Oklahoma Farm Report masthead graphic with wheat on the left and cattle on the right.
Howdy Neighbors!
Ron Hays, Director of Farm and Ranch Programming, Radio Oklahoma Ag Network  |  2401 Exchange Ave, Suite F, Oklahoma City, Ok 73108  |  (405) 601-9211

advertisements
   
   
   
   
   
    
   
   
   
   
   

Agricultural News


Manage Corn Plants’ Nitrogen Needs

Wed, 07 May 2014 08:43:16 CDT

Manage Corn Plants’ Nitrogen Needs Modern Hybrids Need Season-Long N from Soil

   

New research by DuPont Pioneer and university scientists into nitrogen (N) use by corn plants may change the way growers think about N management practices.

“Because of the importance of N uptake prior to flowering, when yield potential is first set, corn growers have traditionally targeted N availability to this period," says Jason DeBruin, DuPont Pioneer research scientist. “Late applications were often disregarded, as N for grain development was thought to originate from vegetative tissues rather than current uptake.”

However, extensive Pioneer research conducted over the last five years has shown that N needed for grain development is derived from both remobilized N (from leaves and stalks) and continued N uptake from the soil. In fact, modern hybrids have very different patterns of N uptake compared to older hybrids – less of their total N supply is taken up early, and more is extracted during reproductive development.

“Studies from 20121 and 20132 showed that new hybrids took up 29 percent and 40 percent more N post-flowering, respectively, than older hybrids," explains DeBruin. “Evaluation of Pioneer® brand hybrids marketed from 1934 to 2013 also supports these findings.”

In addition, Iowa State University studies indicated that at high yield levels (225 bu/acre), 70 lbs. of N/acre must still be taken up post-flowering to support grain development3. Without that additional soil-extracted N during grain fill, corn yields would be severely limited.

There are three steps growers can consider to help ensure adequate N availability:
· Apply 70 percent of the total seasonal N requirement prior to planting to help provide sufficient N for vegetative growth.
· Apply the last 30 percent of required N as late during the growing season as ground equipment allows, but generally by tasseling.
· Add a nitrification inhibitor to the late application to help delay N release.

DuPont Pioneer will release EncircaSM Yield later this year to help growers more effectively manage critical crop production inputs, including nitrogen. Encirca Yield will give growers access to insights that explicitly account for financial risk, and tools that allow them to monitor and manage soil N in real-time to improve both profitability and environmental quality.

 

WebReadyTM Powered by WireReady® NSI

 


Top Agricultural News

  • Oklahoma Grain Elevator Cash Bids as of 2:00 p.m. Wednesday, April 1, 2020  Wed, 01 Apr 2020 18:25:50 CDT
  • Wednesday, April 1, 2020 Market Wrap-Up with Justin Lewis  Wed, 01 Apr 2020 15:21:56 CDT
  • Lucas Joins Colleagues Urging USDA to Provide Immediate Assistance to Cattle Producers  Wed, 01 Apr 2020 15:08:49 CDT
  • Oklahoma Leopold Conservation Award Seeks Nominees  Wed, 01 Apr 2020 12:36:47 CDT
  • Large Meat Supplies Keeping a Lid on Long-Term Outlook, Says Katelyn McCullock, Livestock Marketing Information Center  Wed, 01 Apr 2020 10:20:58 CDT
  • From the Pilot’s Seat: The Integrity Beef Sustainability Project  Wed, 01 Apr 2020 10:03:57 CDT
  • Conservation Client Gateway an Opportunity for Oklahoma Landowners  Wed, 01 Apr 2020 09:58:47 CDT
  • Giving Overlooked Canned Foods New Life  Wed, 01 Apr 2020 08:15:47 CDT

  • More Headlines...

       

    Ron salutes our daily email sponsors!

    Oklahoma City Farm Show KIS FUTURES, INC. Oklahoma Ag Credit Oklahoma Farm Bureau National Livestock Credit Ag Mediation Program P&K Equipment AFR Insurance Stillwater Milling Oklahoma Cattlemen's Association

    Our Road to Rural Prosperity sponsors!

    Banc First OPSRC ORWA TPAOO TPAOO

    Search OklahomaFarmReport.com


       
       
    © 2008-2020 Oklahoma Farm Report
    Email Ron   |   Newsletter Signup   |    Current Spots   |    Program Links

    WebReady powered by WireReady® Inc.