How can I find out if my area is copper deficient?

[nbelval]

The subject says it all! I know we are selenium deficient here in Southern NH, but how can I find out the copper levels? I've been googling and can't seem to find the answer!

Thanks!

Nicole

 

[Goatherd]

Your County Extension Office should be able to give you that information or direct you to a more appropriate agency.
Here is a map that may help you locate your state's office.

http://npic.orst.edu/pest/countyext.htm

 

[nbelval]

Thanks. I did stop into my agency and asked about Selenium and didn't think to ask about copper! Duh! I will give them a call

 

[goatboy1973]

Our county extension office through the University of Tennessee provides the containers & detailed instructions on doing soil samples. This is the only sure fire way to know exactly what your farm is deficient in. They will give the results & recommendations in a report that you can take to your local Farmer's CO-OP and they will custom mix what you need for your particular farm. The testing is only a small fee. You might also check with your local soil conservation association for help. Good luck!

 

[Pearce Pastures]

http://mrdata.usgs.gov/geochem/doc/averages/cu/usa.html

Map of the average soil content by county. Other factors do effect how copper is absorbed so keep that in mind too.

 

[nbelval]

Thanks so much for all the input and suggestions!

 

[marlowmanor]

What levels of copper and selenium are considered deficient?

 

[Pearce Pastures]

Under 0.5mg of selenium per kilogram of soil is considered deficient. Over 3mg is toxic to goats. Goats require 0.2mg (ppm). Actually, I am not sure on the copper though but because so many things can impact how it is absorbed, I am not sure if there is a way to say whether having low content in the soil means anything.