2021
DOI: 10.33448/rsd-v10i1.11647
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Níveis de nitrogênio associado ao modo de aplicação de regulador de crescimento no algodoeiro

Abstract: O ajuste nas quantidades de nitrogênio, para atender as necessidades nutricionais da cultura, e do regulador de crescimento, para adequar e homogeneizar o porte do algodoeiro é aspecto técnico importante, tendo em vista possibilitar a expressão de todo potencial produtivo das cultivares modernas de algodoeiro. Assim o objetivo desse trabalho foi verificar os efeitos dos modos de aplicação de regulador de crescimento e de doses de nitrogênio em cobertura no desenvolvimento vegetativo e reprodutivo do algodoeiro… Show more

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“…The increment of nitrogen fertilization provided increases in the diameter of the stem of the plants up to the estimated dose of 109.83 kg ha -1 of N, obtaining a maximum value of 8.56 mm (Figure 1B), which corresponds to an increase of 42.75% when compared to the value obtained in plants that did not receive nitrogen fertilization. In surveys conducted under conditions of climate, soil, and evaluation times different from the present study, Rigon et al (2011), Simões et al (2021) and Aguilar et al (2021) found that nitrogen doses did not significantly affect plant stem diameter. Regarding the number of leaves (Figure 1C), the highest value found (30.37) was obtained by applying an estimated dose of 127.5 kg ha -1 of N. In the Potiguar semi-arid region, in an experiment conducted under field conditions, Tartaglia et al (2020) found that the highest number of cotton leaves were obtained at the maximum tested dose (200 kg ha -1 of N).…”
Section: Resultscontrasting
confidence: 51%
“…The increment of nitrogen fertilization provided increases in the diameter of the stem of the plants up to the estimated dose of 109.83 kg ha -1 of N, obtaining a maximum value of 8.56 mm (Figure 1B), which corresponds to an increase of 42.75% when compared to the value obtained in plants that did not receive nitrogen fertilization. In surveys conducted under conditions of climate, soil, and evaluation times different from the present study, Rigon et al (2011), Simões et al (2021) and Aguilar et al (2021) found that nitrogen doses did not significantly affect plant stem diameter. Regarding the number of leaves (Figure 1C), the highest value found (30.37) was obtained by applying an estimated dose of 127.5 kg ha -1 of N. In the Potiguar semi-arid region, in an experiment conducted under field conditions, Tartaglia et al (2020) found that the highest number of cotton leaves were obtained at the maximum tested dose (200 kg ha -1 of N).…”
Section: Resultscontrasting
confidence: 51%