A farm bio? Yes, but bio what? Biological? Not only. Biodynamics.
Does everyone know the organic farming, without additives and products of synthesis, but what the biodynamy?
Vast question whose answer is not the object here. Simply, one can say approximately that it is like biology, but more thorough. In biodynamy, the farmer respects the calendar of sowings, bench each year per Maria and Matthias K. Thun and published by the House of agriculture biodynamics. (see the site HERE)
For example, one will take care to plant salads a day breaks into leaf , the carrots and potatoes a root day , the tomatos a day fruit etc
In addition, of the preparations containing silica and dung of cow for example are widespread on the cultures at quite precise times of the year. Lastly, we use obviously the compost of the cows which represents one of best existing natural manures.
The best means of knowing why one practises this agriculture with the farm, it is to require of Antoine Fernex: