Q3/ How many emitters, laterals and Manifolds needed to irrigate (100 m*100 m) cofffield with drip irrigation system that has 65% wetted area and 2.5 l/s pumping well as asource of irrigation if you know the crop spacing is (1.35 m * 1.5 m) and the net depth ofirrigation =64 mm, the irrigation interval is 8 days. Use the middle length layout in yoursolutionemitter.assumethedischarge=4lph.

To determine the number of emitters, laterals, and manifolds needed to irrigate a 100m x 100m corn…

Answered: Q3/ How many emitters, laterals and…

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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Ex 12-5: Farm is irrigated with irrigation interval 8 days, leaching depth in one irrigation 2.5 cm, effective porosity (u=0.05), the permissible depth of groundwater is 1.2m below soil surface. Depth of impervious layer 9.5m below drain, depth of drain 2m below soil surface, hydraulic conductivity Im/day. find the spacing between drains to maintain the groundwater within permissible depth. Radius of drain 10 cm.
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Using the results of the calibration test of the 8 x 20 cm drum seeder, determine the seeding rate (kg/ha) if Qmedis used. Row spacing is 40 cm. Ground wheel diameter is 50 cm. Discharge of one row per 10 revolutions of the ground wheel: Qlow = 16 gms, Qmed= 22 gms and Qhigh= 38 gms. Do not round off during computation, do not round your final answer, write all the decimals.
Compute the ponding time (in minutes) and cumulative infiltration at ponding (in centimetres) for a sandy clay loam soil of 25% initial effective saturation (Se) for rainfall intensities of 2 cm/h and 5 cm/h. Note: Calculate the results rounded to the second digit after the decimal point. Hint: A0=(1-Se)×0e
If the ratio between the length of the tape to its width is 45, the number of tapes used to irrigate a field 300 tapes, the irrigation time per tape is 55 minutes, and the available irrigation current is 30 L / sec, calculate the length of the tape and the design flow rate in units of M '/ hr if you know that the irrigation efficiency is% 70, the effective root zone depth is 1.5 m, the moisture depletion rate is 60%, and the water holding capacity is 1.3 mm / cm.
Surface irrigation method is the oldest irrigation method, and it is still considered the most favorable method Select one: True False
- A standard evaporaƟon pan at the site indicated a pan coefficient of 0.80 on the basis of calibraƟon against controlled water budgeting method. If this pan indicated an evaporaƟon of 72 mm in the week. estimate the volume of water evaporated for the 15 km2 lake in that week.
Q2/ How many emitters,laterals and Manifolds needed to irrigate (100 m*100 m) corn field with drip irrigation system that has 65% wetted area and 2.5 l/s pumping well as a source of irrigation. If you know the crop spacing is (1.35 m * 1.5 m) and the net depth of irrigation =64 mm, the irrigation interval is 8 days. Use the corner-corner layout in your solution.assume the emitter discharge = 8 lph. Draw the layout with details.
Pumping with a radius of 25 cm opened in an aquifer with an average thickness of 33 m with a free surfaceWhen the flow rate of 39.57416734 lt/sec is withdrawn from the well for a very long time, one of the pumping wells is 43 m and the otherThe water levels in the observation wells at a distance of 183 m are 30.66859298 m and 32.2787432 m, respectively.determined. The hydraulic conductivity of the aquifer (m/s) according to the data given in the Question 4 data sheet,the pumping well descent (m), optimum level descent (m) and optimum flow (lt/s)calculate.
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Q6//The farm shown in the figure is irrigated by furrow system: • FC=32% by vol. ,W P = 18% by vol. . PAD= 70% • Depth of root zone-100 cm • • • • Spacing between furrows = 80 cm The field is irrigated 2 days in week Total available discharge Qa= 60 Lps Discharge of one furrow.q=1.0 Lps Neglect any service area, calculate: a) length of one furrow and their total number b) number of furrows irrigated at the same time and number of irrigation groups c) application time of any group d) net irrigation depth el application efficiency 0.1% 288m ↑ 200m + 0.5%
O T In a furrow irrigation system, the following information is given Length of a furrow = 200 m Inflow = 1.5 l/s Advance equation = x=5+⁰.8 Intake equation=1-115.2t05,/ in l/hr/1 m and t in minutes Furrow spacing = 80 cm . . Find Irrigation time to achieve an average infiltration depth of 100 mm ||| فلاتر O إضافة شرح... Ali

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