Q.1 As increase in age of animal nutrient content of dung_________.
increases decreases unaffected
Q.2 Which crop is most suitable for green manuring?
Dhaincha Sunhemp Cowpea
Q.3 Equivalent acidity (lime lost) of Urea is_________.
110 128 80
Q.4 Mycorrhiza is most suitable for the absorption of______________.
N P K
Q.5 Which growth regulators is used as anti transparent?
Abcisic Acid Cytokinins gibberlines
Q.6 In India, which is not soil conservation Research Demonstration and Training Centre?
Dehradun Kota Udaipur
Q.7 How many Central Soil and water conservation Research Centers are serving in India?
9 8 20
Q.8 The size of particles for saltation ranges___________.
0.01 – 0.05 mm 0.1 – 0.2 mm 0.1- 0.5 mm
Q.9 Which is a dominant type of mechanism responsible for soil erosion?
Suspension Saltation Surface creep
Q.10 Critical wind velocity is known as__________.
minimum fluid threshold velocity maximum fluid threshold velocity balance fluid threshold velocity
Q.11 Which is most harmful stage of water erosion?
Sheet Erosion Rill Erosion Gully Erosion
Q.12 Universal soil loss equation was given by_______.
Wischmeir and Smith Ramamurthy Thompson and Way
Q.13 Bench terracing is practiced on slopes ranging_________.
10.-20% 16-33% 15-30%
Q.14 At 0˚C the value of dissolved oxygen is_______.
14.6 mg/lit. 15.2 mg/lit 11.3 mg/lit
Q.15 Which heavy metal accumulates in soil by the regular use of phosphatic fertilizers?>
Cu Pb Cd
Q.16 Acid rain is mainly due to__________.
Oxides of sulphur Oxides of nitrogen Both
Q.17 Which solid component has highest total charge and surface area?
Vermiculite Montmorillonite Illite
Q.18 Which is not a Chemical indicator?
Crusting pH Salinity
Q.19 Which ion is responsible for the formation of black alkali soils?
Cl S Na
Q.20 The process of breakdown of H- clay under alkaline condition is known as________.
alkalinization Solonization Solodization
Q.21 Which state have maximum area under salt affected soils?
Gujarat Rajasthan UP
Q.22 Which salts are dominat in saline soil?
Na K Ca
Q.23 Which salts are dominat in Alkali soil?
Q.24 Ion responsible for dispersion of soil colloid is_________.
Q.25 In which form the Na will leach down when gypsum applied to alkali soils?
Na2CO3 Na2SO4 Na2CO3
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