Weed Control has become the biggest field management issue of the decade. Everyone seems to have troublesome weeds. Finding the right herbicide, timing the application right, and getting good kills are important.
The best weed control I am seeing in soybeans right now is with cover crops and No-Till. Cereal rye is the easiest cover crop to manage in soybean production. You can plant it late after corn and let it grow or kill it early. Some producers say it is easiest to plant soybeans in green cereal rye and kill it just before or just after planting.
Narrowing your soybean rows to 15 inches or less can also help with weed control. The past few years, we are seeing waterhemp growing in the middles of 30 inch row beans. An early canopy is important for good weed control.
Notice I have not talked herbicide management yet. If you are not using cover crops, start in the fall. Fall herbicides can give you a jump on sporing weeds. Soil applied herbicides in spring are important. In spite of a lot of bad publicity, early dicamba can give good control of marestail. Be cautious with later season dicamba operations. Post planting applications should be done when weeds and crops are both small. Don't rely on post applications for your whole program.
Prairie Farmer says to"Turn 2017 Observations into Better Weed Control."
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