Substances found in places such as plant sprouts and human urine which stimulates growth in plant tissues promoting root formation.
SOURCE: www.mastercomposter.com
Check Also
Urban food waste for soil amendment? Analysis and characterisation of waste-based compost for soil fertility management in agroecological horticultural production systems in the city of Rosario, Argentina
Urban and peri-urban lands have potential for local, sustainable food production, but their soils are …