EFFECTS OF PHOSPHORUS RATES AND SOIL CORRECTIVES ON NUTRITIONAL EFFICIENCY OF Stylosanthes guianensis CALAGEM, SILICATAGEM E DOSES DE FÓSFORO NO CRESCIMENTO E NUTRIÇÃO MINERAL DE ESTILOSANTES

<!-- @page { margin: 2cm } P { margin-bottom: 0.21cm } --> <p style="margin-bottom: 0cm; font-style: normal; font-weight: normal; line-height: 120%; text-decoration: none;" lang="pt-BR" align="JUSTIFY"><span style="color: #000000...

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Main Authors: José Cardoso Pinto, Caio Augustus Fortes, Antônio Ricardo Evangelista, Jalison Lopes, Antônio Eduardo Furtini Neto, Ronan Magalhães de Souza
Format: Article
Language:English
Published: Universidade Federal de Goiás 2010-05-01
Series:Pesquisa Agropecuária Tropical
Subjects:
Online Access:http://www.revistas.ufg.br/index.php/pat/article/view/5597
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author José Cardoso Pinto
Caio Augustus Fortes
Antônio Ricardo Evangelista
Jalison Lopes
Antônio Eduardo Furtini Neto
Ronan Magalhães de Souza
author_facet José Cardoso Pinto
Caio Augustus Fortes
Antônio Ricardo Evangelista
Jalison Lopes
Antônio Eduardo Furtini Neto
Ronan Magalhães de Souza
author_sort José Cardoso Pinto
collection DOAJ
description &lt;!-- @page { margin: 2cm } P { margin-bottom: 0.21cm } --&gt; &lt;p style="margin-bottom: 0cm; font-style: normal; font-weight: normal; line-height: 120%; text-decoration: none;" lang="pt-BR" align="JUSTIFY"&gt;&lt;span style="color: #000000;"&gt;&lt;span style="font-family: Times New Roman,serif;"&gt;&lt;span style="font-size: small;"&gt;In tropical soils, soil acidity can increase the efficiency of phosphated fertilization.&lt;span style="color: #ff0000;"&gt; &lt;/span&gt;The objective of this study was to evaluate the effect of two soil correctives and phosphorus rates on nutritional efficiency of &lt;em&gt;Stylosanthes guianensis&lt;/em&gt; cv. Mineirão. The experiment was carried out in a greenhouse at the Department of Soil Science, Universidade Federal de Lavras (UFLa), Minas Gerais State, Brazil. A randomized blocks design was used in a 5x2 factorial arrangement, with five P rates (50 mg dm&lt;sup&gt;-3&lt;/sup&gt;, 100 mg dm&lt;sup&gt;-3&lt;/sup&gt;, 200 mg dm&lt;sup&gt;-3&lt;/sup&gt;, 400 mg dm&lt;sup&gt;-3&lt;/sup&gt;, and 800 mg dm&lt;sup&gt;-3&lt;/sup&gt; of soil) and two soil correctives (lime and Ca and Mg silicate), with three replicates. The use of silicate for soil correction provided higher accumulation of Mineirão dry matter rates, from 50 mg dm&lt;sup&gt;-3&lt;/sup&gt; to 420 mg dm&lt;sup&gt;-3&lt;/sup&gt; of P. When phosphorus was associated with Ca and Mg silicate, the nutrients P, N, Ca, Mg, and Zn increased their use efficiency, resulting in a higher conversion rate of nutrients into biomass produced, except for the application of 800 mg dm&lt;sup&gt;3&lt;/sup&gt;, due to nutritional imbalance in supplies of P and Zn. The Ca and Mg silicate provided greater recovery of applied P and should be used for pasture formation and management where Mineirão is used.&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt; &lt;p style="margin-bottom: 0cm; font-style: normal; font-weight: normal; line-height: 120%; text-decoration: none;" lang="en-US" align="JUSTIFY"&gt;&lt;span style="color: #000000;"&gt;&lt;span style="font-family: Times New Roman,serif;"&gt;&lt;span style="font-size: small;"&gt;KEY-WORDS: &lt;em&gt;Stylosanthes guianensis&lt;/em&gt; cv. Mineirão; Ca and Mg silicate; lime; phosphorus utilization.