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University of Manitoba Faculty of Agricultural and Food Sciences Department of Plant Science

Cover Crops
and Green Manures

Cover crops are defined as low-growing understory crops that often grow outside the main-crop growing period. Cover crops offer services to the cropping systems such as adding soil N, reducing soil erosion, increasing soil quality and suppressing weeds. Green manure crops are crops grown specifically to replenish the soil system, typically with N, but also P and other nutrients. In wet areas, green manure crops are often grown as cover crops, while in drier areas green manure crops are typically used during the summerfallow phase of the rotation.


Green Manure Crops

Cover Crops


Review: Redesigning Canadian prairie cropping systems for profitability, sustainability, and resilience. Thiessen Martens, J. R., Entz, M. H. and Wonneck, M. D. 2015.

Copyright and Liability

This page created October 2005.
Last updated September 2016.