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Summary Competency Area 3: Know the four methods of irrigation and the advantages and disadvantages of each with respect to different soil conditions and crop types.
The four methods of irrigation are: The irrigation water is introduced into level or graded furrows or basins, using siphons, gated pipe, or turnout structures, and is allowed to advance across the field.
Surface irrigation is best suited to flat land slopes, and medium to fine textured soil types which promote the lateral spread of water down the furrow row or across the basin. Surface irrigation Sprinkler irrigation Sprinkler irrigation is a method of irrigation in which water is sprayed, or sprinkled through the air in rain like drops.
The spray and sprinkling devices can be permanently set in place solid settemporarily set and then moved after a given amount of water has been applied portable set or intermittent mechanical moveor they can be mounted on booms and pipelines that continuously travel across the land surface wheel roll, linear move, center pivot.
The discharge rate of the emitters is low so this irrigation method can be used on all soil types.
The specific type of irrigation method varies depending on the depth of the water table. When the water table is well below the surface, drip or trickle irrigation emission devices can be buried below the soil surface usually within the plant root zone.
Above images courtesy of NRCS http:Irrigation may be defined as the application of water to soil for the purpose of supplying the moisture essential for plant growth.
Irrigation plays a vital role in increasing crop yields and stabilizing production. To choose an irrigation method, the farmer must know the advantages and disadvantages of the various methods.
He or she must know which method suits the local conditions best. Unfortunately, in many cases there is no single best solution: all methods .
Our Irrigation System Design Process. IDC has six designers on staff, each holding various certifications with The Irrigation Association in drip/micro systems, sprinkler systems, and surface irrigation methods.
3. METHODS OF IRRIGATION Irrigation water can be applied to crop lands using one of the following irrigation methods: (i)Surface irrigation (a. Early man would have used this "low-tech" method of irrigating crops -- collect water in a bucket and pour it onto the fields.
Today, this is still one of the most popular methods of crop irrigation. The system is called flood irrigation -- water is pumped or brought to the fields and is allowed to.
“There is simply no way to overstate the fresh water crisis on the planet today.” Maude Barlow and Tony Clarke, Blue Gold: The Fight to Stop the Corporate Theft of the World's Water A water crisis of catastrophic proportions is about to explode.