research article
Urea herbicide breakdown is slow: Under field conditions
authors
C. A. Shadbolt, University of California
F. L. Whiting, University of California
publication information
California Agriculture 15(11):10-11. DOI: 10.3733/ca.v015n11p10.
author affiliations
C. A. Shadbolt is Assistant Olericilturist, University of California, Riverside; F. L. Whiting is Laboratory Technician in Vegetable Crops, University of California, Riverside.
abstract
Abstract Not Available – First paragraph follows:
The use of certain herbicides for weed control is often restricted because of their persistence in the soil and the detrimental effect on subsequent crops. This is particularly true of short-season vegetables where a second crop may follow in from three to four months. In southern California tests two of the urea herbicides, neburon and monuron, were found to disappear relatively slowly. From 4 to 5 months were required for monuron and 8 to 9 months for neburon to fall to the 50 per cent disappearance levels.
author notes
The above progress report is based on Research Project No. 1175-D-R.
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