Agricultural Engineering > GATE 2017 > Furrow Irrigation
Graded furrows of 80 m length and 0.75 m spacing are used for irrigating a field with an initial furrow stream of 100 L/min. The initial furrow stream flow reaches the lower end of the field in 40 min. Thereafter, the furrow stream flow is reduced to 30 L/min and the cutback stream flow is continued for 1 hour. The average depth of irrigation over the field in cm will be
Correct : 9.7
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