[NAFEX] Chlorosis blueberries

Hilborn.E at epamail.epa.gov Hilborn.E at epamail.epa.gov
Wed Apr 4 12:25:17 EDT 2007


Thank-you Lee,

This approach apparently avoids the potential heavy metal issue as well.

Betsy Hilborn


                                                                        
             Lee Reich                                                  
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             04/04/2007 12:14         Re: [NAFEX] Chlorosis blueberries 
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Chlorosis of blueberries is usually due to soil that is insufficiently
acidic (pH 4-5 is ideal) or poor drainage. Correct improper pH with
sulfur. The amount to use depends on the pH change needed and the soil
type, with heaavier soils needing more than lighter soils.

Some fertilizers can also make the soil less acidic. An excellent source
of nitrogen that does not make the soil less acidic, does put the
nitrogen in a form utilized by blueberries, and costs relatively little
is soybean meal (or, more expensive but available in smaller packages,
cottonseed meal). Spread it in late fall at the rate of 1-2 pounds per
hundred square feet.

Lee Reich, PhD
garden at leereich.com

Books by Lee Reich:
The Pruning Book
Weedless Gardening
Uncommon Fruits for Every Garden
A Northeast Gardener's Year


On Apr 4, 2007, at 11:08 AM, Hilborn.E at epamail.epa.gov wrote:


      Can anyone guide me as to an organic product to remediate
      chlorosis on
      blueberries?

      I have been correcting it with Miracid foliar feeds in the spring,
      which
      works quickly and lasts the season.  I have tried Ironite with no
      success.  I prefer to garden organically and would like an
      alternative
      to the miraculous Miracid if one exists.

      Betsy Hilborn
      7a

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