The field capacity of a soil is 25%, its permanent wilting point is 15% and specific dry unity weight is 1.5. If the depth of root zone of a crop, is 80 cm, the storage capacity of the soil, is
Options
A. 8 cm
B. 10 cm
C. 12 cm
D. 14 cm
E. 16 cm
Correct Answer
12 cm
Irrigation problems
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1. Lacy's regime condition is obtained if
Options
A. silt grade in the channel is variable
B. discharge in the channel is variable
C. silt charge in the channel is variable
D. channel flows in unlimited, incoherent alluvium of the same character as that transported material.
4. If ? is the depth of water in metres, B is the number of days of base period and D is the duty in hactare/cumec, the relationship which holds good, is
