The effect of different soil treatments on the yield and quality of silage maize and spring barley in potato-growing region

aradura cero-labranza crop yield cultivos de primavera culture de printemps ensilado ensilage (produit) hordeum vulgare labour limpia de rastrojos nutritive value ploughing rendement des cultures rendimiento de cultivos silage site factors spring crops stubble cleaning valeur nutritive valor nutritivo zea mays zero tillage