Scientific journal
Scientific Review. Biological science
ISSN 2500-3399
ПИ №ФС77-57454

SPECIFIC COMPOSITION, QUANTITY AND BIOMASS OF WEED PLANTS IN GRAIN AGROFITOCENOSIS OF THE NORTHERN FOREST-STEPPE OF THE TYUMEN REGION

Tursumbekova G.S. 1
1 FGBOU “The state agricultural university of Northern Zauralie”
In article the characteristic of specific composition and quantity of weed plants in the agrofitocenosis of grain crops of the northern forest-steppe of the Tyumen region, and also an assessment of competitiveness of varieties of grain crops in the conditions of a contamination is given. It is noted that for years of researches in the agrofitocenosis of varieties of grain crops 20 species of weed plants which were presented by ecological groups met: mezofita, mezokserofita, gigromezofita, mezogigrofita. On quantity from group of spring early weed plants Galeopsis tetrachit, spring late – Amaranthus retroflexus, Echinochloa crusgalli, wintering – Erodium cicutarium, perennial – Sonchus arvensis prevailed. The greatest quantity of weed plants is noted in the agrofitocenosis of varieties of barley, and the smallest – at oats varieties. In the agrofitocenosis of a spring wheat the greatest competitiveness in the conditions of a contamination characterizes variety Aviada, barley – a sample G-19837, oats – a variety Megion.