Organic fertilisers of the MAC trial and their impact on soil quality, environment and climate change.

Abstract

After 8 years, the MAC field trial in Lelystad, the Netherlands, shows the effects of different fertiliser strategies, ranging from animal manure to plant compost to mineral fertiliser. The impact on yield, soil quality, soil health, environment and climate change is discussed. The trial is unique in monitoring th eeffect of so many types of fertilisers over so many years