Einfluss von Kompost und Gärgut auf Pflanzenwachstum und –gesundheit: Potential und Grenzen

Summary

One hundred Swiss composts and digestates were investigated in order to evaluate
their influence on plant growth and health. Important differences in biological compost
quality and on the impact on soil fertility and on plant health were observed. The most
important limiting factor of compost quality is the possible immobilization of
mineralized nitrogen by some composts. However, quality composts have a good
potential to protect plants against diseases. More attention should be paid to the
control of the composting process in order to improve the biological quality of
composts with more beneficial effects on crops.