Number of irrigation required for cotton crop are______________?

A. 5 irrigations
B. 6 irrigations
C. 8 irrigations

An example of monocot fiber yielding plant is_________________?

A. Cocos
B. Clemates
C. Corchorus
D. Crotalaria

Major source of sugar in world is_________________?

A. Dates
B. Beet root
C. Water melon
D. Sugarcane

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

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 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 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

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

Weedicides that kill the foliage of weeds by direct contact are as________________?

A. Trifluration
B. Paraquet
C. Bromoxy nil
D. Loxynil

The living together of two or more species in a prolonged and intimate ecological relationship is called________________?

A. Symbiosis
B. Biosystem
C. Auto environment
D. Climate