Course Content
Learn Principles of Agronomy — B.SC agriculture
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  1. Reducing wind velocity at the ground surface:
  • Shelterbelt can filter the wind and at the same time lift the wind from the surface.
  • In general, wind velocity can be reduced by the shelterbelts on the windward side from 5-10 times of tree height and on leeward side the protection is upto 30 times tree height.
  • Close growing crops like groundnut, green gram are more effective than widely spaced crops like cotton and sorghum.

  1. Increasing the size of soil aggregates
  • Clay soils with high organic matter are coarsely granulated and are not subjected to serious wind
  • Bigger the size of the aggregates, lesser will be the effect of wind on soil erosion.

  1. Keeping the soil moist:
  • Water creates surface tension and it hold the soil together.

  1. Trapping the saltation particles
  • Strips of upright growing crops or stubble across the direction of wind are prove successful in catching the abrasive material carried by saltation.
  1. Various oil or rubber-based emulsion
  • Poly functional polymers developed chemical bonds with clay materials in the soil and form temporary soil aggregates.
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