CHAPTER THREE:  IRRIGATION METHODS AND DESIGNS Preloader

CHAPTER THREE: IRRIGATION METHODS AND DESIGNS - PowerPoint PPT Presentation


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3.2 SURFACE IRRIGATION . Water is applied to the field in either the controlled or uncontrolled manner.Controlled: Water is applied from the head ditch and guided by corrugations, furrows, borders, or ridges.Uncontrolled: Wild flooding.Surface irrigation is entirely practised where water is abundant. The low initial cost of development is later offset by high labour cost of applying water. There are deep percolation, runoff and drainage problems .

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