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handle: 10261/74681
[ES]Se estudian las correlaciones existentes entre las concentraciones de N, P, K, Na, Ca, Mg, Fe, Mn, Cu y Zn en siete especies pratenses (Phalaris tuberosa "comercial", Lolium perenne "V 807", Lolium italicum "Tetrone", Dactylis glomerata "Tardus II" Dactylis glomerata "comercial", Festuca arundinacea "C.P.I. 18952", y Festuca elatior "comercial") en las cuales fue controlado el crecimiento primario, durante dos años consecutivos, realizando cortes cada treinta días en el primer año y cada diez en el segundo. Las correlaciones P-Zn y N-P aparecen en todas las especies, la primera únicamente en el segundo año (excepto en F. arundinacea) y la segunda en los dos años (salvo L. italicum en el primero). La gran variabilidad de las correlaciones, tanto de una especie a otra como de un año a otro para la misma especie, parece sugerir que las particularidades fisiológicas de cada especie puede ser uno de los factores que más influyen en la aparición de unas u otras correlaciones.
[EN]Existing correlations between concentrations of N, P, K, Na, Mg, Fe, Mn, Cu and Zn in seven forage species (Phalaris tuberosa L "commercial" Lolium perenne "V 807" Lolium italicum "Tetrone" Dactylis glomerata "Tardus II", Dactylis glomerata "commercial" Festuca arundinacea "C.P.I. 18952" and Festuca elatior "commercial") are studied. In these primary growth was controlled along two consecutive years taking cuts every thirty days for the first year and every ten days for the second one. The P-Zn correlation is found in all species except in F. arundinacea during the second year while N-P appears in both two years also in all species but for L. italicum during the first year. The great correlations variability from one specie to another as much as from one year to another for the same specie seems to suggest that every specie physiological characteristies may be one of the more influencing factors in the ocurring of every correlation.
13 páginas, 7 figuras
Peer reviewed
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