Correct option is B
The duty (D) of water at the field level is calculated using D = [8.64 B / Δ] where B is the base period in days, and Δ is the delta in meters.
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Question
For the irrigation of a crop, the base period B (days) and delta Δ (meters) are related to the duty D in ha/(m³/s) at the field as:
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- 1)When E-evaporation, T-transpiration, B-water needs for building up of plant body: CU-consumptive use, ET-evapotranspiration, WR-water requirement, GW-ground water, and ER-effective rainfall, then irrigation requirement (IR) of an individual crop at field head is given by the equation:
- 2)Which is not a method of field drainage?
- 3)In case of wheat, if water is available for only one irrigation, then it should be applied at –
- 4)Which method has the highest water use efficiency
- 5)
Rainfed area in India presently constitutes about ______% of the net cultivated area.
- 6)
The criteria used for classification of irrigation water includes
- 7)
Water use efficiency is more when
- 8)
Tamil Nadu with 6% population has only ____ water resources.
- 9)
Dry seeding of rice with supplemental irrigation is called
- 10)
Identify the incorrect statement about irrigation
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Similar Questions
- 1)When E-evaporation, T-transpiration, B-water needs for building up of plant body: CU-consumptive use, ET-evapotranspiration, WR-water requirement, GW-ground water, and ER-effective rainfall, then irrigation requirement (IR) of an individual crop at field head is given by the equation:
- 2)Which is not a method of field drainage?
- 3)In case of wheat, if water is available for only one irrigation, then it should be applied at –
- 4)Which method has the highest water use efficiency
- 5)
Rainfed area in India presently constitutes about ______% of the net cultivated area.
- 6)
The criteria used for classification of irrigation water includes
- 7)
Water use efficiency is more when
- 8)
Tamil Nadu with 6% population has only ____ water resources.
- 9)
Dry seeding of rice with supplemental irrigation is called
- 10)
Identify the incorrect statement about irrigation
