Whether you are applying your own chemicals or having it custom applied, collecting your as-applied files for your records is vital practice for optimizing your inputs. Application files can also be used to prove or disprove possible errors in application as they include valuable information on:
equipment performance,
actual application rates,
products applied, and
date and time of applications.
Most equipment has the ability to track the applications, even if it is applying a flat rate. If you are applying with your own equipment, make sure it is recording the data from the applicator. If you are not sure how to set up the monitor, contact your dealer for assistance.
When you contract your custom application of any product, ask the provider to send you the as-applied files for your application.
When requesting files from the custom applicator, the most common file format used is the shapefile; this format includes at least 3 files for each application. The files you receive should have the same name, but the extensions are .shp, .shx and .dbf:
fieldname.shp
fieldname.shx
fieldname.dbf
The custom applicator may not have the option of producing a shapefile, but you can request the raw data that the applicator creates and use a desktop software such as SMS, APEX, or Farmworks to view the data.
Application files are an excellent way for you to keep track of what is being applied to your fields and to keep accurate records of input efficiency on your operation.