Metabarcoding analysis of the bacterial and fungal communities during the maturation of preparation 500, used in biodynamic agriculture, suggests a rational link between horn and manure [Squartini et al, 2023]
Abstract Horn manure (Preparation 500) is a product used in the practice of biodynamic agricul- ture. It is obtained by an underground fermentation of cow fecal material incubated in cow horns for several months. The product is used as spray treatment meant to increase soil fertility. In the present report, …