EFFECTS OF CROP ROTATIONS ON WEED INFESTATION IN WINTER WHEAT

Z. Dolijanovic, S. Oljaca, D. Kovacevic, Z. Jovovic, N. Momirovic

Abstract: The effects of crop rotations, as one of the systems of the crop production in field plots, were studied on weed infestation in winter wheat crops. Winter wheat, as a second crop in the sowing structure, is usually cultivated in two cropping systems: continuous cropping and the two crop rotation. Based on these facts, the aim of the present study was to organise permanent crop rotations in the experimental agricultural farm of Radmilovac, a section of the Faculty of Agriculture in Belgrade. Crop rotations with different crops were established in 1992 and have been lasting ever since. Crop rotations, as a cropping practice,
are a complex category with broad effects on the soil and crops. This paper presents results on effects of various systems of the crop production (crop rotation and continuous cropping) on a weed community of a winter wheat crop during two years of investigations (2008/09 and 2009/10). Crop rotations, especially three and two crop rotations were more efficient in suppression of weed plants per species and weed biomass than continuous cropping and six crop rotations.

Keywords: continuous cropping; crop rotations; weeds; winter wheat

Date published: 2019-04-18