Pesticide applicator supervisor not certified through a state regulatory agency. All surface runoff controlled with applied conservation systems e.g., filter strips, waterways, contour strip cropping and residue management. A recommended irrigation scheduling program is followed. Some type of irrigation scheduling program is used that utilizes weather information and field measurement of evapo-transpiration. Irrigation performed when judged necessary by land manager.
Decision is based on past experience combined with some field measurements.
Irrigation frequency is not based on any measured parameters. The quantity and quality of the subsurface drainage discharge does not adversely impact the receiving water. The quality and quality of subsurface drainage discharge negatively impacts the receiving waters. Off-site damage Quantity and quality does not change as a result of farm use. Quantity and quality of water is slightly changed but does not have a negative impact on downstream water users, including natural systems.