Kor watering in irrigation is defined as the first watering which is given to a crop when the crop is a few centimeters high.

Any irrigation system should be capable of supplying the peak requirements of the crops being grown in the command area. One of the methods to decide the water requirement of a crop is on the basis of kor watering.

When a plant is only a few centimeters high, it needs to be given its first watering which is called the kor watering in a limited period of time which is known as the kor period.

If the plants do not receive water during the kor period, their growth is retarded and the crop yield reduces considerably. The kor watering depth and kor period vary depending upon the crop and the climatic factors of the region.

Note:- Paleo is the first watering before sowing the crop in order to add sufficient water to 10 unsaturated zones of the soil for the initial growth of the crop.