Soil Texture

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Across
  1. 1. the number of horses needed to pull a plough through a very heavy clay soil
  2. 3. decaying organic matter
  3. 6. the charge on clay soil that help them hold onto opposite charged ions
  4. 7. smallest size of mineral particle
  5. 8. a type of tilth created by ploughing and then leaving over winter
  6. 9. clay soils are good at holding on to this
Down
  1. 2. (7/6) added to sandy soils to help improve water holding capacity
  2. 4. these types of soil have less than 25% organic matter
  3. 5. this soil type/texture is not very naturally fertile