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The present investigation was carried out during kharif season 2017-18 at North Pulinpur area under Khowai district, Tripura (23052.836’ N, latitude of 91035.275’ E, longitude, and 940 m above sea level). North Pulinpur is one of the drought prone areas of Khowai district, Tripura. The area falls under the subtropical hill zone, and the climate is humid. An average annual rainfall ranges from 2050-2550 mm. The soil of the experimental field was sandy loam in texture acidic in reaction with a soil PH of 4.5-5.8 and medium in fertility status with low water holding capacity. Rice field surveyed covering 435 fields of four villages (V-I, II, III and IV) the number of respective field was 102, 141, 75 and 117, respectively. Weeds indicated there were 42 species belonging to 20 families of which 22 species were broad-leaved, 10 grasses, 7 sedges and 3 aquatics. Species diversity ranking of weed community for the villages were Village-II>Village-III>Village-I>Village-IV.  Based on Sorenson’s Index of Similarity of the S value is 87.67% to 102.77%. The highest S value of 102.77% was between Village-I and Village-III, while the lowest value of 87.67% between Village-II and Village-IV. The higher S value indicated that species composition between villages was closely similar and the lower S value indicated species compositions in both villages were diverse. Out of 42 weed species, six species namely Oryza sativa (Weedy rice) followed by Echinochloa crus-galli, Leptochloa chinensis, Cynodon dactylon, Ludwigia hyssopifolia, Fimbristylis milacea were most abundant in all villages with a greater proportion of severe infestation (score of 5:41%-50% weed cover).

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