GK
SOIL AND AGRICULTURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Water use efficiency
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Field water use efficiency
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Consumptive use efficiency
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Economic irrigation efficiency
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Detailed explanation-1: -Field water use efficiency is a ratio between marketable crop yield and field water supply which includes water used by the plant in metabolic activities, ET and deep percolation losses.
Detailed explanation-2: -Duty represents the irrigating capacity of a unit. It is the relation the between the area of a crop irrigated and the quantity of irrigation water required during the entire period of the growth of that crop.
Detailed explanation-3: -Answer: The ratio of total quantity of water supplied to crop during its base period to area is called duty. Explanation: Duty of canal water: Duty is defined as the area of the land irrigated by the unit discharge of water flowing continuously for the duration of the base period of the crop.