A. As a tending operation done in the sapling crop, particularly just before
B. With the first thinning, involving the removal
C. Cutting back of all inferior growth, climbers
D. All of the above
Related Mcqs:
- Extraction and cleaning is:
A. Screening
B. Fanning
C. Floating
D. All of the above - Free thinning is:
A. The attention is concentrated still further on the selection of the stems evenly spaced over the ground
B. Which are to be retained to maturity or till the last thinning or two
C. Both (a) & (b)
D. None of these - Mechanical thinning is:
A. The trees to be cut or retained are chosen on the basis of a predetermined spacing
B. Or pattern with little or no regard for their position in the crown canopy
C. Both (a) & (b)
D. None of these - The major types of methods of thinnings is:
A. Low thinning or ordinary thinning
B. Crown thinnings or high thinning
C. Selection thinning
D. Mechanical thinning
E. All of the above - Dominant tree: Including all trees which form the upper most leaf canopy and have their leading shoots free. These are usually sub-divided into:
A. Predominant trees comprising all the largest trees which determine the general top level of the canopy
B. Codominant trees which fall short of this, averaging about 5/6th of the height of predominant
C. Trees with forked leader and similar defects
D. All of the above - Harmful effects can also result from:
A. Pruning trees that are growing very slowly
B. Removing large branches
C. Eliminating too much of the live crown
D. Committing similar errors of judgment
E. All of the above - The injuries are generally caused by:
A. Unnecessary haste
B. Use of improper tools
C. Pruning during the growing season when the bark is loose
D. All of the above - Weeding is a term:
A. That denotes the removal of all plants competing with the crop species in seedling stages regardless of whether their crowns are above, beside
B. Or below those of the desirable trees
C. Both (a) & (b)
D. None of these - Soil working is:
A. Involved in uprooting weeds as compared with cutting them, has been the subject of experiments
B. Which indicate that local experience is necessary
C. As sometimes the gain is considerable, whilst at other times, perhaps mainly with light soil and only moderate weeds
D. All of the above - Nurse crop is:
A. Trees are raised with the preliminary object of helping a less hardy species
B. They are usually removed at an early stage as soon as they have served this purpose
C. Both (a) & (b)
D. None of these
The correct answer to the question: "Cleaning is:" is "All of the above".
