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ERIC Number: EJ878829
Record Type: Journal
Publication Date: 2010
Pages: 4
Abstractor: As Provided
Reference Count: 11
ISBN: N/A
ISSN: ISSN-1059-9053
Organic Matter Application Can Reduce Copper Toxicity in Tomato Plants
Campbell, Brian
Journal of Natural Resources and Life Sciences Education, v39 p45-48 2010
Copper fungicides and bactericides are often used in tomato cultivation and can cause toxic Cu levels in soils. In order to combat this, organic matter can be applied to induce chelation reactions and form a soluble complex by which much of the Cu can leach out of the soil profile or be taken up safely by plants. Organic acids such as citric, fulvic, and malic acids are contained in organic matter, and complex well with Cu. Both the chelation reaction and the effectiveness of soil organic matter in the chelating process are pH dependent, and generally a more alkaline soil will be less affected by high Cu levels. In addition to organic matter application, lime may also be added in order to raise the pH and aid the process by which Cu is removed. Other benefits are also derived from soil organic matter application in addition to soil remediation. Organic matter improves soil structure, exchange capacity, and water holding content. Application of organic matter is thus a viable option for restoring toxic Cu soils. (Contains 2 figures and 1 table.)
American Society of Agronomy. 677 South Segoe Road, Madison, WI 53711. Tel: 608-273-8080; Fax: 608-273-2021; Web site: http://www.jnrlse.org/
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A