Q. Total transpiration about 95% occurs during the day alone.

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Q. On which factor does the transpiration loss also depends on?

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Q. On what factor does transpiration ratio depends on?

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Q. In transpiration ratio what type of crop is considered to be weighed, for mass of dry matter produced?

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Q. Given information is that total mass of water required for the growth of a plant is 285 kgs, and mass of the marketed crop is 19 kgs. Find the transpiration ratio?

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Q. A crop is being tested in the lab to its loss due to transpiration. Given that initial weight of instrument is 100 kgs, and final mass of instrument is 150 kgs. The amount of water added during full growth of plant is 70 kgs. Find the loss due transpiration when the method used is phytometer method?

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Q. By what number should the value from the phytometer method be multiplied when it comes to obtain possible field results?

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Q. Which type of soil has less ratio of AET/PET than the other?

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Q. On what factors Potential Evapotranspiration critically depends?

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Q. On what factors Actual Evapotranspiration depends?

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Q. Which type of method is adopted for research studies on crops?

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Q. Which of the following statement is not correct about Effective rainfall?

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Q. What is the field irrigation requirement (FIR)?

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Q. What is the correct representation for the calculation of NIR?

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Q. Determine the Gross irrigation requirement for an irrigation system if consumptive use of crop is 200 cm in terms of depth and the rainfall excess is 30 cm. assume water application efficiency = 50% and conveyance efficiency = 90%.

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Q. An outlet irrigates an area of 40 ha. The discharge required at this outlet to meet the evapotranspiration requirement of 40 mm occurring uniformly in 40 days neglecting other field losses is _________

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Q. The moisture holding capacity of the soil in a 100-hectare farm is 20 cm/m. The root zone depth of the crop is 1.0 m and peak rate to moisture use is 5 mm/day. The field is to be irrigated when 40% of the available moisture in the root zone is depleted. Calculate the frequency of irrigation.

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Q. What is the correct formula for Gross irrigation requirement?

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Q. Which formula is extensively used for estimating seasonal water requirements?

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Q. Which method is time-consuming and expensive?

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