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Is Allelopathy from Winter Cover Crops Affecting Row Crops?

Allelopathy is one mechanism of plant-soil feedback that uses secondary metabolites to alter soil properties to affect the growth of seedlings. Allelopathic chemicals from CC have been shown to suppress weed germination and growth under both laboratory and field conditions. Row Crops following CC sometimes yield less due to N immobilization and soil water use by the CC. This review summarizes the influence of CC on subsequent row crops in field and laboratory settings.

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