1. Figure 1. Long term annual precipitation received at Bird City, Kansas
cm y-1
Data from NOAA,

2. Figure 2. Precipitation distribution patterns across Kansas
78.7
44.2
64.3
102.1
48.8
Data from NOAA,
Note: values are average year precipitation in cm

3. Figure 3. Effect of surface residue and water quality on infiltration rates
Soil Sci Soc Am J 62:

4. Figure 4. Ratio of grain yields for 150% residue versus 100% residue across years for nitrogen by tillage by cover crop study.
Power et al., 1998

5. Figure 5. Stability indices of aggregates in conventional and no-tillage systems for two soil sampling depths.
0 to 5 cm depth
5 to 15 cm depth
SSSAJ 58: (1994)

6. Figure 6. Carbon dioxide evolution from aggregates in different tillage systems.
> 2000 um aggregates
250 to 2000 um aggregates
SSSAJ 58: (1994)

7. Notes: Fertilized with 0 or 67 kg ha-1 ammonium nitrate
Table 1. Effect of tillage, fertilizer, and cover crop on yield of corn following a long-term no-tillage study where different amounts of residue were returned to plots following harvest.
Notes: Fertilized with 0 or 67 kg ha-1 ammonium nitrate
Cover crop: hairy vetch overseeded in early September
tillage: none or disk
Power et al., 1998