Biological Systems Engineering


Date of this Version



Journal of Soil and Water Conservation, November-December 1987, Volume 42, Number 6, pp. 431-434.


Copyright 1987 Soil Conservation Society of America


A mail survey of farmers in Nebraska showed their perceived use of conservation tillage was about 55%. However, using the 30% residue cover criterion that the Conservation Tillage Information Center uses to define conservation tillage, a field survey of seven counties in 1984 showed that actual use of conservation tillage was less than 5%. Fewer than 20% of the producers surveyed had more than 20% residue cover remaining after tillage and planting. The field survey also showed disk tillage systems were used by almost 70% of the producers. The moldboard plow was used by only 15% of the producers, thus creating an impression that conservation tillage had been adopted.