Rock Dust - Knowledgebase Question

Name: Harry A
Levittown, PA
Question by haandonian
January 29, 2000
The Use Of Rock Dust As A Mineral Supplement To The Soil?

Answer from NGA
January 29, 2000


Rock dusts (for example granite dust, phosphate rock or greensand) can be used to supply nutrients and their effects last over a long period of time because they break down slowly in the soil. Their specific use and quantity would be based on the results of soil tests indicating a need for specific nutrients. Your County Extension (345-3283) can help you with the soil tests and interpreting the results.

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