![]() COVID-19 Portal While this global health crisis continues to evolve, it can be useful to look to past pandemics to better understand how to respond today.Student Portal Britannica is the ultimate student resource for key school subjects like history, government, literature, and more.Demystified Videos In Demystified, Britannica has all the answers to your burning questions.This Time in History In these videos, find out what happened this month (or any month!) in history.#WTFact Videos In #WTFact Britannica shares some of the most bizarre facts we can find.Britannica Classics Check out these retro videos from Encyclopedia Britannica’s archives.Britannica Explains In these videos, Britannica explains a variety of topics and answers frequently asked questions.Interviews with the authors of BeefWatch newsletter articles become available throughout the month of publication and are accessible at. Then, if you want to talk with someone about the safety or feeding alternatives for your forage you can be sure both of you are talking the same language. Next time you test your hay or corn stalks or cover crop for nitrates, look closely at the report to see what method your lab used to report your nitrate results. In fact, it is easy to mathematically convert between nitrate and nitrate nitrogen by using the following formulas: Is one method better than the other? No – both give the same result and either one can be used to determine the safety of your feed. As a result, the danger level for nitrate nitrogen begins somewhere between 2,000 and 2,300. Thus, a much smaller amount of nitrate nitrogen is needed to produce the same effect as the entire nitrate ion. ![]() Nitrate is one part nitrogen plus three parts oxygen so nitrogen only makes up about 22.6 percent on the nitrate ion. ![]() Some labs, though, report the amount of nitrogen that is in the nitrate ion and call it nitrate nitrogen and report it chemically as NO 3-N. Most labs and advisors consider a level of 9,000 to 10,000 parts per million of the nitrate ion to be the level where toxicity concerns begin. When a laboratory reports directly the concentration of nitrate, it is referring specifically to the nitrate ion, which is designated chemically as NO 3. So what is the reason for these big differences? Basically, it comes down to how each individual laboratory tests for and then reports results for nitrates. So the same score or value can range from quite dangerous to perfectly safe depending on how it is reported. However, if the score was 3,000 parts per million of nitrate there should be no worries since this is less than one-third the danger level for nitrates. ![]() It would be risky for cattle to eat this forage without taking some precautions. Why is it important to know the difference between nitrate nitrogen and nitrates? Well, using the example above, if the score was 3,000 parts per million of nitrate nitrogen, then the forage may have a nitrate concentration that is almost 50 percent higher than what we often consider to be the potentially toxic level for nitrate nitrogen. So – the first question I ask is “Was this reported as nitrates or as nitrate nitrogen?” Unfortunately, with just this information I’m unable to give a useful answer. Am I in trouble?Įvery year I get multiple questions similar to this one. I just got the forage test results back from the lab and the nitrate score was 3,000.
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