&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;<br>&lt;!-- @page { margin: 2cm } P { margin-bottom: 0.21cm } --&gt; &lt;p style="margin-bottom: 0cm; font-style: normal; font-weight: normal; line-height: 120%; text-decoration: none;" lang="pt-BR" align="JUSTIFY"&gt;&lt;span style="color: #000000;"&gt;&lt;span style="font-family: Times New Roman,serif;"&gt;&lt;span style="font-size: small;"&gt;Em solos tropicais, a correção da acidez do solo pode aumentar a eficiência da adubação fosfatada. Neste sentido, objetivou-se, por meio deste trabalho, avaliar o efeito de dois corretivos de acidez do solo e de doses crescentes de fósforo, sobre o crescimento e as eficiências nutricionais em &lt;em&gt;Stylosanthes guianensis &lt;/em&gt;cv. Mineirão. O experimento foi conduzido em casa-de-vegetação do Departamento de Ciência do Solo (UFLa). O delineamento experimental utilizado foi o de blocos casualizados, com três repetições, com os tratamentos dispostos em esquema fatorial 5x2, constituídos por cinco doses de P (50 mg dm&lt;sup&gt;-3&lt;/sup&gt;, 100 mg dm&lt;sup&gt;-3&lt;/sup&gt;, 200 mg dm&lt;sup&gt;-3&lt;/sup&gt;, 400 mg dm&lt;sup&gt;-3&lt;/sup&gt; e 800 mg dm&lt;sup&gt;-3&lt;/sup&gt; de solo) e dois corretivos (calcário dolomítico e silicato de Ca e Mg). A correção do solo com silicato proporcionou taxas de acúmulo de massa seca de estilosantes Mineirão mais elevadas, no intervalo de 50 mg dm&lt;sup&gt;-3&lt;/sup&gt; a 420 mg dm&lt;sup&gt;-3&lt;/sup&gt; de P. Os nutrientes P, N, Ca, Mg e Zn tiveram suas eficiências de utilização aumentadas, quando a adubação fosfatada foi associada à silicatagem, ocorrendo maior conversão do nutriente em biomassa produzida, exceto para a dose 800 mg dm&lt;sup&gt;3&lt;/sup&gt;, em função do desbalanço nutricional nos fornecimentos de P e Zn. A silicatagem proporcionou maior recuperação do P aplicado e deve ser usada na formação e manejo de pastagens onde o estilosantes Mineirão for utilizado.&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt; &lt;p style="margin-bottom: 0cm; font-style: normal; font-weight: normal; line-height: 120%; text-decoration: none;" lang="pt-BR" align="JUSTIFY"&gt;&lt;span style="color: #000000;"&gt;&lt;span style="font-family: Times New Roman,serif;"&gt;&lt;span style="font-size: small;"&gt;PALAVRAS–CHAVE: &lt;em&gt;Stylosanthes guianensis&lt;/em&gt; cv. Mineirão; silicato de Ca e Mg; calcário; utilização do fósforo.&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
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spelling doaj.art-266751aa5b2d477999cfa9e6978281332022-12-22T03:22:00ZengUniversidade Federal de GoiásPesquisa Agropecuária Tropical1983-40632010-05-0140210.5216/pat.v40i2.5597EFFECTS OF PHOSPHORUS RATES AND SOIL CORRECTIVES ON NUTRITIONAL EFFICIENCY OF Stylosanthes guianensis CALAGEM, SILICATAGEM E DOSES DE FÓSFORO NO CRESCIMENTO E NUTRIÇÃO MINERAL DE ESTILOSANTESJosé Cardoso PintoCaio Augustus FortesAntônio Ricardo EvangelistaJalison LopesAntônio Eduardo Furtini NetoRonan Magalhães de Souza&lt;!