Crescimento vegetativo e acúmulo de nutrientes em Coffea canephora na Amazônia Ocidental
Nenhuma Miniatura disponível
Data
2015-02-24
Autores
Dubberstein, Danielly
Título da Revista
ISSN da Revista
Título de Volume
Editor
Universidade Federal do Espírito Santo
Resumo
The objective was to evaluate the vegetative growth of branches, the concentration
and accumulation of nutrients in fruits and coffee leaves under different
managements of fertilizer in South Western Amazon. The experiment was conducted
in Rolim de Moura municipality, Rondônia, in crops propagated by cuttings 2.5 years
old. The experimental design was randomized blocks in a split plot scheme in time,
with three replications. The main plot consisted of two fertilization managements
(absence and presence) and the plots of the evaluation time (measurement of
branches and fruit collections and leaves). Branch growth differed depending on
fertilization management, and in the period from early October to early December
branches of plants that were fertilized expressed growth rates higher than branches
of plants not fertilized. There were seasonal changes in growth throughout the year,
the highest growth rates occur from mid-September to early April, characterized time
of rainy season in the region. The mineral fertilization influences the concentration in
the fruit on the sheet and accumulation in fruit for nitrogen, phosphorus, potassium,
calcium, magnesium, manganese, iron and zinc. The concentration for most of the
nutrients in the fruit are larger at the start of training. And proportionately lower from
the development of the fruit, except for potassium that behaves differently, keeping
high content of fruit in all stages of development. Since the leaves, low
concentrations occur at the beginning of fruit formation and then tends to increase.
Most of the accumulation of nutrients in fruits occurs in the expansion stages of grain
formation and maturation, suggesting a higher nutritional demand during this period.
Descrição
Palavras-chave
Café conilon , Análise de crescimento , Fases fenológicas , Growth analysis , Manejo nutricional , Phenological phases , Acúmulo de nutrientes , Coffea canephora , Nutritional management , Adubação
Citação
DUBBERSTEIN, Danielly. Crescimento vegetativo e acúmulo de nutrientes em Coffea canephora na Amazônia Ocidental. 2015. 76 f. Dissertação (Mestrado em Agricultura Tropical) - Programa de Pós-Graduação em Agricultura Tropical, Universidade Federal do Espírito Santo, São Mateus, 2015.