โ Scribed by M. Gopalakrishnan
No coin nor oath required. For personal study only.
Although pressurized irrigation systems (sprinkler and micro irrigation) are considered the leading water-saving technologies in irrigated agriculture, their adoption is still low. At present, of the total world irrigated area, about 14% (39 million ha) is equipped with pressurized methods, comprising 12% (33 million ha) with sprinkler irrigation and only 2% (6 million ha) with micro irrigation. Most of the pressurized irrigated area is concentrated in Europe and the Americas. Asia has the highest area under irrigation (193 million ha, which is 69% of the total irrigated area), but has only 8.75 million ha (4.5%) under pressurized irrigation. Besides large-scale mechanized systems (like center pivot and linear move) there is good scope for adoption of small-scale, low-cost systems (like drum kit and bucket kit) in smallholder irrigation. Appropriate financial, technical, institutional and extension support is necessary for sustainable and large-scale adoption of these technologies, particularly in Asia and sub-Saharan Africa.
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