The major source of foreign exchange earning is________________?
A. Wheat
B. Sugarcane
C. Cotton
D. Jute
Green revolution came into being due to evolution of_________________?
Green revolution came into being due to evolution of_________________?
A. Wheat varieties
B. Sugarcane varieties
C. Cotton varieties
D. All the above
Root nodules in plants help in___________________?
Root nodules in plants help in___________________?
A. Photosynthesis
B. aeration
C. Nitrogen fixation
D. Respiration
Excess of nitrogen to plants causes_________________?
Excess of nitrogen to plants causes_________________?
A. Delay in ripening
B. Delay in growth
C. Delay in germination
D. All the above
Penetrometer are used for measuring__________________?
Penetrometer are used for measuring__________________?
A. Soil tilth depth
B. Soil moisture
C. Soil compaction
D. Soil seepage
2,4-d is synthetic herbicide derived from_______________?
2,4-d is synthetic herbicide derived from_______________?
A. Amino acid
B. Valine
C. Auxins
D. Cytokmins
In wheat total crop P uptake per ton of gram is about;__________________?
In wheat total crop P uptake per ton of gram is about;__________________?
A. 5-20 Kg
B. 2-3Kg
C. 5-7 Kg
D. 20-25 Kg
N mineralization is effected by soil pH_______________?
N mineralization is effected by soil pH_______________?
A. Below 6
B. Above 6
C. Above 10
D. None of the above
Low soil pH is the indication of_______________?
Low soil pH is the indication of_______________?
A. High Mg and Ca
B. High N and S
C. Low N and Ca
D. Moderate Mg and Ca
The K is predominantly in______________?
The K is predominantly in______________?
A. Leaves
B. Straw
C. Grain
D. All the above