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Conclusions

The sustainable water management approach can be used to address the issues of irrigation water crises for present and future generations. It can be achieved by using appropriate techniques of water management to improve water productivity, and availability over an area for irrigation. Improved and efficient irrigation practices may be adopted to enhance water application efficiencies, and thereby reduction in associated damage to environment due to water logging, soil salinity, runoff and leaching of nutrients and other chemicals polluting to water sources, over exploitation of ground water. Micro irrigation systems have been characterized to be the most efficient irrigation techniques. These have efficiencies even more than 90%, doubled water productivity with improved quality of produce, reduced runoff and leaching of nutrients and chemicals to water sources. Fertigation could be adopted for efficient use and saving of fertilizer. Fertilizer savings of 20-60% and 8-41% increase in yields of horticulture and vegetable crops has been realized through fertigation. Micro irrigation is getting popularity with large potential area because of being economic feasible, widely accepted in society and environment friendly. Therefore, micro irrigation systems could be used for sustainable water management.

 
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