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How many days are generally taken to obtain field...

How many days are generally taken to obtain field capacity after free gravity drainage?

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+1 vote

asked Jul 29, 2023 in Irrigation Engineering by Carter (75.2k points)

How many days are generally taken to obtain field capacity after free gravity drainage?

(a) 3 to 7 days

(b) 4 to 8 days

(c) 5 to 9 days

(d) 2 to 5 days

This question was posed to me in an internship interview.

This interesting question is from Water Requirements of Crops in chapter Water Requirements of Crops of Irrigation Engineering

irrigation engineering
water requirements of crops

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1 Answer

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answered Aug 15, 2023 by Greg (106k points)

Right answer is (d) 2 to 5 days

The explanation is: Generally field capacity is defined as the water content of soil that is left after free gravity drainage for certain period of time. This period of free gravity drainage is generally taken as 2 to 5 days.

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