Q. On what factors Potential Evapotranspiration critically depends?

View solution

Q. On what factors Actual Evapotranspiration depends?

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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%.

View solution

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 _________

View solution

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.

View solution

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

View solution

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

View solution

Q. Which method is time-consuming and expensive?

View solution

Q. Which of the following is not an empirical method of determining consumptive use?

View solution

Q. The evapotranspiration rate is higher in light green vegetation than in dark green vegetation.

View solution

Q. The monthly consumptive use values for paddy are 26.69, 8.76, 14.38, 22.73, 21.29, 25.50 and 15.06 for the duration of month from June to July. What is the average daily consumptive use?

View solution

Q. Which of the following statement is wrong about consumptive use coefficient?

View solution

Q. What is the range of reflection coefficient for close-grained crops?

View solution

Q. Which method is widely used in India for the computation of consumptive use?

View solution

Q. The average value of Eₜ/Eₚ for citrus crops?

View solution

Q. The monthly consumptive use is given by _____________

View solution