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All Journal JTSL (Jurnal Tanah dan Sumberdaya Lahan) Jurnal Ilmiah Universitas Batanghari Jambi Bulletin of Community Engagement Analit: Analytical and Environmental Chemistry
Asmadi Saad
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Religion Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Economics, Econometrics & Finance Education Environmental Science Law, Crime, Criminology & Criminal Justice Social Sciences Other

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EFFECTS OF INITIAL SOIL CARBON AND METAL CONTENTS ON SORPTION OF DISSOLVED ORGANIC CARBON ON THE SOILS OF TROPICAL RAIN FOREST TRANSFORMATION SYSTEMS Ngatijo Ngatijo; Damris Muhammad; Asmadi Saad; Abu Bakar; Wanda Hamidah
Analit: Analytical and Environmental Chemistry Vol 6, No 1 (2021): Analit: Analytical and Environmental Chemistry
Publisher : Universitas Lampung Jl. Prof. Dr. Sumatri Brojonegoro No.1 Bandar Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (438.12 KB) | DOI: 10.23960/aec.v6i1.2021.p12-21

Abstract

Karbon organik terlarut (DOC) dalam tanah memainkan peran penting dalam distribusi nutrisi dan konsentrasinya dapat dipengaruhi oleh keberadaan partikel mineral tanah. Kandungan karbon tanah awal dapat mengurangi kapasitas tanah untuk menyerap DOC karena adanya tolakan muatan negatif. Penelitian ini mengkaji pengaruh kandungan karbon dan logam tanah awal terhadapa dsorpsi DOC yang  ditambahkan pada tanah hutan tropis melalui percobaan batch. Kandungan logam berat tanah (Al dan Fe), total karbon organik dan kandungan DOC tanah ditentukan. Untuk menentukan apakah dan bagaimana variasi kandungan karbon tanah mempengaruhi adsorpsi DOC, maka dua tanah dengan kandungan logam dan karbon yang berbeda (tanah permukaan dan bawah permukaan) dari dua sistem transformasi (hutan tropis sekunder dataran rendah dan perkebunan sawit masyarakat digunakan. Karbon organik terlarut diekstraksi dari permukaan tanah yang kaya organik dengan air dan dipekatkan ketingkat yang diperlukan dan digunakan dalam percobaan batch. Karbon organik terlarut berkorelasi negatif dengan kandungan logam tanah terutama pada sub permukaan tanah. Dengan kandungan organik karbon tinggi korelasinya tidak signifikan. Ini mungkin menjelaskan adanya tolakan DOC yang membawa perubahan negatif oleh partikel tanah kaya organik.http://dx.doi.org/10.23960/aec.v6.i1.2021.p12-21 
Analisis Stakeholder dalam Pengendalian Kebakaran Hutan dan Lahan di Kabupaten Batang Hari Provinsi Jambi Rinaldi Rinaldi; Asmadi Saad; Marwoto Marwoto
Jurnal Ilmiah Universitas Batanghari Jambi Vol 23, No 3 (2023): Oktober
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jiubj.v23i3.4603

Abstract

Land and forest fire management including aspect; prevention, countermeasures, and handling post forest and land fire. All stakeholders have respective roles in each aspect and expected can contribute and collaborate so that efforts to control fire forests and land in the Batang Hari District can be done effectively and efficiently. There are 31 (thirty-one) stakeholders involved in the land and forest fire management in the Batang Hari District, such as the Technical Implementation Unit of the Ministry of Environment and Forestry, Government of Jambi Province, Government district of Batang Hari, Communities, Plantation and Forestry Entrepreneurs, Social Community Institutions, and Universities. Out of 31 (thirty-one) stakeholders, there are 14 (fourteen) stakeholders enter the category Keyplayer, there are 7 (seven) stakeholders have a role as Subject, 3 (three) stakeholders have a role as Context Setter, and 7 (seven) stakeholders play a role as Crowd.
EVALUASI STATUS KESUBURAN TANAH DI MASA REPLANTING PERKEBUNAN KELAPA SAWIT PADA TANAH MINERAL PROVINSI JAMBI Ferry, M; Asmadi Saad; Yulfita Farni
Jurnal Tanah dan Sumberdaya Lahan Vol. 11 No. 1 (2024)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtsl.2024.011.1.3

