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Explain the term Liming - Decreasing Soil Acidity
Acid soils can be managed in two ways, viz. either by growing crops suitable for particular soil pH or by treating the soils with additives which will counteract soil acidity. The former is rather risky, intensive and continuous cropping of aerable crops in humid region will aggravate soil acidity and use of acid producing fertilizers for 20 years on an acid soil (pH 5.5 to 5.6) will render the soil unproductive due to development of more acidity (pH 4.8). On the other hand, limed plots treated with the same fertilizers maintain reasonable good level of productivity. The importance of liming acid soils is to counteract the harmful effects of soil acidity and thus help in managing acid soils.
Explain in brief about the Crop Rotation 1. Deep rooted legumes may be grown periodically over all fields. 2. There is more continuous vegetative cover and probably less e
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Treatment of the spillage site after removal of the bulk of the waste In order to remove the final traces of the spillage, any one of the following methods may be used dependin
To show how water rises by capillarity Colour some water in a shallow dish with ink and touch a blotter to the water surface. Observe how the water increases in the blotter.
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