Crescimento inicial de teca e produtividade de soja sob diferentes adubações em sistema agrossilvicultural
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2016-03-11
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Universidade Federal de Goiás
Resumo
The Agroforestry Systems (SAF’s) are models of agricultural exploration that
using forest species intercropped with agricultural crops and/or forage with or without
animal presence. They have been widely disseminated therefore contribute to the
sustainability of the agriculture. This study was developed from an experiment conducted
in agrossilvicultural system during the period 2013-2015, the Federal University of Goiás,
city of Goiania, GO. The objective of this study was to evaluate the chemical properties of
soil, development and productivity of plant components in system integration (Teca and
soybean), using different fertilization soil and cropping systems. The experimental design
was a randomized block with four replications, in arrangement factorial 4 x 2, consists of
four types of fertilization: no application (control); mineral fertilization; application of
cattle manure and application of sewage sludge in two cropping systems: single Teca and
Teca intercropped with soybeans. The chemical properties of the soil were favored by the
application of sewage sludge. There not increase in levels of heavy metals in soil by use of
organic waste. The productivity of soybean fertilized with sewage sludge did not differ of
the mineral fertilizer, being higher other fertilization. The initial performance of Teca in
single cropping was favored by the application of both organic waste. However, when
intercropped with soybean, sewage sludge application resulted in higher values of height
and diameter at breast height (DBH). The canopy of the tree component of the system was
not influenced by the type of fertilizer used, keeping constant the light rate in the different
fertilization. The use of sewage sludge is favorable both for the initial development of Teca
as plants for soybean yield, being recommended in agrossilviculturals systems.
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ABREU, S. A. H. Crescimento inicial de teca e produtividade de soja sob diferentes adubações em sistema agrossilvicultural. 2016. 70 f. Dissertação (Mestrado em Agronomia) - Universidade Federal de Goiás, Goiânia, 2016.