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Continue to ChatBiochar as a replacement for perlite in greenhouse soilless substrates https://soilcarbon.org.nz/biochar-as-a-replacement-for-perlite-in-greenhouse-soilless-substrates/
Biochar as a replacement for perlite in greenhouse soilless substrates https://soilcarbon.org.nz/biochar-as-a-replacement-for-perlite-in-greenhouse-soilless-substrates/