Growth of relay intercropped soybean.

Relay intercropping of wheat (Triticum aestivum L.) and soybean [Glycine max (L.) Merr.] allows for earlier soybean planting than in conventional doublecropping systems, but shading and other influences of the wheat crop may be detrimental to intercropped soybean development. The purpose of this study was to determine the effect of relay intercropping on soybean growth and yield. Intercropped soybean, planted 19 (1989) or 14 (1990) days before wheat harvest, was compared with a control treatment (same no-till planting pattern and date, but no wheat) on a Cecil sandy loam (clayey, kaolinic, thermic Typic Hapludults) soil []