FAQs
15% or less moisture is recommended storage rate for buckwheat. New and old seed should never be mixed. Old seed oxides and produces a reddish brown layer just under the hull, distinguishable by light green layer of new seed.
With a few select herbicides available, partially with broadleaf wee control, planning is needed in weed control. Use of herbicides that doesn’t leave a residue before seeding is highly recommended. Work the field early and prep the field for seeding. Let weeds germinate than prior to seeing do a pre burn with glyphosate and knife crop in. Weeds will reduce yield and quality as well as steel moisture.
When surveying your buckwheat keep an eye for grasshoppers and cutworms which can cause damage. There are several possible diseases but they will not cause harm to the plant.
Nitrogen. (N). I advise talking soil samples before incorporating any fertilizer which may be a waste of money. Nitrogen if overused can cause the plant to grow ridiculously tall and not set much seed, plus take forever to mature. Will grow wild. Over the years if I had to offer an opinion, especially for first time growers, don’t use any fertilizer.
However, 20-40 pounds of (N) plus a 20-40 pounds of Phosphate, plus 10-15 pounds of sulphur would be my wild guess, opinion.
We use a 10-30-0-15 in our operation using 60 pounds of product per acre.
We find this adequate in our operation.
Special Conditions. Buckwheat grown under high-nitrogen conditions is more prone to lodging. Buckwheat is also known to use phosphate from the soil, and make available for subsequent crops through stubble decay.
When your buckwheat reaches 90-95% black of the seed turned to a brown-black colour, swathing is your best method of harvest. Yield increase happens in your last few weeks of the season and swathing should be delayed as long as possible. Kernels that are green and are in the dough stage will mature in the from the extra moisture that is available in the stem.
Frost will play a factor in yields. In a light frost (enough to affect the top third) flowering stops and the yield’s will continue improve. In a heavy frost swathing should be immediate. Why, is because there are many seeds at the very top of the plant. Once this stem that may hold up to 50 seeds dies and dries up, the stem cannot support that amount of seed and will fall off or get shattered in the wind. Swathing when the crop is damp and having a reel speed matching the ground speed will reduce shattering losses.
Desiccation is not recommended as it weakens the stem and causes shattering in the wind and even possible lodging. Again, from drying out the stem prematurely.
When combining buckwheat, again, set the pickup speed to your ground speed. Watch for de-hulling of seed, combine setting should be around the 500 RPM on the cylinder and adjust concave as recommended by your combine owner’s manual. For buckwheat seeding I recommend using canola settings, then adjust sieves and wind accordingly.
We have chosen varieties that grow well on light or medium textured soils. Once you feel you will not have a spring frost, seeing can be done accordingly. As early as late May to as late as the 20th of June. With high soil temperatures seedlings will emerge quickly, from 2-5 days.
We recommend seeding early, to maximize yields. Buckwheat like some crops are susceptible to frost in a late spring or early fall. I recommend seeding early. If it freezes it can be resown. If you seed too late your yields will be reduced. Crop Insurance is available in Manitoba, so re-seeding is a non issue unless seed is not available.
One thing about buckwheat, should it freeze at 70 days of maturity there will be some seed. Other crops if they freeze at 70 days, most will have none.
To achieve a plant, stand around 13-17 plants/ft2 we recommend a seeding rate of 38-52 lbs/acre at a depth of 1/2 – 1 inch, much like canola.
Do not pack the ground. Buckwheat likes to go into dry ground and in soft soil conditions. It will grow anywhere but again; it likes loose ground.
We have several varieties available, some of which are in the development stage. or new breeding.
With a few select herbicides available, particularly with broadleaf weed control, planning is needed in weed control. Use of a herbicide that doesn’t leave a residue before seeding is highly recommended. Weeds will reduce yield and quality of the buckwheat.
When surveying your buckwheat, keep an eye for grasshoppers and cutworms which can cause damages. The three diseases that affect your crop are Botrytis leaf and stem rot, downy mildew and Rhizotonia root rot.