Free Agroforestry MCQs with Answers

• A. Trees and / or shrubs can substantially improve the productivity of farmlands
• B. They are exposed to strong winds
• C. None of these
• D. Both (a) & (b)

Explanation: Windbreaks and shelterbelts consist mainly of trees or shrubs planted where strong winds affect farmland.

• A. Trees and shrubs best suited or preferred by the farmer how much space is available
• B. And whether the land is irrigated or rain fed.
• C. Both (a) & (b)
• D. None of these

Explanation: Windbreak selection depends on the farmer’s preferred tree and shrub species, available space, and whether the site is irrigated or…

• A. The air is baffled and mixed as it hits the wind breaks
• B. Causing a disruptive turbulence patterns which spoils the energy and velocity of the wind
• C. All of the above
• D. This mixing and churning continues as the pressure gradient is built by the windbreak and the air leaks through or rolls over the top of the screen

Explanation: A windbreak disrupts airflow by baffling and mixing the air, creating turbulence that reduces wind energy and velocity.

• A. 80%Agriculture & Forestry
• B. 60%
• C. 70%
• D. 50%

Explanation: A good windbreak combines a dense, low shrub layer with more open tall rows so wind is reduced without producing excessive turbulence.

• A. 1H
• B. 2H
• C. 3H
• D. 4H

Explanation: Windbreak influence generally extends much farther downwind than upwind because the protected air zone develops behind the barrier.

• A. 15%
• B. 20%
• C. 25%
• D. 30%

Explanation: A semi-permeable windbreak performs better than an extremely dense barrier, which causes strong turbulence, or a very open barrier, which…

• A. Are carefully measured at various points on a line perpendicular to the center of the windbreak
• B. By calculation, it can be shown that the total potential yields for most crops will be 2-10% greater on the field
• C. None of these
• D. Both (a) & (b)

Explanation: Crop yield effects are measured at several points along a line perpendicular to the windbreak, allowing the protected and unprotected…

• A. Grazing protection
• B. Fire protection
• C. Pruning
• D. Harvesting
• E. All of the above

Explanation: Windbreaks require protection from grazing and fire during establishment, while pruning and eventual harvesting maintain structure and…

• A. 50
• B. 100
• C. 150
• D. 200

Explanation: Irrigated forest plantations are regarded as a relatively recent land-use practice, becoming established on a broad scale during roughly…

• A. Land consideration: Land is divided into small pieces of different owners
• B. Land classification: Should be done according to (i) Permeability (ii) Percentage of cover (iii) Type of vegetation cover
• C. Both (a) & (b)
• D. None of these

Explanation: Watershed cropping decisions require consideration of land ownership and division, while land classification uses factors such as…

• A. Mulch tillage
• B. Contour cultivation
• C. Tie Ridging
• D. Sub-soiling
• E. All of the above

Explanation: Mulch tillage, contour cultivation, tie ridging and sub-soiling improve arable land by conserving moisture, reducing erosion or breaking…

• A. Forest and trees are intimately linked to agriculture
• B. All of the above
• C. They provide a significant proportion of livestock feed
• D. They play vital role in sustaining crop yields by helping to maintain the soil and water base

Explanation: Trees support food security by protecting soil and water, sustaining crop productivity and supplying fodder for livestock.

• A. The magnitude of the problem on terms of people and areas affected, which is unprecedented in history
• B. The accelerating nature of the processes involved and the increasing irreversibility of their results
• C. All of the above
• D. The lack of success (for socio-economic, cultural or ecological reasons) of most agriculture technologies from temperate regions to solve land-productivity problems over large areas of the topics

Explanation: The global land-use crisis is serious because it affects unprecedented numbers of people and areas, is becoming harder to reverse, and…

• A. Agroforestry and social forestry as land use
• B. It is difficult to increase the forested area because suitable publicly owned lands are not available
• C. Both (a) & (b)
• D. None of these

Explanation: Agroforestry and social forestry can increase tree-based production outside conventional forests, while the scarcity of suitable public…

• A. Tree might lessen the risk of hardship because of crop failure and whenever trees will allow farmers to accumulate capital or cash
• B. Trees will help to spread production activities throughout the year, by staggering the harvests, providing products in dry seasons, or spreading the labour load
• C. None of these
• D. Both (a) & (b)

Explanation: Agroforestry is especially useful when trees reduce the risk of crop failure, provide capital and spread production or labour across the…

• A. Depletion of soil nutrients (especially nitrogen and phosphorous)
• B. All of the above
• C. Inadequate fuel and food supplies
• D. Soil degradation due to absence of soil cover at certain times

Explanation: A farming system becomes non-self-sustaining when nutrients are depleted, soil is exposed to degradation and basic fuel or food needs are…

• A. An agroforestry and social forestry approach to land use exists in areas
• B. Where soil fertility is low and mainly depends on the soil organic matter fraction
• C. All of the above
• D. Where erosion potential is high and where the incidence of surface soil desiccation is high

Explanation: Agroforestry and social forestry are especially useful on low-fertility, erosion-prone and drought-exposed land because trees improve…

• A. Increasing quality of minerals
• B. Increasing quality of protein
• C. Getting different kinds of crops
• D. Increasing fertility of soil

Explanation: Crop rotation maintains or improves soil fertility by alternating crops with different nutrient demands, especially by including legumes…

• A. At the sea shore
• B. Along rivers
• C. In water falls
• D. In all these places

Explanation: Wave erosion is caused by the repeated impact and backwash of waves, so it is most prominent along sea shores.

• A. Sterile soil is converted into fertile soil
• B. Soil is protected against loss
• C. Soil erosion is allowed
• D. Soil is aerated

Explanation: Soil conservation means protecting soil from erosion and other forms of loss so that its productive capacity is maintained.