Water Protection Zones—Impacts on Weed Vegetation of Arable Soil

• Published in: Water (Basel) Vol. 15; no. 17; p. 3161
• Main Authors: Jan Winkler, Tomáš Řičica, Věra Hubačíková, Eugeniusz Koda, Magdalena Daria Vaverková, Ladislav Havel, Mariusz Żółtowski
• Format: Journal Article
• Language: English
• Published: MDPI AG 01-09-2023
• Subjects: agriculture; biodiversity; herbicides; water protection; weed flora
• ISSN: 2073-4441
• DOI: 10.3390/w15173161

The aim of this study is to evaluate the occurrence of weeds under conditions of limited herbicide use due to the protection zone of water resources. A total of 23 weed species were found in maize stands, 19 species were found in wheat stands, and 16 species were found in rapeseed stands. The redundancy analysis (RDA) results show significant differences in weed occurrence and composition due to herbicide regulation in each crop. Changes in weed composition induced by herbicide application limitations lead to a preference for more specialized weed species (specialists) at the expense of widespread species (generalists). Limiting the use of pesticides in sensitive and vulnerable areas, such as water sources, bodies, and watercourses, is justified from the perspective of protecting the aquatic environment and biodiversity. However, such measures can cause weed growth that is difficult to control, and therefore, it is important to search for new methods for weed control in field crops. Determining a balance between safeguarding water resources and addressing agricultural challenges remains crucial for sustainable land and water management.