Effect of number of seedlings hill-1 and weeding on the yield of aus rice cv.BR16

Abstract

An experiment was conducted to ascertain the impact of weeding and the number of seedlings per hill^-1 on the performance of aus rice (cv. BR16). The treatments consisted of three weeding methods and four levels of seedlings hill^-1 in a randomized complete block design with three replications. The number of weeding had an impact on weed dry weight, according to the results. Compared to not weeding, one and two-hand weeding decreased the dry weight of weeds. The degree of shrinkage was greater while weeding with two hands. The number of seedlings hill^-1 had a substantial impact on yield and all plant morphological parameters, according to data on yield and yield-contributing characteristics of aus rice. With criteria like total tillers hill^-1, effective tillers hill^-1, grains panicle^-1 , the weight of 1000 grains, grain yield (5.02 t ha^-1 ), biological yield, and harvest index, four seedlings hill^-1 achieved the maximum yield. In 8 seedling hill^-1 , the lowest grain yield (2.58 t ha^-1 ) was discovered. Except for non-effective tillers hill^-1 and panicle length, all yield-contributing features were strongly impacted by the amount of weeding. Two-hand weeding resulted in the best grain production (5.04 t ha^-1 ) and one weeding produced the lowest yield (3.46 t ha^-1 ). Except for plant height, ineffective tillers hill^-1 , unfilled grains panicle^-1 , and weight of 1000 grains, the interaction impact of the number of seedlings hill^-1 and weeding was found to be significant for the yield-contributing features. With two hands weeding at 20 and 40 DAS, the maximum grain production (5.79 t ha^-1 ) was recorded from 4 seedling hills^-1 .