-- @page { margin: 2cm } P { margin-bottom: 0.21cm } --&gt; &lt;p style="margin-bottom: 0cm; font-style: normal; font-weight: normal; line-height: 120%; text-decoration: none;" lang="pt-BR" align="JUSTIFY"&gt;&lt;span style="color: #000000;"&gt;&lt;span style="font-family: Times New Roman,serif;"&gt;&lt;span style="font-size: small;"&gt;In tropical soils, soil acidity can increase the efficiency of phosphated fertilization.&lt;span style="color: #ff0000;"&gt; &lt;/span&gt;The objective of this study was to evaluate the effect of two soil correctives and phosphorus rates on nutritional efficiency of &lt;em&gt;Stylosanthes guianensis&lt;/em&gt; cv. Mineirão. The experiment was carried out in a greenhouse at the Department of Soil Science, Universidade Federal de Lavras (UFLa), Minas Gerais State, Brazil. A randomized blocks design was used in a 5x2 factorial arrangement, with five P rates (50 mg dm&lt;sup&gt;-3&lt;/sup&gt;, 100 mg dm&lt;sup&gt;-3&lt;/sup&gt;, 200 mg dm&lt;sup&gt;-3&lt;/sup&gt;, 400 mg dm&lt;sup&gt;-3&lt;/sup&gt;, and 800 mg dm&lt;sup&gt;-3&lt;/sup&gt; of soil) and two soil correctives (lime and Ca and Mg silicate), with three replicates. The use of silicate for soil correction provided higher accumulation of Mineirão dry matter rates, from 50 mg dm&lt;sup&gt;-3&lt;/sup&gt; to 420 mg dm&lt;sup&gt;-3&lt;/sup&gt; of P. When phosphorus was associated with Ca and Mg silicate, the nutrients P, N, Ca, Mg, and Zn increased their use efficiency, resulting in a higher conversion rate of nutrients into biomass produced, except for the application of 800 mg dm&lt;sup&gt;3&lt;/sup&gt;, due to nutritional imbalance in supplies of P and Zn. The Ca and Mg silicate provided greater recovery of applied P and should be used for pasture formation and management where Mineirão is used.&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt; &lt;p style="margin-bottom: 0cm; font-style: normal; font-weight: normal; line-height: 120%; text-decoration: none;" lang="en-US" align="JUSTIFY"&gt;&lt;span style="color: #000000;"&gt;&lt;span style="font-family: Times New Roman,serif;"&gt;&lt;span style="font-size: small;"&gt;KEY-WORDS: &lt;em&gt;Stylosanthes guianensis&lt;/em&gt; cv. Mineirão; Ca and Mg silicate; lime; phosphorus utilization.&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;<br>&lt;!-- @page { margin: 2cm } P { margin-bottom: 0.21cm } --&gt; &lt;p style="margin-bottom: 0cm; font-style: normal; font-weight: normal; line-height: 120%; text-decoration: none;" lang="pt-BR" align="JUSTIFY"&gt;&lt;span style="color: #000000;"&gt;&lt;span style="font-family: Times New Roman,serif;"&gt;&lt;span style="font-size: small;"&gt;Em solos tropicais, a correção da acidez do solo pode aumentar a eficiência da adubação fosfatada. Neste sentido, objetivou-se, por meio deste trabalho, avaliar o efeito de dois corretivos de acidez do solo e de doses crescentes de fósforo, sobre o crescimento e as eficiências nutricionais em &lt;em&gt;Stylosanthes guianensis &lt;/em&gt;cv. Mineirão. O experimento foi conduzido em casa-de-vegetação do Departamento de Ciência do Solo (UFLa). O delineamento experimental utilizado foi o de blocos casualizados, com três repetições, com os tratamentos dispostos em esquema fatorial 5x2, constituídos por cinco doses de P (50 mg dm&lt;sup&gt;-3&lt;/sup&gt;, 100 mg dm&lt;sup&gt;-3&lt;/sup&gt;, 200 mg dm&lt;sup&gt;-3&lt;/sup&gt;, 400 mg dm&lt;sup&gt;-3&lt;/sup&gt; e 800 mg