Bio 1-Component is an all organic base nutrient developed by William Van de Zwaan. This base nutrient, like the 1-Component Aarde, is for use with soil that is amended with lime or some other source of calcium.

H&G Bio 1-Component Base Nutrient is composed of liquid main and trace elements and contains no bulking agents like solid fertilizers. Bio 1-Component is composed of the purest high-quality organic nutrients that are available on the market.

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