fertilisers are added to soil to increase its fertility. due to excessive use of fertilisers, the soil becomes either too acidic or too basic. plants do not grow well in such soil. treatment if excessive acidic soil with basic quicklime (calcium hydroxide) neutralises the acidic nature of soil.
organic matter is added to the soil if it is too basic. organic matter releases acids that neutralise the basicity of soil.
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Explanation:
If the soil is too acidic, it is neutralised by adding quick lime (calcium carbonate) or slaked lime ( calcium oxide) which are both bases.
If the soil is too basic it is neutralised by adding compost (organic substances) as they contain acids.
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Answer:
fertilisers are added to soil to increase its fertility. due to excessive use of fertilisers, the soil becomes either too acidic or too basic. plants do not grow well in such soil. treatment if excessive acidic soil with basic quicklime (calcium hydroxide) neutralises the acidic nature of soil.
organic matter is added to the soil if it is too basic. organic matter releases acids that neutralise the basicity of soil.