| <html><body><PRE> |
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| Instructions: To determine amount to irrigate; add daily
ET for each day since your |
| 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 |
06/18 |
06/17 |
06/16 |
06/15 |
2day |
3day |
4day |
5day |
7day |
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| Moravian 69 |
04/05 |
0.20 |
0.19 |
0.25 |
0.25 |
0.39 |
0.64 |
0.89 |
1.13 |
1.53 |
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| Moravian 69 |
04/20 |
0.20 |
0.19 |
0.25 |
0.25 |
0.39 |
0.64 |
0.89 |
1.13 |
1.53 |
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| Moravian 69 |
05/05 |
0.20 |
0.19 |
0.25 |
0.25 |
0.39 |
0.64 |
0.89 |
1.13 |
1.51 |
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| Red Wheat |
04/05 |
0.20 |
0.19 |
0.25 |
0.25 |
0.39 |
0.64 |
0.89 |
1.13 |
1.53 |
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| Red Wheat |
04/20 |
0.20 |
0.19 |
0.25 |
0.25 |
0.39 |
0.64 |
0.89 |
1.13 |
1.53 |
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| Red Wheat |
05/05 |
0.20 |
0.19 |
0.25 |
0.25 |
0.39 |
0.64 |
0.89 |
1.13 |
1.51 |
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| White Wheat |
04/05 |
0.20 |
0.19 |
0.25 |
0.25 |
0.39 |
0.64 |
0.89 |
1.13 |
1.53 |
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| White Wheat |
04/20 |
0.20 |
0.19 |
0.25 |
0.25 |
0.39 |
0.64 |
0.89 |
1.13 |
1.53 |
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| White Wheat |
05/05 |
0.20 |
0.19 |
0.25 |
0.25 |
0.39 |
0.64 |
0.89 |
1.13 |
1.51 |
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| Winter Wheat |
10/01 |
0.20 |
0.19 |
0.25 |
0.25 |
0.39 |
0.64 |
0.89 |
1.13 |
1.53 |
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| Norkotah Potato |
04/25 |
0.12 |
0.10 |
0.12 |
0.11 |
0.22 |
0.34 |
0.45 |
0.55 |
0.68 |
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| Norkotah Potato |
05/05 |
0.07 |
0.05 |
0.06 |
0.06 |
0.12 |
0.19 |
0.24 |
0.29 |
0.36 |
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| Centennial Potato |
05/05 |
0.04 |
0.04 |
0.05 |
0.05 |
0.07 |
0.12 |
0.17 |
0.22 |
0.29 |
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| Nugget Potato |
04/25 |
0.08 |
0.07 |
0.09 |
0.08 |
0.15 |
0.24 |
0.32 |
0.38 |
0.48 |
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| Nugget Potato |
05/05 |
0.05 |
0.04 |
0.05 |
0.05 |
0.09 |
0.14 |
0.19 |
0.23 |
0.31 |
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| Alfalfa |
Estab. |
0.23 |
0.21 |
0.28 |
0.29 |
0.44 |
0.73 |
1.02 |
1.29 |
1.75 |
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| Lawngrass |
Estab. |
0.19 |
0.18 |
0.24 |
0.24 |
0.37 |
0.61 |
0.85 |
1.08 |
1.46 |
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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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| the 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 |
| 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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| the 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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