Soil Review

2. soil with a pH greater than 8.0 are considered _____
4. Plant roots require _________________ to breathe and release energy for their needs from the glucose-oxygen reaction
5. if _________ is less than 60#/acre, it needs to be added
9. _________________ texture: soils made up of mostly clay particles
12. when no more water is available to plant
15. water and wind are examples of ____ weathering
16. ______________ increases root growth and increases the absorption of phosphorus
17. ______________ texture: soils that have a high content of sand. It feels like table salt.
18. intermediate in particle size, smooth to touch

1. Increasing _________________ in the air can cause microbes in the soil to work faster in breaking down organic matter
3. _____________ determines the amount and size of space between soil particles.
6. _______________ texture: soils that are silty or loamy in nature. Feel somewhere between fine and coarse
7. smallest particle size
8. largest in particle size
10. when all gravitational water has been drained and a vertical movement of water due to gravity is negligible
11. arrangement of individual soil particles into a larger group
12. ________ is deficient if it is less than 250#/acre
13. soil amendments need to be applied if the field is <6.4 or >8.0
14. ______________ and high rainfall increase decomposition.