To obtain high yields of winter wheat, it is important to control the contamination crops with weeds. It known that yield losses can be 30% or more due presence segetal vegetation in wheat crops. With intensive technology growing chemical method protection against weeds an extremely element. The paper highlights data on species composition and class agrocenosis. effectiveness herbicides their t...

The influence of man-made pollution on the accumulation copper and zinc in soil plants forest park zones Yelets was studied example woody–plant natural environment components prevailing them hanging birch (Betula pendula Roth) creeping wheatgrass (Elytrigia repens) . As a result conducted studies, features deposition plant organs were revealed, total elements under green plantations estimated.

The research presents the problem of liquidation dumps substandard raw materials zeolite-containing rocks Holinsky deposit, measures for reclamation disturbed lands. most effective way to restore ecosystems is renaturation. Time intervals succession are considered. Renaturation lands consists 6 stages. Possible dominant plants proposed options considered in detail: Stipa lessingiana, Poa platen...

Stored seeds deteriorate over time and must be regenerated to ensure that the benefits of ex situ conservation are realized. Prediction of seed longevity is based on the seed viability equation. This equation has four constants which are species specific. The aim of this project is the estimation of these constants and prediction of regeneration frequency for Elytrigia elongata, Dactylis glomer...

Potatoes are one of the most responsive crops for grooming techniques since in period from seedlings before closing rows easily suppressed by weeds that take away nutrients, water, light it. The factor causes high harm to potatoes is weed. By absorbing a large number nutrients and moisture soil, inhibit growth development plants, reducing their potential productivity. purpose study was establis...