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Changes in soil properties of Bangkok soil series from rice stubble burning
Author(s)
Preesong, J.
Date Issued
March 1, 2022
Type
Article
Abstract
Rice stubble burning, a very improper crop residue management, causes air pollution and soil degradation. Nevertheless, it is typically practiced by today's Thai farmers. The results indicated that the soils in the four plots were all clayey soil, which was an established characteristic of Bangkok soil series. The results showed higher content of soil organic carbon, higher contents of total nitrogen and total sulfur, as well as higher cation exchange capacity of the soil managed with no rice stubble burning at the depth of 0-15 cm. These differences were verified to be the effect of stubble burning on the topsoil because there were no differences detected in the subsoil, not any other factors. Nevertheless, the soil pH and exchangeable Ca of the soil managed by rice stubble burning were higher. Since the level of soil organic carbon was the strongest indicator of soil fertility, it would be communicated to the farmers that managing crop residue by stubble burning would make the soil less fertile than no stubble burning.
Citation
International Journal of Agricultural Technology, 18(2), 733-744, 2022