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首页> 外文期刊>Revista Brasileira de Fruticultura >Avalia??o do estado nutricional e do desenvolvimento da bananeira-prata-an? (Musa spp.) em fun??o da aduba??o nitrogenada
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Avalia??o do estado nutricional e do desenvolvimento da bananeira-prata-an? (Musa spp.) em fun??o da aduba??o nitrogenada

机译：香蕉银营养食品的营养状况和发育评估（Musa spp。）作为氮肥的函数

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The experiment was carried in Yellow Podzolic at Itaocara, Rio de Janeiro State, Brazil, (Latitude 21o 39' 12" South and Longitude 42o 04' 36" West, with climate, conform K?ppen, classified as Awi,), to evaluate the nutritional status and the development of the banana cultivar "Prata An?" in relation to five nitrogen fertilization levels (0, 150, 300, 450 and 600 kg ha-1 year-1 of N). In general, the analyzed nutrients contents in the leaf dry matter were not modified by the increase of N dosage, being exception Mn and Cl. The levels of leaf nutrients differed between sampling seasons, with the exception of Ca. There was no variation in the levels of N in the leaf dry matter, in relation to nitrogen fertilization. Lower levels of K were observed in the leaf dry matter during the blooming and bunch development. In the first growing cycle, the nitrogen fertilization had no effect either on blooming time or in the bunch height. There was a decrease in the number of offshoots with the increasing of N levels.
机译：该实验在巴西里约热内卢州Itaocara的Yellow Podzolic中进行（南纬21o 39'12“，西经42o 04'36”，气候符合K？ppen，列为Awi），进行评估香蕉品种“ Prata An？”的营养状况和发育相对于五个氮肥水平（0、150、300、450和600 kg ha-1 year-1的氮）。通常，除Mn和Cl外，氮含量的增加不会改变叶片干物质中所分析的养分含量。除钙外，各采样季节的叶片养分含量不同。与氮肥相关，叶片干物质中氮的含量没有变化。在开花和束生过程中，叶片干物质中的钾含量较低。在第一个生长周期中，施氮对开花时间或束高没有影响。随着N水平的增加，分支的数量减少。

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