Influence of agronomic factors on the persistence of herbicides – A review

Herbicide persistence is very important because it determines the risk of carryover on succeeding crops. This is very difficult to predict, because the dissipation rate of herbicide depends on agronomic practices (selection of herbicides, rate and method of application, tillage, irrigation, addition of organic amendments, etc.), apart from the herbicide characteristics and environmental conditions (rainfall and photoperiod). Therefore, a thorough understanding of agronomic factors may be useful in management of this phenomena to the advantage of crop production.