5. The fertility and biological activity of the soil should be maintained or increased, where appropriate, by:
a) cultivation of legumes, green manures or deep-rooting plants in an appropriate multi-annual rotation
programme;
b) incorporation in the soil of organic material, composted or not, from holdings producing in accordance with
these guidelines. By-products from livestock farming, such as farmyard manure, may be used if they
come from livestock holdings producing in accordance with these guidelines;
Substances, as specified in Annex 2, Table 1 may be applied only to the extent that adequate nutrition of the
crop or soil conditioning are not possible by the methods set out in 5(a) and (b) above or, in the case of
manures, they are not available from organic farming.
c) for compost activation, appropriate micro-organisms or plant-based preparations may be used;
d) biodynamic preparations from stone meal, farmyard manure or plants may also be used for the purpose
covered by paragraph 5.
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