Subscribe and stay up-to-date with the latest news and great offers from DEKALB, Asgrow and Deltapine.
Don't miss out on the latest agronomic news.
Local agronomic alerts.Delivered straight to your inbox.
Figure 1. Effect of Seeding Rate and Corn Product in Twin Rows
Over time, optimum planting populations have been increasing steadily. This leads to decreased space and increased competition between individual plants within the row. Narrower row spacing may be able to alleviate some of this increased competition stress.
As recommended plant populations increase, narrow row widths become more desirable for several reasons:
Figure 2. Effect of Seeding Rate and Corn Product in 30-inch rows.
Yield penalties are not associated with narrow row widths.1 In northern states, a yield response is generally expected from using narrow rows, likely due to a shorter growing season.1 Seeding rate is often a decision based on the range specified for individual corn products. Therefore, a corn product and population interaction could occur when comparing row width configurations. The purpose of this trial is to observe if there is a yield response to row spacing and populations for different corn products.
Figure 3. Effect of Seeding Rate and Corn Product in 20-inch rows.
Seeding Rates (seeds per acre)
Each corn product was planted at each population in each row width.
Plots were planted on May 7, 2014. Soil was previously planted to soybean, and received conventional tillage with chisel plow in the fall and soil finisher in the spring. Crop was harvested October 7, 2014.
Discover the optimal planting rate for your selected seed products and maximize their performance in your field.
1Abendroth, L. and Elmore, R. 2006. What row spacing is best? Iowa State University.