growth and absorption march on macronutrients to cultivate crimson sweet watermelon = crescimento e marcha de absorção de macronutrientes para a cultivar de melancia crimson sweet.
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2012
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Abstract
For the sustainability in the production of the watermelon is important to take care of its nutritional requirements, especially at the time where bigger demand for nutrients occurs. With this, it was aimed to evaluate the growth and absorption march of macronutrients for the cv. of watermelon Crimson Sweet. The experiment was carried out in the irrigated perimeter Baixo Acaraú. The period of sampling had initiated it the tenth room day after the emergency (DAE), and had been carried through in regular intervals of 10 days, being thus represented: 24, 34, 44 and 54 DAE. Evidenced that: the period of bigger accumulation of dry mass occurrs between the 44 and 64 DAE, being that to the 64 DAE, the total dry mass of the plant isesteem in 1.131, 72 g; the decreasing order of the macronutrients accumulated for cultivating of watermelon Crimson Sweet is:K> Ca> N> Mg> S> P; The plant without root exported: 66,64 g kg-1 de K; 46,04 g kg-1 de Ca; 31,71 g kg-1 de N; 11,57 g kg-1 de Mg; 11,86 g kg-1 de S; e 6,20 g kg-1 de P; and the period ranging from 44 to 64 DAE is identified as being of bigger demand of macronutrients for the plant. = Para a sustentabilidade na produção da melancia é importante atender-se às suas exigências nutricionais, especialmentena época em que ocorre maior demanda por nutrientes. Objetivou-se, com este trabalho, avaliar o crescimento e marcha deabsorção de macronutrientes pela cultivar de melancia Crimson Sweet. O experimento foi desenvolvido no perímetro irrigadodo Baixo Acaraú, situado na região norte do estado do Ceará. As épocas de amostragem iniciaram-se no décimo quarto diaapós a emergência (DAE), e foram realizadas em intervalos regulares de 10 dias, sendo assim representados: 24, 34, 44, 54 e64 DAE. Constatou-se que o período de maior acúmulo de massa seca ocorre entre os 44 e 64 DAE, sendo que aos 64 DAE, amassa seca total da planta está estimada em 1.131,72 g; a ordem decrescente dos macronutrientes acumulados pela cultivar demelancia Crimson Sweet foi: K>Ca>N>Mg>S>P; aos 64 DAE, a parte aérea exportou: 66,64 g kg-1 de K; 46,04 g kg-1 de Ca;31,71 g kg-1 de N; 11,57 g kg-1 de Mg; 11,86 g kg-1 de S; e 6,20 g kg-1 de P; o período compreendido entre 44 e 64 DAE estáidentificado como sendo o de maior requerimento de macronutrientes pela planta.
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| Authors | ;Edmilson Igor Bernardo Almeida;Márcio Cleber de Medeiros Corrêa;Gabriel Nuto Nóbrega;Everton Alves Rodrigues Pinheiro;Fabrício Ferreira Lima |
| Journal | The journal of physical chemistry letters |
| Year | 2012 |
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