Renovation of permanent grassland by herbicide treatment and liming compared to reseeding after ploughing, liming and fertilization, with or without a break-crop

abonos agricultural chemicals agricultural lime agronomic characters amendement du sol analisis analyse analyse chimique analysis aradura ash content auxinas auxine auxins calcium oxide catch crops chaux agricole chemical analysis composition contenido de ceniza contenido de fibras contenido proteico cropping patterns crops cultivation cultivo cultivo intermedio cultivos culture multiple economic plants engrais engrais organique enmiendas del suelo ensemencement escandinavia europa europe facteur de production farmyard manure feed crops feed grasses fertilizers fibre content gramineas graminee grasses grazing lands inorganic compounds labour labranza land mcpa methode methods mode de culture multiple cropping multiplication des plantes noruega norway nurse crops oxides oxyde oxyde de calcium pastizal permanente pastizales pastures permanent pastures plant establishment plant growth substances plant production plant propagation planta-abrigo plantas plantas forrajeras plantas protectoras plante plante d'abri plante de culture plante de protection plants ploughing prairie permanente pratique culturale production production factors productividad productivity produit agrochimique profitability protective plants protein content rendement rendimiento rentabilidad sales salts scandinavia scandinavie sel siembra soil soil amendments sol sowing suelo teneur en cendres teneur en fibres terre tierras tierras de pastoreo tillage travail du sol yields