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All Journal Jurnal Solum Akta Agrosia Lumbung Ngabdi: Jurnal Pengabdian Masyarakat
Ajidirman ,
PS.Ilmu Tanah Fakultas Pertanian Unversitas Jambi
Agriculture, Biological Sciences & Forestry Humanities Environmental Science

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KAJIAN LAJU INFILTRASI DALAM HUBUNGANNYA DENGAN PERGERAKAN BAHAN LIAT PENYUSUN TUBUH TANAH BERBAHAN INDUK BATU LIAT DAN PASIR Ajidirman Ajidirman
Jurnal Solum Vol 2, No 2 (2005): Jurnal SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (70.303 KB) | DOI: 10.25077/js.2.2.%p.2005

Abstract

A research about movement of clay materials of soil body compiler through mechanism infiltrate and soils permeability have been conducted. The Result of research show happened movement of clay materials of soil body compiler both of soil parent materials. The maximum rate of infiltration at the soil derived from parent materials of Clay stone reach 8,79 cm / hour and downhill at deepness 52 cm ( BW1 horizon ) with speed 1,71 cm / hour. Referring to that seen rate of infiltration to cause happened movement of clay materials with tendency increase from 33 % at A horizon, increased of become 44 % at Bw1 horizon. While at the soil derived from parent materials of Sand stone that its maximum rate of infiltration reach 8,59 cm / hour and downhill at deepness 145 cm and show the increasing of clays content according to deepness of horizon and soil at Ap horison have 22% of clay and increased of become 50 % at horison 2Bt2 . Key Words : Pergerakan bahan tanah, mekanisme infiltrasi, dan bahan induk tanah
KAJIAN EFEK RESIDU AMELIORAN IN SITU BATUBARA BITUMINOUS DAN LAPISAN PENGOTORNYA TERHADAP SIFAT FISIKA-KIMIA TANAH REKLAMASI TAMBANG BATUBARA DAN HASIL KEDELAI Khairul Khairul; Ajidirman; Sunarti
Akta Agrosia Vol 25 No 2 (2022)
Publisher : Faculty of Agriculture, The University of Bengkulu

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Abstract

Application of slow decomposed organic ameliorants is expected to have a long-term impact on improving soil Physico-chemical properties. The source of in situ organic carbon that is easy to obtain on coal mine reclamation land are the coal itself and its coal impurities (parting) ameliorants. They are slow to decompose, so the residue can last for a long time in the soil. This study aimed to examine the effect of first-year residue of both coal and parting as ameliorants on the improvement of the physical and chemical properties of coal mine reclaimed soil and soybean yields. A pot study was conducted using a randomized block design with 3 treatments. The treatments tested were residues from the first year of the administration of ameliorant in situ, namely: Control, Bituminous coal ameliorant residue, and parting. Both coal and parting were tested with 5 doses each consisting of 5, 10, 15, 20, or 25 tons ha-1. The results showed that the first-year residue of bituminous coal ameliorant and coal impurities significantly affected some of the chemical properties of coal mine reclaimed soil. Both types of ameliorant residues had a very significant effect on increasing C-organic, humic acid, and total N content. The highest increase in soil organic C was found in soil ameliorated by using bituminous coal residues at 25 tons ha-1, and those by using coal impurities at was 20 tons ha-1. However, treatments did not affect soybean growth and yield.    
Pemberdayaan Kelompok Tani Makmur Melalui Pembuatan Biochar Limbah Kelapa Sawit Areal Replanting untuk Meningkatkan Kesuburan Tanah Ajidirman; Wiskandar Wiskandar; Zurhalena Zurhalena
LUMBUNG NGABDI: JURNAL PENGABDIAN MASYARAKAT Vol 1 No 1 (2023): April
Publisher : Pusat Kajian dan Pengembangan Publikasi Ilmiah Institut Agama Islam Hamzanwadi Nahdlatul Wathan Lombok Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51806/ngabdi.v1i1.13

Abstract

Oil palm residues resulting from the demolition of the first planting cycle as a source of raw material for biochar are available in large quantities on oil palm plantations that will be replanted. The ignorance of the farmers who were gathered by the Prosperous Farmers Group of Cinta Damai Village, Renah Mandaluh District, West Tanjung Jabung Regency in managing and utilizing oil palm waste caused this material to be wasted in the field. Biochar is an ameliorant that can improve soil fertility from land used for oil palm cultivation, especially during the second planting cycle. The aim of this community service program is to empower Makmur Farmers Groups in managing in situ organic carbon sources into biochar to improve and improve the quality of soil fertility on agricultural land in a sustainable manner. The service program is carried out through counseling methods, technical guidance on making biochar, and guidance on applying biochar on the second cycle of planting land or replanting oil palm plants. The results achieved from the community service program are that farmers admit that they have gained new knowledge about biochar and the use of oil palm plant residues resulting from the dismantling of the first planting cycle as raw material for biochar and its utilization to increase soil fertility in oil palm plantations. Farmers know the technology and can make biochar with the technology that has been introduced.
Co-Authors Khairul Khairul Sunarti Wiskandar Wiskandar Zurhalena Zurhalena