Ex 4-3: If the crop consumptive use in Ex(4-2) is 18 m³/donum/day,calculate:A. Irrigation interval in daysB. Field water duty assuming 40% losses during irrigationC. Amount of added water to irrigate one donum.

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Answered: Ex 4-3: If the crop consumptive use in…

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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Q4-5/ If the Consumptive Use of the plants cultivated in the farm is 16 (mm of water depth/day) during NOVEMBER, depth of Roots Zone is 0.8 (m) and Available moisture content is 12%. Find the Irrigation Cycle of the Farm Ic (day/ each Irrigation process). ANSWER/ Ic = 6 (d/each irrigation process).
Read the question carefully and give me right solution according to the question. A pump is required to deliver water from a stream to an irrigation system. The net irrigation requirement has been computed to be 5 mm/day during the peak demand period in July. The size of the field to be irrigated is 20 ha. It is expected that, on the average, the pump will be available for 12 hours each day, five days per week. The irrigation interval is one week. Assuming the farm irrigation efficiency to be 80%, compute pump capacity required in m3 /sec and US gpm.
B- Water is released at the rate of 12 cumec at the head of a canal. If duty at the field is 1250 hectares/cumec and loss of water in transit is 25%, find the area of the land that can be irrigated.
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Q2-3/ An agricultural farm is cultivated by crops. Available data are: dr = 1.2 (m), A = 50 (Hectare), G=1.35, Gs=2.7.and (wy)% = 15%. ¿Compute values of (dw)F ANSWER/ (Wv)s=50%, (wv)d = 15%, (Wv)F = 35% (dw)F= 0.42 (m of water depth/ one Irrigation process).
In line with the desk (associated with the corn), if irrigation performance is 40 percent and overall performance ratio is 70 percentage, determine ultimate irrigated region Growth stage Time (day) ET (mm/day) Available water (m³) Plant establishment Chlorophyll Flowering Product formation 27 3.6 130000 0.4 32 6.4 240000 0.4 30 9.5 260000 1.5 38 7.2 370000 0.5
Gram crop has a kor period of 18 days and kor depth of 12 cm. The duty of the gram is A 520 ha/cumec B C D 790 ha/cumec 960 ha/cumec 1296 ha/cumec
Water is delivered from a reservoir to an irrigation project through an earthen canal at a rate of flow of 5 cumecs. The seepage losses in canal were estimated to be 0.1 cumecs/km, length of canal is 10 km, area of project is 1000 donum, and the depth of water to be applied and stored in the field is 10 cm. What is the application efficiency taking into account that water is applied on the field one day for irrigation? Assume that net area equal to gross area and tg ta. %3D
Given a soil irrigated with water, the irrigation efficiency = 70%, water losses are run off and deep percolation divided in the ratio of and respectively, LR = 0.15, irrigation area 15 F dunam irrigated in one day every week, plant consumptive use rate is 7 mm/day calculate the required gross discharge (L/sec) and the depth of losses( mm).
Ex4-5: Calculate the amount of needed water to irrigate farm of 160 donum area through the duration 1st April to 31th August if the annual consumptive use 0.9 m, the percentage of consumptive use through these month and effective rainfall are illustrated in table below assume 48% irrigation efficiency and 20% conveyance losses) Month Consumption percentage% Effective rainfall, cm April 8.6 0.8 May 9.3 1.2 June 13.2 3.5 July 18.3 3.1 August 17.6 2.1
A rice crop is to be irrigated in a field covering an area of 2400 ha, the duty and base period of rice are given as 860 ha/ cumec and 120 days respectively. The volume of water required in the field is nearly
1. One thousand two hundred and fifty cubic meters of water was delivered to a 10 ha farm for the month of June in which the consumptive use is estimated at 8 mm/day. The effective rainfall for the period was 150 mm. What is the irrigation efficiency? field tilain noint

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Ex 4-3: If the crop consumptive use in Ex(4-2) is 18 m³/donum/day,calculate: A. Irrigation interval in days B. Field water duty assuming 40% losses during irrigation C. Amount of added water to irrigate one donum.