Irrigation water is to be provided to a crop in a field to bring the m – McqOptions

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1.	Irrigation water is to be provided to a crop in a field to bring the moisture content of the soil from the existing 18% to the field capacity of the soil at 28%. The effective root zone of the crop is 70 cm. If the densities of the soil and water are 1.3 g/cm3 and 1.0 g/cm3 respectively, the depth of irrigation water (in mm) required for irrigating the crop is ________
A.	9.1
B.	8.1
C.	7.1
D.	None of the above
Answer» E.

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