Soybean yields in Kentucky have increased steadily in the past 20 years as a result of improved varieties and production practices. To achieve even higher yields new varieties and better production practices need to be developed and tested. One possibility for increasing soybean yields is to plant in narrow rows using varieties which respond to this practice. Although previous research in Kentucky has not shown a yield advantage for full season soybeans planted in narrow rows, researchers in other states have recently shown increases in yield with narrowing row widths. A number of new varieties have also been developed specifically for narrow row plantings. These varieties are shorter, lodge less, and have a high yield potential. This study was designed to answer the question: Will narrow row widths provide higher yields for these soybean varieties when grown under full season conditions in Kentucky?
Pfeiffer, Todd W.; Bitzer, Morris J.; Herbek, James H.; Orf, Jereme; Pilcher, D.; Tutt, Charles; and Zen, L., "Row Widths for Full Season Soybeans in Kentucky" (1985). Agronomy Notes. 102.