[Food quality, humus life, fertilizing; organic reform and endeavor and the Federal Institute for Quality Research].
D005308:Fertilizers; D005502:Food; D063427:Food Quality; D019369:Life; D012987:Soil
D005308:Fertilizers; D012987:Soil
FERTILIZERS; FOOD; SOIL
Nahrungsqualität, Bodenleben, Düngung; organische Reform-Bestrebungen und das Bundesinstitut für Qualitätsforschung.