1. Non-public agricultural products include organic agricultural products, natural food, ecological food, green food, pollution-free food, etc. It is the most basic need to ensure people's food quality and safety, and it is also the most basic market access condition, and ordinary food should meet this requirement

2. Green food is a general term for safe, high-quality and nutritious food with no pollution in China. Refers to the food produced according to a specific mode of production, which is recognized by specialized agencies and allowed to use the green food mark.

3. Organic food refers to all agricultural and sideline products from the organic agricultural production system and certified by an independent organic food certification body, including grain, vegetables, fruits, dairy products, livestock products, aquatic products and seasonings.