[Effect of late nitrogen fertilization on protein content in wheat grain] | Efecto de la fertilizacion nitrogenada tardia sobre el contenido de proteinas en grano de trigo
1997
Miguez, F. | Aguerre Siquier, M. | Cayol, M. | Dominguez, M. | Fernandez Martinez, H. | Fernandez Roger, A. | Firpo, L. | Lafuente, M. | Luzuriaga, L. | Mariani, F. | Mayer, F. | Negri, R. | Vago, M. | Zapiola, A. (UCA, Buenos Aires (Argentina))
English. Eleven field trials were carried out on commercial wheat during two growing seasons, in order to study the effect of spraying 20 and 40 kg N/ha as urea at anthesis on the protein content in grain. Where the untreated plots had a protein content under 12 percent a significative response was obtained. A regression model was proposed to explain the increase found. It was concluded that when due to management practices and/or growing conditions of the crop a low protein content is expected, a late nitrogen spraying is a sound method to increase the protein level in the wheat grain
Show more [+] Less [-]Spanish; Castilian. Se realizaron 11 ensayos sobre lotes de produccion comercial durante dos campanas, que consistieron en la aplicacion foliar de 20 y 40 kg de N/ha centrada en la floracion del trigo, para estudiar su efecto sobre el nivel de proteina en grano. Se encontro respuesta estadisticamente significativa en aquellos sitios en que los testigos tuvieron menos de 12 porciento de proteina, proponiendose un modelo de regresion para explicar la variacion hallada. Se concluyo que cuando por las practicas de manejo y/o las condiciones de crecimiento del cultivo se esperen niveles bajos de proteina, la fertilizacion foliar tardia con N es un medio idoneo para elevar el tenor proteico en grano de trigo.
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