Bio-Sustain™ Liquid Soil Amendment is a similar product to our premium biofertilizer with the exception that is made from vermicompost (worm castings) and not from poultry manure compost. Bio-Sustain™ Soil Amendment Bio-Sustain is a premium combination of beneficial micro-organisms which improves growth of the plant, builds up the population of beneficial micro- organism in the … Continue reading Soil Amendment