Crop Irrigation Links

Growth Stage Charts

Proper staging of your crop is important when estimating crop water use. For example, 4 leaf corn will use much less water than tasseling corn.

Crop coefficients (Kc) for nine Nebraska crops (corn, soybeans, wheat, grain sorgum, sunflowers, sugar beets, potatoes, dry beans) based on stage of growth along with descriptions and pictures can be downloaded from this site to help you stage your crop.

The weekly ETgage change value multiplied by your crop stage’s crop coefficient (Kc) will give you your crop’s estimated water use. (ETgage website)

If you are using the watermark sensors, knowing the soil type of the field is also important. UNL’s Growth Stage Charts click here.

 

Project SENSE

Project SENSE is a collaborative effort between the University of Nebraska-Lincoln, the Nebraska Corn Board, five Natural Resources Districts (NRDs) in Nebraska, and producers participating in the Nebraska On-Farm Research Network.

After two years in the field, Project SENSE (Sensors for Efficient Nitrogen Use and Stewardship of the Environment) participants are seeing reduced nitrogen per acre and increased net return. Project SENSE focuses on improving the efficiency of nitrogen fertilizer use.  2016 Project SENSE Update

AUGUST 16 – FIELD DAY

Join us on Wednesday, August 16, 2017 as UNL and CPNRD representatives will give an update on field results and show how drone and SENSE technologies are being used. The Field Day will be located at Ken Seim’s farm, so you’ll see how new techniques have benefited Seim’s operation.
Time: 10:00 AM – Noon                      Location: Ken Seim Farm – Chapman
Directions: West of Chapman on G Rd. (blacktop) to 2nd Rd. (Worms Rd). Go north to K Rd, east 1 mile to 3rd Rd, south 1/2 mile on west side of road.
GPS Coordinates 41.06828244, -98.249724
Cost: No cost to attend & lunch will be provided. RSVP by August 9th at (308) 385-6282 or lee@cpnrd.org for the lunch count.

Contact Dean Krull, UNL/CPNRD project coordinator, for more information regarding Project SENSE at (402) 469-0155.

 

NRCS IRRIGATION TOOLS

Click here for the USDA-Natural Resources Conservation Service (NRCS) tools to help you make the best irrigation management decisions within Central Platte NRD.

 

 

 

 

Below is the University of Nebraska – Lincoln Extension Crop Water Use report for June 26, 2017, brought to you by UNL Ext. and your Natural Resources District.  If you have any questions or comments about this Crop Water Use report, call UNL at 402-370-4021.

These crop water use predictions are based partly on the water use of the last three days, but mostly on the historic average. If the current weather forecast differs much from these, be sure to adjust the water use predictions. Values are for 2500 growing degree day corn and 2400 growing degree day soybeans. To use this information your fields should be within 60 miles of the weather station listed, and at the same stage of maturity. These values are for a well-watered crop.

For the Central City, Ord, Merna areas:

Corn that emerged prior to May 20th used an average of .14 per day during the last 3 days. Estimated water use by this corn for the next 3 days is .12 per day.

Soybeans that emerged prior to May 25th used an average of .14 per day for the last 3 days. Estimated water use by these soybeans for the next 3 days is .12 per day.

Potatoes that emerged prior to May 1st used an average of .25 per day for the last 3 days. Estimated water use by these potatoes for the next 3 days is .21 per day.

Alfalfa with full ground cover used an average of .30 per day over the last 3 days. Estimated water use for the next 3 days for alfalfa is .24 per day.

Bluegrass lawns used an average of .21 per day over the last 3 days. Estimated water use for the next 3 days for bluegrass lawns is .17 per day.

Duncan, Ithaca, York:
Corn that emerged prior to May 20th used an average of .14 per day during the last 3 days. Estimated water use by this corn for the next 3 days is .15  per day.

Soybeans that emerged prior to May 25th used an average of .14 per day for the last 3 days. Estimated water use by these soybeans for the next 3 days is .15 per day.

Potatoes that emerged prior to May 1st used an average of .25 per day for the last 3 days. Estimated water use by these potatoes for the next 3 days is .25 per day.

Alfalfa with full ground cover used an average of .27 per day over the last 3 days. Estimated water use for the next 3 days for alfalfa is .27 per day.

Bluegrass lawns used an average of .19 per day over the last 3 days. Estimated water use for the next 3 days for bluegrass lawns is .18 per day.