Weedicides that kill the foliage of weeds by direct contact are as _____?
A. Trifluration
B. Paraquet
C. Bromoxy nil
D. Loxynil
Soil water in excess of hygroscopic and capillary water which moves downward through the soil by the force of gravity is called _____?
A. Capillary water
B. sub-surface water
C. Gravitational water
D. Run off water
The application of fertilizer nutrients in proportions best suited to the needs of the crop is called _____?
A. fertilizer placement
B. fertilizer use efficiency
C. Nitrogen use efficiency
D. Balanced fertilization
The total dry matter produced by a plant as a result of photosynthesis is called ____?
A. Biological yield
B. Harvest index
C. Dry matter
D. Crop growth
The heating of atmosphere by gases that are transparent to sun light but opaque to radiated heat is called ____?
A. Green house effect
B. Pollution
C. Warming
D. Solar radiation
The depth of water required by crops during the base period is called _______?
A. Frequency of water
B. Acre inch
C. Duty of water
D. Delta of water
Major source of sugar in world is ______?
A. Dates
B. Beet root
C. Water melon
D. Sugarcane
An example of monocot fiber yielding plant is _____?
A. Cocos
B. Clemates
C. Corchorus
D. Crotalaria
Number of irrigation required for cotton crop are _____?
A. 5 irrigations
B. 6 irrigations
C. 8 irrigations
Best time of sowing for cotton is _____?
A. Mid March to mid April
B. Mid May to mid July
C. Mid June to mid July
D. non of these
