Plants grown and tended or cared for in a field (An area of land enclosed and used for agricultural purposes) are known as crop plants or simply crops.
A crop is the annual or season's yield of any plant that is grown in significant quantities to be harvested as food, as livestock fodder, fuel, or for any other economic purpose. This category includes crop species as well as agricultural techniques related to cropping. Crop plants supply the major ingredients of food such as cereals, pulses, fibers, oils, vegetables etc.
Different regions produces different types of crops due to difference in soil and climate. At some places rice is produced more in quantity and at some other places more wheat is produced. In some regions maize, jute and in other regions sugar–cane is produced. The crops are divided into mainly two types :
(a) Food crops
(b) Cash crops.
Rice, wheat, maize, millet, barley are the examples of food grains. Jute, cotton, sugarcane, oil seeds and rubber are known as cash crops.
It is possible due to certain phenomenon known as "Agriculture" that refers to the production of food and goods through farming and forestry. In a broader sense, it is the science of growing plants and raising animals useful to humans. Agriculture includes the cultivation of land, and breeding and management of crops and animals. Agriculture was the key development that led to the rise of civilization, with the husbandry of domesticated animals and plants (i.e. crops) creating food surpluses that enabled the development of more densely populated and stratified societies.