Weed flora in basil (Ocimum basilicum L., Lamiaceae Martynov 1820, Lamiales) grown in conventional and organic production

Abstract

This study was aimed to compare weeds occurring in basil crops grown under conventional and organic production systems. Weed flora recorded in the conventional production consisted of 16 taxa, with Setaria glauca and Portulaca oleracea dominating. Concerning the organic plots, only seven taxa were noted and dominant species were Sorghum halepense and Amaranthus retroflexus. Unexpectedly lower floristic diversity in the organic agricultural system was caused by omitted application of fertilizers during three consecutive years, still unbalanced agro ecological conditions, partial isolation of the organic plots and the presence of even four invasive weed species.

Cilj rada bio je da se ukaže na razlike u korovskoj flori bosiljka u konvencionalnom i organskom sistemu gajenja. Floru korova pri konvencionalnoj proizvodnji čini 16 taksona, a dominiraju Setaria glauca i Portulaca oleracea. U organskoj proizvodnji zabeleženo je svega sedam taksona, a dominiraju Sorghum halepense i Amaranthus retroflexus. Neočekivano manji floristički diverzitet u organskom sistemu gajenja uzrokovan je izostankom đubrenja u poslednje tri godine, još sasvim neuravnoteženim ekološkim uslovima, delimičnom izolovanošću parcela i prisustvom čak četiri invazivne vrste.