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All Journal Jurnal Ecosolum Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) AbdiTechno (Jurnal Pengabdian Masyarakat)
Mahmud Achmad
Hasanuddin University
Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering

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POTENSI KETERSEDIAN AIR TANAH DAN NERACA AIR WILAYAH KARST DI KABUPATEN MAROS: Potential Availability of Groundwater and Water Balance of Karst Area in Maros Regency Muh Abbas; Burhanuddin Rasyid; Mahmud Achmad
Jurnal Ecosolum Vol. 11 No. 1 (2022): JUNI
Publisher : Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ecosolum.v11i1.21197

Abstract

Water balance calculations can describe water conditions in an area. Climatic conditions and soil characteristics will affect the water balance in an area, including the karst areas which is vulnerable to droughts. This study analyzes the capacity of the soil to store water and calculates the regional water balance. By using the Soil Moisture Equipment Corp at a pressure of 0.33 atm, the field capacity of the soil and a pressure of 15 atm will be known to obtain the permanent wilting point value. The regional water balance was calculated using the Thornthwaite-Mather method. Research conducted in the karst area of ​​Maros Regency shows that the available water pore value with very low criteria so that it affects the available water capacity. The water balance of the karst region shows a surplus in November-June and a deficit in July-October. The total value of surplus is 1296 mm/year and deficit is 370 mm/year.
Infiltration Model of Mediterranean Soil with Clay Texture Sitti Nur Faridah; Mahmud Achmad; Tisha Aditya Jamaluddin; Jusmira Jusmira
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 12, No 1 (2023): March 2023
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v12i1.162-173

Abstract

Infiltration plays an essential role in increasing the soil water content as a part of the hydrological cycle. Infiltration affects surface runoff and soil conservation. It also determines the sustainability of the groundwater system. Heavy rain intensity exceeding the infiltration capacity will result in surface runoff, and excessive surface runoff will cause soil erosion.  This study aims to investigate the suitable infiltration rate model in the Mediterranean soil of clay textured with various soil conditions. Infiltration rate measurement employed a double-ring infiltrometer in soil without and with tillage. The applied infiltration rate model was an empirical model and the function of time, which includes the Kostiakov, Horton, and Philip Models. The results demonstrated that the Mediterranean soil infiltration rate with a clay texture was 0.91 cm/min and was relatively higher in the soil without tillage. The suitable infiltration rate model to be applied in soil conditions without and with tillage is the Kostiakov Model f = 0.700 t-0.25  and f = 0.682 t-0.22, respectively. The Kostiakov model is the most suitable infiltration rate model in Mediterranean textured clay, without tillage conditions, with a determination value of 0.988 and a deviation value of 0.005. Keywords: Horton model, Philip model, Infiltrometer; Kostiakov model, Tillage
Pengenalan Dan Pembuatan Alat Penabur Pupuk Berbasis Pipa, Di Desa Kaluku Kecamatan Batang Kabupaten Jeneponto Nur Faizah; Muhammad Rizal; Iqbal Salim; Abdul Waris; Mursalim; Daniel Useng; Mahmud Achmad; Febriana Intan Permata Hati; Olly Sanny Hutabarat; Khaeril Anwar Junaedi
Abdi Techno Jurnal AbdiTechno, Vol. 5, Nomor 2, Juli 2025
Publisher : Departemen Teknologi Pertanian Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70124/abditechno.vi.1835

Abstract

Kuliah Kerja Nyata (KKN) adalah respons terhadap tuntutan zaman yang menekankan bahwa perguruan tinggi harus berperan lebih dari sekadar pusat pendidikan, tetapi juga sebagai agen perubahan dalam masyarakat. KKN menyediakan kesempatan bagi mahasiswa untuk mengaplikasikan ilmu dan keterampilan yang telah dipelajari selama di kampus ke dalam situasi nyata di masyarakat salah satunya di Desa Kaluku, Kecamatan Batang, Kabupaten Jeneponto, di mana sebagian besar penduduk bekerja sebagai petani karena desa tersebut memiliki lahan yang luas. Tanaman yang banyak dibudidayakan di daerah ini meliputi padi, jagung, kacang tanah, pisang, dan kacang hijau. Namun, para petani masih menggunakan teknik tradisional, khususnya dalam proses pemupukan, yang dilakukan secara manual menggunakan tangan. Metode ini memakan banyak waktu, tenaga, dan sumber daya manusia. Untuk menjawab tantangan tersebut, hadir inovasi lokal berupa alat penabur pupuk. Alat ini dirancang untuk mempermudah proses pemupukan dengan tingkat akurasi yang tinggi, sehingga nutrisi dapat tersebar merata ke seluruh tanaman. Selain menghemat waktu dan tenaga, alat ini juga mengurangi pemborosan pupuk dan berpotensi meningkatkan produktivitas hasil panen. Penggunaan teknologi ini memberikan solusi praktis bagi petani untuk menghadapi tantangan dalam sektor pertanian.
Penerapan Teknologi Tepat guna pada Budidaya dan Penanganan Pascapanen Tanaman Padi Organik Iqbal Salim; Diyah Yumeina; Abdul Azis; Mahmud Achmad; Sitti Nur Faridah; Husnul Mubarak; Syahrial Sabaniah; Khaeril Anwar Junaedi; Mursalim; Ahmad Munir; Salengke
Abdi Techno Vol 6 No 1 (2026): Jurnal AbdiTechno
Publisher : Departemen Teknologi Pertanian Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70124/abditechno.v6i1.2230

Abstract

Rice is a major commodity as a source of carbohydrates for the Indonesian people. Efforts to increase rice production have been made by the government, but these have not been matched by optimal harvesting and post-harvest handling, resulting in high yield losses of nearly 10%. Data from the Central Statistics Agency (2024) shows that rice harvest losses reach 9.5% during harvesting and 4.8% during the post-harvest stage, which has the potential to reduce national grain production, currently recorded at around 65 million tonnes of grain. The Tompobulu sub-district, Bantaeng Regency, has around 1,000 hectares of rice fields at an altitude of ±500 metres above sea level with small plots and a terraced pattern. The main problems faced by organic rice farmers in this area are low knowledge of cultivation, organic fertiliser production, and good post-harvest handling. These conditions cause high yield losses, both quantitatively and qualitatively, which do not provide economic incentives for farmers to increase their income. Paddy with high moisture content is also easily damaged and increases yield losses. Appropriate and location-specific post-harvest handling is needed to reduce yield losses and improve grain quality. In areas with narrow land ownership and hilly topography, appropriate technology in the form of power threshers is a suitable solution, as modern harvesting equipment such as combine harvesters cannot operate effectively in terraced rice fields.
Co-Authors Abdul Azis Abdul Waris Ahmad Munir Burhanuddin Rasyid Daniel Useng Diyah Yumeina Febriana Intan Permata Hati Husnul Mubarak Iqbal Salim Iqbal Salim Jusmira Jusmira Khaeril Anwar Junaedi Muh Abbas Muhammad Rizal Mursalim Nur Faizah Olly Sanny Hutabarat Salengke Sitti Nur Faridah Syahrial Sabaniah Tisha Aditya Jamaluddin