Dissertação

Adubação e estado nutricional em plantios de Eucalyptus urograndis no Estado do Tocantins

The objective was to evaluate the influence of different foliar fertilizers in the development and nutritional status in a plantation of Eucalyptus urograndis in the Municipality of Brejinho de Nazaré - Tocantins. The experiment was installed in a plantation of Eucalyptus urograndis clone H13, plant...

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Autor principal: Gonçalves, Douglas Santos
Grau: Dissertação
Idioma: pt_BR
Publicado em: Universidade Federal do Tocantins 2017
Assuntos:
Acesso em linha: http://hdl.handle.net/11612/369
Resumo:
The objective was to evaluate the influence of different foliar fertilizers in the development and nutritional status in a plantation of Eucalyptus urograndis in the Municipality of Brejinho de Nazaré - Tocantins. The experiment was installed in a plantation of Eucalyptus urograndis clone H13, planted in spacing 3 m x 3.5 m. When planting had 14 months of age, by air fertilization was carried out in each area, except for the area 3. The treatments were: T1 - Fertilization Standard Farm; T2: Fertilization Timac Agro and T3: control (without application of foliar fertilizers). Three treatments and 8 repetitions of 100 m² each. The evaluation was performed when planting showed 26 months of age. The variables analyzed were: height, diameter at breast height, Volume individual per plant, Volume per hectare, basal area per plant, basal area per hectare Average Increase Annual Evaluation of the nutritional status of plants and soil chemistry analysis. The experimental design was DIC (completely randomized design). Data were subjected to analysis of variance and means were compared by Tukey test at 5% probability. Static analyzes were performed with the help of Software Assistat. The plants that received the standard fertilization Farm and the Witness presented the highest levels of development. For the climate and soil conditions of the city of Brejinho de Nazaré, TO, it is recommended not to carry out foliar fertilization at 14 months of age from planting, thus reducing the costs of conducting the forest stand, as in this period, probably still there influence of basic fertilization in the development of planting. It is recommended a longer evaluation in order to achieve a growth prediction for culture. The treatment T2 (Agro Timac), provided greater amount of sulfur nutrients, copper, iron, manganese and zinc in foliar levels, even when on a solo considered with lower fertility compared to the other treatments, depending on the use of Fertileader products.