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  <titleInfo>
    <title>Produção de Mudas de Ipê-amarelo (Tabebuia serratifolia) em Resposta a Fertilização Nitrogenada</title>
  </titleInfo>
  <name type="personal">
    <namePart>Goulart, Lívia Mara Lima</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Paiva, Haroldo Nogueira de</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Leite, Hélio Garcia</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Xavier, Aloisio</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Duarte, Marciel Lelis</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
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  <genre authority="marc">abstract or summary</genre>
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  <abstract>

RESUMO

Este trabalho objetivou avaliar o efeito de fontes de nitrogênio e respectivas doses sobre o crescimento
e a qualidade de mudas de ipê-amarelo (Tabebuia serratifolia). As mudas foram produzidas
em Latossolo Vermelho-Amarelo e as fontes de nitrogênio utilizadas foram nitrato de amônio,
sulfato de amônio e nitrato de cálcio, aplicadas em cinco doses (0 mg, 75 mg, 150 mg, 225 mg e
300 mg dm–3) e parceladamente, aos 25, 50, 75 e 100 dias após a repicagem. Adotou-se esquema
fatorial 3 × 5 no delineamento experimental, casualizado em blocos, com quatro repetições. Aos
125 dias após a repicagem, a adição do nitrogênio proporcionou efeito significativo na produção
de mudas de ipê-amarelo, sendo que a fonte sulfato de amônio produziu as melhores médias
para todas as características e índices avaliados. Recomenda-se, para a produção de mudas de
ipê-amarelo, a utilização de sulfato de amônio na dose de 100 mg dm–3 de N.

Palavras-chave: nutrição florestal, propagação de plantas, espécies nativas,
nitrogênio.






Production of Yellow Cortez (Tabebuia serratifolia) Seedlings in Response to
Nitrogen Fertilization

ABSTRACT

This work aimed to evaluate the effect of sources of nitrogen and respective levels on growth
and quality of Yellow Cortez (Tabebuia serratifolia) seedlings. Seedlings were grown on a Oxisol
and nitrogen sources were ammonium nitrate, ammonium sulphate and calcium nitrate, applied
in five doses (0, 75, 150, 225 and 300 mg dm–3) and increments of 25, 50, 75 and 100 days after
transplanting. The experimental design was randomized in blocks in factorial scheme (3 × 5) with
four replications. At 125 days after transplanting, the addition of nitrogen provided significant
effect on seedling production of Yellow Cortez (Tabebuia serratifolia), and the ammonium
sulfate produced the best means for all traits and indexes evaluated. We recommend the use of
ammonium sulfate at a dose of 100 mg dm–3 N for Yellow Cortez seedling.

Keywords: forest nutrition, plant propagation, native species, nitrogen.</abstract>
  <note>Publicação on-line; 23 ref.; 4 tables; 5 illus.; Summaries (En, Pt)</note>
  <subject>
    <topic>FERTILIZANTE NITROGENADO</topic>
  </subject>
  <subject>
    <topic>PROPAGAÇÃO VEGETATIVA</topic>
  </subject>
  <subject>
    <topic>ESPÉCIE NATIVA</topic>
  </subject>
  <subject>
    <topic>NUTRIÇÃO VEGETAL</topic>
  </subject>
  <subject>
    <topic>IPÊ AMARELO</topic>
  </subject>
  <subject>
    <topic>TABEBUIA SERRATIFOLIA</topic>
  </subject>
  <relatedItem type="host">
    <titleInfo>
      <title>Floresta e Ambiente (Brazil)</title>
    </titleInfo>
    <originInfo>
      <publisher>Rio de Janeiro-RJ Instituto de Florestas - UFRRJ 1994</publisher>
    </originInfo>
    <identifier>2025-0444</identifier>
    <identifier type="issn">1415-0980  /  ISSN 2179-8087 0nline</identifier>
    <identifier type="local">BR2025007429</identifier>
    <part>
      <text>v. 24 p. 1-9; (2017)</text>
    </part>
  </relatedItem>
  <identifier type="uri">https://www.scielo.br/j/floram/a/jFMkxmCyQ7MK866tgF4rsjM/?format=pdf&amp;lang=pt</identifier>
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    <url>https://www.scielo.br/j/floram/a/jFMkxmCyQ7MK866tgF4rsjM/?format=pdf&amp;lang=pt</url>
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    <recordContentSource authority="marcorg">BR-BrBNA</recordContentSource>
    <recordCreationDate encoding="marc">260220</recordCreationDate>
    <recordChangeDate encoding="iso8601">20260220182206.0</recordChangeDate>
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