1.You should always plant your corn at least 1.5 inches deep. 2. A moist soil will express less diurnal temperature variability than a dry soil. 3. A silty clay loam soil will hold more plant available water than a silt loam soil texture. 4. A soil that has a higher bulk density typically will not be as structured as a soil with a lower bulk density. 5. A soil with a higher bulk density will always have less oxygen available for plant growth. 6. A strategy for water conservation would be ____? Max. residue cover Fallow systems Terracing 7. All capillary water is plant available. 8. All of the following are considered essential elements that can potentially be stored in the soil profile with the exception of this element. 9. All soils are structured. 10. An aridic soil moisture regime can not grow crops. 11. Approxiamately 43% of the earth’s surface has been degraded as the result of soil erosion. 12. As a result of the dust bowl, the majority of the land in Western KS & Eastern Colorado was affected. 13. Assuming all of thes horizons are present in the soil profile, what would be the correct order from top to bottom? 14. At saturation, total water potential will be negative.15. Bulk density is defined as the mass of dry soil relative to the volume of the soil solids. 16. CEC increases with decreasing organic matter. 17. CRP acres in the next decade are expected to ____? 18. Cations on the soil colloid will be in equilibrium with the soil solution.
19. Clay & organic matter particles contribute very little to CEC. 20. Clay is the smallest mineral constituents of soil. 21. Clay soils contain intraped micropores which has an effect on bulk density. 22. Climate is the most influential factor acting on parent materials during soil formation. 23. Colloids have the smallest particle size when compared to that of clay & the least amount of specific surface area. 24. Conventional tilled soil will typically have a higher soil temperature than a no-tilled soil in the same location. 25. Cooler climates will typically have lower SOM levels than warmer climates under the same level of precipitation. 26. Diffusion is movement from a lower concentration to a higher concentration.