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Precision Irrigation. By: Charles Slough Soil 4213. Outline. Methods of Irrigation New Irrigation technologies Soil Moisture Sensors Application of precision tech. Methods of Irrigation. Flood Furrow Pivot and Linear sprinklers Drip.

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Precision Irrigation


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    1. Precision Irrigation By: Charles Slough Soil 4213

    2. Outline • Methods of Irrigation • New Irrigation technologies • Soil Moisture Sensors • Application of precision tech

    3. Methods of Irrigation • Flood • Furrow • Pivot and Linear sprinklers • Drip http://www.wtamu.edu/~crobinson/Irrigation/pivot1b.jpg http://www.irrigationmuseum.org/photos/Furrow_Irrigation_1.jpg

    4. Variable rate Sprinklers • Valley VRI Center pivots • Enhanced soil moisture management • Precision variable rate application of water and nutrients • Higher yield potential and lower input costs • Ability to put water where you want it http://www.valleyirrigation.com/userfiles/image/Water%20Application/Valley%20VRI/Valley_VRI.jpg

    5. Soil moisture sensors • Tensiometers • Electronic moisture sensor http://t3.gstatic.com/images?q=tbn:ANd9GcTvkIxMfD2tAJ9mv61l4wiCjwQdJRvYiqBhyC8N2GiMsJqMtvAGWg http://www.envcoglobal.com/files/MO-SEC-2710.jpg

    6. Tensiometers • Measures the soil water tension or how easily plants can take up water. • Most accurate measuring device • No calibration for soil type • Can modified to remote sense • Costs about $100 per tensiometer • Low cost per acre http://www.specmeters.com/Soil_Moisture/Irrometer_Tensiometers.html

    7. Electronic sensor • Fast convenient readings • Must be calibrated for soil type depending on the sensor • Can be a probe or Irrometer watermark sensor • Watermark sensors claim to be more accurate than the probes • Compare to tensiometers in accuracy except in coarse sandy soils • More easily integrated into remote monitoring stations • One station with sensors costs around $600 http://www.specmeters.com/Soil_Moisture/Soil_Moisture_Tester.html http://www.specmeters.com/Soil_Moisture/WatchDog_Watermark_Irrigation_Stations.html

    8. Application of sensors • Place throughout field • In-row placement • Place in different soil • Place in shallow and deep root zones

    9. Application of sensors • Link to base station • Remotely monitor moisture levels • Great for large scale farms

    10. Conclusion • Apply water where needed • Monitor water levels • Conserve water resources

    11. Questions?