A grapevine is like a human being: it needs nourishment. That is why soil conditioners must be added regularly. Since I practice organic viticulture, using chemical fertilizers is out of the question, as it would mean losing my organic certification.
A soil analysis carried out in 2021 revealed a nitrogen deficiency. Since then, I have been adding an organic soil conditioner every year. The organic matter consists of plant pulp and oilseed cakes, and this material is approved for use in organic farming.
This year, my brother advised me to tilling in another type of organic fertilizer made from crushed horn. Crushed horn is a natural product suitable for organic farming; it is a nitrogen-rich organic fertilizer that promotes microbial life.
Here, you can see the result of the plowing between the rows before the application of the soil conditioner:

