The role of spacial arrangement of maize in crop vs. weed competition | Uloga prostornog rasporeda kukuruza u kompeticiji s korovima
2008
Simic, M., Institut za kukuruz Zemun Polje, Beograd - Zemun (Serbia) | Stefanovic, L., Institut za kukuruz Zemun Polje, Beograd - Zemun (Serbia) | Maletic, R., Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Filipovic, M., Institut za kukuruz Zemun Polje, Beograd - Zemun (Serbia)
The effect of plant arrangement pattern of maize, in combination with the application of different herbicide rates, on weediness and maize yields were studied at the Maize Research Institute Zemun Polje, Belgrade - Zemun (Serbia) during 2004 and 2005. Different plant arrangement patterns were designed by combining three inter-row distances (70, 50 and 35 cm) as well as by plant spacing at uniform population density. Subvariants included the application of isoxaflutole + acetochlor herbicides after sowing but prior to maize emergence at three rates: recommended, half of the recommended rate and without herbicide treatment. The number of plants per species, fresh weight of weeds, biomass and grain yield of maize were analysed. Although there were no statistical significances, the number of plants per species and fresh weight of weeds declined with the decrease in inter-row distance and, on the average, their values were the lowest in the 35-cm variant in both years 2004 and 2005. The different rates of herbicide application significantly affected weedness by reducing it in both years of investigation. Maize grain yield did not vary over treatments with the recommended and half the recommended rate at the different inter-row distances and on the average.
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