a. High Calcium Ash to Counteract
Fly ash are highly alkaline and can be
spread on grassland to reduce the effect of acid rain.
However some fly ash may be deficient in important elements necessary
for plant growth and/or may have an excess of others.
Before using fly ash for agricultural purposes it is important to
check the fly ash composition as well as the soil under consideration to
make sure that they are compatible and suitable for the intended purpose.
Also all environmental and agricultural regulations should be followed.
A recent Australian study has yielded highly encouraging results using ash as a soil amendment,
including improved crop yields, increased turn around time for turf farming harvests, improved
growth, colour and general health, improved water take-up and a 30 percent reduction in
watering requirements. : http://www.adaa.asn.au/docs/Coal_Ash_Matters_Nov06.pdf
in Portland Cement Concrete (e) Next:
Agricultural and Other Uses (b)