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 1 of 2.
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)
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)
Khushi said:
6 years ago
Thanks for explaining @Badal.
(2)
Kalu charan behera said:
7 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=35%=35/100=0.35,
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=35%=35/100=0.35,
Permanent wilting point=15%=15/100=0.15,
So, (1.5/1)*80*(0.35-0.15)=12 cm,
Correct answer is 12 cm.
(1)
Tilahun. Eshetu said:
3 years ago
Nice, very helpful.
(1)
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)
Prasenjt said:
7 years ago
Here; Sp *d(fc-pwp).
(1)
Subha said:
8 years ago
@Mariya.
Here, dw means the depth of water zone. i.e., storage capacity of soil.
Here, dw means the depth of water zone. i.e., storage capacity of soil.
Fazeelat said:
1 decade ago
Would you please give me the solution step?
Animesh Mahanty said:
9 years ago
Thanks for the explanation.
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