Description : A diffusive process by which liquid water in the form of vapour is lost in the atmosphere
Last Answer : Ans.Evaporation
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 : Biosphere refers to - (1) the area of the land inhabited by living organism (2) the part of ocean inhabited by plants and animals (3) the portion of the earth, including the oceans ... land, the soil and the atmosphere inhabited by living organisms (4) the atmosphere surrounding the living organisms
Last Answer : (3) the portion of the earth, including the oceans, the land, the soil and the atmosphere inhabited by living organisms Explanation: The biosphere is the global ecological system integrating all living beings ... up of the parts of Earth where life exists. It is the worldwide sum of all ecosystems.
Description : Biosphere refers to (1) the area of the land inhabited by living organism (2) the part of ocean inhabited by plants and animals (3) the portion of the earth, including the oceans, the land, the soil and the atmosphere inhabited by living organisms (4) the atmosphere surrounding the living organisms
Last Answer : the portion of the earth, including the oceans, the land, the soil and the atmosphere inhabited by living organisms
Description : The moisture content of a soil at which plants permanently wilt and will not recover.
Last Answer : Ans.Permanent wilting point (PWP)
Description : Which is accumulated in the leaves of water stressed plants
Last Answer : Ans.ABA
Description : Name the process in plants where water is lost as water vapour. : -Biology
Last Answer : Transpiration is the process when plants loose water as vapour.
Description : What are the types of soil movement in the process of wind erosion?
Last Answer : Ans.Saltation, Suspension and Surface creep
Description : Supercharging is the process of a. supplying the engine with air at a density greater than the density of the surrounding atmosphere b. providing forced cooling air c. injecting excess fuel d. raising the exhaust pressure
Last Answer : ANSWER a. supplying the engine with air at a density greater than the density of the surrounding atmosphere
Description : One of the purposes of sub-cooling the liquid refrigerant is to (a) reduce compressor overheating (b) reduce compressor discharge temperature (c) increase cooling effect (d) ensure that only liquid and not the vapour enters the expansion (throttling) valve
Last Answer : Ans: d
Description : Detachment and transportation of top soil particles by wind and or by water is known as.
Last Answer : Ans.Soil erosion
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 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 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 flow of excess water from the field after saturation of soil.
Last Answer : Ans.Runoff
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 : A branch of agricultural science which deals with principles and practices of soil, water and crop management.
Last Answer : Ans.Agronomy
Description : The most popular mechanical measure to control soil erosion and conserve is
Last Answer : Ans.Contour Bunding
Description : About 50-75% of soil erosion by wind is carried out by
Last Answer : Ans.Saltation
Description : A period in which the available soil moisture is enough to meet the evapotranspiration requirement of dry land crops
Last Answer : Ans.Length of growing period
Description : Which of the following is a method of indirect measurement of soil moisture?
Last Answer : Ans.Neutron moisture meter
Description : Soil moisture content is determined by
Last Answer : Ans.Tensiometer (at 0.85 bar)
Description : Soil crusting reduces
Description : The cropping system beneficial to prevent soil erosion due to winds is
Last Answer : Ans.Strip cropping
Description : Which of the following rotations is likely to leave soil richer in organic matter?
Last Answer : Ans.Maize – Oats - Clovers
Description : Potato crop favours the soil for best growth
Last Answer : Ans.Sandy loam soil
Description : The best soil for cultivation of cotton
Last Answer : Ans.Black cotton soil
Description : Most suitable soil for groundnut cultivation
Description : Best soil for cultivation of chickpea?
Last Answer : Ans.Light alluvial soil (a loose and well aerated soil)
Description : Rice varieties suitable for Saline-alkaline soil are
Last Answer : Ans.CSR-10, CSR-13, CSR-27
Description : Anaerobic environment in rice soil is responsible for gaseous loss of fertilizer nitrogen by
Last Answer : Ans.Denitrification
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 : The tillage referred as no tillage in which the crop is planted in unprepared soil
Last Answer : Ans.Zero tillage
Description : An ideal condition of soil for crop growth?
Last Answer : Ans.Seed-bed
Description : The optimum range of available soil moisture for convenient and effective ploughing
Last Answer : Ans.50-75%
Description : The tillage operation mainly aims to break, open and turn the soil
Last Answer : Ans.Primary/tillage
Description : The good physical condition of soil after tillage is
Last Answer : Ans.Tilth
Description : The mechanical manipulation of the soil is k/s as
Last Answer : Ans.Tillage
Description : Generally, the third row of crop is removed or growing of crop in pair row and the third row is escaped with an object to conserve the soil moisture in Dryland areas?
Last Answer : Ans.Paired row Crops
Description : Such crops are grown to conserve the soil moisture through their ground covering foliage?
Last Answer : Ans.Mulch Crops
Description : A close-growing crop, grown primarily to improve and protect the soil from erosion through their ground covering foliage and/or rootmats between periods of regular crop production?
Last Answer : Ans.Cover Crops
Description : Alkaloid content present in sorghum leaves
Last Answer : Ans.HCN (Dhurin alkaloid)
Description : Maize crop leaves show red and purple colour due to deficiency of
Last Answer : Ans.Phosphorus (P) 4. Sorghum/Jowar
Description : The detrimental effect of one of higher plants on other higher plants is known as
Last Answer : Ans.Allelopathy
Description : Mustard crop planted at a spacing of 50 x 20 cm will have _______ plants/ha.
Last Answer : Ans.1,00,000
Description : The CAM Plants are
Last Answer : Ans.Pineapple, khajur, cactus, sisal.
Description : The C4 Plants are
Last Answer : Ans.Maize, Sorghum, Bajra, Sugarcane, Millets.
Description : The C3 Plants are
Last Answer : Ans.Rice, Wheat, Barley, Pea, Gram, Mustard and Rye, Cotton, Arhar, Soybean, Sunflower, Lentil, Sugarbeet, Tomato etc.