Description : The consumptive use of water for a crop a. Is measured as the volume of water per unit area b. Is measured as depth of water on irrigated area c. May be supplied partly by precipitation and partly by irrigation d. All the above
Last Answer : d. All the above
Description : The ratio of the crop yield to the total amount of water used for irrigation is called, measured in kg/ha-cm is
Last Answer : Ans.Water use efficiency
Description : Volume or quantity of water required for irrigation to bring a crop to maturity
Last Answer : Ans.Duty of water
Description : The percentage of applied irrigation water stored in the soil and made available for consumptive use by the crop
Last Answer : Ans.Irrigation Efficiency
Description : Irrigation is applied to the crop at
Last Answer : Ans.50%soil moisture depletion stage
Description : “Relative land area under sole crop required to produce the same yield as obtained under a mixed or intercropping system at the same level of management is termed as
Last Answer : Ans.Land equivalent ratio (LER)
Description : Forage yield of oat crop is
Last Answer : Ans.400 - 450 qt/ha 24. Potato
Description : Forage yield of berseem crop is
Last Answer : Ans.800 - 1100 qt/ha
Last Answer : Ans.800 - 1000 qt/ha 22. Lucerne/Alfalfa
Description : Salinization occurs when the irrigation water accumulated in the soil evaporates, leaving behind salts and minerals. What are the effects of salinization on the irrigated land? a. It greatly increases the crop ... c. It raises the water table d. It fills the air spaces in the soil with water
Last Answer : b. It may lead to crop yield loss
Description : Potato crop favours the soil for best growth
Last Answer : Ans.Sandy loam soil
Description : Optimum temperature for good rice crop growth is
Last Answer : Ans.30-320C
Description : An ideal condition of soil for crop growth?
Last Answer : Ans.Seed-bed
Description : What is the Critical Period of Crop-Weed Competition for sugarcane?
Last Answer : Ans.30-120 DAS
Description : What is the Critical Period of Crop-Weed Competition for Upland rice condition?
Last Answer : Ans.Entire period of crop growth
Description : What is the Critical Period of Crop-Weed Competition for transplanted rice?
Last Answer : Ans.30-45 DAS
Description : The length of growing period, suitable for growing only a single dry land crop
Last Answer : Ans.14 weeks
Description : Change in normal crop planning to meet weather abnormalities is termed as
Last Answer : Ans.Contingent planning
Description : One crop variety grown alone in pure stands at normal density in a field
Last Answer : Ans.Sole cropping
Description : Which is not an adverse effect of irrigation? (a) Irrigation changes cropping pattern. (b) Water intensive crops are grown in dry areas. (c) Salinization of soil (d) Increase in crop yield.
Last Answer : (c) Salinization of soil
Description : The ratio between marketable crop yield and water used in evapotranspiration is known as– 1) Field water use efficiency 2) Economic irrigation efficiency 3) Consumptive use efficiency 4) Water use efficiency
Last Answer : 1) Field water use efficiency
Description : Farmers in a particular region were concerned that pre-mature yellowing of leaves of a pulse crop might cause decrease in the yield. Which treatment could be most beneficial to obtain maximum ... yellow leaves and spraying the remaining green leaves with 2, 4, 5-trichlorophenoxy acetic acid
Last Answer : (a) Application of iron and magnesium to promote synthesis of chlorophyll
Description : Salt content in irrigation water evaluated as best quality
Last Answer : Ans.0.2 to 0.5 g/lt
Description : What will be CPE value when irrigation is scheduled at 0.8 IW/CPE with 6.0 cm depth of irrigation water?
Last Answer : Ans.7.5 cm or 75 mm
Description : The saving of water in sprinkler and drip irrigation methods as compared to surface irrigation methods
Last Answer : Ans.25-50%and 50-70%water, respectively.
Description : Micro irrigation method, in which water is applied as drop form through emitters
Last Answer : Ans.Drip method
Description : Micro irrigation method, in which water is applied as spray
Last Answer : Ans.Sprinkler method
Description : Horizontal flow of water in irrigation channels or through canals is known as
Last Answer : Ans.Seepage
Description : Irrigation project covered < 2,000 ha of CCA
Last Answer : Ans.Minor irrigation project
Description : Irrigation project covered 2,000 to 10,000 ha of CCA
Last Answer : Ans.Medium irrigation project
Description : Irrigation project covered >10,000 ha of catchments command area (CCA)
Last Answer : Ans.Major irrigation project
Description : Which irrigation method has highest irrigation efficiency?
Description : Drip Irrigation method is also known as
Last Answer : Ans.Trickle irrigation
Description : Drip Irrigation is discovered at
Last Answer : Ans.Israel
Description : Pressure, applied in sprinkler irrigation system
Last Answer : Ans.>2.5 bar
Description : Irrigation method, suitable for undulating land, sandy soils and Vegetable and fruit crops
Description : Most common method of surface irrigation to irrigate groundnut and pulses
Last Answer : Ans.Check basin
Description : Irrigation method suitable for lowland rice and jute
Last Answer : Ans.Flooding
Description : Life saving irrigation is also known as
Last Answer : Ans.Contingency irrigation
Description : Most critical stages for irrigation of tobacco is
Last Answer : Ans.Topping
Description : Most critical stage for irrigation in potato is
Last Answer : Ans.25%tuber formation stage
Description : The most critical stage of sugarcane for irrigation is
Last Answer : Ans.Formative stage (60-130 days after planting)
Description : The critical stages for irrigation in Rapseed and mustard are
Last Answer : Ans.Rosette stage and Siliqua formation stage 16. Safflower
Description : The most suitable irrigation method for groundnut
Last Answer : Ans.Check basin method
Description : The main critical stage of groundnut for irrigation
Last Answer : Ans.Flowering stage, Pegging stage and Pod formation stage
Description : Critical stage for irrigation in barley
Last Answer : Ans.Active Tiplering Stage (30–35 DAS)
Description : The most critical stages for irrigation in maize
Last Answer : Ans.Silking stage.
Description : The most important critical stage of rice for irrigation
Last Answer : Ans.Tillering to flowering stage
Description : Sustainability Yield index value lies between
Last Answer : Ans.0 to +1
Description : Sugar yield from sugarcane is
Last Answer : Ans.6-10%from juice