"The first day of Christmas my true love sent to me
A partridge in a pear tree."
At one time a farmer gave part of his land to growing an orchard. Usually a census that has agricultural information, or in the UK the Apportionment Rolls, will tell you how much of a persons land he used for orchards.
....where to find your orchard and fruit growers.
Orchard Notes, Maine periodical
My Ancestor was Just a Farmer - early censuses