Delayed seeding, however, does increase risk of fall frost damage. Later dates of planting result in a shorter growth period, shorter plants, slightly lighter seed, lower bushel weights and reduced seed yield. Planting date effect on yield of Mancan buckwheat during three growing seasons at Langdon, North Dakota. Planting date effect on yield of Manor buckwheat during three growing seasons at Langdon, North Dakota. Rate and Depth of Seeding Buckwheat is usually sown with a grain drill at the rate of 40 to 50 pounds of pure live seed per acre.
Good stands help prevent lodging.
The preferred seeding depth is 1 to 1.5 inches if there is adequate soil moisture for germination. Seeding deeper than 2 inches should be avoided. Fertilizer Buckwheat's response to phosphate fertilizer is similar to that of small grains. It is a heavy user of phosphate and application of phosphate at levels similar to those for wheat is suggested. Nitrogen levels should remain relatively low because of the tendency of the crop to lodge.