Tuesday 17 November 2015

CHAPTER 6 SUSTAINABLE AGRICULTURE




Interactions between energy, environment and living organisms































6.1 What is Sustainable Agriculture? 


In simplest terms, sustainable agriculture is the production of food, fibre, or other plant or animal products using farming techniques that protect the environment, public health, human communities, and animal welfare. This form of agriculture enables us to produce healthful food without compromising future generations' ability to do the same.





6.2 History Development of Sustainable Agriculture


The primary benefits sustainable agriculture are: 
  • Environment Preservation 
  • Protection of Public Health 
  • Sustaining Vibrant Communities 
  • Upholding Animal Welfare



6.3 Concept of Sustainable Agriculture

Characteristic of Sustainable

Image result for sustainable agriculture examples images




Economic
Environment
Community
*      Subsidies
*      Income
*      Access
*      Conservation
*      Preservation
*      Animal Welfare
*      Social Justice
*      Cooperative
*      Relationships






Exploring Sustainable Agriculture


1990 Farm Bill according to the Public Law 101-624, Title XVI, Subtitle A, Section 1683

An integrated system of plant and animal production practices having a site-specific application that will over the long terms:

  • Satisfy human food needs
  • Enhance environment quality
  • Sustain economic viability of farming operations
  • Enhance quality of life

Types of Sustainable Farming



  • Organic Farming
  • Biodynamic
  • Permaculture
  • Agro-ecological system
  • Low-input
Organic Farming

Biodynamic
Permaculture


Agro-ecological System



Low-input

Sustainable Practices??

a) Conserve Oil                                                                        
  • Cover crops                                                                          
  • Minimize tillage
  • Crop rotation
b) Recycle Nutrient
  • Compost
  • Manure
  • Crop residues
Nutrient
Conventional
Sustainable
Nitrogen
Made from natural gas  Urea, Anhydrous ammonia
Fixed from air bacteria Manure and compost
Phosphorus
Mined in Florida & Canada
Manure, compost, bone meal
Potassium
Mined in Canada
Manure,, compost



Planning and Decision Making



Earlier Agricultural Development Approach

  • Priority to irrigated areas
  • Increased level of investment in physical capital
  • Technology driven
  • Intensive short-run resource use
  • Priority to cash crops
  • Sectorial and single-disciplinary approach

FARM Development Approach



  • Priority to rainfed areas
  • Greater investment in human resources and capacity building
  • People's participation oriented
  • Long-term sustainable resource use
  • Priority to food security
  • Multi-sectorial and multi-disciplinary systems approach



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