Long-term agrichemical use leads to alterations in bacterial community diversity

abonos adn application rates arable soils arn azote bacteria barley biodiversidad biodiversity capa arable del suelo cebada chimie du sol cinc cobre copper couche arable cuivre cultivos de primavera culture de printemps dna dosage effects dose d'application electroforesis electrophoresis engrais fertilisation fertilizer application fertilizers flora microbiana flore microbienne fongicide fosforo fungicidas fungicides gene genes herbicidas herbicide herbicides hordeum vulgare magnesio magnesium manganese manganeso micro-organisme du sol microbial flora microorganismos del suelo nitrogen orge pcr pesticide pesticides ph del suelo ph du sol phosphore phosphorus plaguicidas potasio potassium rhizosphere rizosfera rna soil chemicophysical properties soil chemistry soil microorganisms soil ph sol arable sostenibilidad spring crops suelos cultivables sustainability top soil zinc