The moisture content of soil in the root zone of an agricultural crop at certain stage is found to be 0.05. The field capacity of the soil is 0.15. The root zone depth is 1.1m. The consumptive use of crop at this stage is 2.5 mm/day and there is no precipitation during this peirod. Irrigation efficiency is 65%. It is intended to raise the moisture contant to the field capacity in 8 days through irrigation. The necessary depth of irrigation is

The moisture content of soil in the root zone of an agricultural crop

1.	The moisture content of soil in the root zone of an agricultural crop at certain stage is found to be 0.05. The field capacity of the soil is 0.15. The root zone depth is 1.1m. The consumptive use of crop at this stage is 2.5 mm/day and there is no precipitation during this peirod. Irrigation efficiency is 65%. It is intended to raise the moisture contant to the field capacity in 8 days through irrigation. The necessary depth of irrigation is
A.	115 mm
B.	169 mm
C.	200 mm
D.	285 mm
Answer» E.

Discussion

No Comment Found

Related MCQs

The culturable commanded area for a distributary is 2 108m . The intensity of irrigation for a crop is 40%. If kor water depth and kor period for the crop are 14 cm and 4 weeks, respectively, the peak demand discharge is
The two columns below show some parameters and their possible values. Parameters P Gross Command Area Q Permanent Wilting Point R Duty of canal water S Delta of wheat Value I 100 hectares/cumec II 6 C III 1000 hectares IV 1000 cm V 40 cm VI 0.12 Which of the following options matches the parameters and the values correctly?
The consumptive use of water for a crop during a particular stage of growth is 2.0 mm/day. The maximum depth of available water in the root zone is 60 mm. Irrigation is required when the amount of available water in the root zone is low. Frequency of irrigation should be
In a cultivated area, the soil has porosity of 45% and field capacity of 38%. For a particular crop, the root zone depth is 1.0 m, the permanent wilting point is 10% and the consumptive use is 15 mm/d. If the irrigation efficiency is 60%, what should be the frequency of irrigation such that the moisture content does not fall below 50% of the maximum available moisture?
On which of the canal systems, R.G. Kennedy, executive engineer in the Punjab Irrigation Department made his observations for porposing his theory on stable channels?
A sprinkler irrigation system is suitable when
A field was supplied water from an irrigation tank at a rate of 120 L/s to irrigate an area of 2.5 hectares. The duration of irrigation is 8 hours. It was found that the actual delivery at the field, which is about 4 km from the tank, was 100 L/s. The runoff loss in the field was estimated as 800 m . The application efficiency in this situation is
If duty (D) is 1428 hectares/cumec and base period (B) is 120 days for an irrigated crop, then delta (D) in meters is given by
The culturable commanded area for a distributary is 2 10
The moisture content of soil in the root zone of an agricultural crop at certain stage is found to be 0.05. The field capacity of the soil is 0.15. The root zone depth is 1.1m. The consumptive use of crop at this stage is 2.5 mm/day and there is no precipitation during this peirod. Irrigation efficiency is 65%. It is intended to raise the moisture contant to the field capacity in 8 days through irrigation. The necessary depth of irrigation is

Discussion

No Comment Found

Related MCQs

Reply to Comment