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In an agricultural area, the porosity and field capacity of the soil are measured as 46% and 39%, respectively. For a certain crop the permanent wilting point is 11% and the depth of the root zone is 1.2 m. The consumptive use is 16 mm/day. If the irrigation efficiency is Reg.No/100%, solve for the frequency of irrigation such that the moisture content does not fall below 50% of the maximum available water.

In an agricultural area, the porosity and field capacity of the soil are measured as 46% and 39%, respectively. For a certain crop the permanent wilting point is 11% and the depth of the root zone is 1.2 m. The consumptive use is 16 mm/day. If the irrigation efficiency is Reg.No/100%, solve for the frequency of irrigation such that the moisture content does not fall below 50% of the maximum available water.

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Reg-No=4974 Q#1 (a) In an agricultural area, the porosity and field capacity of the soil are measured as 46% and 39%, respectively. For a certain crop the permanent wilting point is 11% and the depth of the root zone is 1.2 m. The consumptive use is 16 mm/day. If the irrigation efficiency is Reg.No/100%, solve for the frequency of irrigation such that the moisture content does not fall below 50% of the maximum available water. (b) Solve for (a) the most economical trapezoidal canal section having boulder lining with the following data: discharge = Reg. No/min, rugosity coefficient = 0.025, side slope of canal = 2:1 (b) Allowable bed slope of the canal.
Transcribed Image Text:Reg-No=4974 Q#1 (a) In an agricultural area, the porosity and field capacity of the soil are measured as 46% and 39%, respectively. For a certain crop the permanent wilting point is 11% and the depth of the root zone is 1.2 m. The consumptive use is 16 mm/day. If the irrigation efficiency is Reg.No/100%, solve for the frequency of irrigation such that the moisture content does not fall below 50% of the maximum available water. (b) Solve for (a) the most economical trapezoidal canal section having boulder lining with the following data: discharge = Reg. No/min, rugosity coefficient = 0.025, side slope of canal = 2:1 (b) Allowable bed slope of the canal.
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