Composts do increase soil pH. Organic matter
and
manure can , on the other hand decrease pH by
increasing
its acidity. Compost is stable organic matter and has
lots
of organic compounds that do have a buffer effect in
soil
pH ( they resist to sudden changes in soil
pH).
Compost contributes
Hi! John,
I think the big difference is that Lime is in the line of chemical
thinking, where compost is much more complex and has to do with stimulating
soil biota and providing food for it. On other than you volcanic soil,
I would be suggesting the addition of some rock dust, but you soil shoul
Gil,
The vineyard in question is on acid basalt derived
soils with pH around 5.5 under normal treatment and has skipped to 6.1
under compost.Interesting to note that most soil cations have also gone up and
their substition for hydrogen may be the reason for the pH in crease. The
vineyard w
