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Translations:Manfred Klett: Von der Agrartechnologie zur Landbaukunst/1108/en
Aus BiodynWiki
In a multi-variant, multi-year field trial, the effects of fertilization with farmyard manure compost were compared with an application of mineral salts (nitrogen, phosphoric acid, potassium—NPK) and a treatment with the so-called biodynamic horn silica preparation
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