Crescimento de mudas de jacaré (Piptadenia gonoacantha (Mart.) J.F. Macbr.), bico-de-pato (Machaerium nictitans (Vell.) Benth.) e garapa (Apuleia leiocarpa (Vogel) J.F.Macbr.) em diferentes tipos de solo e fontes e doses de nitrogênio

• Ano de defesa: 2006
• Autor(a) principal: Marques, Lissandra Silva
• Orientador(a): Paiva, Haroldo Nogueira de
• Banca de defesa: Dias, Herly Carlos Teixeira , Jacovine, Laércio Antonio Gonçalves
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Viçosa
• Programa de Pós-Graduação: Mestrado em Ciência Florestal
• Departamento: Manejo Florestal; Meio Ambiente e Conservação da Natureza; Silvicultura; Tecnologia e Utilização de
• País: BR
• Palavras-chave em Português: Árvores; Mudas; Crescimento; Nutrição; Adubos e fertilizantes; Qualidade; Nitrogênio; Piptadenia gonoacantha; Machaerium nictitans; Apuleia leiocarpa
• Palavras-chave em Inglês: Trees; Seedlings; Growth; Nutrition; Fertilizers; Quality; Nitrogen; Piptadenia gonoacantha; Machaerium nictitans; Apuleia leiocarpa
• Área do conhecimento CNPq: CNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL::SILVICULTURA
• Link de acesso: http://locus.ufv.br/handle/123456789/3059

Due to the lack of information on the nutritional demand, mainly for nitrogen and also about the seedlings quality standards for Atlantic forest native species with good growth potential, it was studied in this work the growth of Jacaré (Piptadenia gonoacantha (Mart.) J.F. Macbr.), Bico-de-pato (Machaerium nictitans (Vell.) Benth.) and Garapa seedlings (Apuleia leiocarpa (Vogel), J.F. Macbr in response to different sources and levels of nitrogen on three different soils. The seedlings were cultivated in 1,5 dm3 vases using as substract three samples of the predominant soils in Viçosa-MG region, cambisoil, ultisoil and latosoil. The experiment was developed in the nursery of Forest Engineer Research Department at Federal University of Viçosa- DEF/UFV, in Viçosa MG, from november 2004 to july 2005. The treatments were based on three sources of nitrogen applied as nitrate of ammonium [NH4NO3], nitrate of calcium [Ca(NO3)2] and sulfate of ammonium [(NH4)2SO4] solutions, and five levels (0,50,100,150 and 200 mg/dm3 of N), divided in four equivalent portions, 25, 50,75, 100 days after seeding. The statistical design for each species was randomized blocks (DBC), factorial arrangement (3 x 5 x 3), corresponding to three sources, five levels of nitrogen and three different types of soils, with four blocks, in a total of 180 vases. The morphological characteristics and their relations to determine the seedlings quality indexes were analyzed at the end of the experiment, 120 days after seeding, when it was also verified presence and number of active nodules in the root system. Generally speaking, the seedlings response to the nitrogen fertilization showed similar behavior, and the quality of Jacaré seedlings was better in ultisoil and cambisoil substract. Bico-de-pato seedlings had better performance in cambisoil substract, and Garapa seedlings in ultisoil substract, using sulfate of ammonium, applying an average of 170, 150 and 150 mg/dm3 of N parceled out at the 25, 50, 75 and 100 days.