Adoption of Nitrogen-Efficient Technologies by U.S. Corn Farmers
2015
Weber, Catharine | McCann, Laura
Anthropogenically introduced nitrogen (N) has compromised environmental quality, but it is an essential element for crop production, particularly corn production. Increasing N use efficiency by adopting eco-innovations such as N soil testing, plant tissue testing, and N transformation inhibitors can ameliorate this problem. Data from the 2010 USDA Agricultural Resource Management Survey of corn producers was used to examine the factors affecting adoption of these practices. Twenty-one percent of the 1840 corn farmers had adopted N soil testing, 3% had adopted plant tissue testing, and 10% had adopted N inhibitors. A multivariate probit regression found significant results for each category of explanatory variable that was examined. Among the findings was the importance of information source for N recommendations. Farmers who did not obtain external recommendations were less likely to adopt all three practices than farmers who received recommendations from a crop consultant. Those who received recommendations from fertilizer dealers were less likely to adopt N soil testing and plant tissue testing. All regions were more likely to adopt N soil testing than the Midwest, and warmer regions were less likely to adopt B transformation inhibitors. Those who adopted conservation tillage were more likely to adopt plant tissue testing and N inhibitors, and those who received conservation payments were more likely to adopt N soil testing and plant tissue testing. Adoption of conservation tillage was also associated with the adoption of several other technologies. Implications for research and educational programs are discussed.
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