The use of soil extractants to estimate plant-available molybdenum and selenium in potentially toxic soils

✍ Scribed by Carolyn Williams; I. Thornton

• Publisher: Springer
• Year: 1973
• Tongue: English
• Weight: 460 KB
• Volume: 39
• Category: Article
• ISSN: 0032-079X
• DOI: 10.1007/bf00018053

✦ Synopsis

Uptake of Mo and Se by plants growing on soils with larger than normal concentrations of these elements cannot be predicted from soil content alone.

Results of the chemical extraction of Mo and Se from soils in the laboratory have been compared with plant uptake of Mo and Se from the same soils in greenhouse experiments. Plant uptake of Mo and Se is correlated with the EDTA-extractable Mo and Se in the soil and uptake of Mo with the ammonium acetate-extractable soil.

The role of pH, organic matter, and other soil properties are discussed with regard to Mo and Se availability and to the interpretation of results obtained by laboratory extractions.