TY - JOUR T1 - Long-term annual runoff and soil loss from conventional and conservation tillage of corn JF - Journal of Soil and Water Conservation SP - 315 LP - 319 VL - 38 IS - 3 AU - Robert E. Burwell AU - Larry A. Kramer Y1 - 1983/05/01 UR - http://www.jswconline.org/content/38/3/315.abstract N2 - Effects of conventional and conservation tillage for corn on runoff and soil loss from a central Missouri claypan soil were studied for 24 consecutive years. Runoff and soil loss for conservation tillage was 85 and 42 percent, respectively, of that for conventional tillage. Observed average annual soil losses for both treatments were less than the soil loss tolerance [6.7 metric tons/hectare/year (3 tons/acre/year)] used for conservation planning on this soil type. Observed average annual soil loss was 54 and 63 percent of the average annual predicted soil loss for conventional and conservation tillage, respectively. ER -