The effect of tillage and crop rotation on the composition of weed flora in maize based on cropping systems | Uticaj sistema obrade zemljista i plodoreda na gradju korovske zajednice useva kukuruza
2009
Milosev, D., Univerzitet u Novom Sadu, Novi Sad (Serbia). Poljoprivredni fakultet | Djalovic, I., Institut za ratarstvo i povrtarstvo, Novi Sad (Serbia) | Knezevic, A., Univerzitet u Novom Sadu, Novi Sad (Serbia). Poljoprivredni fakultet | Nikolic, Lj., Univerzitet u Novom Sadu, Novi Sad (Serbia). Poljoprivredni fakultet | Dzigurski, D., Univerzitet u Novom Sadu, Novi Sad (Serbia). Poljoprivredni fakultet | Seremesic, S., Univerzitet u Novom Sadu, Novi Sad (Serbia). Poljoprivredni fakultet | Nestorovic, S., Univerzitet u Novom Sadu, Novi Sad (Serbia). Poljoprivredni fakultet
The study was conducted in order to determine the effects of tillage and crop rotation systems on the floristic composition and structure of weed flora in maize. This investigation was performed at the experimental field of the Institute of Field and Vegetable Crops in Novi Sad (Serbia). The following treatments were evaluated: plowing (25 cm depth), chisel (25 cm depth), disking, and no-till (direct sowing). The cropping systems included maize cropping in two-year crop rotation and maize monoculture with split-plot arrangement and 4 replications. Experiment plot was 262.5 square meter (30 x 8.75 m). Weeds evaluated twice a year: in the summer (1st evaluation) and in autumn (2nd evaluation). In this study, floristic composition under the investigated cropping systems comprised 30 weed species, 21 of which were annual (17 broad-leaved species and 4 grass species), and 9 biannual (6 broad-leaves species, and 3 grass species). Therophytes were the most dominant species, irrespective of tillage, time of determination or year. The number of weed species was found lowest-to-highest under moldboard plowing, chiseling, disking, and no-till, respectively. The average number of weeds was highest in maize monoculture, compared to two-year crop rotation.
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