In organic farming, it is important to maintain soil fertility with organic fertilisers; often organic compost, manure, or slurry is used. However, the effects of […]
Freshwater sapropel (gyttja): its description, properties and opportunities of use in contemporary agriculture
Sapropel (gyttja or dy) is a type of fine-grained and loose sediments, rich in organic matter, deposited in freshwater bodies. Properties of sapropel and quite […]