A. 1% or less of soil volume
B. 10% or less of soil volume
C. 20% or less of soil volume
D. 30% or less of soil volume
A. Urea
B. Ammonium nitrate
C. Ammonium sulphate
D. Calcium ammonium nitrate
A. Acid soils
B. Sodic soils
C. Saline-sodic soils
D. Saline soils
A. Beneficial
B. Harmful
C. Both a and b
D. None of the above
A. Liebig
B. Baussingault
C. Hiltner
D. Winogrdsky
A. Cellulose
B. Hemicellulose
C. Lignin
D. All of these
A. E-Value
B. L-Value
C. a-Value
D. A-Value
A. 2.50 %
B. 3.50 %
C. 4,50 %
D. 5.5 %
A. Vanadium
B. Cobalt
C. Sodium
D. Nickle
A. 10%
B. 20%
C. 30%
D. 35%