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.Management Sciences
Category: Soil Science
Organic P content in soil, by ignition method is estimated by igniting the soil at ____________________?
A. 250ºC
B. 1000ºC
C. 550ºC
D. 1250ºC
Igneous rock whose crystal is 1 cm called____________________?
A. Plutonic
B. Felsic
C. Pegmatitic
D. Mafic
Extraction of humic substance can be done by______________________?
A. NaOH
B. NH4Cl
C. NH4OH
D. None of the above
Common soils found in Pakistan are___________________?
A. Arid soils
B. Inceptisols
C. Entisols
D. All the above
The chemical formula of urea fertilizer is_______________________?
A. NH2CONH2
B. [CO(NH2)]
C. Both a & b
D. None of the above
Mean annual precipitation for tundra region is ____________________?
A. 70-80 cm
B. 150-70 cm
C. 0-50 cm
D. None of the above
Identify the fertilizer (s) containing potassium____________________?
A. SOP
B. MOP
C. Chilean salt peter
D. All the above
Process of mixing soil by fauna and flora is called__________________?
A. Lessivage
B. Pedoturbation
C. Leaching
D. Enrichment
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