We have heard of how Israeli agricultural scientists turned the deserts of Sinai into greenlands producing fruits and vegetables, making Israel one of the largest producers of oranges in the world from the desert sand.
|Details of a drip irrigation system, courtesy Jain Irrigation Systems,|
Drip irrigation which was started commercially in Israel during the 70s has now become an accepted practice in arid and semi arid regions of the world. In northern parts of Karnataka, drip irrigation is used for floriculture, cultivation of fruits and vegetables and possibly maize and jowar ...
Drip irrigation saves anywhere from 30% to 60% of water used for irrigation purposes. Drip irrigation saves labour and electricity, controls soil erosion and even saline water can be used for irrigation,
|Drip Irrigation Systems, courtesy FAO, United Nations.|
Maintenance of the system is of great importance to ensure high effectiveness and longevity of the system. Use of high quality ISI mark pipes and valves made from virgin plastic instead of the cheap recycled plastic can ensure longevity of the system for upto ten years if the pipes are exposed to sunlight for upto 800 hours a year.
Clogging of laterals and emitters prevents the flow of water to the roots of the plants. This happens because of algae deposits, sand, organic material, Calcium Carbonate etc. Acid treatment and chlorination ate two methods by which clogging can be prevented. Filters are to be cleaned of impurities daily and flushed cleaned weekly of impurities. End caps of sections and laterals should be opened for upto 30 minutes occasionally once in a couple of days. Adding Hydrochloric acid at 25% concentration is an effective way of cleaning pipe from clogging of organic impurities. Maintaining a pH value of 4 (acidic) throughout the pipe for upto 24 hours, is a good way to do this.
Jain Irrigation Systems is one of India's top drip irrigation company. Click here for the more commercial details.
As per the Times of India, the world's largest drip irrigation project is coming up in Bagalkot in Karnataka. Covering about 35000 hectares of arid farmland in two phases, the Rs 768 crore scheme will benefit almost 15,000 small and medium farmers in the area. The scheme will help the farmers in the area to double the production of maize and jowar in the area. After the first five years of operation and transfer of ownership based on a BOOT model, from the Jain Irrigation group, the farmers will pay a meagre charge of Rs 1330 for each acre to the Water Users Associations, who will help maintain the system in the long run.
The success of the Bagalkot project will give the needed boost for other drip irrigation systems in the country and abroad. With dwindling precipitation noticed in certain areas of the country, especially North Karnataka and the impact of the seasonal El Nino Southern Oscillation across the world once in seven years, it is all the more important that drip irrigation systems are given the needed fillip and encouragement across the country to help build the needed food stocks for food security in the country.