INDIAN AGRICULTURE AND ANIMAL HUSBANDRY
AGRICULTURE ANIMAL HUSBANDRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Salinization occurs when the irrigation water accumulated in the soil evaporates, leaving behind salts and minerals. What are the effects of salinization on the irrigated land? [CSAT 2011]
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It greatly increases the crop production
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It makes some soils impermeable
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It raises the water table
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It fills the air spaces in the soil with water
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Explanation:
Detailed explanation-1: -Detailed Solution. The correct answer is It makes some soils impermeable.
Detailed explanation-2: -The problem of soil salinization is a scourge for agricultural productivity worldwide. Crops grown on saline soils suffer on an account of high osmotic stress, nutritional disorders and toxicities, poor soil physical conditions and reduced crop productivity.
Detailed explanation-3: -Salinization occurs when dissolved salts in water tables rise to the soil surface and accumulate as water evaporates. Often rise in a water table is due to the replacement of deep-rooted vegetation, such as trees, with shallower rooted vegetation, such as grasses.
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