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O objetivo deste trabalho foi estudar a influência da adubação com 4 doses de N (0; 100; 200 e 400 g planta-1), utilizando a uréia, e 3 formas de aplicação do boro (via foliar, via solo e sem B), utilizando o ácido bórico, na produtividade, no número, peso médio, diâmetro e comprimento dos frutos, no crescimento e no diâmetro dos ramos, na percentagem de frutos brocados e rachados. As adubações com boro e nitrogênio aumentaram a produtividade e o número de frutos, não se observando variação no diâmetro e no comprimento dos frutos. Houve variação no peso médio de fruto em função do N. O adubo nitrogenado aumentou o número de flores e de frutos e a porcentagem de frutos. As doses de N e as formas de aplicação de B não influenciaram as porcentagens de frutos brocados e rachados. The objective of the research was study the influence of nitrogen fertilization, and three forms of boron application (without boron, boron in the soil and boron on the leaves), on the productivity and the number, average weight, diameter and length of the fruits, as well as on the growth and diameter of the branches, on the percentage of borne. Four doses of N (0, 100, 200 and 400 g plant-1) were applied.The urea and boric acid were used as N and B source, respectively. The nitrogen and boron fertilizations enhanced the productivity and the number of fruits. No variation was observed either in the diameter or length of fruits. The average fruit weight varied in function of the N. The nitrogen fertilization increased the fruit yield. Neither nitrogen fertilization nor the method of B application affected the percentages of borne and split fruits

Produtividade da cultura da pinha (Annona squamosa L.) em função de níveis de adubação nitrogenada e formas de aplicação de boro