Pore space in soilless substrates Do you know that you are mostly paying for ‘pore space’ when buying a bag of soilless substrate? This is because, unlike mineral soils, nearly three-fourth volume of soilless substrates is pore space. I like to refer pore space as the ‘functional’ component of a substrate. By definition, pore space…Read more about Looking through the pores of a soilless substrate[Read More]
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