Any tillage and planting system that maintains at least 30% of the soil surface covered by residue after planting for the purpose of reducing soil erosion by water:

A. Deep Tillage
B. Conservation Tillage
C. Both a & b
D. None of these

Submitted by: Shafiq Rehman

Related Mcqs:

_________ erosion is the removal of a thin layer of soil by water acting over the whole surface. This type of erosion damaged very fertile lands located on slopes, some of which have been eroded to a depth of about 15 cm.
A. Rain splash rill erosion
B. Stream bank erosion
C. Sheet erosion
D. Gully erosion
Submitted by: Shafiq Rehman
__________________ systems play a crucial role in increasing soil organic C storage and reducing net emissions of greenhouse gases in addition to soil erosion control:
A. Engineering
B. Agroforestry
C. Cultivating
D. All of the above
Submitted by: Shafiq Rehman
Soil additive which stabilizes the soil, improves resistance to erosion, increases to permeability to air & water, improves texture, eases cultivation or otherwise improves soil quality:
A. Soil amendment
B. Soil conditioner
C. Both a & b
D. None of the above
Submitted by: Shafiq Rehman
Any material such as straw, sawdust, leaves, plastic films, & loose soil that is spread upon the surface of the soil to protect the soil & plant roots from the effects of raindrops, soil crusting, freezing or evaporation:
A. Mull
B. Mulch
C. Mycorrhizae
D. Muck
Submitted by: Shafiq Rehman
Small rivulets or finger like channels formed on the surface of earth by action of water, these channels are of small depth & can be leveled by tillage operations is:
A. Gully erosion
B. Sheet erosio.
C. Stream bank erosion
D. None of these
Submitted by: Shafiq Rehman
Soil erosion is __________ of soil from one place ti another place by natural agencies (wind & water):
A. Detachement of soil
B. Transportation
C. both A & B
D. None of these
Submitted by: Shafiq Rehman
Erosion permitting and erosion resisting crops grow alternatively at right angle to the slope of the land is called as:_________?
A. Linear planting
B. Strip planting
C. Cover planting
D. All of the above
Submitted by: Shafiq Rehman
Which is the correct sequence of soil erosion by water:
A. Rill-Sheet-Gully
B. Gully-Sheet-Rill
C. Sheet-Rill-Gully
D. None of these
Submitted by: Shafiq Rehman
Nitrogen & sulphur dioxide liberate from motor vehicles & industries. Nitrogen & Sulphur gases dissolve in the water vapour of atmosphere & form nitric & sulphuric acid. This rain water falls on soil as__________ & contaminates soil also:
A. Acid rain
B. Neutral rain
C. Both A & B
D. None of the above
Submitted by: Shafiq Rehman
Shallow channels that can be readily corrected by routine tillage operations is called:
A. Permanent gullies
B. Ephemeral gullies
C. Both A & B
D. None of these
Submitted by: Shafiq Rehman