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MCQs 1: Widely spread saprophytic fungi is________________________?

Basidiomycetes Ascomycetes Endospore None of the above
Answer Explanation

MCQs 2: Which compound decay slowly______________________?

Amino acid Lignin fats Cellulose
Answer Explanation

MCQs 3: Who gave the defination of humic acid ?

Gapon Felbeek Neir Liekig
Answer Explanation

MCQs 4: Extraction of humic substance can be done by______________________?

NaOH NH4Cl NH4OH None of the above
Answer Explanation

MCQs 5: The complex fertilizer Nitrophos available in the market contains_____________________?

25%N & 23% P2O3 46%N & 23% P2O3 23%N & 23% P2O3 None of the above
Answer Explanation

MCQs 6: Radiation can be detected by the blankening of photographic film or by using___________________?

Ratio autoanalyser GM counter Neutron probe Dosimeter
Answer Explanation

MCQs 7: Nitrification is the microbial conversion of____________________?

NH nitrogen the NO3 nitrogen in soil NO2 to NO3 nitrogen in soil NO3 nitrogen to NH4 + in soil None of the above
Answer Explanation

MCQs 8: The exact chemical formula of DAP fertilizer is___________________?

(NH2) HPO4 NH4H2PO4 NH4H2PO4 Both a & c
Answer Explanation

MCQs 9: According to WAPDA, the ECe of the salt free soil should remain__________________?

< 4 dsm-1 Equal to 4 dsm-1 4-8 dsm-1 None of the above
Answer Explanation

MCQs 10: The EC: SAR and RSC values suggested by WAPDA for 3rd class irrigation water(C,S,R,) are____________________?

ECi:<1.5, SAR < 10 & RSC< 2.5 ECi:>1.5, SAR > 10 & RSC> 2.5 ECi:>1.5, SAR 2.5 Both a & b
Answer Explanation

MCQs 11: The exact formula for calculating the base saturation percentage is_____________________?

Bas saturation percentage = CA+Mg+Na / CEC x 100 Bas saturation percentage = /CEC / CA+Mg+Na x 100 Bas saturation percentage = /CEC / CA+Mg x 100 None of the above
Answer Explanation

MCQs 12: The toxicity level of Zn (mg/kg) in plants suggested by some workers is___________________?

> 50 mg kg-1 > 10 mg-1 > 400 mg kg-1 None of these
Answer Explanation

MCQs 13: The chemical formula of Dolomite is________________?

CaMg (CO3)2 MgCO3 CaCO3 None of the above
Answer Explanation

MCQs 14: Auxins promote___________________?

Cell elongation Cell division Both a & b None of the above
Answer Explanation

MCQs 15: Deep percolation from a soil profile is generally measured by a device known as_____________________?

Hydrometer Lysimeter Thermometer Tensiometer
Answer Explanation

MCQs 16: The particlesw density of a mineral soil is about____________________?

2750 Kg m-3 2550 Kg m-3 2650 Kg m-3 None of the above
Answer Explanation

MCQs 17: The safe limit of No2 in drinking water is_____________________?

10 mg L-1 15 mg L-1 20 mg L-1 None of the above
Answer Explanation

MCQs 18: The device used for the measurement of positive pressure potential of soil water is known as_________________?

Lysimeter Tensiometer Piezometer Barometer
Answer Explanation

MCQs 19: Soil structure without aggregation is known as____________________?

Platy Granular Massive Both b & c
Answer Explanation

MCQs 20: The water loss through transpiration from vegetative and evaporation from soil surface is known as__________________?

Evaptranspiration Transpiration Evaporation Guttation
Answer Explanation

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