Uploaded on Jan 20, 2022
PPT on Guide On AgroForestry.
Guide On AgroForestry
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AGROFORESTRY
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INTRODUCTION
Agroforestry, cultivation and use of trees and shrubs
with crops and livestock in agricultural systems.
Agroforestry seeks positive interactions between its
components, aiming to achieve a more ecologically
diverse and socially productive output from the land
than is possible through conventional agriculture.
Source: www.britannica.com
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PRACTICAL AND LOW-COST
Agroforestry is a practical and low-cost means of
implementing many forms of integrated land
management (which seeks to reduce human impacts
on land), and it contributes to a green economy by
promoting long-term, sustainable, and renewable
forest management, especially for small-scale
producers.
Source: www.britannica.com
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EMERGENCE OF AGROFORESTRY
Although the modern concept of agroforestry emerged
in the early 20th century, the use of woody perennials
in agricultural systems is ancient, with written
descriptions of the practice dating back to Roman
times.
Source: www.britannica.com
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BENEFITS OF AGROFORESTRY
Agroforestry can occur at a variety of spatial scales in
different ecosystems and cultures.
When properly applied, agroforestry can improve
livelihoods through enhanced health and nutrition,
increased economic growth, and strengthened
environmental resilience and ecosystem sustainability.
Source: www.britannica.com
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BENEFITS OF AGROFORESTRY
CONT.
The benefits of agroforestry derive from the
interactions between trees and shrubs and crops and
livestock.
Agroforestry seeks to optimize positive interactions,
such as mutualism and commensalism, and to
minimize predation on crops and livestock and
competition within and between species.
Source: www.britannica.com
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AGROFORESTRY PRACTICES
Agroforestry systems are intensively managed to
maintain their productive and protective functions
through cultivation, fertilization, irrigation, pruning, and
thinning.
Ideally, components are structurally and functionally
combined and actively managed to optimize the
positive biophysical interactions between them.
Source: www.britannica.com
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HISTORY OF AGROFORESTRY
Agroforestry was formally outlined in the early 20th
century by American economic geographer J. Russell
Smith in his book Tree Crops: A Permanent
Agriculture (1929).
Smith viewed tree-based “permanent agriculture” as a
solution to the destructive erosion that often followed
the cultivation of sloping lands.
Source: www.britannica.com
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MULTIPURPOSE TREES
FOR AGROFORESTRY
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ENVIRONMENTAL ADAPTATION
A multipurpose tree must be able to adapt to the
area's climate, soil, topography, and plant and animal
life.
This is especially important for exotic species, that is,
species introduced from outside the project area or
from outside the country.
Source: www.britannica.com
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NEEDS OF FARMERS
The species should meet the needs of farm families.
For this reason, it is important to involve farmers, both
men and women, in selecting species.
They should identify desired tree products and
planting locations based on local markets as well as
conservation needs.
Source: www.britannica.com
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EASE OF MAINTENANCE
Some species are more difficult to look after than
others. Farmers should consider beforehand how
much time they have to care for the trees.
If they require additional skills and knowledge to grow
a particular species, training or demonstration
programs should be organised.
Source: www.britannica.com
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AVAILABILITY OF GENETIC
MATERIALS
Seeds or seedlings of the species being considered
must be easy to obtain.
If vegetative propagation is required, farmers should
receive training in how to do this. Seeds of Gliricidia
sepium and Sesbania spp., for example, might not be
readily available.
Source: www.britannica.com
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