Organic farming avoids synthetic inputs like fertilizers and pesticides and relies on techniques like crop rotation, animal manures, and biological pest control. Conventional farming uses synthetic fertilizers and machinery. To convert a farm, it is best to start with easier crops that provide nutrients for subsequent crops and to integrate livestock and crops. A phased approach over 5 years that starts with soybeans, poultry, fish and eventually cattle can help convert the land and establish organic certification.