Preliminary investigation of weed vegetation in small grain fields in the area of mt. Stol near Bor

Abstract

Weed vegetation in wheat crop in the area of Mt. Stol near Bor was analyzed. Based on floristic and phytocoenological surveys of the fields under investigation, 113 taxa were determined, 20 of which are monocotyledonous and 93 dicotyledonous. High diversity regarding the taxa, life-forms and floristic elements is the result of specific climatic (arid region), geological, edaphic (porous soil) and anthropogenic influences in the region. The most frequent weed species within the analyzed phytocoenoses were: Chenopodium album, Plantago major, Polygonum persicaria, Bilderdykia convolvulus, Capsella bursa-pastoris, Chenopodium hybridum, Lactuca serriola, Anagallis arvensis, Convolvulus arvensis, Sonchus arvensis, Achillea millefolium,Viola arvensis, Sonchus oleraceus, Consolida regalis and Veronica persica.

Analizirana je korovska vegetacija ozimih strnih žita na području planine Stol (725 m n.v.; N= 44° 10', E= 22° 6'; N= 44° 09', E= 22° 06'). Na osnovu kvalitativno kvantitativne procene korovskih vrsta utvrđeno je 113 taksona, 20 monokotila i 93 dikotile. Najfrekventnije korovske vrste su: Chenopodium album, Plantago major, Polygonum persicaria, Bilderdykia convolvulus, Capsella bursa-pastoris, Chenopodium hybridum, Lactuca serriola, Anagallis arvensis, Convolvulus arvensis, Sonchus arvensis, Achillea miìlefolium, Viola arvensis, Sonchus oleraceus, Consolida regalis i Veronica persica. U analiziranim fitocenozama strnih žita u velikom stepenu su zastupljene hemikriptofite, a to je osnovna životna forma livadske vegetacije (npr. Achillea miìlefolium, Agrostis alba, A.vulgar is, Alyssum markgrafii, Crépis biennis, Festuca pratensis, Leucanthemum vulgäre, Poa pratensis, Thalictrum lucidum, Veronica jacauinii itd. To je još jedna potvrda o ekstenzivnosti ovog područja u pogledu biljne proizvodnje. Znači, neophodni su određeni meliorativni i tehnološki zahvati u cilju poboljšanja biljne proizvodnje i smanjenja zakorovljenosti obradivih površina.