1999
DOI: 10.1590/s0100-06831999000200014
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Acúmulo de nitrogênio e de fósforo em plantas de milho afetadas pelo suprimento parcial de fósforo às raízes

Abstract: Com o objetivo de estudar os efeitos do suprimento de fósforo a apenas parte do sistema radicular do milho no acúmulo de nitrogênio e de fósforo, foram realizados dois experimentos em solução nutritiva, utilizando-se a técnica de raízes subdivididas. Após sete dias de crescimento em solução nutritiva completa, plântulas de milho foram transplantadas para vasos que continham 1,6 L de solução nutritiva, sendo as raízes igualmente divididas entre os vasos. No primeiro experimento, foram testadas duas doses de P (… Show more

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Cited by 13 publications
(11 citation statements)
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“…Moreover, this effect may be related to the longer time that the cultivar Nayarit remained in the field. The adequate rates of N and P promoted increases in crop production, greater than those found with the use of each nutrient singly, confirming the results of Alves et al (1999).…”
Section: Resultssupporting
confidence: 77%
“…Moreover, this effect may be related to the longer time that the cultivar Nayarit remained in the field. The adequate rates of N and P promoted increases in crop production, greater than those found with the use of each nutrient singly, confirming the results of Alves et al (1999).…”
Section: Resultssupporting
confidence: 77%
“…In treatments with triple superphosphate, which on average produced a higher proportion of dry matter as compared to natural phosphate, the greater amount of P available probably offset the smaller volume of root in contact with the fertilizer, since no interaction (P < 0.05) was observed between application methods and rates of fertilizer. In line with this observation, other authors (Castilhos & Anghinoni, 1988;Alves et al, 1999) have also observed that the application of soluble P to only part of corn root systems does not influence the production of dry matter the plants.…”
Section: Resultssupporting
confidence: 69%
“…Segundo Welch et al (1966), para a obtenção de altas produções de milho, não basta uma simples aplicação de P no sulco de plantio, sendo necessária aplicação suplementar a lanço. Para que haja resposta do milho à adubação no sulco, deve haver uma disponibilidade pelo menos razoável no restante da camada arável (Novais et al, 1985;Klepker & Anghinoni, 1995;Alves et al, 1999). Quadro 6.…”
Section: Resultsunclassified