Course Content
Historical development of soil science and soil institutions in Nepal
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Soil as a Natural Body & Its Ecological Functions
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Kinds and distribution of soil flora and fauna
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Learn Fundamentals of Soil Science and Geology with Rahul
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Importance of Soil Texture:

  1. Texture has good effect on management and productivity of soil. Sandy soils are of open character usually loose and friable.
  2. Such type of the texture is easy to handle in tillage operations.
  3. Sand facilitates drainage and aeration. It allows rapid evaporation and percolation.
  4. Sandy soils have very little water holding capacity. Such soils cannot stand drought and unsuitable for dry farming.
  5. Sandy soils are poor store house of plant nutrients
  6. Contain low organic matter
  7. leaching of applied nutrients is very high.
  8. In sandy soil, few crops can be grown such as potato, groundnut and cucumbers.
  9. Clay particles play a very important role in soil fertility.
  10. Clayey soils are difficult to till and require much skill in handling. When moist clayey soils are exceedingly sticky and when dry, become very hard and difficult to break.
  11. They have fine pores, and are poor in drainage and aeration.
  12. They have a high water holding capacity and poor percolation, which usually results in water logging.
  13. They are generally very fertile soils, in respect of plant nutrient content. Rice, jute, sugarcane can be grown very successfully in these soils.
  14. Loam and Silt loam soils are highly desirable for cultivation
  15. Generally, the best agriculture soils are those contain 10 – 20 per cent clay, 5 – 10 percent organic matter and the rest equally shared by silt and sand and 30% silt – called as clay rather than clay loam.
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