Differential enhanced degradation of cis- and trans-1,3-D in soil with a history of repeated field applications of 1,3-D

• Published in: Journal of environmental science and health. Part B, Pesticides, food contaminants, and agricultural wastes Vol. 34; no. 5; pp. 749 - 768
• Main Authors: Chung, K.Y, Dickson, D.W, Ou, L.T
• Format: Journal Article
• Language: English
• Published: Philadelphia, PA Taylor & Francis Group 01.01.1999; Taylor & Francis
• Subjects: Agronomy. Soil science and plant productions; application rate; Applied sciences; Biological and medical sciences; cis-and trans-l,3-D; Decontamination. Miscellaneous; degradation; degradation rates; Enhanced degradation; Exact sciences and technology; fumigant; Fundamental and applied biological sciences. Psychology; isomers; methyl bromide alternatives; Pollution; soil; Soil and sediments pollution; Soil and water pollution; soil fumigants; soil properties; Soil science; Biodegradation; Degradation; Stereoisomer; Nematicide; Halogenated hydrocarbon; Pesticides; Chemical control; Application method; Soil pollution
• DOI: 10.1080/03601239909373224
• ISSN: 0360-1234

The fumigant 1,3-dichloropropene (1,3-D) is considered to be a potential alternative to methyl bromide. The degradation rates of cis- and trans-l,3-D in soil from a treated site during three successive annual applications of 1,3-D progressively increased with an increase in the number of annual applications. The enhancement was greater for trans-l,3-D degradation than cis-l,3-D. In untreated soil, the degradation rates of the two isomers were similar. The enhancement lasted slightly longer than 2 years after annual field application of 1,3-D had ceased. A single field reapplication of 1,3-D to the treated site that had not been treated for 2 years resulted in resumed differential enhanced degradation of cis- and trans-l,3-D. Microorganisms were responsible for the enhanced degradation.