[Fodder maize production in Western France]

bretagne brittany crecimiento croissance crop yield engrais organique ensilado ensilage (produit) exigence des plantes feed crops growth inorganic fertilizers leys monocultivo monoculture necesidades de las plantas nutrition des plantes organic fertilizers plant nutrition plant requirements plantas forrajeras pradera temporal prairie temporaire rendement des cultures rendimiento de cultivos rotation culturale rotational cropping silage soil chemicophysical properties zea mays