Abstract

Appropriate fertilization recommendations are needed to maximize the production of oil palm plants on land that has been used for a long time. This study aimed to determine the status of soil fertility during the oil palm replanting period in Kemang Manis Village, Muara Papalik Sub-district, West Tanjung Jabung Regency, and determine fertilization recommendations according to the needs of oil palm plants based on soil fertility. This study used a survey method; soil samples taken were disturbed soil samples, and sampling was carried out at two depths, namely 0-30 cm and 30-60 cm. Determination of sampling points using stratified random sampling method based on homogeneous land units that were processed based on soil type and slope in the research location. The collected soil samples were analyzed for H, CEC, BS, organic C, P2O5, K2O, and total N. The results showed low fertility status during the oil palm replanting period in the research location. Observations of the soil profile also showed that the O horizon was thin. Fertilization recommendations that must be made to improve soil fertility include adding dolomite fertilizer to increase soil pH value and increasing the availability of N, P, and K elements in the form of Urea, SP36, and KCl. To increase the content of organic materials in the soil, applying oil palm empty fruit bunches can also improve the soil's physical, chemical, and biological properties.
Kajian Erosi Andisol Dibawah Vegetasi Tanaman Kopi, Campuran Kopi dan Kayu Manis, Kayu Manis Serta Hutan di Desa Nilau Dingin Hasriati Nasution; Yusfaneti; Asmadi Saad
Bulletin of Community Engagement Vol. 4 No. 2 (2024): Bulletin of Community Engagement
Publisher : CV. Creative Tugu Pena

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51278/bce.v4i2.1571

Abstract

The purpose of the study was to determine the erosion that occurs under coffee, cinnamon, a mixture of cinnamon and coffee and Andisol forest soil. Soil analysis was carried out at the Soil Physics and Chemistry Laboratory, Faculty of Agriculture, University of Jambi. Soil erosion Soil sampling for determining soil erosion in coffee soil, organic matter content, volume weight, total pore space and soil permeability was carried out by survey using the Proportional Random Sampling method in areas planted with coffee vegetation, a mixture of coffee and cinnamon, cinnamon and forest vegetation on a slope of 8% - 15%. The parameters observed were soil organic matter content, permeability, soil volume weight, total pore space, soil erodibility and soil erosion, soil texture. Each treatment was repeated 15 times. To distinguish the physical properties of Andisol under cinnamon, coffee, cinnamon mixed with coffee and forest soil. conducted using the Unpaired Mean Value Test at the 5% level (Steel and Torrie, 1995). From the results of the Unpaired Mean Value Test, it was found that under coffee vegetation and a mixture of coffee and cinnamon, the soil organic matter, permeability, volume weight, total pore space, erodibility and soil erosion were the same, but significantly different from the soil under cinnamon vegetation and forest. Under cinnamon vegetation and forest, there was no significant difference in the parameters of organic matter content, volume weight, total pore space, erodibility and soil erosion and only differed in soil permeability. The conclusion is that soil erosion in coffee vegetation and a mixture of coffee and cinnamon is the same erosion. However, it is different from cinnamon vegetation and forest.  
EVALUASI STATUS KESUBURAN TANAH DI MASA REPLANTING PERKEBUNAN KELAPA SAWIT PADA TANAH MINERAL PROVINSI JAMBI Ferry, M; Asmadi Saad; Yulfita Farni
Jurnal Tanah dan Sumberdaya Lahan Vol. 11 No. 1 (2024)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtsl.2024.011.1.3

Abstract

Appropriate fertilization recommendations are needed to maximize the production of oil palm plants on land that has been used for a long time. This study aimed to determine the status of soil fertility during the oil palm replanting period in Kemang Manis Village, Muara Papalik Sub-district, West Tanjung Jabung Regency, and determine fertilization recommendations according to the needs of oil palm plants based on soil fertility. This study used a survey method; soil samples taken were disturbed soil samples, and sampling was carried out at two depths, namely 0-30 cm and 30-60 cm. Determination of sampling points using stratified random sampling method based on homogeneous land units that were processed based on soil type and slope in the research location. The collected soil samples were analyzed for H, CEC, BS, organic C, P2O5, K2O, and total N. The results showed low fertility status during the oil palm replanting period in the research location. Observations of the soil profile also showed that the O horizon was thin. Fertilization recommendations that must be made to improve soil fertility include adding dolomite fertilizer to increase soil pH value and increasing the availability of N, P, and K elements in the form of Urea, SP36, and KCl. To increase the content of organic materials in the soil, applying oil palm empty fruit bunches can also improve the soil's physical, chemical, and biological properties.
Co-Authors Abu Bakar Damris Muhammad Damris Muhammad Ferry, M Hasriati Nasution Marwoto Marwoto Ngatijo Ngatijo Rinaldi Rinaldi Wanda Hamidah Yulfita Farni Yusfaneti