If a fruit-orchard is re-cultivated with the same kind of crop, growth and fruit yield is reduced, which is known as apple-replant-disease. Most probably soil-borne diseases are the cause of this effect.
Effective measures like change of the crop or chemical sterilization of the soil are often not possible or not allowed. In this trial 4 different measures were investigated for their effects: organic substance, green manure with Terrafit, moustard flour with Terrafit, EKOprop and Condit 9 %.
After the first year only small differences can be seen.
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