1, Organic vegetable production base is never use of chemical pesticides and fertilizers, and other prohibited substances in 3 years, plant need to convert more than 2-year conversion period from conventional vegetable to organic vegetable 

2, The base is not soil erosion, wind erosion and other environmental issues, including air pollution, and so on.

3, The irrigation water of the organic vegetables first should be given non-contaminated groundwater and surface water, water quality should follow the "Farmland Irrigation Water Quality Standards."