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Pengaruh Pemberian Biourin Sapi dan Lama Inkubasi Terhadap Ketersediaan Hara Nitrogen dan Fosfor pada Tanah Podsolik Nadya Nabila Rahma; Abdul Haris; Abdul Hadi
Acta Solum Vol 2 No 1 (2023): November 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.v2i1.2417

Podzolic soil is characterized by acidic condition, low base saturation, and low CEC and nutrient contents. The use of chemical fertilizers in agriculture may damages soil and environment and may eventually affect the health of humans. The objective of this study was to quantify the effect of cow urine on changes in pH, available N (NH4+ and NO3-), and available P of Podsolic soil. This study employed the completely randomized design two factors, in which first factor was the amounts of applied cow biourine: control (without biourine, 5.2, 10.4 and 15.6 mL of biourine), while the second factor was the incubation period: 2 and 4 weeks. Following the completion of each incubation period, soil pH, contents of ammonium, nitrate, and available phosphrous were determined for each treatment. Results of this study showed that the application of cow biourine with an incubation time of two and four weeks significantly influenced the ammonium and nitrate contents in soil. The higher amount of biourine applied, the higher ammonium and nitrate contents in the soil. The research results also showed that the application of cow biourine had an influence on available P content, but had no effect on changes in soil pH.

Sebaran Tingkat Kemasaman Tanah dan Potensial Redoks serta Kedalaman Pirit (FeS2) pada Lahan Sulfat Masam di Kecamatan Alalak Fandi Khairany Ahmad; Muhammad Mahbub; Abdul Hadi
Acta Solum Vol 2 No 2 (2024): Maret 2024
Publisher : Department of Soil, Faculty of Agriculture, Lambung Mangkurat University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/actasolum.v2i2.2437

Acid sulfate soil has a layer of pyrite, when it is oxidized, can acidify the soil. The presence of pyrite in acid sulfate soils is very diverse and must be known. Not knowing the depth of pyrite can have fatal consequences, because layers of pyrite can be lifted to the surface due to tillage so that it oxidizes. This study aims to determine and map the distribution of pyrite depth, soil pH, and redox potential. Soil samples were determined with an exploratory descriptive method through land surveys and supported by laboratory analysis of pH, Eh and FeS2. The results showed that acidity of acid sulphate soil at all sample points was classified as very acid, Eh was classified as low reduction till oxidation. Based on the results of observations of pyrite depth, 3,492.15 ha (78.1%) was actual acid sulfate soil and 979.13 ha (21.9) was potential acid sulfate soil. So proper management is needed when turning over the soil so that the pyrite is not exposed, applying lime, organic material and regulating the water level so that the groundwater level is not below the depth of the pyrite

Pengaruh Tandan Kosong Kelapa Sawit pada Media Buatan terhadap pH, Fe, dan Mn untuk Pengelolaan Air Asam Tambang Nurul Syamsiah; Bambang Joko Priatmadi; Abdul Hadi
Acta Solum Vol 1 No 1 (2022): November 2022
Publisher : Department of Soil, Faculty of Agriculture, Lambung Mangkurat University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/actasolum.v1i1.1384

Indonesia is a coal producing country and coal mining activities are carried out using the open pit method. The activity resulted in the acid mine drainage (AMD). AMD has low pH and contains high concentrations of heavy metals ions such as aluminum (Al), iron (Fe) dan manganese (Mn). One of the interesting technologies in the AMD treatment is passive treatment using constructed wetland. The system can increase pH and reduce level of dissolved metals. Oil palm empty fruit bunches (OPEFB) are potential to improve soil pH, because they have a high nutrient content such as N, P, and K. This study aims to determine the effect of OPEFB as amendment material on artificial wetland media on pH, Fe, Mn in AMD management. The method used was a single Randomized Complete Design with the treatment of OPEFB of 0, 100, 200, 300, and 500 g 5.5 kg-1 soil then replicated four times. The results showed that oil palm empty fruit bunches high significant increase in pH, Fe, Mn and 100 g 5.5 kg-1 soil doses effectively used for the AAT management by passive treatment as fulfilled the mining liquid waste quality standards according to the Ministerial Decree State of the Environment Number 113 of 2003 and South Kalimantan Province Governor Regulation Number 04 of 2007.

Sebaran Tingkat Kemasaman Tanah dan Potensial Redoks serta Kedalaman Pirit (FeS2) pada Lahan Sulfat Masam di Kecamatan Alalak Fandi Khairany Ahmad; Muhammad Mahbub; Abdul Hadi
Acta Solum Vol 2 No 2 (2024): Maret 2024
Publisher : Department of Soil, Faculty of Agriculture, Lambung Mangkurat University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/actasolum.v2i2.2437

Acid sulfate soil has a layer of pyrite, when it is oxidized, can acidify the soil. The presence of pyrite in acid sulfate soils is very diverse and must be known. Not knowing the depth of pyrite can have fatal consequences, because layers of pyrite can be lifted to the surface due to tillage so that it oxidizes. This study aims to determine and map the distribution of pyrite depth, soil pH, and redox potential. Soil samples were determined with an exploratory descriptive method through land surveys and supported by laboratory analysis of pH, Eh and FeS2. The results showed that acidity of acid sulphate soil at all sample points was classified as very acid, Eh was classified as low reduction till oxidation. Based on the results of observations of pyrite depth, 3,492.15 ha (78.1%) was actual acid sulfate soil and 979.13 ha (21.9) was potential acid sulfate soil. So proper management is needed when turning over the soil so that the pyrite is not exposed, applying lime, organic material and regulating the water level so that the groundwater level is not below the depth of the pyrite

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