Powered by OpenAIRE graph
Found an issue? Give us feedback
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ Florestaarrow_drop_down
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
Floresta
Article . 2008 . Peer-reviewed
Data sources: Crossref
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
Floresta
Article
Data sources: UnpayWall
versions View all 1 versions
addClaim

EFEITOS DE DOSES CRESCENTES DE CALCÁRIO NA PRODUÇÃO DE MUDAS DE SUMAÚMA (Ceiba pentandra L. Gaertn)

Authors: André Rogério Matos da Silva; Carlos Alberto Franco Tucci; Hedinaldo Narciso Lima; Patricia Aparecida de Souza; Nelson Venturin;

EFEITOS DE DOSES CRESCENTES DE CALCÁRIO NA PRODUÇÃO DE MUDAS DE SUMAÚMA (Ceiba pentandra L. Gaertn)

Abstract

A presente pesquisa foi realizada em viveiro na cidade de Manaus (AM), com o objetivo de avaliar os efeitos de doses crescentes de calcário sobre o crescimento e a absorção de nutrientes por mudas de sumaúma (Ceiba pentandra L. Gaertn). Como substrato, foi utilizado um material coletado no horizonte B de um Latossolo Amarelo álico muito argiloso. O calcário utilizado foi uma mistura de carbonato de cálcio e carbonato de magnésio p.a., na relação de 4:1. Os tratamentos foram doses crescentes de calcário e equivalentes a 0,0; 0,5; 1,0; 2,0; 2,5; 3,0 e 5,0 t.ha-1. A fertilidade do substrato foi corrigida com a aplicação de N, P2O5 e K2O, e micronutrientes em doses equivalentes a 200, 500 e 300 kg.ha-1, respectivamente, mais 15 kg.ha-1 de FTE-Br12. Utilizou-se o delineamento experimental em blocos casualizados, com cinco repetições, num total de 35 parcelas. Cada parcela foi formada por três plantas. As características de crescimento avaliadas foram altura, diâmetro do colo, matéria seca da parte aérea, raiz e total, relação parte aérea/raiz. Os resultados mostraram que a correção do solo influenciou todas as características avaliadas, exceto a relação parte aérea/raiz. A exigência nutricional da espécie, na fase estudada, obedeceu à seguinte ordem decrescente N>K>Ca>Mg>P>Fe>Mn>Zn>Cu. A dose de calcário que acusou o melhor rendimento econômico corresponde a 0,5 t.ha-1, ou 250 g de calcário por 1000 kg-1 de substrato, podendo ser esta a recomendada para subsolos ácidos e de baixa fertilidade natural.

  • BIP!
    Impact byBIP!
    selected citations
    These citations are derived from selected sources.
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    0
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
Powered by OpenAIRE graph
Found an issue? Give us feedback
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold