten Muaro Jambi, Provinsi Jambi. Pembuatan plot utama dilakukan dengan cara mengambil garis transek berukuran 100 m x 20 m. Kemudian membuat sub-plot berukuran 20 m x 20 m dengan jarak antar sub-plot 5 m. Sampel tanah diambil pada kedalaman 0-15 cm dan 15-30 cm pada setiap penggunaan lahan. Hasil penelitian menunjukkan bahwa penggunaan lahan yang berbeda menunjukkan perbedaan kandungan K-dd dan KTK tanah dimana tanah pada perkebunan kelapa sawit tahun tanam 2009 mempunyai kandungan K dan KTK yang lebih tinggi dibandingkan dengan hutan sekunder. Kandungan K-dd dan KTK cenderung menurun dengan semakin dalamnya tanah.
X-Ray Fluorescence Monitoring Metal Content and Nutrient Elements for Predicting Soil Fertility Parameters Based on pH in Ultisol Soil Samsidar, Samsidar; Maison, Maison; Ermadani, Ermadani; Latief, Madyawati; Pebralia, Jesi; Riany, Hesti; Amanda, Dwi Rahma; Maulana, Lucky Zaehir
International Journal of Hydrological and Environmental for Sustainability Vol. 2 No. 3 (2023): International Journal of Hydrological and Environmental for Sustainability
Publisher : CV FOUNDAE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/ijhes.v2i3.290

Abstract

Soil fertility parameters, including macronutrients, micronutrients, and metal content, are very important for optimizing agricultural and plantation land management. Ultisol is a type of soil that is commonly used as a planting medium for oil palm plantations, rubber, and various types of vegetables. Continuous land use causes variations in nutrient and metal content. This change is also caused by the fertilization process and the characteristics of the plants grown in the area. In this study, an analysis of soil fertility parameters (macronutrients, micronutrients, and metal content) was analyzed using X-Ray Fluorescence (XRF) on Ultisol soil taken from Muara Jambi Regency, Indonesia. This analysis was conducted across land-use areas (Palm, Rubber, Vegetables, and Forest). Subsequently, the obtained measurements were used to model correlations with soil pH values to predict soil fertility parameters. The quantitative results showed that the metal content values were reasonably consistent across all locations regarding metal types and their percentage concentrations. However, locations 1 (T1) and 2 (T2) have higher aluminum (Al) content than locations 3 and 4 and lower magnesium (Mg) content. The modeling, when correlated with pH values, indicated that metal elements correlated 0.938, macronutrients 0.934, and micronutrients 0.767. From these correlations, it can be qualitatively inferred that there is a strong relationship between pH and the presence of metal content, macronutrients, and micronutrients. In the future, this can serve as a model for estimating the presence of soil fertility parameters.
Analisis Daya Dukung Air dan Dampak Penggunaan Lahan Terhadap Indeks Proteksi di Kawasan Danau Sipin Adifa, Fitri; Ermadani, Ermadani; Zuhdi, Mohd.
Jurnal Pembangunan Berkelanjutan Vol. 7 No. 1 (2024): Jurnal Pembangunan Berkelanjutan
Publisher : Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jpb.v7i1.35258

Abstract

Penduduk Kota Jambi terus mengalami peningkatan sebesar 10,3% dari tahun 2013 hingga 2023. Peningkatan jumlah penduduk tersebut membutuhkan air yang semakin banyak pula. Namun, bertambahnya jumlah penduduk menyebabkan semakin sedikit daerah resapan air karena alih fungsi lahan. Perubahan penggunaan lahan yang tidak sesuai dengan fungsi dan peruntukkannya akan memberikan tekanan terhadap ekosistem sumber daya alam yang ada. Pentingnya mengetahui daya dukung air pada permukiman di kawasan Danau Sipin agar dapat mengurangi dampak dari alih fungsi lahan yang akan terjadi seperti berkurangnya Ruang Terbuka Hijau (RTH). Oleh karena itu, daya dukung air perlu menjadi perhatian banyak pihak untuk diteliti. Penelitian ini bertujuan menganalisis daya dukung air dan dampak penggunaan lahan terhadap indeks kawasan perlindungan lingkungan hidup dan menganalisis ketersediaan RTH di daerah penelitian. Metode analisis menggunakan metode kuantitatif. Hasil analisis daya dukung air di daerah penelitian didapat nilai 0,20 yang berarti status daya dukung airnya telah terlampaui atau defisit. Dampak alih fungsi lahan dilihat dari nilai indeks koefisien proteksi sebesar 0,31 yang berarti masuk kedalam klasifikasi tinggi dan implikasi pengembangan masuk kawasan resapan air dikendalikan secara ketat. RTH daerah penelitian belum memenuhi kebutuhan luasan RTH 30%, dimana, kebutuhan RTH yaitu 234,68 ha namun RTH yang tersedia hanya 183,02 ha. Daerah penelitian masih memiliki kekurangan RTH seluas 51,65 ha.
KAJIAN BEBERAPA KARAKTERISTIK TANAH GAMBUT PADA LAHAN TERBAKAR DAN TIDAK TERBAKAR DI PERKEBUNAN KELAPA SAWIT Virmanto, Dedy; Sa'ad, Asmadi; Arsyad, AR; Ermadani, Ermadani
Jurnal Solum Vol 19, No 2 (2022)
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jsolum.19.2.43-52.2022

