The Agronomy Guide,  Crop & Soil Management 2004
Section 1, Soil Management

Tables

• Table 1.1-1. Selected properties and typical capabilities of major Pennsylvania soils.
• Table 1.1-2. Ideal soil bulk densities and root growth limiting bulk densities for soils of different textures.
• Table 1.1-3. Typical percentages of crop residue cover left after harvest for different crops.
• Table 1.1-4. Estimated percent surface residue cover remaining after selected tillage operations, overwintering, and grazing.
• Table 1.1-5. Effect of crop and management on earthworm numbers (Indiana) .

Figures

• Figure 1.1-1. Soil regions of Pennsylvania.
• Figure 1.1-2. The textural triangle quickly helps to determine the textural classification of a soil from the percentages of sand, silt, and clay it contains.
• Figure 1.1-3. Impact of soil texture and structure on plantavailable water content.
• Figure 1.1-4. Development of tillage systems in Pennsylvania, 1990-2000.
• Figure 1.1-5. Nonconservation tillage in Pennsylvania in 2000.
• Figure 1.1-6. No-till in Pennsylvania in 2000.
• Figure 1.1-7. Monthly evaporation in conventional tillage is greater than in no-till (data from Kentucky corn crop).
• Figure 1.1-8. Typical effects of tillage and crop residue on infiltration (rainfall simulation experiment).
• Figure 1.1-9. Example of erosion and residue cover moldboard, chisel, and no-till. (Rainfall simulation study, Nebraska, corn residue, 10% slope, silt loam.)
• Figure 1.1-10. No-till management intensity zones for Pennsylvania.