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- W2021238986 abstract "Foi conduzido experimento em Latossolo Vermelho Distrófico típico, em São Carlos, SP, para avaliar o efeito de doses e fontes de nitrogênio (N), no teor, extração dos nutrientes e na recuperação do N aplicado em capim-coastcross (Cynodon dactylon cv. Coastcross). Foram aplicadas sobre a superfície do solo cinco doses de N (0, 25, 50, 100 e 200 kg ha-1corte-1), na forma de uréia ou de nitrato de amônio, em cinco períodos consecutivos, durante a estação chuvosa. Foram determinados os teores e calculada a extração de nutrientes e a recuperação do N. Houve aumento na extração dos nutrientes com o aumento da produção de forragem, com elevados valores principalmente para N e K. Para altas produções de forragem (tratamento 500 kg ha-1 ano-1de N) e para as duas fontes de nitrogênio as extrações dos macronutrientes foram maiores para K e N, seguidas de Ca, S, P e Mg e dos micronutrientes Fe, Mn, Zn e Cu. A recuperação média de N da uréia foi de 68% do N obtido do nitrato de amônio, que variou, em média, de 68 a 75%." @default.
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- W2021238986 date "2004-02-01" @default.
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- W2021238986 title "Adubação nitrogenada em capim-coastcross: efeitos na extração de nutrientes e recuperação aparente do nitrogênio" @default.
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