Description : About 50-75% of soil erosion by wind is carried out by
Last Answer : Ans.Saltation
Description : The most popular mechanical measure to control soil erosion and conserve is
Last Answer : Ans.Contour Bunding
Description : The cropping system beneficial to prevent soil erosion due to winds is
Last Answer : Ans.Strip cropping
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 : 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 : Detachment and transportation of top soil particles by wind and or by water is known as.
Last Answer : Ans.Soil erosion
Description : Vertical movement of water or downward movement of water from different soil layer is called as
Last Answer : Ans.Percolation
Description : Crops, which protect another crops from trespassing of animals or restrict the speed of wind and are mainly grown as border
Last Answer : Ans.Border/Guard Crops
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 : Give one difference between the following: (i) Khadar soil and Bangar soil. (ii) Sheet erosion and Wind erosion. -Geography
Last Answer : Bhangar Khadar (1) It belongs to Old alluvium. It belongs to New alluvium. (2) It is less fertile It is more fertile (3) It is non porous, claying and loamy. It is calcareous clay. (4) It is ... 1) It occurs in desert areas. (2) Agent of denudation is running water (2) Agent of denudation is wind.
Description : Which one of the following forces leads to maximum soil erosion in plains? (a) Wind (b) Glacier (c) Running water (d) Earthquake
Last Answer : Which one of the following forces leads to maximum soil erosion in plains? (a) Wind (b) Glacier (c) Running water (d) Earthquake
Description : Wind Erosion will be higher from? a. Clay Soil b. Sandy Soil c. A barren sandy soil d. Loam Soil e. None of these
Last Answer : c. A barren sandy soil
Description : In wind erosion floating of less than 0.1 mm soil particle is observed in — stage a. Saltation b. Surface creep c. Suspension d. None of these
Last Answer : c. Suspension
Description : The removal of top soil by water or wind is called (1) Soil wash (2) Soil erosion (3) Soil creep (4) Silting of soil
Last Answer : (2) Soil erosion
Description : Capillary movement of water is complemented by
Last Answer : Ans.Root extension
Description : Downward movement of nutrients and salts from the root zone with the water
Last Answer : Ans.Leaching
Description : Saltation is a process of _____ erosion a. Water b. Wind c. Both a & b d. None of these
Last Answer : b. Wind
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 : 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 : 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 moisture content of a soil at which plants permanently wilt and will not recover.
Last Answer : Ans.Permanent wilting point (PWP)
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 : 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
Last Answer : Ans.Infiltration
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 : First entry of water from the upper layer of soil is known as
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 : 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 branch of agricultural science which deals with principles and practices of soil, water and crop management.
Last Answer : Ans.Agronomy
Description : A diffusive process by which liquid water in the form of vapour is lost in the atmosphere
Last Answer : Ans.Evaporation
Description : The process of determining when to irrigate and how much water to apply is termed as
Last Answer : Ans.Irrigation scheduling
Description : A process of treatment of stalks for final fibre extraction is termed as
Last Answer : Ans.Retting 18. Cotton
Description : A process of removal/tipping of apical buds of Chickpea is termed as
Last Answer : Ans.Nipping
Description : Hydrothermal process of rice which saves vitamin B12?
Last Answer : Ans.Parboiling 2. Wheat