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Maximizing the value of Irrigation

Maximizing the value of Irrigation. Kris Kohl ISU Extension Ag Engineer. Managing a Runoff Basin. Dictated by pond level Applied on wet soil Light as possible to reduce negative impact. Managing pond level. Dictated by crop need Determining crop need Evapotranspiration (water use)

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Maximizing the value of Irrigation

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  1. Maximizing the value of Irrigation Kris Kohl ISU Extension Ag Engineer

  2. Managing a Runoff Basin • Dictated by pond level • Applied on wet soil • Light as possible to reduce negative impact

  3. Managing pond level • Dictated by crop need • Determining crop need • Evapotranspiration (water use) • Temperature and Humidity • Growth stage of the crop

  4. How can we improve our skills • Measure the nitrogen level in pond • Apply water so that we don’t saturate soil • Measure water use from crop • Measure yield at end of year

  5. Water use CornInches per day

  6. Check Book Method

  7. Check Book Method

  8. Check Book Method Goals • Optimize crop yields • Never allow the soil moisture balance to go below 6 inches • Prevent runoff

  9. Gated pipe layout

  10. Offer • Collect sample in June • Determine water use from weather.com site every 2 weeks starting June 1 • 2 site visits during application • Yield check • Cost -$150

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