Who consider the various properties of soil in relation to plant production?
A. Pedologist
B. Soil chemist
C. Edaphologists
D. agronomist
Soil Science
The process by which nutrients chemicals or contaminants are dissolved and carried away by water, or are moved into a lower layer of soil:
The process by which nutrients chemicals or contaminants are dissolved and carried away by water, or are moved into a lower layer of soil:
A. Infiltration
B. Percolation
C. Leaching
D. Seeg
Available water is held between?
Available water is held between?
A. Field capacity to super available water
B. Only field capacity
C. Field capacity to wilting point
D. All of the above
Which of the following is not a metamorphic rock?
Which of the following is not a metamorphic rock?
A. Marble
B. Granite
C. Sand stone
D. both A & B
Which nutrients are immobile in plants?
Which nutrients are immobile in plants?
A. Ca
B. P
C. B
D. Both A & C
Which element is found highest in earth crust?
Which element is found highest in earth crust?
A. Aluminum
B. Silicon
C. Sodium
D. None of the above
Specific heat is higher in:
Specific heat is higher in:
A. Clay
B. Humus
C. both A & B
D. Only Clay
BGA was discovered as a nitrogen fixer in paddy field by ?
BGA was discovered as a nitrogen fixer in paddy field by ?
A. Beijerinck
B. Fred
C. P.K dey
D. None of the above
Decomposition of the organic matter in submerged soil is carried out by?
Decomposition of the organic matter in submerged soil is carried out by?
A. Actinomycetes
B. Fungi
C. Algae
D. None of the above
Which element is known as chemical police man of plant?
Which element is known as chemical police man of plant?
A. Magnesium
B. Phosphorus
C. Potassium
D. All of the above