Fertilizer placement and competitive ability of spring barley varieties - Results from two years of organic field trials

Results from two years of field trial in organic spring barley showed a significantly higher grain yield per hectare in a competitive variety compared to a variety with lower competitive ability. Furthermore fertilizer placement resulted in a significantly higher grain yield than the broadcasted fertilizer application. The experiments furhermore, indicate, that combining fertilizer placement and growing a competitive spring barley variety will have mostly additive effect on the expected grain yield per hectare.