2012
DOI: 10.5433/1679-0359.2012v33n2p809
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Produção de biomassa, de açúcar e de proteína em função de variedades de cana e de adubação fosfatada

Abstract: ResumoA cana-de-açúcar é uma forragem que apresenta limitações nutricionais, devido aos baixos teores de proteína, de fósforo e de enxofre, entretanto, a adubação fosfatada pode melhorar sua qualidade nutricional, pois influencia na absorção e no metabolismo do nitrogênio e do fósforo. No presente estudo, avaliaram-se, no ciclo de cana-planta, o acúmulo de matéria seca, de fósforo e de proteína bruta e a produção de sacarose de duas variedades de cana-de-açúcar em função da adubação fosfatada. O estudo foi um … Show more

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Cited by 15 publications
(28 citation statements)
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“…Korndörfer & Melo (2009) observed a positive response in stalk production for localized phosphate fertilization, in which the dose of 100 kg ha -1 of P 2 O 5 promoted yields from 131.9 to 146.1 t ha -1 , varying according to the source used. The yield obtained in the present study is lower than that observed by many authors in experiments with plant cane (Santos et al, 2009;Calheiros et al, 2012). This probably occurred because the crop has undergone periods of low water availability in the months of March and April 2012 and from September 2012 until the harvest, in February 2013.…”
Section: Resultscontrasting
confidence: 54%
“…Korndörfer & Melo (2009) observed a positive response in stalk production for localized phosphate fertilization, in which the dose of 100 kg ha -1 of P 2 O 5 promoted yields from 131.9 to 146.1 t ha -1 , varying according to the source used. The yield obtained in the present study is lower than that observed by many authors in experiments with plant cane (Santos et al, 2009;Calheiros et al, 2012). This probably occurred because the crop has undergone periods of low water availability in the months of March and April 2012 and from September 2012 until the harvest, in February 2013.…”
Section: Resultscontrasting
confidence: 54%
“…Phosphorus is a macronutrient that has great importance in the growth and development of plants, since it participates in the structural composition of macromolecules, such as nucleic acids, phospholipids and adenosine triphosphate. In sugarcane, P plays a key role in metabolism, particularly in the formation of proteins, cell division, photosynthesis, energy storage, splitting of sugars, respiration and energy supply from ATP and formation of sucrose (Calheiros et al, 2012;Caione et al, 2013).…”
Section: Total Recoverable Sugars (Trs) and Phosphorus Inorganic (Pi)mentioning
confidence: 99%
“…Essas informações são de fundamental importância para um manejo racional da cultura pois indicam as quantidades de nutrientes que devem ser fornecidos a cultura (Calheiros et al, 2012).…”
Section: Fundamentação Teóricaunclassified
“…Essas informações são de fundamental importância para um manejo racional da cultura pois indicam as quantidades de nutrientes que devem ser fornecidos a cultura (Calheiros et al, 2012 (Oliveira et al, 2010;Kist et al, 2015). Desse modo, trabalhos que avaliam a eficiência nutricional são de grande importância, por possibilitar a escolha de variedades mais eficientes, reduzindo os custos de produção.…”
Section: Fundamentação Teóricaunclassified
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