Done By: Ang Ray Yan
Bryan S Wang
Organic Farming is the form of agriculture relying on:
- crop rotation
- green manure
- biological pest control
to control soil productivity and control pests without:
- synthetic fertilizers
- synthetic pesticides
- livestock feed addictives
- genetically modified organisms
Reliance of Synthetic Increased environmental
- Reduced transport cost - An increasing consumer market
- Reduce pollution - Sustainable form of farming
Government Subsidies Premium Prices
- Incentives for farmers - More revenue for farmers
It is believed that Sir Albert Howard was responsible for the organic farming
movement, beginning in the early 1930s.
- Plants need nitrogen, phosphorus and micronutrients,
which originate from the soil.
- Handweeding, natural herbicides
- One recent innovation includes the introduction of
ducks and fish into paddy fields.
- Use of natural predators and diverting focus on plant
growing multiple crops to
prevent the overuse of a
These are cover crops which help prevent the
growth of weeds, soil erosion and most
importantly provide nitrogen for plants.
Natural pH adjustments:
The use of lime and sulfur help balance the pH
of the soil to suit to suit the growth of plants.
Mulches cover the soil to prevent the growth
of weeds, moderate temperatures, and
prevent soil erosion
Organic Herbicides include Spices and Vinegar.
However D-limonene (Citrus oil) is the most
environmentally safe as it strips the weeds of
its cuticle, causing dehydration and death.
Clear plastic is spread across the
ground in hot weathers to absorb heat
required to kill pathogens and weeds.
Natural Predators that are not harmful
to crops are employed in the fields to
remove insects, anthropods, etc.
Minute pirate bug Big eyed Bug
Organic fungicides are effective against
diseases concerning the roots. (e.g. Bacillus
subtilis). Potassium and sodium bicarbonate
are also effective against fungus.
Less toxic organic insecticides:
These insecticides repels or kills most pests
and does not affect the growth of crops and
most beneficial insects. (e.g. Neem derivatives)
Type of impact Developing Countries Developed Countries
Social There might not be much Those changing from the
change as most forms of impacts of the Green
traditional farming are Revolution could receive
somewhat organic. government subsidies as
incentives for organic farming,
a more eco-friendly alternative.
Economy Farmers could grow richer Prices could become more
due to the premium prices expensive as the demand for
organic crops are sold at healthier food rises in
and reduced cost as no developed nations.
fertilizers are needed,
boosting the economy of
Environment Less pollution in water supplies and less damage to global
Insects dependent on weeds to survive might face extinction
if organic farming continues to spread across the world.