Apply chemical fertilizers to promote plant growth

Apply natural fertilizers (manure or compost) to feed soil and plants

Use chemical herbicides to manage weeds.

Rotate crops, till, hand weed or mulch to manage weeds.

Give animals antibiotics, growth hormones and medications to prevent disease and spur growth.

Give animals organic feed and allow them access to the outdoors. Use preventive measures — such as rotational grazing, a balanced diet and clean housing — to help minimize disease.