Vol. 12, Issue 9 (2023)

Author(s):
Monu Kumar, Dinesh Sah, Shipra Yadav, Vikash Singh, Rinku Kumar and Kamaran Azam

Abstract:
Crop weed competition is most common under limited resources conditions. Weeds compete with cultivated crops for resources also encourage other biotic problems like pest and disease problems, serve as alternate host for deleterious insects and pathogens, increase the cost of production and reduce the market value of crops. Phyto-sociological study gives an assessment of weeds of importance in a particular area with fact and figures; provide overall information on the species-wise distribution in and around crops of a given area and; compare and classify weeds in a crop-weed ecosystem. Phytosociological studies of weeds are necessary for understanding the relationship between crops and their weed flora and may be useful, as a tool for developing a sustainable long-term weed management strategy. The structure and composition of vegetation in the agricultural fields have been compared in terms of frequency, density, abundance and their relative values and Importance Value Index (IVI).