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All Journal Agroekotek View Jurnal Pengabdian Inovasi dan Teknologi Kepada Masyarakat Acta Solum JIM ( Journal International Multidiciplinary) Dinamika Pertanian
Ahmad Kurnain
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Marshall Performance Analysis Of Eggshells And Cement As Filler In Asphalt Concrete Mixtures (AC - WC) Tisnawan, Rahmat; Rizki Ramadhan Husaini; Ahmad Kurnain; Rendi Saputra
JIM - Journal International Multidisciplinary Vol. 2 No. 1 (2024)
Publisher : Rumah Jurnal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58794/jim.v2i1.633

Abstract

Roads are transportation infrastructure whose needs in Indonesia continue to increase, along with the increasing number of vehicles. Road construction is a construction that receives traffic loads, therefore it is expected that a road pavement layer must have a strong pavement construction and be able to receive loads from traffic users. AC-WC (Black-top Concrete - Wearing Course) asphalt layer is a road pavement construction consisting of asphalt composition, coarse aggregate, fine aggregate and filler. Fillers in asphalt mixtures function to increase the binding power of AC-WC asphalt, so as to improve mixture stability and fillers can fill the voids between aggregate particles, filler commonly used is stone ash. This research will be conducted with the addition of broiler eggshell filler and porland cement in the Asphalt Concrete wearing Course (AC-WC) mixture. The research was conducted with an experimental method conducted in the Civil Engineering laboratory of Abdurrab University. The specification used in this study is Public Road Revision 2 Year 2018, The optimum asphalt content (KAO) used was 6.5%. Based on the results of the study, the largest marshall stability and melting value is found in the 100% cement filler variation, which is 1772.7 Kg and the value of flow value (melting) 3.77 mm while the largest marshall quotient (MQ) value is found in the 25% eggshell filler variation, 75% cement, which is 529.2 Kg/mm.
Kemasaman Tanah, C-Mikroorganisme dan Pertumbuhan Bawang Daun di Lahan Gambut Berdasarkan Perbedaan Jarak Dari Saluran Air: Soil Acidity, C-Microorganisms and Spring Onion Growth in Peatlands Based on Different Distances from Waterways Muhammad Daud Maulidi; Ahmad Kurnain; Abdul Hadi
Acta Solum Vol. 3 No. 2 (2025): Maret 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.v3i2.2636

Abstract

This research aims to determine differences in soil acidity, C-microorganisms and the growth of spring onion (Allium fistulosum L.) on peatlands based on the difference in distance from waterways. The study will be conducted from February 2022 to May 2022. The implementation of the research is located in the Greenhouse and in the Laboratory of Physical Chemistry and Biology, Department of Soil Science, Faculty of Agriculture, Lambung Mangkurat University, Banjarbaru. This research method is quantitative research with a survey approach using exploratory descriptive methods. The data analysis used was by paired T-Test analysis to find out the differences in parameters observed over a period of five days. The result of this study was that there was a difference in soil acidity and growth of spring onion plants, while C-microorganisms was not.
Hubungan Ketersediaan Fosfor dan Kelarutan Fe pada Tanah Sawah Sulfat Masam Muhammad Khalqi Alwi; Fakhrur Razie; Ahmad Kurnain
Acta Solum Vol. 1 No. 2 (2023): Maret 2023
Publisher : Department of Soil, Faculty of Agriculture, Lambung Mangkurat University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/actasolum.v1i2.1839

Abstract

One of the prospective places for agricultural usage in acid sulfate rice fields, which are typically spread out in lowland areas along coastlines that occasionally undergo flooding. If handled effectively in accordance with the issues found in the land, this site can be developed as a productive agricultural region. Agricultural development on acid sulfate soils frequently encounters a number of issues, including (pH) acidic soil, high iron content, a lack of phosphate availability, and the presence of pyrite (FeS2). In this study, the relationship between P availability, Fe solubility, the Fe-P fraction, pH, Eh, and pyrite depth in acid sulfate paddy fields will be examined. Purposive sampling was used in field research utilizing the survey method in the acid sulphate rice fields of Barito Kuala Regency. This research was based on the distribution map of Fe solubility in Barito Kuala Regency. The results of this study indicate that there are three variables that have a significant effect on P availability: soluble Fe amd Fe-P fraction with the power regression form and a very strong relationship; and soil pH with a linear regression form and a strong relationship. Pyrite depth and soil Eh had no significant relationship with P availability in acid-sulfate lowland rice fields.
Pengaruh Penerapan Minipolder terhadap Stok Karbon Organik Lahan Basah di Kawasan Food Estate Kabupaten Banjar, Kalimantan Selatan: Impact of Minipolder System on Soil Organic Carbon Stocks in Wetlands of the Food Estate Area, Banjar Regency, South Kalimantan Romadhan, Panji; Ahmad Kurnain; Zuraida Titin Mariana; Muhammad Mahbub; Ismed Fachruzi; Shodiq, Muhammad Syaiful
DINAMIKA PERTANIAN Vol. 42 No. 2 (2026): Jurnal Dinamika Pertanian Agustus 2026
Publisher : UIR Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/dp.2026.vol42(2).28123

Abstract

Background: Swamps are ecologically important ecosystems in the biogeochemical cycle and are one of the targets of land conversion for food estate development. Objective: This study aims to examine the impact of the minipolder system on soil organic carbon (SOC) stocks in the Food Estate area of Sambang Lihumm Banjar Regency, South Kalimantan. Methods: Soil sampling was conducted using a purposive sampling method in natural swamp (control) and tukungan plots (maize cultivation). The soil samples consisting of intact and disturbed were collected, with parameters analyzed including soil moisture content (gravimetric method), bulk density (gravimetric method), and %C-organic (Walkley and Black method). Results: The result of study showed that conversion of swamp to dry land agriculture reduced soil moisture content, while bulk density increased from 0.78 gram/cm3 to 1.19 gram/cm3. Furthermore, SCO stocks averaged 35.00 ton/ha in natural swamp and 37.73 ton/ha in tukungan. Conclusions: The conclusion of study is that the increased bulk density and accumulation of topsoil in tukungan contributed to higher soil organic carbon (SOC) stocks.
Co-Authors Abdul Hadi Akhmad Rizalli Saidy Anggi Dwi Oktania Edy Prastya Fachry Abda El Rahman Fakhrur Razie Fakhrur Razie Gusti Muhammad Sugian Noor Husaini, Rizki Ramadhan Ira Marsary Ismed Fachruzi Muhammad Daud Maulidi Muhammad Hanif Ahda Muhammad Khalqi Alwi Muhammad Mahbub Muhammad Syaiful Shodiq Muhammad Toyeb Puspa Ningrum Rahmat Tisnawan Ratna Ratna Rendi Saputra Rohaniah Rohaniah Romadhan, Panji Salivian Kumara Ahmad Zuraida Titin Mariana