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Open Access Fertilização foliar de nitrogênio para laranjeira em estágio de formação Foliar nitrogen supply to young citrus plants

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Laranjeiras em estágio de formação receberam adubação foliar com uréia (15N). As folhas absorveram, nas 48 horas após a adubação foliar, 52% do N aplicado. Em relação ao N aplicado nas folhas das mudas, 38, 39, 23 e 15% foram recuperados nas plantas coletadas aos 75, 120, 180 e 360 dias após o transplante para os vasos, respectivamente. A adubação foliar das mudas não teve efeitos significativos no peso de matéria seca e no acúmulo de N durante o primeiro ano após o transplante.&60;br&62;Young orange plants were supplied with N (15N-urea) by foliar fertilization. The leaves absorbed 52% of the N applied, 48 hours after foliar fertilization. In relation to the total N applied to the leaves of young orange plants, 38, 39, 23 and 15% were recovered in plants harvested 75, 120, 180 and 360 days after transplantating to pots, respectively. There were no significant effects of foliar fertilization on dry matter weight and amounts of N taken up during the first year after transplanting.

Document Type: Research Article

Publication date: 01 January 1999

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