Modern agriculture is projected to find ways to produce better with a lower environmental impact while still guaranteeing quality in taste, color, greater harvest etc. The use of Grena products allows for these results by interacting perfectly with developing agronomic practices. For this reason, it is important to find the most suitable natural biostimulant for each crop while respecting the environment because all Grena products are obtained from renewable sources such as organic substances of animal origin.
and thus listed in the major inputs lists for organic farming
(FiBL, InfoXgen, IMO Control, Sohiscert, BCS-Oeko).