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Basic Concepts of Modeling Pesticide Fate in the Crop Root Zone

Published online by Cambridge University Press:  12 June 2017

R. J. Wagenet  and
P.S.C. Rao
R. J. Wagenet
Affiliation:
Dep. Agron., Cornell Univ., Ithaca, NY 14853
P.S.C. Rao
Affiliation:
Dep. Agron., Cornell Univ., Ithaca, NY 14853
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Extract

Modeling is increasingly being used as a tool for the evaluation of the environmental fate of pesticides. Sorption, leaching, degradation, and volatilization are some of the processes being integrated through the use of simulation modeling techniques. Several research programs are focusing their attention on such issues (16, 17, 18, 32, 35), with regulatory agencies involved in management of pesticides also taking a modeling approach (3, 7). Because of the extreme complexity of agroecosystems, it is obvious that the use of simulation models will continue to be the most expeditious, reliable, and cost-effective means of integrating the various processes acting upon a pesticide to determine its fate. For example, modeling will help to summarize and interpret efficacy trials and will provide the vehicle for transferring experimental results to unstudied situations, such as the potential environmental fate of an applied herbicide. However, proper development, testing, and responsible use of a modeling approach must be based upon a thorough, comprehensive understanding of interdependent and dynamic natural processes.

Type
Research Article
Information
Weed Science , Volume 33 , Issue S2: Supplement 2: Soil Aspects Symposium , 1985 , pp. 25 - 32
Copyright
Copyright © 1985 by the Weed Science Society of America 

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References

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