Results are reported in active ingredients. Completed and returned surveys were tabulated to store in a database management system. Several types of database management software were used to manage project data. Public access to the database will be provided in report format only over the World Wide Web. The acre addresses the question as to how many acres on which a particular chemical was used in reference to the statewide acreage of a particular crop.
Chemical treatment addresses the question of how much of a particular chemical was used on a crop.
The grower is the individual respondent growing the crop for the survey year. We used a combination of these factors to report the findings. The survey instrument was designed to optimize chemical reporting and hence concentrates on the chemical treatment unit analysis. Treatment acres refers to the acres treated accounting for multiple applications. For example, a 100 acre field with two treatments of a given chemical would result in 200 treatment acres of chemicals being reported.