Yields of dry matter and nitrogen in highly diverging genotypes of winter wheat in relation to N-uptake and N-utilization

absorption de substances nutritives america azote caracteres de rendimiento composante de rendement contenido proteico crop yield cultivos de invierno culture d'hiver fertilisation fertilizer application genotipos genotypes nitrogen nutrient uptake procedencia protein content provenance rendement des cultures rendimiento de cultivos suecia sweden triticum winter crops yield components