Northwest and Allee Research and Demonstration Farm
Producers continue to look at different management practices to increase corn and soybean yields. One area of interest is planting corn and soybeans in narrow rows. Traditionally, these crops have been planted in row widths of 30 to 38 in. Planters on the market today have the capability to plant corn and soybeans in 15- and 20-in. rows, as well as in twin rows that are spaced 8 in. apart. This study was set up to evaluate the yield impact of planting soybeans in 15-in. rows versus the traditional 30-in. row spacing.
Iowa State University
Rusk, Ryan and Sievers, Joshua L., "Evaluation of Narrow Row Soybeans" (2010). Iowa State Research Farm Progress Reports. 413.