Civil Engineering - Irrigation - Discussion
Discussion Forum : Irrigation - Section 2 (Q.No. 34)
34.
The field capacity of a soil is 25%, its permanent wilting point is 15% and specific dry unity weight is 1.5. If the depth of root zone of a crop, is 80 cm, the storage capacity of the soil, is
Discussion:
17 comments Page 2 of 2.
Goora said:
7 years ago
@Kalu.
FC is 25%.
FC is 25%.
Tushar said:
6 years ago
The field capacity and moisture content at the time of irrigation are 27% and 19%. The apparent specific gravity 1.3 and root zone depth 100cm. Determine the time required to irrigate 2ha with a flow of 60 if water loss is 20%.
Can anyone answer this?
Can anyone answer this?
(1)
Khushi said:
6 years ago
Thanks for explaining @Badal.
(2)
Anil said:
6 years ago
For formula is .....(Yd/Yw)*d*(field capacity-permanent welting point).
Given data:-
Yd=1.5, Yw=1,
Depth zone=80 cm,
Field capacity=25%=25/100=0.25,
Permanent wilting point=15%=15/100=0.15,
So, (1.5/1)*80*(0.35-0.15)=12 cm,
Correct answer is 12 cm.
Given data:-
Yd=1.5, Yw=1,
Depth zone=80 cm,
Field capacity=25%=25/100=0.25,
Permanent wilting point=15%=15/100=0.15,
So, (1.5/1)*80*(0.35-0.15)=12 cm,
Correct answer is 12 cm.
(6)
Srb said:
3 years ago
Root zone of crops grown in sandy loam soil is 100 cm. The volumetric soil moisture contents at field capacity and permanent wilting point are 30 % and 5 %, respectively. The critical value of available soil water is 50 %. Then What is available moisture?
Can anyone answer this with the explanation?
Can anyone answer this with the explanation?
Tilahun. Eshetu said:
3 years ago
Nice, very helpful.
(1)
Sumit said:
2 years ago
For formula is
(Yd/Yw)*d*(field capacity-permanent welting point);
Given data:
Yd=1.5,
Yw=1,
Depth zone=80 cm,
Field capacity = 25% = 25/100 = 0.25,
Permanent wilting point = 15% = 15/100 = 0.15,
So, (1.5/1)*80*(0.25-0.15) = 12 cm,
The Correct answer is 12 cm.
(Yd/Yw)*d*(field capacity-permanent welting point);
Given data:
Yd=1.5,
Yw=1,
Depth zone=80 cm,
Field capacity = 25% = 25/100 = 0.25,
Permanent wilting point = 15% = 15/100 = 0.15,
So, (1.5/1)*80*(0.25-0.15) = 12 cm,
The Correct answer is 12 cm.
(6)
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