effect of liming, gafsa rock phosphate and triple superphosphate in early growth and phosphorus uptake in eucalyptus dunnii efeito da calagem, do fosfato natural de gafsa e superfosfato triplo no crescimento inicial e absorção de p em eucalyptus dunnii

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ID: 133792
2011
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Abstract
<p>The effect of combined application of lime, phosphorus sources and forms of application of the phosphorus sources on growth and P uptake of Eucalyptus dunnii have been studied in pots. The treatments consisted of two levels of liming (C0, C1 lime to raise to pH 5.5 in water by pH SMP method), two phosphorus sources (triple superphosphate and Gafsa rock phosphate) and two forms of application of phosphorus sources (incorporated and located). The experiment was carried out in a greenhouse using a Humic Cambisol Ta aluminate Typical for 67 days. Liming increased dry matter production of shoots, plant growth, accumulation and P use efficiency in Eucalyptus; the incorporated application was more efficient than localized. Liming decreased efficiency of Gafsa rock phosphate and triple superphosphate was the most efficient phosphorus source.</p><p>doi: 10.4336/2011.pfb.31.68.355</p>
<p>O efeito da aplicação combinada de calagem, fontes de fósforo e forma de aplicação das fontes no crescimento e absorção de fósforo em mudas de <em>Eucalyptus dunnii</em> foi estudado em condições de vaso. O experimento foi conduzido em casa-de-vegetação não climatizada, utilizando um Cambissolo Húmico Ta Alumínico Típico, durante 67 dias. Os tratamentos consistiram na combinação de dois níveis de calagem (C0, sem calagem e C1, dose para elevar o pH em água a 5,5 pelo método do pH SMP), duas fontes de fósforo (superfosfato triplo e fosfato natural de Gafsa) e dois modos de aplicação das fontes de fósforo (incorporada e localizada). A calagem aumentou a produção de matéria seca da parte aérea, o crescimento das mudas, o acúmulo e a eficiência de uso do P no eucalipto. A aplicação incorporada de P foi mais eficiente que a localizada. A calagem diminuiu eficiência do fosfato natural de Gafsa, e o superfosfato triplo foi a fonte mais eficiente.</p><p>doi: 10.4336/2011.pfb.31.68.355</p>
Reference Key
maeda2011pesquisaeffect Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Shizuo Maeda;Itamar Antonio Bognola
Journal journal of ict research and applications
Year 2011
DOI
10.4336/2012.pfb.68.355
URL
http://www.cnpf.embrapa.br/pfb/index.php/pfb/article/view/302
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