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Updates from the demonstration actions in France

30/09/2020

Recovering organic residues in organic viticulture: a demonstration case in France.

The chamber focuses and encourages the substitution of mineral fertilizers by the farm’s organic residues at the farm level. This goes in-line with the European strategies and guidelines towards the production of biobased fertilizers and soil improvers.

Within the Nutri2Cycle project, the Chamber of agriculture – Charente Maritime CA17 has engaged two demonstration plots at two farms on its territory for the application of biobased fertilizers.

At the “Le Petit Bois” farm located in Thezac, which is covered with vineyard and arable crops, CA17 aimed to apply oil-cake made from oil seeds as a fertilizer for a vineyard plot.

The experiment work started in August 2020 although CA17 initial plan was to start earlier in 2019. The experiment compiled both field and remote sensing data with the use of a drone.

In order to assess Nitrogen accumulation in the tested vineyard, vine leafs whave been tested  with a Dualex sensor in order to collect values fo Nitrogen Balance Index (NBI), in addition to remote sensing data collected with the use of the drone.

The combination of both field and remote sensing data allowed CA17 to draw the map of NBI for the vineyard plot. The NBI varied as seen below:

The map has been sent to farmers as an acknowledgment for their application of biobased fertilisers and in order to encourage them to use oil cake think for their upcoming fertilisation application.