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

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ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Weight-Volume relationships

Weight is defined as the quantity of matter contained in a body. Weight can also be defined as the force acting on a body due to gravity. Mathematically, weight can be defined as-

Question

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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