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W pracy przedstawiono wyniki badań doświadczalnych nad oceną aktywności herbicydowej wyciągów wodnych z dwóch gatunków z rodzaju Solidago w stosunku do Thlaspi arvense i Stellaria media. W warunkach laboratoryjnych przygotowano wyciągi wodne z części podziemnych oraz nadziemnych Solidago gigantea i Solidago canadensis. Z wyciągów sporządzono roztwory robocze o stężeniu 10%. Jako rozpuszczalnika użyto...
Effects of ungulate pressure on the development of young generation of trees is one of the most important issues in ecology and forestry. Ungulate pressure influence on the development of natural regeneration has been also reported from several national parks. Our study on the effects of ungulate browsing on the young generation of trees was conducted on more than 500 sample plots controlled during...
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