Synthetic micronutrients may only be used for fertility, they must be OMRI-listed, and there must be a documented deficiency in the form of a soil or tissue test. Remember to ask: Is this micronutrient… …being applied for crop/soil fertility? …OMRI-listed?…
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…
Yes! We launched our aquaponic and mushroom certification programs in 2016. Be sure to review the standards and register for updates on our Mushroom and Aquaponics pages.
Certified Naturally Grown is a Participatory Guarantee System, or “PGS”, and as such relies on peer reviews instead of third-party inspections. We do not hire inspectors. With CNG, it’s other producers, typically ones who are Certified Naturally Grown, who conduct…
Since Certified Naturally Grown does not require any particular design or kind of system, it is not possible to set very specific standards for assessing whether a system is performing functions critical to the overall health of the system. There…
Factors impacting fish health include the following: handling, transport, and harvesting practices; temperature, pH, light levels and stocking densities; feed type and quantity; water quality, filtration and dissolved oxygen; biosecurity and hygiene.
We encourage producers to use feed that is organically grown, and feed that does not contain primary catch. However, because the organic fish feed market is in its early stages, there is limited availability and an extremely high cost barrier.…
Just the plants will be CNG certified. There is only a very small supply of fish feed that would meet CNG standards for livestock certification, and that supply of organic fish feed doesn’t contain fish meal, an ingredient which professional…
We are aware of concerns about off gassing and leaching, but there isn’t conclusive scientific evidence that would justify prohibiting them. These materials may be prohibited in the future, pending more evidence.