Farmer Certification
Organic refers to how farmers grow and process food.
Conventional farming uses chemical fertilizers to promote plant growth, while organic farming employs manure and compost to fertilize the soil.
Conventional farming sprays pesticides to get rid of pests, while organic farmers turn to insects and birds, mating disruption, or traps.
Conventional farming uses chemical herbicides to manage weeds, while organic farming rotates crops, hand weeds, or mulches.
When raising animals, conventional farmers give animals antibiotics, growth hormones, and medications to spur growth and prevent disease. Organic farmers feed their animals organic feed and allow them to roam. They also will make sure the animals have a balanced diet and clean housing.
Answer From:
http://www.americanprogress.org/issues/2008/09/organic_green.html