Crop variety improvement depends upon finding a crop variety that can give a good yield. One way of getting desirable characters into the crop variety is by using hybridisation. Hybridisation refers to crossing between genetically dissimilar plants. Irrigation of the agricultural lands play a very important role in increasing the yield. The process of supplying water for crops is known as irrigation.This overcomes the dependency on monsoons for water. Irrigation can be done using different kind of water resources such as wells, canals, tanks and river lift systems. Crop protection management is very important as the field crops are infected by a large number of weeds, insects, pests and diseases. This hinders the growth of the plants. Pesticides are used to control the pests.