Biological Systems Engineering
Date of this Version
1989
Citation
Applied Engineering in Agriculture, Vol. 5, No. 3, pp. 344-47, 1989.
Abstract
A field survey of 103 private herbicide applicators was conducted during the spring of 1986 in 12 central and eastern Nebraska counties. The results showed that only 30% of the cooperators were applying herbicides within 5% of their intended application rate. Twenty-six percent of the cooperators over-applied herbicides during a single application, with an average cost due to misapplication of $3.11/ha ($1.26/a). If these values were extended over Nebraska, $4.26 million are expended for extra herbicides which were not necessary. The average cost of over application was in excess of $570 per application. Forty-four percent of the cooperators under-applied herbicides spending $3.06/ha ($1.24/a) less than anticipated. However, neither of these values include the potential cost of crop or environmental damages, or possible crop yield reductions due to improper rate of herbicide application.
Comments
Copyright 1989 The American Society of Agricultural Engineers