GK
BASIC GENERAL KNOWLEDGE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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increase the acidity of the soil
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increase the alkalinity of the soil
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restore nitrates to the soil
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make the soil more porous
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Detailed explanation-1: -Lime is sometimes applied to soil in order to increase the alkalinity of the soil. It increases the pH of acidic soil (the lower the pH the more acidic the soil); in other words, soil acidity is reduced and alkalinity increased. it provides a source of calcium and magnesium for plants.
Detailed explanation-2: -Lime application neutralizes soil acidity, raises soil pH and adds calcium and magnesium to the soil. Liming also decreases the plant availability of elements such as aluminum and manganese which can be toxic to plants.
Detailed explanation-3: -The primary role of lime is to alter soil pH and balance soil acidity which can improve the availability of plant nutrients. Thus, the correct answer is option C. i.e., Acidic. Note:When low soil pH begins to inhibit the supply of nutrients, limes are added.