Pengaruh Ukuran Butir Kapur Berbeda terhadap pH, Fe-larut dan Al-tukar Tanah pada Lahan Pasang Surut

Akhmad Fauzi; Muhammad Mahbub; Syaifuddin Syaifuddin

doi:10.20527/actasolum.v1i2.1810

Akhmad Fauzi Program Studi Ilmu Tanah, Fakultas Pertanian, Universitas Lambung Mangkurat
Muhammad Mahbub Program Studi Ilmu Tanah, Fakultas Pertanian, Universitas Lambung Mangkurat
Syaifuddin Syaifuddin Program Studi Ilmu Tanah, Fakultas Pertanian, Universitas Lambung Mangkurat

DOI: https://doi.org/10.20527/actasolum.v1i2.1810

Keywords: Liming, Remediation, Soil chemistry, Wetland

Abstract

Swampland in Indonesia covers an area of 34.93 million ha spread over various islands such as Sumatra, Java, Kalimantan, Sulawesi, and Papua. One type of swamp land that is often used in agriculture is tidal lands. The problems faced in the development of tidal lands for agriculture include acidic soil pH, high levels of soluble Fe and Al. One of the efforts to overcome the problem of acidic soil pH, high levels of soluble Fe and Al-dd is liming. The finer grain level of lime may increase the effectiveness of liming. The purpose of this study was to quantify the effect of lime grain sizes on changes in pH, dissolved Fe, and exchangeable Al of tidal lands. This study employed a one-factor completely randomized design (CRD) consisting of 6 treatments (Control; CaCO₃ more than 1.00 mm (> 18 mesh); CaCO₃ lime, 0.5-100 mm (18 -35mesh); CaCO₃ measuring 0.21-0.50 mm (35-70 mesh); CaCO₃ measuring 0.21 mm (<70 mesh); CaCO₃ lime measuring 0.15-1.00 mm (18 -100 mesh)). The results showed that the difference in the size of the CaCO₃ lime granules had a significant effect on changes in pH, soluble Fe and exchangeable Al. The application of CaCO₃ lime granules 0.21 mm (<70 mesh) result in increases in soil pH and suppress soluble Fe and exchangeable Al.

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