When one set of vegetation follows the oilier set of vegetation with passage of time is known as ______?
A. Succession
B. Retrogression
C. Biodiversity
D. Linear planting
The depth of irrigation water required for the full crop period is called _____?
A. Consuptive use of water
B. Delta of water
C. Optimum use of water
D. non of these
EC of saline soil is equal to or greater than ___?
A. 2
B. 3
C. 4
D non of these
The critical stages in cotton is ____?
A. Budding
B. Flowering
C. Boll .formation
D. All the above
The movement of water in soil profile is.known as _______?
A. Diffusion
B. Percolation
C. Absorption
D. All the above
Drip method of irrigation is not suitable to close spaced crops because _____?
A. High water requirements
B. High pump pressure
C. High cost on pipes
D. Unavailable of technology
The maximum working depth of disc plow is _____?
A. 300 mm
B. 200 mm
C. 400 mm
D. 450 mm
In country’s GDP, the cotton accounts for _____?
A. 5%
B. 2%
C. 2%
D. 10.15%
A treeless arctic plan is called as _______?
A. Glaciers
B. Barren land
C. Tundra
D. None of the above
A. income farm where the operator is producing primarly his family’s needs rather than for sale is called ______?
A. Family farming
B. Subsistence farming
C. Intensive farming
D. Progressive farming
