Much of the concern about pH levels and trying to change them is being
shown to be unnecessary, and indicates a "chemistry" approach to growing.
If you work good compost into the soil and avoid the synthetic "miracle"
fertilizers, the pH will take care of itself. A bigger concern should be
the amount of salt that comes from chemical fertilizers and even in the
water in some parts of the country. See our Web page at
<
http://www2.bio-organics.com/bio/> for an example of an all-organic
fertilizer and mycorrhizae that will make tomatoes perform at peak levels
in all types of soil. Don Chapman