Availability of iodine from acidified soil after manure amendments

This study ascertained the extractability as well as retentiveness of iodine in acid soils after manure amendments. The soil was sampled from subtropical region of China. Acid addition, especially with higher acidity, released higher amount of iodine from the soil than water addition. Irrespective o...

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Bibliographic Details
Published in:Arabian journal of geosciences 2021-09, Vol.14 (18), Article 1916
Main Authors: Mohiuddin, Muhammad, Yu, Qian, Si, Gaoyue, Irshad, Muhammad, Farig, Mohamed, Hussain, Zahid, Duan, Lei
Format: Article
Language:English
Subjects:
Acidic soils
Acidification
Acidity
Anion exchange
Anion exchanging
Anions
Availability
Cattle manure
Earth and Environmental Science
Earth science
Earth Sciences
Iodine
Manures
Organic fertilizers
Organic matter
Organic wastes
Original Paper
pH effects
Poultry manure
Retention
Soil
Soil amendment
Soil chemistry
Soil pH
Soil remediation
Soil water
Soils
Sulfuric acid
Sulphuric acid
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Summary:This study ascertained the extractability as well as retentiveness of iodine in acid soils after manure amendments. The soil was sampled from subtropical region of China. Acid addition, especially with higher acidity, released higher amount of iodine from the soil than water addition. Irrespective of the manure type, the manure treatments significantly enhanced soil iodine retention, mainly by increasing organic matter content in the soil. The soil amended with poultry manure exhibited higher iodine contents than cow manure. Higher amount of iodine was released in the presence of H 2 SO 4 (Sul.A) than HNO 3 (Nit.A) in soils, which indicated a sulfate adsorption by soil. This process may tend to reduce anion exchange pool for iodine retention. The soil amended with cow manure without acidic treatment achieved significantly higher soil iodine retention coefficient ( K p ). Manure application enhanced soil pH, whereas the acid treatment significantly reduced pH value as expected. This study indicated that organic manure addition not only is effective for remediating acidified soil, but also found beneficial for maintaining iodine availability from soil.
ISSN:1866-7511
1866-7538
DOI:10.1007/s12517-021-08268-9