Description : The moisture deficit condition, results when the amount of water vapour available in the soil is not sufficient to meet the demand of potential evapo-transpiration
Last Answer : Ans.Drought
Description : The chemicals used for sett treatment of sugarcane
Last Answer : Ans.Agallal and Areton
Description : A system of tillage in which organic residues are not inverted into the soil and used as a protective cover against erosion and evaporational losses of soil moisture?
Last Answer : Ans.Conservation tillage or stubble mulch tillage
Description : Chemicals which retard transpiration rate called
Last Answer : Ans. Anti-transparent
Description : Interception losses are due to (i) Evaporation (ii) Transpiration (iii) Stream flow The correct answer is (A) Only (i) (B) (i) and (ii) (C) (ii) and (iii) (D) (i), (ii) and (iii)
Last Answer : Answer: Option A
Description : Detachment and transportation of top soil particles by wind and or by water is known as.
Last Answer : Ans.Soil erosion
Description : What is the concentration of solution in ppm if 2 kg of 2,4-D is mixed with 1000 lit of water?
Last Answer : Ans.2000
Description : Which is accumulated in the leaves of water stressed plants
Last Answer : Ans.ABA
Description : Water harvesting in situ is known as
Last Answer : Ans.Runoff farming (VII) Dryland Agriculture
Description : Salt content in irrigation water evaluated as best quality
Last Answer : Ans.0.2 to 0.5 g/lt
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 : 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 period when water requirement is maximum is called as
Last Answer : Ans.Critical stages of water requirement
Description : Water requirement of maize and groundnut are
Last Answer : Ans.50-80 cm
Description : Water requirement of cotton crop
Last Answer : Ans.70-130 cm
Description : Water requirement of sugarcane
Last Answer : Ans.150-250 cm
Description : Water requirement of wheat, sorghum, soybean and tobbaco are
Last Answer : Ans.45-65 cm
Description : Water requirement of rice is
Last Answer : Ans.90-250 cm
Description : The consumptive use of water is equal to
Last Answer : Ans.ET + Mw
Description : The quantity of water needed for normal crop growth and yield in a period of time to a place and may be supplied by precipitation or by irrigation or by both.
Last Answer : Ans.Water requirement of a crop
Description : The process in which soil water lost from leaves of plants in the form of vapour and enters the surrounding atmosphere.
Last Answer : Ans.Transpiration
Description : A diffusive process by which liquid water in the form of vapour is lost in the atmosphere
Last Answer : Ans.Evaporation
Description : Capillary movement of water is complemented by
Last Answer : Ans.Root extension
Description : When water is held tightly as thin film around soil particles by adsorption forces and flows at gravity of > -31 bar, is called
Last Answer : Ans.Hygroscopic water
Description : The water, retained by the soil in capillary pores (micropores), against gravity (-1/3 to - 31 bar) by the force of surface tension
Last Answer : Ans.Capillary water
Description : The water, that moves downward freely under the influence of gravity (< 1/3 bar) beyond the root zone
Last Answer : Ans.Gravitational water
Description : The amount of soil moisture or water content held in soil after excess water has drained away is called
Last Answer : Ans.Field capacity (FC)
Description : The water content between Field capacity (-1/3 bar) to PWP (-15 bar) is called
Last Answer : Ans.Available water
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 : Discharge rate of water per dripper is
Last Answer : Ans.1-4 litre/hrs
Description : Micro irrigation method, in which water is applied as drop form through emitters
Last Answer : Ans.Drip method
Description : The rate of water delivery in sprinkler system is
Last Answer : Ans.>1000 litre/hrs.
Description : Micro irrigation method, in which water is applied as spray
Last Answer : Ans.Sprinkler method
Description : The most common water flow measuring device which measures water flow in open conduit is
Last Answer : Ans.Parshall/Venturi flume
Description : Venturi meter is used to measure water, if
Last Answer : Ans.Water flow from the pipe
Description : For measuring uniform flow of water, weirs used are
Last Answer : Ans.Rectangular and Trapezoidal weir
Description : Volumetric method of water measurement are
Last Answer : Ans.Furrows, Sprinklers and Drippers
Description : The process of determining when to irrigate and how much water to apply is termed as
Last Answer : Ans.Irrigation scheduling
Description : The quantity of water (gm) necessary for a plant to produce 1 kg of dry matter is known as
Last Answer : Ans.Transpiration coefficient
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 : The total depth of water (cm) required y a crop during its duration in the field
Last Answer : Ans.Delta
Description : Volume or quantity of water required for irrigation to bring a crop to maturity
Last Answer : Ans.Duty of water
Description : Downward movement of nutrients and salts from the root zone with the water
Last Answer : Ans.Leaching
Description : The flow of excess water from the field after saturation of soil.
Last Answer : Ans.Runoff
Description : Horizontal flow of water in irrigation channels or through canals is known as
Last Answer : Ans.Seepage
Description : Vertical movement of water or downward movement of water from different soil layer is called as
Last Answer : Ans.Percolation
Description : First entry of water from the upper layer of soil is known as
Last Answer : Ans.Infiltration
Description : The artificial application of water to supply moisture essential to plant growth is termed as
Last Answer : Ans.Irrigation
Description : The deep water rice are
Last Answer : Ans.Punkaj, Jagannath
Description : A branch of agricultural science which deals with principles and practices of soil, water and crop management.
Last Answer : Ans.Agronomy