Section 13: Grassland and rangeland production and utilization in difficult environments. Effect of summer management on the dead plants, weed development, regrowth and dry matter yield in orchardgrass meadow

abonos nitrogenados altura conduite des herbages crop yield dactylis glomerata fauchage fertilisation fertilizer application grassland management hauteur height malezas manejo de praderas mauvaise herbe meadows mowing nitrogen fertilizers pastizales pastures prados de siega prairie de fauche rebrote regrowth rendement des cultures rendimiento de cultivos repousse siega temperate zones weeds zona templada