Some crops are suitable for growing in soil with slightly acidic nature. Which of the following can be added to the soil in order to enhance the production of such crops?
A
Slaked lime
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B
Ammonium sulphate
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C
Sodium hydroxide
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D
Milk of magnesia
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Solution
The correct option is B Ammonium sulphate The soil can be made slightly acidic by decreasing its pH. This can be done by using sulfur-based salts as these are acidic salts. Ammonium sulfate lowers the pH of the soil. Hence, we should use ammonium sulphate in order to amke the soil slightly acidic.