There are a couple of places in .Pro where you can key in notes about the farm so that you can see them when you are working in the Farm.
Notes on the Farm window are not printed anywhere. They are just there for you or anyone you send the file to.
The other place to make notes is in the Recipe window. Here the Notes can be printed.
The Notes are attached to the Recipe you are working in when you make the notes. Be sure to remember to save the notes or you will lose the information you keyed in when you leave that window.
The Notes can be saved, printed, and emailed as a report in the Report window which is navigated to by clicking the Reports tab in the Recipe window.