Figure 3. Conservation Structural Practices for 2005 Corn (IN, IL, IA, NE)
Percent of Structural Practice Acres (separately, by Participation Class)
Percents
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X = Insufficient data for this item |
0= Zero value for this practice |
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□ Terraces □ Hedgerow plantings ■ Windbreaks □ Filter strips |
□ Grassed waterways □ Vegetative buffers (infield) ■ Stream-side forest buffers □ Stream-side herbaceous buffers □ Contour buffers (infield) ■ Field borders □ Critical area plantings □ Grade stabilization structures |
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