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CSS :: Soil Science


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31.  A = RKLSCP denote universal soil loss equation in which K is equal to:
A. Soil credibility factor B. Soil productivity factor
C. Soil leaching factor D. Crop management factor

32.  Absorbed hydrogen and aluminium are largely responsible for:
A. Soil acidity B. Soil alkalinity
C. Neutralinity D. None of the above

33.  Absorption of ions in plants occurring with the aid of metabolic energy is termed:
A. Passive absorption B. Active absorption
C. Metabolic absorption D. Mass flow absorption

34.  According to "Universal Soils Loss equation" the factors on which ration of erosion depend are:
A. Rainfall, soil credibility and slope B. Rainfall, soil credibility, slope length, slope gradient, crop management, erosion control practice
C. Rainfall, wind velocity, crop management D. Soil credibility, soil type, crop management

35.  According to land capability classification, the soils, which are not suitable for crop cultivation, belong to:
A. Class I B. Class III
C. Class IV D. Class VIII

36.  According to the carrier hypothesis the specific carriers are present on:
A. Plasma lemma B. Tonoplast
C. Endoplasmic reticulum D. Mitochondria

37.  According to U.S.D.A. soil classification, the size of fine sand should be in between:
A. 0.01-0.1 mm B. 0.1-0.25 mm
C. 0.25-0.5 mm D. 0.001-0.0001 mm

38.  Acid soils can be reclaimed by:
A. CaCO3 B. H2SO4
C. Ca SO4.2H2O D. HNO3

39.  Active soil forming factors would include:
A. Vegetaion and topography B. Time, topography and climate
C. Time and vegetation D. Vegetation and climate

40.  Addition of the following material makes it possible to take good crop in sodic soil:
A. FYM B. Gree manure
C. Gypsum D. All of these




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