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Sawdust Amendment in Agricultural and Pasture Soils Can Reduce Iodine Losses

Author

Listed:
  • Muhammad Mohiuddin

    (Department of Environmental Sciences, Kohsar University Murree, Murree 47150, Pakistan)

  • Zahid Hussain

    (Department of Development Studies, Comsats University Islamabad (CUI), Abbottabad Campus, Abbottabad 22060, Pakistan)

  • Asim Abbasi

    (Department of Environmental Sciences, Kohsar University Murree, Murree 47150, Pakistan)

  • Jawad Ali

    (Environmental Research Institute, Shandong University, Qingdao 266237, China)

  • Muhammad Irshad

    (Department of Environmental Sciences, Comsats University Islamabad (CUI), Abbottabad Campus, Abbottabad 22060, Pakistan)

  • Muhammad Atiq Ur Rehman Tariq

    (College of Engineering and Science, Victoria University, Melbourne, VIC 8001, Australia)

  • Anum Intisar

    (Department of Plant Pathology, College of Agriculture, University of Sarghoda, Sarghoda 40100, Pakistan)

  • Aiman Hina

    (Department of Botany, Kohsar University Murree, Murree 47150, Pakistan)

  • Qamar Uz Zaman

    (Department of Environmental Sciences, The University of Lahore, Lahore 54590, Pakistan)

  • Anne Wai Man Ng

    (College of Engineering, IT & Environment, Charles Darwin University, Darwin, NT 0810, Australia)

Abstract

Iodine loss is common in the soil of hilly regions due to higher precipitation rates and steeper slopes. Iodine deficiency in soil reduces iodine’s bioavailability to fruits and vegetables and consequently may contribute to health complications. However, the iodine retention of soils after the addition of selected organic and inorganic amendments has not been studied. Therefore, a study was carried out to investigate iodine loss during surface runoff. For this purpose, a soil amendment (namely, sawdust, charcoal, wood ash, lime or gypsum) was applied separately to pasture and agricultural soils under natural rainfall conditions. The soil was fertigated with iodine in the form of potassium iodide (KI) at the rate of 200 ppm. Surface runoff was related to soil properties. Results showed that iodine content in surface runoff was linearly related with soil pH (R 2 = 0.89, p < 0.05) and inversely related with soil organic carbon (R 2 = −0.76, p < 0.05). Soils amended with sawdust had significantly reduced iodine content in runoff. A higher amount of iodine was lost via surface runoff from soil after inorganic amendment. Soil amendments were varied for iodine retention in soil in the order of sawdust > charcoal > wood ash > lime > gypsum. The study results indicated that organic amendments, especially sawdust, improved soil properties and increased the iodine retention capacity of soils.

Suggested Citation

  • Muhammad Mohiuddin & Zahid Hussain & Asim Abbasi & Jawad Ali & Muhammad Irshad & Muhammad Atiq Ur Rehman Tariq & Anum Intisar & Aiman Hina & Qamar Uz Zaman & Anne Wai Man Ng, 2022. "Sawdust Amendment in Agricultural and Pasture Soils Can Reduce Iodine Losses," Sustainability, MDPI, vol. 14(20), pages 1-13, October.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:20:p:13620-:d:948880
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    References listed on IDEAS

    as
    1. Muhammad Mohiuddin & Jawad Ali & Megersa Kebede Leta & Muhammad Waseem & Muhammad Irshad & Zahid Hussain, 2021. "Estimation of Iodine Leaching in Soil Amended with Organic and Inorganic Materials Using HYDRUS 1-D Model," Sustainability, MDPI, vol. 13(19), pages 1-13, October.
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