How do I control weeds in hemp grain?
Hemp grain stays more open than a fiber stand, so weeds compete longer for the seed crop. Most herbicides are still not labeled for hemp. Dockage starts in that row.
How do I control weeds in hemp grain?
By keeping the early stand even, because a grain crop branches and does not shade the soil the way a dense fiber wall does. Weeds in that open row steal water and leave seed in the sample. Most herbicides are not labeled for hemp. rechem's grain chemistry is the planting pass that gives you the stand, not a later herbicide.
Related reading
Related reading
How do I control weeds in hemp fiber?Hemp fiber controls weeds by closing a tall, even canopy. Most herbicides are not labeled for hemp, so a gap in the row is the weed problem.
Grain weeds are a dockage problem as well as a yield problem. The plants branch, the row stays open, and whatever goes to seed can ride into the bin with the hemp. Heartland says most herbicides are not labeled for hemp, so the stand you planted is the control you actually have.
Fiber shades sooner. That note is How do I control weeds in hemp fiber?. The shared emergence window is What do I do after hemp comes up?.
What ends up in the sample
HFGA tells grain growers the seed is sensitive and should be at a dryer quickly. Weed seed and stems in that load are what buyers call dockage. The buyer sheet is What will a hemp grain buyer dock for?. A clean field is part of the grain spec, along with moisture. The harvest contrast is How is hemp fiber different from hemp grain?.
A herbicide has to be labeled for hemp before it touches the crop. The page for that test is What pesticides can I use to grow hemp grain?. EPA's label file is the Pesticide Product and Label System.
The planting pass
rechem's work is earlier than a rescue spray: organic chemistry so the grain stand emerges together. Read What planting chemistry does hemp grain need?. The crop page is Hemp grain.
FAQ
Quick answers about this part of the approach.
Why is grain weedier than fiber?
Fiber is planted to a tight stand of stalks. Grain plants branch and carry heads, so bare soil stays visible longer.
Do weed seeds dock the grain?
They can. Buyers charge for debris and weed seed in the sample. Agree the cleanup before harvest.
Can I use the soybean herbicide program?
Only the products whose labels list hemp. The soybean program as a whole does not transfer.
What is the useful window?
Establishment. A weed that is ahead of the seedlings is already in the heads you meant to harvest.
What does rechem do about grain weeds?
Organic chemistry on the seed and in the furrow, so emergence is even enough to compete. It is not a labeled herbicide.