Original uncut version of interview with Egbert van Megellen about organic b fertilizers. He is selling bat guano and plant-based fertilizers since 2002 under Guanokalong brand. We have made this interview during Cannafair trade show in Düsseldorf in August 2022. What is the guano? Where it comes from? What does it contain and what are its benefits? Are organic fertilizers suitable for pharmaceutical grade cannabis? Is it necessary to process bat guano before its use? Answer on all these questions and many more you will hear in an interview.