Soil suitability for crops


Soil II - Concepts
Class - 7th ISO Subjects
 
 
Concept Explanation
 

Soil suitability for crops

Soil suitability for crops: Soil does not have the same properties everywhere, and therefore different varieties of plants can grow in different areas. That is why we have some places growing more of a particular crop than others.

  • Cereals like wheat and gram grow best in clayey and loamy soil as these are good in retaining water. Also, they are rich in humus and are very fertile. Wheat primarily comes from Punjab, Uttar Pradesh, and Haryana.
  • For rice, clayey soil is the best as it is good in retaining water. The major rice-producing states are Punjab, Andhra Pradesh, and Uttar Pradesh.
  • For lentils and other pulses, loamy soil which drain water easily are required.
  • For cotton, sandy- loam or loam which drain water easily and can hold plenty of air are more suitable.
  • Soil fertility refers to the capacity of the soil to provide nutrients in adequate amounts and in proper balance for the growth of plants. For a soil to be fertile, other growth factors such as light, moisture, and temperature should be favorable. To make a soil more fertile, some adjustments are done to its property. These adjustments are :

    (a) Alteration of pH : Acidity or alkalinity (pH) affects the ability of plant roots to take up minerals from the soil. A fertile soil should have somewhat neutral pH. Lime (calcium carbonate) is added to acidic soils to raise the pH (make soil more alkaline). Peat is added to alkaline soil to lower the pH (make soil more acidic).

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    Sample Questions
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    Question : 1

    Which of the following are the substances that are present in the soil and required for the growth of crops ?

    Right Option : A
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    Question : 2

     ____________________  soil is the best for rice crop as it is good in retaining water. 

    Right Option : A
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    Question : 3

     Wheat crop is primarily grown in___________________

    Right Option : D
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