Guide On AgroForestry


Yashicavashishtha1065

Uploaded on Jan 20, 2022

PPT on Guide On AgroForestry.

Comments

                     

Guide On AgroForestry

z AGROFORESTRY z 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 z 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 z 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 z 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 z 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 z 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 z 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 z MULTIPURPOSE TREES FOR AGROFORESTRY z 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 z 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 z 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 z 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