Corn Stalk Nitrate Tests

Late season stalk nitrate tests are used to assess the nitrogen status of corn plants at physiological maturity. This year may provide interesting information since we had greater...

Accumulated GDDs Oct. 1-23, 2014

Q: How have early October rains and cooler temperatures affected corn drydown? Is it slower than normal?   View season long GDDs for 20 sites at ...

Grazing Corn Residue: A Win-Win for Crop and Cattle Producers

Figure 1. Two multi-year University of Nebraska-Lincoln studies show how cattle grazing corn stalks  benefits both cattle and crop producers. Are you looking for additional...

Nebraska Corn Board Partners with UNL for Distinctive $2 Million Presidential Chair

The Nebraska Corn Board has made a $2 million commitment to the University of Nebraska Foundation to establish the permanently endowed Nebraska Corn Checkoff Presidential Chair. The endowment...

Frost/Freeze Effects on Corn and Soybean

My grandfather liked to say there was nothing wrong with Hooper, except that it had never made up its mind, alternately wanting to be Lubbock, Texas or Duluth, Minn. After a wet, late (in...

2014 Corn Harvest Marketing Decisions

The prices of agricultural commodities are ultimately dictated by supply and demand.  Increased corn supply from US growers places downward pressure on corn prices.  Corn prices can...

Flooded Fields and Diseases to Expect in Corn

Figure 1. Stalk and ear rot diseases may become more evident in fields with standing water. Monitor for weakened stalks and evidence of ear rot diseases.   ...

Late-Season Flooding Effects on Corn

Torrential rain fell across areas of central and eastern Nebraska this week, causing creeks and fields to flood. With more rains predicted for Sunday, how may flooding affect corn productivity? ...

Scheduling the Last Irrigation of the Season

Irrigating soybeans in late August. (Photo by Troy Ingram) It is approaching that time when we need to be thinking about scheduling the last irrigation of the growing season. Crop...

Articles of Interest

Dr. Ken Cassman, University of Nebraska-Lincoln

Irrigated Corn Achieves High Yields with High Energy Efficiency, Little Impact on Environment - Jan. 2012 CropWatch Article 

Also check out:  Hybrid Maize Model-a computer program that simulates the growth of a corn crop (Zea mays L.) under non-limiting or water-limited (rainfed or irrigated) conditions based on daily weather data.


Corn Growth and Development-Iowa State UniversityCheck out the completely redone Corn Growth and Development publication from Iowa State University Extension!  Updated information for today's hybrids and excellent graphics. 

 


Corn Pollinating-Picture by Tom Dorn-UNL Extension Educator.How Extended High Heat Disrupts Corn Pollination - Aug. 2011 CropWatch Article.  Dr. Tom Hoegemeyer explains the conditions that affect pollen shed and viability in corn during high heat and high relative humidity. 

 


 slide rule imageClick here for more information on how to obtain your free N calculation slide rule from CropWatch.

 


Corn Nitrogen Recommendations Calculator - Excel sheet to determine recommended UNL nitrogen rates from soil tests.


Additional Articles

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Jenny ReesQuestions/Comments about the CropWatch Corn site? Please contact Jenny Rees, UNL Extension Educator in Clay County.


 

Upcoming Events

Please check the Crop Watch Calendar for Upcoming Events!

 

Corn Facts

Corn is an economically important crop to Nebraska resulting in $9.1 billion from 9.1 million acres harvested in 2012 according to USDA National Agricultural Statistics Service.

  1. Nebraska ranks 3rd in U.S. corn production.
  2. Nebraska ranks 1st in U.S. popcorn production.
  3. Nebraska ranks 1st in U.S. white corn production.
  4. Nebraska ranks 2nd in ethanol production capacity.

Contact Us

Charles Shapiro
UNL Extension Specialist

Jenny Rees
UNL Extension Educator

Keith Glewen
UNL Extension Educator