What is a dominant cash crop?

A cash crop is a crop that is sold to make money and help a regions economy. In agriculture, a cash crop is a crop which is grown for money.The term is used to differentiate from subsistence crops, which are those fed to the producer's own livestock or grown as food for the producer's family. In earlier times cash crops were usually only a small (but vital) part of a farm's total yield, while today, especially in the developed countries, almost all crops are mainly grown for cash. In non-developed nations, cash crops are usually crops which attract demand in more developed nations, and hence have some export value.