If the chlorophyll content in plant increases, the solar radiation transmitted:
A. Increases
B. Decreases
C. Constant
D. None of these
Soil Science
Water occupied the larger soil pores and moves down readily under the force of gravity. Water in excess of the field capacity is termed:
Water occupied the larger soil pores and moves down readily under the force of gravity. Water in excess of the field capacity is termed:
A. Capillary water
B. Hygroscopic water
C. Gravitational water
D. None of the above
The resistance of a soil at various moisture contents to mechanical stresses or manipulations:
The resistance of a soil at various moisture contents to mechanical stresses or manipulations:
A. Soil crusting
B. Soil consistence
C. Bulk Density
D. Both a & c
The process of deposition of soil materials in the lower layer is termed as:_________?
The process of deposition of soil materials in the lower layer is termed as:_________?
A. Illuviation
B. Eluviation
C. Podzolization
D. Laterization
The process of transformation of raw organic matter into humus:
The process of transformation of raw organic matter into humus:
A. Calcification
B. Horizonation
C. Illuviation
D. Humification
Biological Weathering involves:
Biological Weathering involves:
A. Man and Animals
B. Higher Plants and Roots
C. Micro- organisms
D. All of these
What is the concentration of pure water?
What is the concentration of pure water?
A. 55.5 mol/L
B. 45.5 mol/L
C. Both a and b
D. none of these
Roots usually occupy :__________?
Roots usually occupy :__________?
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
Which of the following fertilizers show maximum residual acidity with the continuous soil application:
Which of the following fertilizers show maximum residual acidity with the continuous soil application:
A. Urea
B. Ammonium nitrate
C. Ammonium sulphate
D. Calcium ammonium nitrate
Availability of Zn is higher to crops in:_________?
Availability of Zn is higher to crops in:_________?
A. Acid soils
B. Sodic soils
C. Saline-sodic soils
D. Saline soils