Composts and their water extracts are often characterised by biological activity. These properties are not consistent, however. This review describes the factors influencing biological activity of composts and also presents a practical possibility of using composts in biological control diseases caused by plantpathogenes.
B. Stachowiak, Zaklad Fermentacji i Biosyntezy, Instytut Technologii Zywnosci Pochodzenia Roslinnego, Akademia Rolnicza, ul. Wojska Polskiego 31, 60-624 Poznan