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Biology and control of Redroot pigweed (Amaranthus retroflexus L.) on arable land
BENDÍK, Jiří
This work is focused on pigweed species-related issues, particularly those of redroot pigweed (Amaranthus retroflexus L.), including biology, occurrence, harmfulness, spreading and possibilities to regulate the plant, which, nowadays, ranks among very dangerous and constantly spreading weed species. I therefore monitored the frequency of occurrence of redroot pigweed and other weed species grown on experimental plots during the maize vegetation season, and the effectiveness of weed regulation efforts through three registered herbicides, namely Adengo, Milagro and Callisto 480 SC. All three herbicides were appreciably very effective on redroot pigweed and delivered results proved the necessity of applying herbicides to control weed populations in today?s agricultural practices. In this respect, it can indeed be noted that a long-term regulation must be based on principles of good agro-technology practices and combine effectively sowing procedures, chemical protection and other both direct and preventive procedures.
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