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.Management Sciences
Category: Soil Science
The little clay mineral is_____________________?
0
A. Non-expending
B. Expending
C. None or little expending
D. None of the above
Deficiency of B can be corrected through application of chemical fertilizer of_________________?
A. Solubor
B. Boric acid
C. Borax
D. All the above
hydrosphere refers to______________________?
A. Zone of water
B. Zone of air
C. Zone of atmosphere
D. Zone of earth crust
The factor used for conversion of P to P2O3 is____________________?
A. o.453
B. 0.643
C. 0.436
D. None of the above
The unit of electrical conductivity is____________________?
A. dsm-1
B. mmhos/m
C. ms/cm
D. Al the above
Rocks having coarse bubble holes are called_______________________?
A. Purr ice
B. Mafic
C. Scoria
D. Felsic
A soil is classified as sodic soil when______________________?
A. EC is 8.5
C. SAR is >13
D. All the above
pF unit is used for the measurement of_____________________?
A. Hydraulic potential
B. Hydraulic conductivity
C. Negative soil water potential
D. All the above
The problem of soil crosion Thal and Cholistan is predominantly due to___________________?
A. Wind
B. Air
C. Water
D. All the above
Chromium (Cr) is a____________________?
A. Macro element
B. Secondary element
C. Heavy metal
D. Free element
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