Irrigação em plantas jovens de mogno africano (Khaya ivorensis) no cerrado
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Data
2014-02-05
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Universidade Federal de Goiás
Resumo
Brazil, has been feeling from a lack of technical guidance and ecological
awareness in the exploitation of forest resources to meet the furniture industry, which has
caused irreparable harm to species of great ecological value. The African mahogany source
countries of the west coast of the African continent is one such tree species being used in
commercial plantations, due to its high commercial value, the quality of the wood, its high
yield potential and good adaptation to Brazilian climatic conditions. However, little is
known about its water and a nutritional need which hinders adequate technical
recommendation for this crop in the Cerrado region whose water deficit and the low
fertility soils are very characteristic. Thus this study had the objective: evaluate plant
growth in the first two years cultivation, irrigation and drip irrigation under different
managements and topdressing. The research consisted of field experiments with plants of
African Mahogany (Khaya ivorensis) spaced 5 x 5 m, experimental design was a
randomized complete block design (RBD) with three blocks in split plots. For drip
irrigated treatments were used 1, 2 and 3 emitters per plant with flow rates of 2 L.h-1, 4 L.h-
1 and 8 L.h-1, and irrigated treatments, microsprinkler, using 1 emitter for every 2 plants
with different flow rates: 20, 30, 35, 40, 50, 58, 70 and 90 L.h-1, and no irrigation. For the
following plots of fertilization doses were used 83.5 e 42.0; 167.0 e 83.5; 250.0 e 125.0;
333.5 e 167.0; 416.6 e 208.5 g.plant-1 of NH4SO4 and KCl, installments bimonthly in 5
applications from 4th to 12th month of planting.
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BARBOSA, L. H. A. Irrigação em plantas jovens de mogno africano (Khaya ivorensis) no cerrado. 2014. 66 f. Dissertação (Mestrado em Agronomia) - Universidade Federal de Goiás, Goiânia, 2014.