P. Helen Kumary and G. Meerabai
Abstract
Drought-prone regions are best for jowar agriculture. Jowar is grown in semi-arid climate where other crops do not fling well. In these zones uncontrolled weeds reduces crop yield. It is obligatory to identify the weed flora, their nature and infatuation for cost-effective weed management practices. Thus the present study deals with weeds of jowar variety Mahindra cultivated fields in Kurnool district of Andhra Pradesh. Domination of the weeds was studied by using quadrate method. Based on the data collected in the field phyto -sociological attributes such as their abundance, density, frequency and their relative values and Importance Value Index (IVI) were calculated. A total number of 37 weed species belonging to 33genera and 19 families were recorded. The highest total number of individuals (181) and IVI value (32.19) was shown for Phyllanthus maderaspatensis L. of the family Euphorbiaceae. Among the total number of weed species (102) in fields of Rayalaseema, the present study revealed 37 species, i.e., 36.27% in Kurnool district. Soil analysis for various parameters in selected crop fields was conducted.