Which of the following is NOT a method of soil conservation?

The correct answer is Overgrazing.Important Points

Some other methods of soil conservation are:

• Mulching:
  • A covering of organic materials, such as straw, is applied to the bare ground between plants.
  • It helps to retain soil moisture.
• Rock dam:
  • Rocks are piled up to slow the flow of water.
  • This prevents gullies and further soil loss.
• Contour barriers:
  • Along contours, stones, grass, and soil are used to create barriers.
  • To collect water, trenches are dug in front of the barriers.
• Intercropping:
  • Various crops are cultivated in alternate rows and sowed at different times to protect the soil from rainwash.
• Contour ploughing:
  • Ploughing parallel to the contours of a hill slope creates a natural barrier for water to flow down the slope.
• Shelterbelts:
  • Rows of trees are planted in coastal and dry regions to reduce wind movement and protect soil cover.
• Terrace farming  is a method of soil conservation.
  • It is a method of soil conservation that is practised on hilly terrain.
  • On steep slopes of a hill, broad flat steps or terraces are built so that level surfaces can be used to cultivate crops.
  • They reduce surface runoff and soil erosion. 
• Hence overgrazing is not the method to conserve soil.