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The soil type with the least ability to retain nutrients is…

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BIOLOGY

The soil type with the least ability to retain nutrients is

A. sandy loam

B. clay loam

C. loam

D. sand

QUICK ANSWER…

D

DETAILS…  

Ability to retain water has to do with size and porosity of the soil particles. The bigger the size of soil particles, the less its ability to retain nutrients.

Now for the right answer to the above question:

  1. Sandy loam is a type of soil whose particulate size falls between that of sandy and loamy, or a mixture of sandy and loamy. So, A is incorrect.
  2. Clay loam can easily prevent leaching and retain nutrients. B is also incorrect.
  3. Loamy soils also retain nutrients. So, C is incorrect.
  4. D is correct; sandy soil encourages leaching and drainage of nutrients out of the soil, this is because the soil particles are coarse enough to allow washing away.

QUICK ADVICE…

You may please note that:

  • The increasing order of soils with more coarse and porous particles and inability to retain nutrient is as follows: Clay < loam < sand

Use the questions and answers session to raise further questions and deal more on this topic…

/ culled from 2017 JAMB-UTME biology question 30 /

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