From Longman Business Dictionary
cropcrop /krɒpkrɑːp/ noun [countableC]FARMING1a plant such as wheat, rice, or fruit that is grown by farmers in order to be eaten or used in industryThe main crop in China is rice.
the cotton crop
2the amount of wheat, rice, fruit etc that is produced in a seasonWheat farmers have had a record crop this year.
→ cash crop → subsistence crop