Naturally/organically grown produce will normally adhere to certified organic standards, but without the certification.This usually means:no chemical/artificial pesticides, most of which persist in the food chain;no chemical/artificial fertilisers, such as those made from petroleum and other natural gases;no chemical/artificial herbicides;no preventative spraying;only biodegradable pesticides which are broken down by sunlight, air, or water. They are usually made from plant matter, instead of synthetic chemicals.only adding organic material, such as manure and compost, to the soil as much as possible; andonly organic fertilisers which come from plant and animal sources are used.