A. Bas saturation percentage = CA+Mg+Na / CEC x 100
B. Bas saturation percentage = /CEC / CA+Mg+Na x 100
C. Bas saturation percentage = /CEC / CA+Mg x 100
D. None of the above
Related Mcqs:
- The exact chemical formula of DAP fertilizer is___________________?
A. (NH2) HPO4
B. NH4H2PO4
C. NH4H2PO4
D. Both a & c - The exact formula for sodium hexametaphosphate is___________________?
A. [(NaPO6)13]
B. [(NaPO3)13]
C. [(NaPO2)6]
D. None of the above - The formula used for calculating RSC is _____________________?
A. RSC=(CO32 + HCO2) (Na + K + Ca2 + Mg2)
B. RSC=(CO32 + HCO2) ( Ca2 + Mg2)
C. None of the above
D. non of these - Although some acid soils do exist in the northern mountainous regions of Pakistan (Mansehra, Sawat, Dir). Almost all cultivated soils of the country are ________________, with high base saturation and low organic matter content (generally less than 1%)?
A. Alkaline
B. Very much acidic
C. Calcareous
D. both A & CSubmitted by: Shafiq Rehman
- The conductivity of a saturation extract is greater 4 dsm-1 an exchangeable sodium percentage (ESP) of less than 15 and the pH is usually less than 8.5 is called as__________________?
A. Saline soils
B. Saline-sodic soils
C. Sodic soils
D. Neutral soils - The chemical formula of Hematite is_____________________?
A. AL (OH)2
B. Fe2O3
C. Fe OOH
D. None of the above - The chemical formula for Ammonium acctatc is_____________________?
A. NH3OAC
B. NH4OAC
C. NH4AOC
D. Both b & c - All organism or cell having a chromosome number that is not an exact multiple of the monoploid or basic number is known as___________________?
A. Allopolyploid
B. Autopolyploid
C. Aneuploid
D. Euploid - An organism or cell having a chromosome number that is higher than the exact nultiple of the basic number is known as__________________?
A. Hypoploid
B. Hyperploid
C. Allopolyploid
D. Autopolyploid - A soil is categorized as saline when EC of saturation extract is______________________?
A. >4dsm-1
B. 0.4dsm-1
D. 0.4 4.0 dsm-1