Abstract

The excessive drainage system on peat causes the peat to dry out, especially during the dry season. This condition triggers the occurrence of extensive and intensive land fires, which causes changes in the characteristics of peat soils. This study aimed to study the characteristics of peat soil consisting of several physical and chemical properties of peat on burned and unburned land in oil palm plantations in Pematang Raman Village, Kumpeh District, Muaro Jambi Regency. The research was carried out using a survey method. Observation block area was determined by purposive sampling based on adjacent land conditions (burned and unburned). Observation points were set on a grid that was perpendicular to the canal with a horizontal distance of 200 m from 1000 m block length and a vertical distance of 50 m from 300 m block width with an area of each block + 30 ha. The time interval between the fire incident and sampling was 17 months. Soil samples were taken at a depth of 0-20 cm and 20-40 cm. The results showed that the physical and chemical properties of burnt and unburned peat showed differences in the level of maturity, physical and chemical properties of the soil. Burnt peat soil had a faster weathering rate as indicated by the dominance of the sapric maturity level in the top layer (0-20 cm) and below the surface (20-40 cm). The bulk density, ash content, and pH of the burned peat soil were higher, while the C-organic content, total N, C/N, and water content were lower.Keywords: burned; chemical and physical properties; peat soils
Training on Sustainable House Design Based on the Utilization of Natural Lighting in Nyogan Village Ermadani, Ermadani; Febriasti Bahar, Fetty; Suryadri, Hadistya; Galih Prabasari, Ira; Alfernando, Oki
Jurnal Karya Abdi Masyarakat Vol. 7 No. 1 (2023): Jurnal Karya Abdi Masyarakat
Publisher : LPPM Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jkam.v7i1.21162

Abstract

The development of housing has become a government focus, particularly with the introduction of subsidized housing. However, current residential construction often prioritizes financing and aesthetics, neglecting other critical aspects such as environmental conditions and climate factors, including natural lighting and air circulation. Limited public knowledge about these issues contributes to the lack of consideration for natural lighting in home construction. This aspect is vital for creating environmentally friendly homes, as utilizing sunlight can reduce electricity consumption, leading to cost efficiency and environmental sustainability. Therefore, training and outreach are necessary for the community in Nyogan Village, Mestong District, Muaro Jambi Regency, focusing on the use of natural lighting in eco-friendly home design. The existing conditions in Nyogan often result in power outages lasting up to two days, highlighting the need for natural lighting during the day and evening. The training involved local infrastructure officials, carpenters, and community members, providing them with pocket guides on eco-friendly home construction emphasizing natural light utilization. This community service activity has enhanced public knowledge about sustainable housing and increased interest in building environmentally friendly homes.
Co-Authors -, Maison Abdul Muhlisin adifa, Fitri Adni Mahdhar Alfernando, Oki Alrizal, Alrizal Amanda, Dwi Rahma Arsyad, AR Aryunis Aryunis Asmadi Sa'ad Auzar Syarif Fetty Febriasti Bahar Galih Prabasari, Ira Gindo Tampubolon Hasriati Nasution Hermansah Hermansah Irianto Irianto Lucky Zaehir Maulana Madyawati Latief Mulya, Anugrah Hadi Pebralia, Jesi Resta, Ichy Lucya Restu Ramadhan Riany, Hesti Ripil Hadi Rosyani Sa'ad, Asmadi Sahera Sahera Samsidar Samsidar Sinambela, Esther Leoni Suryadri, Hadistya Virmanto, Dedy Yoza Fendriani Yulnafatmawita Yulnafatmawita Zuhdi, Mohd.