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| KRUCHELSKI,S.; SZYMCZAK,L.S.; DEISS,L.; MORAES,A.. |
| ABSTRACT: The aim of this study was to evaluate the establishment of the pasture of Panicum maximum cv. Aries in an environmentally protected area under levels of interspecific interaction with the weed community. The experiment started after sowing P. maximum, and it was carried out in a randomized block design with four replications and the following factors: 3 light interception levels, 2 nitrogen rates, and 7 weekly sampling dates along pasture establishment (3x2x7). The light interception treatments, determined by photosynthetically active radiation, were given by mowing weeds over the canopy of P. maximum at 40% and 70% light interception, and no mowing (uncontrolled growth of weeds and P. maximum). Topdressing application of nitrogen in the form of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Interespecific competition; Aries grass; Forage; Phytosociological indexes. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100210 |
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| DEISS,L.; MORAES,A.; PELISSARI,A.; FRANZLUEBBERS,A.J.; NETO,F.S.; PONTES,L.S.; BARRO,R.S.; SZYMCZAK,L.S.. |
| ABSTRACT Weed competition on soybean (Glycine max) growth and yield was expected to be different when managed in an agroforestry system as compared with sole-cropping without trees. Therefore agronomic practices to control weeds might need to be modified in agroforestry systems. We analyzed weed competition effects on soybean growth, grain yield, and yield components at different distances from 4year-old eucalyptus (Eucalyptus benthamii) in an alley cropping system, as well as in a sole-crop system in southern Brazil. Above-ground soybean biomass was collected throughout the growing season and a logistic function was used to model crop growth. Weed above-ground biomass sampled during the soybean cycle, and grain yield and yield components at the end of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Eucalyptus benthamii; Fire; Glycine max; Growth analysis; Interference; Integrated crop-livestock system. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100268 |
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