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2012, vol. 21, iss. 1, pp. 41-50
Weed flora in organic production of carrot: Daucus carota l. (Apiaceae, araliales)
University of Novi Sad, Faculty of Agriculture

emailbrana@polj.uns.ac.rs
Project:
Organic agriculture: Improvement of production by use of fertilizers, biopreparates and biological measures (MESTD - 31027)

Keywords: organic production; weeds; ecological and plant-geographic analysis; carrot
Abstract
Because the infestation is one of the biggest problems in organic production, the aim of this study was to investigate the weed flora in carrot (Daucus carota L.), in the open area, and its ecological and plant-geographic analysis as a good starting point in the choice of measures for the control of weeds. Floristic surveys were conducted during the growing season 2011-2012 at the farms for organic agriculture in Totovo selo, Ljutovo and Kelebija (Vojvodina Province). There were recorded 22 weed species, of which 12 were weed-ruderal, 6 were segetal, 2 were ruderal and 2 were weeds of meadows and pastures. Most of the detected weeds had flowering time from June till September. The analysis of weeds life forms indicates on terophytic character of investigated flora (therophytes were present with 77.28%). The plant-geographic analysis showed the dominance of the plants of wide distribution (90.91%). Based on the ecological analysis of weeds in crop of carrot, the site of analyzed agroecosystems were characterized as: moderately moist (F - 2.55), neutral chemical reactions (R - 3.18), relatively rich in minerals (N - 3.86) with high content of organic matter (H - 3.00), moderately aerated (D - 3.77) and unsalted (S - 81.82%). In analyzed weed flora bioindicators of warm (T - 4.00) and a well-lit site (L - 3.82) were dominant and were adapted to the conditions of moderate continental climate of the study area (K - 3.05).
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article language: Serbian
document type: Scientific Paper
published in SCIndeks: 02/09/2013

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