Procena aktivne rezerve semena korovskih biljaka u zemljištu

Abstract

Poznavanje i razumevanje veličine i sastava rezerve semena korovskih biljaka može pomoći kod planiranja uspešne i pravovremene strategije suzbijanja korova i procene dinamike pojave korova. Veoma je značajano imati u vidu u kom procentu će latentna biljna zajednica preći u aktivnu zajednicu. Metodom naklijavanja dobija se broj i struktura semena korovskih biljaka koja su prošla fazu mirovanja. Utvrđeno je da u monokulturi soje od ukupne procenjene rezerve semena korovskih biljaka preko 25,9% je spremno da klija, dok u tropoljnom plodoredu 23,61% semena. Najveći broj klijalih semena potiče od korovskih vrsta Chenopodium album i Chenopodium hybridum.

Knowledge and understanding of the size and composition of soil weed seed reserves can help in planning a successful and timely weed control strategy and assessing the dynamics of weed emergence. It is very important to have an insight into what percentage of the latent plant community will pass into the active community. The seedling emergence method gives the number and structure of seeds that have passed the dormancy phase. It was determined that in the monoculture of soybean 24.9% of seeds are ready to germinate out of the total estimated weed seed bank, while in the three-field crop rotation 23.61% of seed. The largest number of germinated seeds comes from the weed species Chenopodium album and Chenopodium hybridum.