| <html><body><PRE> |
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| Instructions: To determine amount to irrigate; add daily
ET for each day since your |
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| last irrigation
or significant rainfall…..(look below table for more info). |
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| Estimated Crop
Water Use (ET) |
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Daily Crop Water use for |
Accumulated Water Use (ET) |
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Date |
Dates Shown
(inches/day) |
From Latest Day Shown |
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| Crop |
Planted |
09/15 |
09/14 |
09/13 |
09/12 |
2day |
3day |
4day |
5day |
7day |
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| Moravian 69 |
04/10 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
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| Moravian 69 |
04/25 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
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| Moravian 69 |
05/05 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
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| Red Wheat |
04/10 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
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| Red Wheat |
04/25 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
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| Red Wheat |
05/10 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
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| White Wheat |
04/10 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
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| White Wheat |
04/25 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
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| White Wheat |
05/10 |
0.00 |
0.00 |
0.00 |
0.03 |
0.00 |
0.00 |
0.03 |
0.06 |
0.14 |
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| Winter Wheat |
10/01 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
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| Norkotah Potato |
04/25 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
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| Norkotah Potato |
05/05 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
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| Centennial Potato |
05/05 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
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| Nugget Potato |
04/25 |
0.00 |
0.00 |
0.00 |
0.08 |
0.00 |
0.00 |
0.08 |
0.16 |
0.31 |
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| Nugget Potato |
05/05 |
0.10 |
0.06 |
0.11 |
0.12 |
0.16 |
0.27 |
0.40 |
0.52 |
0.75 |
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| Alfalfa |
Estab. |
0.14 |
0.09 |
0.15 |
0.17 |
0.23 |
0.38 |
0.55 |
0.71 |
1.02 |
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| Lawngrass |
Estab. |
0.13 |
0.08 |
0.13 |
0.15 |
0.20 |
0.33 |
0.48 |
0.62 |
0.89 |
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| For
the latest recorded message, call 754-3494
extension 38 for La Jara, x40 (Center),
and x36 (Center #2). Use |
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crop maturity and planting date closest to your own. The Internet address for this table
is: |
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| http://www.slvet.colostate.edu |
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| Agronomist,
Colorado State University Extension.
For information on using the data, |
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| call 754-3494 x26 |
or e-mail |
ahouser@lamar.colostate.edu |
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| Note: Weather stations used for ET calculations
are located at |
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| Center (SLV
Research Center), Center02 (7 mi NE of Center), |
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| and La Jara. Use the weather
station closest to the field for which you want the ET (crop water use). |
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| Instructions: To determine amount to irrigate; add daily
ET for each day since your |
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| last irrigation or
significant rainfall.. |
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| Instructions: Add daily evapotranspiration (ET) for each
day since your last irrigation. |
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| This
is the amount of water the crop has used. This amount plus 10-20% for
efficiency must be added. |
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| Totals
for two, three, four, five, and 7-days are added for you. |
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| Rainfall is not included. Subtract effective rainfall for each individual field. What is presented is |
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net amount of irrigation needed. Add
10 to 20% for irrigation inefficiency.
You might add 20% for high |
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| pressure
overhead sprinklers and add at least 10% for low pressure drop nozzles. In the early season, do |
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| not
irrigate until the amount needed is at least 0.50 inches unless you are
trying to keep the surface wet for |
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| emergence.
Irrigating with small amounts wastes water as most of the water is lost to
soil evaporation. |
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| </PRE></body></html> |
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