Cover crops discussed at 2010 Agronomy/Soils Field Day

ruark-agronomy-soils-field-day-2010v2At the 2010 Agronomy/Soils Field Day at Arlington, WI, I conducted a field talk on the value of different cover crop species. Specifically, cereal rye, berseem clover and tillage radish. Cereal rye establishes quickly and provides ground cover, but does not function as a green manure (i.e. supplies nitrogen to the subsequent crop). Berseem clover takes longer to establish, but will provide a nitrogen credit if well established. The benefits of tillage radish are less known. The tillage radish performs a type of “bio-tillage” and may scavenge excess available nitrogen from the soils system. The field slides can be viewed here.