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Weed Competition
Weed control in small grains prevents yield loss, reseeding the weed in field and less dockage in the crop. Wild oats and wild mustard are very competitive with wheat. Left unchecked 10 wild oats or wild mustard plants per square foot will reduce wheat yields 10-20 bushels per acre or 35%. Two to three Kochia plants per square foot can reduce yields 30%. Canada thistle patches often reduce yields by 60% and Green foxtail can reduce yields 10-15% when wheat is planted late. Crop rotation, tillage, and herbicides help control weeds and maximize yields.
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