Q2-1/ An agricultural farm is cultivated by crops. Available data are: dR = 1.8 (m), A = 50 (Hectare), (wv)p=15% and (w)F = 32%. Compute volume of irrigation water required to be added to the farm in order to raise water content in porous soil of R. Z. from (wy)p% to (wy)F%. Note/ (Wy)add (Wy)F - (Wv)p ANSWER/ = (Wy)add = (Wy)F - (Wv)p = 17% (Wv)add = {(Vw)add/(Vt} x 100 (Vw)add = 153000 (m³ of irrigation water) required to be add.

Q2-1/ An agricultural farm is cultivated by crops. Available data are: dR = 1.8 (m), A = 50 (Hectare), (wv)p=15% and (w)F = 32%. Compute volume of irrigation water required to be added to the farm in order to raise water content in porous soil of R. Z. from (wy)p% to (wy)F%. Note/ (Wy)add (Wy)F - (Wv)p ANSWER/ = (Wy)add = (Wy)F - (Wv)p = 17% (Wv)add = {(Vw)add/(Vt} x 100 (Vw)add = 153000 (m³ of irrigation water) required to be add.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Q2-2/ An agricultural farm is cultivated by crops. Available data are: dr = 1.2 (m), A = 50 (Hectare), G = 1.25, Gs=2.7 and (wy) = 21.48 %. Compute values of the followings: (wy)s% and (dw)F. (Vw)s (m³ of water stored in the soil of R.Z. at its saturated condition). ANSWER/ (Wv)s = 53.7%, (Wv)d=21.48%, (Vw)s = 322200 (m³ of water stored in the soil of R.Z. at its saturation condition). (dw)F= 0.387 (m of water depth/each irrigation process)
During a month a lake with area = 3 duname., received 16 cm precipitation, and there was an infiltration 23 mm from the lake, what is the depression in storage?(by m^3)
A catchment has 4 sub areas (see table below). The annual precipitation andevaporation from each of the sub areas are given below. Assume that there is no change inthe groundwater storage on annual basis and calculate for the whole catchment the valuesof annual averageA. Precipitation (Ans. P ave = 1105.167 mm)B. Evaporation (Ans. E ave = 532.416 mm)C. What are the annual run-off coefficients for the subareas and for the totalcatchment area as a whole? (Ans.ratio = 0.508)
A catchment has four sub-areas. The annual precipitation and evaporation from each of the sub-areas are given below. Assume that there is no change in the groundwater storage on an annual basis and calcu- late for the whole catchment the values of annual averz ge Sub-area Area Annual precipitation Annual evaporation Mm? mm mm 10.7 1030 530 3.0 830 438 8.2 900 430 17.0 1300 600 A) 0.581 B) 0.158 C) 0.518 D) 0.851 ABCD © O O O
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。
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 decimal) in this case is:
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).
a municipality treats 15x10^6 gal/day of groundwater containing the following: CO2 =17.6 mg/L, Ca2+ = 80mg/L, Mg2+ = 48.8 mg/L, Na+ = 23mg/L, Alk (HCO3-) = 270 mg/L as CaCO3, SO4 2 =125mg/L and Cl- = 35mg/L. The water is to be softened by excess lime treatment. Assume that the soda ash is 90 percent sodium carbonate, and the lime is 85 percent weight CaO. Determine the lime and soda ash dosages necessary for precipitation softening (kg/day).
12m ^ 3/ sec of water is diverted to a 30 hectare field for 5 hours. Soil probing after irrigation showed that 0.4 m of water had been stored in the root zone. Water application efficiency in this case would be?
A discharge of 0.15 cumecs is supplied into a canal at the head and 0.1 cumecs is delivered to field having an area of 1.5 hac. The Irrigation is started at a moisture extraction level of 60% of the available moisture and then extends for 10 hours. Determine the following efficiencies: water conveyance, water application, water storage, and water distribution. The following information are known: effective depth of r.z. = 1.7 m, runoff loss in the field = 425 m3 , water penetration depth varies linearly from 1.7 m at the head end of the field to 1.1 m at the tail end, W.H.C. = 25cm/m depth of soil.
Q1 During a particular stage of the growth of a crop, consumptive use of water is 3.2 mm/day, and the PWP is 13.6 mm in terms of depth and 17% as a percentage. Find the irrigation frequency and depth of water to be applied, when the amount of water available in the soil is: (i) 10%, (ii) 20% (iii) 45 %, (iv) 80% and (v) 0% of the maximum depth of available water in the root zone. Assume irrigation efficiency to be 75%.
After how many days will you order irrigation in order to ensure healthy growth of crops, if the field capacity of soil is 29%, PWP is 11%, Density of soil is 1300 kg/m³, Effective RZ is 700 mm, daily Cu is 12 mm. For healthy growth, moisture content must not fall below 25% of the water holding capacity of soil.