A planting depth of to 1 inches is recommended. Press drill packer wheels do a satisfactory job of firming the soil after planting. If other types of planters are used, special efforts are needed, such as a soil packer behind the drill or harrowing prior to planting to firm the seedbed. Avoid deep seeding as delayed emergence weakens seedlings, and weak seedlings are more likely to die. When pre-plant incorporated herbicides are used, shallow planting is a must to reduce stress on emerging flax seedlings.
Flax seedlings are less able to force their way through a soil crust than wheat seedlings.
A stand of 70 plants per square foot is desired. However, if uniform, stands of 30 to 40 plants per square foot may provide a satisfactory yield. As stands drop below 30 plants per square foot, weed infestation and delayed maturity are added problems. Seeding rates of 20 to 45 pounds per acre are common. In general, use lower rates in western North Dakota and higher rates in the east.