Open AccessDESEMPENHO DACULTURA DASOJA EM SISTEMAAGROFLORESTAL COM EUCALIPTO
Author(s) -
Alvadi Antônio Balbinot,
J. C. Franchini,
Henrique Debiasi,
Fernando Sichieri
Publication year - 2018
Publication title -
colloquium agrariae
Language(s) - English
Resource type - Journals
ISSN - 1809-8215
DOI - 10.5747/ca.2018.v14.n3.a228
Subject(s) - eucalyptus , agronomy , crop , shoot , biology , botany
Agroforestry system with eucalyptus and soybean crop is an option for soil use under sandy soilsand warm climates. The objective of this work was to evaluate the performance of the soybean crop associated to simple rows of eucalyptus maculata in the Northwest region of Paraná, Brazil. The experiment was establishedin October 2009; since then, eucalyptus maculata interrows has been yearly grown with a double crop ofsoybean(summer) andU. ruziziensis(winter). The soybean performancewas evaluated in the 2015/16 cropping season, attwo eucalyptus row spacings, 14 and 28 m. Acontiguous, treelessarea, grown yearly with soybean (summer)/U. ruziziensis(winter) double crop, was used as a control. The soybean growth and shoot nitrogen accumulationat full bloomingwere reduced as a function of eucalyptus interference, in a greater intensity at 14-m eucalyptus row spacing. Soybean yield reductions caused by eucalyptus trees were65and 44% in relation to the control, at 14 and 28-m row spacings, respectively. The contents of nitrogen in soybean shoots, and protein and oil in soybean grains, were not altered by the interference of the trees