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

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

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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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
Q1: The water content at the field capacity is 27.2% by weight and it was 19% by weight for irrigation (wilting point), depth of the root zone is 0.92m and the apparent specific gravity is 1.3. Find: 1. The depth of water required to reach moisture in this soil to its field capacity. 2. The time required to irrigate 12 mishara in discharge equal to 75 €/s and 65% the efficiency of irrigation (Ea).
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 C
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Water is being pumped from a soil medium having an area of 100 hectares, due to which ground water table dropped 27.5 m below the ground surface to 40 m below the ground surface. If porosity and specific rentention of the soil is 0.48 and 0.18 respectively, then the change in ground water storage due to pumping in ha.m will be
What should be the frequency of irrigation?
please solve question 1, principles of Irrigation
An unconfined aquifer (porosity, n = 0.29) with a specific retention of 0.11 has an area of 130 miles². The water table dropped 5.88 ft during a recent drought. Compute the volume of water lost from the aquifer storage during the drought. Assume there was no appreciable recharge during the drought, and all other fluxes can be neglected.
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In an irrigated area 12 m³/s of water is diverted to a 0.32 km2 field area for four hours. The soil moisture measurement in the field done after irrigation showed that 0.4 m of water has been stored in the zone. The water application efficiency (correct to nearest decjmal) in this case is: 的。
Crops are grown in a field having soil, which has field capacity of 30% and permanent wilting point of 13%. The effective depth of root zone is 80 cm. Irrigation water is supplied when the average soil moisture drops to 20%. Consider density of the soil as 1500 kg/m³ and density of water as 1000 kg/m³. If the daily consumptive use of water for the crops is 2 mm, the frequency of irrigating the crops (in days), is
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