Assessment of Soil and Water Quality on Sangyod Organic Rice Fields

Authors

  • Uraiwan Tongkaemkaew 1 Faculty of Technology and Community Development, Thaksin University, Phatthalung Campus, 93210
  • Yudthana Eidnoi 1 Faculty of Technology and Community Development, Thaksin University, Phatthalung Campus, 93210
  • Benjawan Baukwan 2 Institute for Southern Thai Studies, Thaksin University, Songkhla Campus, 90100

Keywords:

Heavy metals, Pesticide, Herbicide, Organic rice

Abstract

Sangyod rice is a highly nutritious rice variety, and its value can be further enhanced if it is confirmed to be free of chemical residues. This study aimed to evaluate the soil and water quality in organic Sangyod rice fields that had been cultivated organically for three consecutive years in Phatthalung Province. The study was conducted between March 2020 and April 2021. Soil samples were collected before planting to analyze soil quality and heavy metal content, while post-harvest soil samples were examined for pesticide residues. Water samples were also collected during the tillering stage to analyze heavy metal content, covering a total of 12 plots. The results indicated that most soil was silty loam, moderately acidic, and moderately saline. The levels of key nutrients, including nitrogen, phosphorus, and potassium, were relatively low. Heavy metal concentrations in both soil and water were below critical limits. Additionally, no pesticide and herbicide residues from carbamates, organochlorines, organophosphates, or pyrethroids were detected in the soil. In conclusion, continuous organic cultivation of Sangyod rice for three years ensures its safety for consumption, highlighting its suitability as a healthy and sustainable food product.

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Published

2024-12-29

How to Cite

Tongkaemkaew, U., Eidnoi, Y. ., & Baukwan, B. . (2024). Assessment of Soil and Water Quality on Sangyod Organic Rice Fields. Songklanakarin Journal of Plant Science, 11(2), 100–107. Retrieved from https://www.sjplantscience.com/index.php/ojs/article/view/78

Issue

Section

08-Soil Management & Plant Nutrients