An adequate water supply is important for plant growth. When rainfall is not sufficient, the plants must receive additional water from irrigation.
Points consider for irrigation decisions
•Land suitability for irrigation like slope
•Effective rainfall: Part of the total rain is useful for crop production
•When to irrigate: Decide based on soil, crop and climatic condition
•How much to irrigate: Decide based on crop water requirement
•How to irrigate: Select appropriate method for irrigation
•Quality of irrigation water