North American Fruit Explorers mailing list at ibiblio

[Lee Reich <garden@leereich.com>]

The majority of feeder roots of all plants lie near the surface, where the soil is most aerated and biologically active. In a soil where the pH is not sufficiently low for blueberries, I mix sulfur with the soil in the planting hole, then just spread it on top of the ground beyond the hole. By the time the roots spread, the sulfur will be doing its job.

Lee Reich, PhD

http://leereich.com/

Books by Lee Reich:

The Pruning Book

Weedless Gardening

Uncommon Fruits for Every Garden

A Northeast Gardener's Year

On Jan 29, 2008, at 7:13 PM, Alan Haigh wrote:

As I stated earlier, it apparently isn't necessary for sulfur to be well incorporated for it to have a dramatic affect on the availability of iron.  Dr. Carl Whitcomb conducted several experiments with iron deficient pin oaks.  He discovered that a surface application rapidly corrected the problem even though only the very surface of the soil had been altered.  Feeder roots got the iron that was needed from the surface even as the majority of the root system continued to function in an unaltered soil.

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