Calculate the rates of seasonal consumptive use and periodic consumptive use during the two irrigation intervals and during the maturation period of a mustard crop of 120 days duration from the following data: (1) Mean soil water contents at sowing and at harvesting in the root zone are 20.5 and 14.5 percent respectively. Mean bulk density of the soil in the root zone is 1.50 g/cm³ Mean soil water contents immediately before and 2 days after the first irrigation of 6cm depth applied at 40 days after sowing are 15.1 and 19.9 percent respectively. (iv) Mean water contents immediately before and after the second irrigation of 6cm depth applied at 75 days after sowing are 14.3 and 19.0 percent respectively. The effective rainfall received by the crop during the first and second irrigation intervals and during the season are respectively 4.3cm, 4.8cm and 13.1cm. (vi) Potential evapotranspiration during the two-day period immediately after the first and second irrigations are 3.0mm and 3.5mm per day respectively. (vii) Rooting depth of the crop is 75cm. (ii) (iii)
Calculate the rates of seasonal consumptive use and periodic consumptive use during the two irrigation intervals and during the maturation period of a mustard crop of 120 days duration from the following data: (1) Mean soil water contents at sowing and at harvesting in the root zone are 20.5 and 14.5 percent respectively. Mean bulk density of the soil in the root zone is 1.50 g/cm³ Mean soil water contents immediately before and 2 days after the first irrigation of 6cm depth applied at 40 days after sowing are 15.1 and 19.9 percent respectively. (iv) Mean water contents immediately before and after the second irrigation of 6cm depth applied at 75 days after sowing are 14.3 and 19.0 percent respectively. The effective rainfall received by the crop during the first and second irrigation intervals and during the season are respectively 4.3cm, 4.8cm and 13.1cm. (vi) Potential evapotranspiration during the two-day period immediately after the first and second irrigations are 3.0mm and 3.5mm per day respectively. (vii) Rooting depth of the crop is 75cm. (ii) (iii)
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Calculate the rates of seasonal consumptive use and periodic consumptive use during the two
irrigation intervals and during the maturation period of a mustard crop of 120 days duration
from the following data:
(1)
Mean soil water contents at sowing and at harvesting in the root zone are 20.5 and
14.5 percent respectively.
Mean bulk density of the soil in the root zone is 1.50 g/cm³
Mean soil water contents immediately before and 2 days after the first irrigation of
6cm depth applied at 40 days after sowing are 15.1 and 19.9 percent respectively.
(iv) Mean water contents immediately before and after the second irrigation of 6cm
depth applied at 75 days after sowing are 14.3 and 19.0 percent respectively.
The effective rainfall received by the crop during the first and second irrigation
intervals and during the season are respectively 4.3cm, 4.8cm and 13.1cm.
(vi) Potential evapotranspiration during the two-day period immediately after the first
and second irrigations are 3.0mm and 3.5mm per day respectively.
(vii) Rooting depth of the crop is 75cm.
(ii)
(iii)
(v)
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