dm&lt;sup&gt;-3&lt;/sup&gt; de solo) e dois corretivos (calcário dolomítico e silicato de Ca e Mg). A correção do solo com silicato proporcionou taxas de acúmulo de massa seca de estilosantes Mineirão mais elevadas, no intervalo de 50 mg dm&lt;sup&gt;-3&lt;/sup&gt; a 420 mg dm&lt;sup&gt;-3&lt;/sup&gt; de P. Os nutrientes P, N, Ca, Mg e Zn tiveram suas eficiências de utilização aumentadas, quando a adubação fosfatada foi associada à silicatagem, ocorrendo maior conversão do nutriente em biomassa produzida, exceto para a dose 800 mg dm&lt;sup&gt;3&lt;/sup&gt;, em função do desbalanço nutricional nos fornecimentos de P e Zn. A silicatagem proporcionou maior recuperação do P aplicado e deve ser usada na formação e manejo de pastagens onde o estilosantes Mineirão for utilizado.&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt; &lt;p style="margin-bottom: 0cm; font-style: normal; font-weight: normal; line-height: 120%; text-decoration: none;" lang="pt-BR" align="JUSTIFY"&gt;&lt;span style="color: #000000;"&gt;&lt;span style="font-family: Times New Roman,serif;"&gt;&lt;span style="font-size: small;"&gt;PALAVRAS–CHAVE: &lt;em&gt;Stylosanthes guianensis&lt;/em&gt; cv. Mineirão; silicato de Ca e Mg; calcário; utilização do fósforo.&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;http://www.revistas.ufg.br/index.php/pat/article/view/5597Stylosanthes guianensis cv. Mineirãosilicato de Ca e Mgcalcárioutilização do fósforo
spellingShingle José Cardoso Pinto
Caio Augustus Fortes
Antônio Ricardo Evangelista
Jalison Lopes
Antônio Eduardo Furtini Neto
Ronan Magalhães de Souza
EFFECTS OF PHOSPHORUS RATES AND SOIL CORRECTIVES ON NUTRITIONAL EFFICIENCY OF Stylosanthes guianensis CALAGEM, SILICATAGEM E DOSES DE FÓSFORO NO CRESCIMENTO E NUTRIÇÃO MINERAL DE ESTILOSANTES
Pesquisa Agropecuária Tropical
Stylosanthes guianensis cv. Mineirão
silicato de Ca e Mg
calcário
utilização do fósforo
title EFFECTS OF PHOSPHORUS RATES AND SOIL CORRECTIVES ON NUTRITIONAL EFFICIENCY OF Stylosanthes guianensis CALAGEM, SILICATAGEM E DOSES DE FÓSFORO NO CRESCIMENTO E NUTRIÇÃO MINERAL DE ESTILOSANTES
title_full EFFECTS OF PHOSPHORUS RATES AND SOIL CORRECTIVES ON NUTRITIONAL EFFICIENCY OF Stylosanthes guianensis CALAGEM, SILICATAGEM E DOSES DE FÓSFORO NO CRESCIMENTO E NUTRIÇÃO MINERAL DE ESTILOSANTES
title_fullStr EFFECTS OF PHOSPHORUS RATES AND SOIL CORRECTIVES ON NUTRITIONAL EFFICIENCY OF Stylosanthes guianensis CALAGEM, SILICATAGEM E DOSES DE FÓSFORO NO CRESCIMENTO E NUTRIÇÃO MINERAL DE ESTILOSANTES
title_full_unstemmed EFFECTS OF PHOSPHORUS RATES AND SOIL CORRECTIVES ON NUTRITIONAL EFFICIENCY OF Stylosanthes guianensis CALAGEM, SILICATAGEM E DOSES DE FÓSFORO NO CRESCIMENTO E NUTRIÇÃO MINERAL DE ESTILOSANTES
title_short EFFECTS OF PHOSPHORUS RATES AND SOIL CORRECTIVES ON NUTRITIONAL EFFICIENCY OF Stylosanthes guianensis CALAGEM, SILICATAGEM E DOSES DE FÓSFORO NO CRESCIMENTO E NUTRIÇÃO MINERAL DE ESTILOSANTES
title_sort effects of phosphorus rates and soil correctives on nutritional efficiency of stylosanthes guianensis calagem silicatagem e doses de fosforo no crescimento e nutricao mineral de estilosantes
topic Stylosanthes guianensis cv. Mineirão
silicato de Ca e Mg
calcário
utilização do fósforo
url http://www.revistas.ufg.br/index.php/pat/article/view/5597
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