Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/11238
Título: Aspectos nutricionais do baru (Dipteryx alata Vog.) em casa de vegetação e em campo
Título(s) alternativo(s): Nutritional aspects of the baru (Dipteryx alata vog.) in greenhouse and field
Autores: Venturin, Nelson
Macedo, Renato Luiz Grisi
Venturin, Regis Pereira
Melo, Lucas Amaral de
Marques, João José Granate de Sá e Melo
Palavras-chave: Cumbaru
Elemento faltante
Adubação NPK
Calagem
Nutrição florestal
Missing element
NPK fertilization
Liming
Forest nutrition
Data do documento: 9-Jun-2016
Editor: Universidade Federal de Lavras
Citação: SOUSA, F. F. de. Aspectos nutricionais do baru (Dipteryx alata Vog.) em casa de vegetação e em campo. 2016. 145 p. Tese (Doutorado em Engenharia Florestal)-Universidade Federal de Lavras, Lavras, 2016.
Resumo: With the objective of evaluating the response of baru (Dipteryx alata Vog.) to nutrient limitation and to the different levels of fertilization, seven experiments were conducted. Experiment 1: Nutritional limitation in greenhouse. We employed 12 treatments in a completely randomized design with eight replicates. Experiment 2: Levels of liming and P in greenhouse. The experimental design was completely randomized in a factorial scheme with four levels of liming (V23.2% (natural soil), V45%, V65% and V85%) and four doses of P (0, 100, 300 and 500 mg kg -1 of P). Experiment 3: Doses of N in greenhouse. We used seven treatments (0, 75, 150, 225, 300, 375 and 450 mg kg -1 of N) in a completely randomized design. Experiment 4: Doses of K in greenhouse. We used seven treatments (0, 75, 150, 225, 300, 375 and 450 mg kg -1 ) in a completely randomized design. Experiment 5: Levels of liming under field conditions. We used four treatments (V6.7% (natural soil), V35%, V55% and V75%) in a randomized blocks design. Experiment 6: doses of P under field conditions. We used five treatments (0, 23.67, 53.34, 106.67 and 213.36 kg ha -1 of P 2O5) in a randomized blocks design. Experiment 7: Doses of N under field conditions. We used five treatments (0, 30, 60, 120 and 240 kg ha -1 of N) in Latin square. In greenhouse, the evaluations were conducted at eight months (for experiments 1 and 2) and 12 months (for experiments 3 and 4) after seeding, when the measurements of height and root collar diameter of the seedlings. Subsequently, the plants were harvested and separated into shoot and root system, for weighing and evaluating dry biomass gain. In the field, the evaluations were conducted at six, 12, 18, 24 and 30 months (for experiments 5 and 6) and at six, 12 and 18 months (for experiment 7). In these experiments, we evaluated the survival of the seedlings, height of the plants and diameter of the stem at soil height. The data obtained were submitted to analysis of variance, mean tests and regression analysis. In conclusion, during the phase of seedling formation, the species is little demanding in S and B, negatively responds to liming, positively responds to phosphate fertilization and does not respond to nitrogen and potassium fertilization. In the field, in general, the species does not respond to the application of P or to liming, and is negatively influenced by the application of elevated doses of nitrogen.
URI: http://repositorio.ufla.br/jspui/handle/1/11238
Aparece nas coleções:Engenharia Florestal - Doutorado (Teses)

Arquivos associados a este item:
Arquivo Descrição TamanhoFormato 
TESE_Aspectos nutricionais do baru (Dipteryx alata Vog.) em casa de vegetação e em campo.pdf2,85 MBAdobe PDFVisualizar/Abrir


Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.