Specific rules on mushroom production
Article 6
For production of mushrooms, substrates may be used, if they are composed only of the following components: (a) farmyard manure and animal excrements: (i) either from holdings producing according to the organic production method; (ii) or referred to in Annex I, only when the product referred to in point (i) is not available; and when they do not exceed 25 % of the weight of total components of the substrate, excluding the covering material and any added water, before composting; (b) products of agricultural origin, other than those referred to in point (a), from holdings producing according to organic production method; (c) peat not chemically treated; (d) wood, not treated with chemical products after felling; (e) mineral products referred to in Annex I, water and soil.