Распространение сорных растений в регионах (на примере Алтайского края и Ленинградской области)

Abstract

A comparison of the species diversity of weeds growing in agrophytocenoses of the Leningrad region and the Altai territory by species composition, frequency of occurrence in the fields of the studied regions. Identified species occur very often, often, usually, rarely and singly. There is a significant similarity in the species composition of the most common species.