Like our compost standards, CNG's manure requirements are based on National Organic Program, EPA, and FDA guidelines for food safety. For applications of manure, we require the following intervals between manure application and crop harvest: --120 day interval for crops in which…
CNG's compost standards are based on National Organic Program, EPA, and FDA guidelines for food safety. If a farmer wants to apply farm-produced compost that includes manure, they'll need to monitor the initial C:N ratio, take temperature readings, and turn the pile…
CNG requires that growers have one year of experience producing and selling their products before applying for certification. We look for practices to be tried and tested to ensure that growing methods are successful and sustainable. Let us know that you're interested in certification; we'd…
In order to determine if an input is allowed for use in your CNG operation, go through the following steps. Is the product OMRI-listed? If yes, you're good to go! (Note that we do not allow rotenone or synthetic hydroponic…
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Mushrooms are not grown in soil and behave differently than plants. Separate standards were needed to provide more meaningful guidance for production of this distinct type of crop.
We discovered that there are very few commercially viable hydroponic operations that rely on natural fertility sources. The NOP has recently begun to certify hydroponic operation and allowed the use of synthetic, OMRI-listed nutrient solutions. CNG does not allow the…
The CNG label may be used on packaging only if the following two conditions are met: It states clearly on the label which ingredients are CNG certified (for example, "made with Certified Naturally Grown tomatoes" or "Ingredients: tomatoes*, onions, basil*, olive oil,…
Treated wood isn't allowed for new construction where it will come into contact with the soil, though existing wood can be grandfathered in. If you're looking for alternatives, you might consider naturally rot-resistant wood, such as cedar, black locust, black walnut,…
It is important for CNG farmers to have an adequate buffer to protect their fields from potential sources of contamination. The appropriate size of the buffer depends on the context, including factors like prevailing wind patterns, the elevation and slope…