Cost, average returns, and risk of switching to narrow row corn

The objective of this analysis was to compare the production cost, average profitability, and risk of corn (Zea mays L.) in 30 in, rows with rows of a pproximately 20 in. Baseline yield advantage estimates were made by pooling publicly available research data. A narrow row yield data set from Pioneer Hi-Bred International (Pioneer) was used to test the sensitivity of result s. For the producer who currently uses a 30 in. row planter for corn only, narrow row corn would increase long term equipment costs by about $6.50/acr e per yr. Much of the narrow row cost discussion has focused on equipment, but for many producers increased corn rootworm (Diabrotica spp.) insecticid e costs would be more important. This analysis indicated that narrow row co rn has potential economic advantages in the northern Corn Belt. Some benefi ts and costs of narrow row corn could not be quantified in this analysis. T hese included use of narrow row planters for both corn and soybeans, potent ial for reduced herbicide use, increased stalk breakage, increased starter fertilizer, and business risks related to use of custom operators and resal e value of equipment.