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


Consider These Times When Harvesting Forages to Reduce the Dangerous Build Up of Nitrates

Tue, 18 Jul 2017 09:44:57 CDT

Consider These Times When Harvesting Forages to Reduce the Dangerous Build Up of Nitrates Dr. Glenn Selk, Oklahoma State University Emeritus Extension Animal Scientist, offers herd health advice as part of the weekly series known as the "Cow Calf Corner" published electronically by Dr. Peel and Dr. Glenn Selk. Today, Dr. Selk offers producers advice on the best times to harvest forages to avoid the build up and concentration of nitrates that could be potentially threatening to the health of your livestock.


"Forage sorghums are used by cattle producers for summer grazing or harvested for hay. Forage sorghums can be very productive and high quality, but can also accumulate toxic levels of nitrate when stressed. In the past, the assumption was made that the plant continues soil nitrate uptake during nighttime hours, followed by accelerated conversion of the nitrate to protein during daylight hours. Therefore past recommendations have been to wait until afternoon to cut forage sorghum for hay if anticipated nitrate levels are marginally high. You have heard the old adage: 'Never assume anythingÖ.'



"To evaluate the significance of the change in nitrate concentration in forage sorghums during the day, Oklahoma State University Extension County and Area Educators collected samples at two hour intervals from 8 AM to 6 PM. Five cooperatorís fields ('farm') were divided into quadrants. Three random samples, consisting of ten stems each, were taken from each quadrant at the specified interval. The samples were analyzed at the Oklahoma State University Soil, Water, and Forage Analytical Laboratory to determine the level of nitrates, in parts per million (ppm).    



"As expected, differences between 'farms' were substantial and significant. The mean concentration of nitrate for individual farms varied from only 412 ppm to 8935 ppm. The mean nitrate concentrations across all farms were 3857, 3768, 4962, 4140, 4560, and 4077 ppm for samples at 8 AM, 10 AM, noon, 2 PM, 4 PM, and 6 PM, respectively. Remember, most laboratories consider nitrate concentrations at, or above 10,000 ppm potentially lethal. There was much more variation between farms than between harvest times. Time of day of harvest did not impact nitrate concentration or proportion of dangerous samples of forage sorghum hay.   Donít be misled and believe that cutting the hay late in the day will solve all of the potential dangers of nitrate toxicity. Source: Levalley and co-workers. 2008 Oklahoma State University Animal Science Research Report."




   

 

WebReadyTM Powered by WireReady® NSI

 


Top Agricultural News

  • Industrial Hemp Cultivation Taking Off in Oklahoma as State Gears Up for New Research Opportunity  Fri, 20 Jul 2018 18:05:57 CDT
  • CattleFax's Duane Lenz Kicks Off OCA Convention with Some Challenging, Yet Favorable Forecasts  Fri, 20 Jul 2018 17:31:59 CDT
  • Oklahoma Grain Elevator Cash Bids as of 2:00 p.m. Friday, July 20, 2018  Fri, 20 Jul 2018 15:22:44 CDT
  • Federal Bank of Kansas City Reports That Large Loans for Livestock Drive Uptick in Farm Lending  Fri, 20 Jul 2018 15:15:23 CDT
  • Trump's Trade Advisor Pete Navarro Accused of Being Out of Touch After "Rounding Error" Remark  Fri, 20 Jul 2018 15:08:30 CDT
  • Land Values Across the Southern Plains Range from Stable to Down 10 Percent Compared to 2017  Fri, 20 Jul 2018 14:58:35 CDT
  • New Fieldprint Calculator Developed by Texas Tech Helps Define Physical, Economic Sustainability  Fri, 20 Jul 2018 14:46:56 CDT
  • Cairl Collins of Antlers, Okla. Recognized as a Significant Woman in Agriculture by OK Dept. of Ag  Fri, 20 Jul 2018 14:33:19 CDT

  • More Headlines...

       

    Ron salutes our daily email sponsors!

    Livestock Exchange Oklahoma Ag Credit Oklahoma Farm Bureau National Livestock Credit P&K Equipment Tulsa Farm Show Stillwater Milling American Farmers & Ranchers KIS FUTURES, INC. Oklahoma Cattlemen's Association

    Search OklahomaFarmReport.com

    Find more about Weather in Oklahoma City, OK

       
       
    © 2008-2018 Oklahoma Farm Report
    Email Ron   |   Newsletter Signup   |    Current Spots   |    Program Links

    WebReady powered by WireReady® Inc.