Biochar

Question

II've read and watched a lot on the benefits of Biochar. Funny thing is I never see anything negative.  There has to be things to consider or negatives.  If you have info on negatives or concerns please share. Thank you in advance. ****

Answer

By "Biochar", do you mean the USDA definition of a carbon source for enhancing the soils ability to hold and utilize nutrients?
 Or do you mean the South American charcoal Terra Preta soils?
 
 The term "Biochar" gets used in both scenarios but they're a little bit different.

Answer

I just put down a humic/fulvic/humin containing granular. The same company has a humic/biochar product produced from wood through the burning process. I'm on dry hill ground and this second product is supposed to break down with little moisture.  Looking at it for water retention with dry weather coming.

Answer

My understanding is that if it is not charged with nutrients before application it can cause a short tie up of nutrients in some soils until the carbon shapes are filled.
 
 Also heard that it is less effective on high OM soils. 
 
 I think it has promise in some systems on some soils, but not a silver bullet for every situation.

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Biochar

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