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No-Tillage Crop Production: A Revolution in Agriculture!

^a Dep. of Plant and Soil Scineces, Mississippi State Univ., Mississippi State, MS 39762
^b School of Environment and Natural Resources, Ohio State Univ.–OARDC, 1680 Madison Ave., Wooster, OH 44691-4096

View larger version (20K): [in this window] [in a new window]   Fig. 1. Cumulative soil loss from NT and PT watersheds at Coshocton, OH, for the years of 1970–1973. The erosion events are all rainfall events that produced runoff and erosion during this time period. To visualize the NT values, they were multiplied by 10 before being plotted in the graph (from Harrold and Edwards, 1974).

View larger version (26K): [in this window] [in a new window]   Fig. 2. Distribution of urease activity in soil profiles as affected by tillage intensity (Dick, 1984).