FORESTRY
SOIL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Less acidic soil encourages soil organisms.
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Lime can flocculate clay particles, making pores larger.
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Adds calcium
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Lowers the pH.
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Detailed explanation-1: -Adding lime (Figure 1) increases soil pH (reduces acidity), adds calcium (Ca) and/or magnesium (Mg), and reduces the solubility of Al and Mn in the soil.
Detailed explanation-2: -Lime raises pH and is usually added as ground limestone, commonly called ‘garden lime’. The active ingredient is calcium carbonate. Ground limestone is easy to spread, widely offered in garden centres, and is the recommended liming material for gardeners.
Detailed explanation-3: -Lime will neutralize this acidity by dissolving, whereupon it releases a base into the soil solution that reacts with the acidic components, hydrogen and aluminum. Soil pH is an indicator of “soil acidity” (Figure 1). A pH of 7.0 is defined as neutral.
Detailed explanation-4: -What is lime? Lime is a soil amendment made from ground limestone rock, which naturally contains calcium carbonate and magnesium carbonate. When lime is added to soil, these compounds work to increase the soil’s pH, making soil less acidic and more alkaline.