1.

What are the chemical properties of soil? What effects do this have on the plants?

Answer»
  • The term pH is used to indicate the level of acidity or alkalinity of a soil. 
  • The range of pH values of a good soil lies from 5.5 to 7.5. 
  • Below pH 7 the soils are termed as acidic and above pH 7 alkaline. 
  • The pH of soil is important in determining the type of vegetation that will grow in the soil. 
  • Availability of plants nutrients is strongly tied to the pH in soil. 
  • The availability of N, K, Ca, Mg and S tends to decrease with decreasing pH.


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