Structure of species composition of weed plants in crops of corn on the territory of steppe zone of Кrasnodar territory
Keywords:
: weed plants, corn, floristic composition, structure, occurrence, dominant species, accompanying speciesAbstract
Corn is one of the main crops which are grown up in different countries of the world. Objective of this research is the analysis of specific structure of weed plants in crops of corn on the territory of steppe zone of cultivation in Krasnodar Territory. Long-term data (2012–2017) of monitoring of crops are systematized and processed. The floristic analysis of species composition, calculation of occurrence of species and assessment of its constancy are carried out. Eighty nine species from 74 genera and 22 families are revealed. The non-uniformity of distribution of species by families is shown. A group of 14 dominant species is allocated. These species are the most constant component of contamination of crops of corn. A group of 7 accompanying species of weed plants is allocated. These species are the supplementing contamination component. It is necessary to be guided by types of these groups at preliminary selection of chemical means of protection from weed plants.