Laserfiche WebLink
<br />. <br /> <br />. <br /> <br />~ <br />o <br />Ul <br />I-" <br /> <br />. <br /> <br />. <br /> <br />:. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />~ <br /> <br />Water Application (Irrigation) Technology. Water application <br /> <br />technology includes all methods of water application. Surface methods <br /> <br />with proper land grading and management practices include flood irri- <br /> <br />gation, border strip irrigation, basin irrigation, furrow irrigation <br /> <br />and corrugations, or combinations of these methods. Sprinkler irriga- <br /> <br />tion (overhead) includes portable systems (hand-move systems), side <br /> <br />. <br />roll systems, drag systems, solid set systems including center pivot <br /> <br />machines, and combinations of these methods. Trickle irrigation in- <br /> <br />cludes surface and subsurface emitters for continuous application of <br /> <br />water at a rate and at a point where it can be most easily utilized by <br /> <br />the growing crop. <br />Water Removal Technology. The removal of unwanted water from <br /> <br />agricultural land constitutes a drainage problem. In general, the goal <br /> <br />of agricultural water management is to have all water (both natural pre- <br /> <br />cipitation and irrigation) available to the farm land infiltrate into the <br /> <br />soil so as to be available to satisfy the evapotranspiration and leaching <br /> <br />requirements. Some water removal is inherent in this process. Water <br /> <br />percolating below the root zone may exceed the capacity of the natural <br /> <br />subsurface drainage system and cause a water table rise detrimental <br /> <br />to agriculture. Drains are constructed to correct this condition. Like- <br /> <br />wise, surface runoff may occur from precipitation' or irrigation and <br /> <br />surface drains are needed to control and convey water ~riginating from <br /> <br />these sources. Drainage practice and theory have been applied for man- <br /> <br />agement to provide drainage of unwanted water. The facilities include <br /> <br />l5 <br /> <br />1, <br />