Effect of Row Direction on Spring Oat Yields¹

Abstract

Synopsis Spring oats drilled in north‐south direction yielded slightly more grain than those seeded in east‐west direction. The advantage for north‐south row direction increased as row spacing increased. Stand counts of inter‐seeded clover varied with oat row spacing and this variation was affected by distance from the oat rows and also the direction of the oat rows. Soil moisture and light intensity data were collected in an attempt to explain this interesting ecological phenomenon.