Originally Posted by Michael Bell

In message
Granity wrote:


I am growing them on compost, under "Eco-Light Grow" lights (as
supplied by one of those indoor growing shops which not-quite supplies
the indoor cannabis industry). Indoors, this keeps them at 23°C, just
right. But, it's text-book stuff: Growing plants need CO2, carbon
dioxide. Would it increase their growth to provide more CO2? How might
this be done?

The most obvious thing to do is to use a CO2 cylinder, feeding the CO2
through a regulating valve. Is suitable equipment available at
reasonable cost?


There is some equipment he

'CO2 Enrichment equipment from Growco Indoor Garden Supply'
(CO2 Enrichment equipment from Growco Indoor Garden Supply)

IIRCC tomato growers enrich to around 1,000ppm.

Very informative - but American! An ocean and a tarif barrier away. I
wonder if there are British or even Dutch equivalents - I could
stumble through languages.

Michael Bell

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