Effects of ensilage methods and field drying on residues of DDT in grass and alfalfa

J. H. Smelt, G. W. Wieringa, L. G.M.Th Tuinstra, W. Luten, C. A.A.A. Maenhout

Research output: Contribution to journalArticlepeer-review

Abstract

The behaviour of DDT and its analogues in ensiled grass was studied in the laboratory in containers of 1 dm3 volume. After a storage period of 60 days at 20 and 35°C, no significant decrease in the contents of p, p′-DDT, p, p′-TDE, p, p′-DDE and o, p′-DDT was found. The results suggest that ensilage with desirable fermentations is not practical to reduce DDT residues in pasture grass. Grass and alfalfa contaminated with low contents of DDT and its analogues, resulting from uptake from soil and traces of spray drift, were field-dried to hay. This drying did not result in significant changes in the contents of p, p′-DDT, p, p′-DDE, p, p′-TDE and o, p′-DDT.

Original languageEnglish (US)
Pages (from-to)145-151
Number of pages7
JournalAgro-Ecosystems
Volume2
Issue number2
DOIs
StatePublished - Oct 1975
Externally publishedYes

ASJC Scopus subject areas

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)

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