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15 m3/s of wa...

Question

$15 m^{3} / s$ of water is diverted to a $35$ hectares field for $5 hours$ . Soil proving after irrigation showed that $0.4 m$ of water has been stored in the root zone. Water application efficiency in this case is ______ %
51.85

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Solution

The correct option is A 51.85
Water depth applied to fields = $\frac{15 \times 5 \times 60 \times 60}{35 \times 10^{4}} = 0.7714 m$

Water depth actually stored in root zone = 0.4 m

$∴ Water application efficiency, η_{e} = \frac{0.4}{0.7714} \times 100 = 51.85 %$

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