Effect of Integrated Weed Management on the Yield Performance of Wheat

Abstract

We conducted our experiment from November 2019 to March 2020 in Agronomy Field Laboratory, Department of Agronomy, Bangladesh Agricultural University (BAU), Mymensingh. The purpose of this investigation was to examine the effects and relative effectiveness of various weed management strategies concerning integrated wheat weed management. The experiment comprised three replication group it was developed up of fourteen weeding regime treatments, namely, unweeded, mulching by rice straw, mulching by water hyacinth , two hand weeding at 25 and 35 DAS, preemergence herbicide, pre-emergence herbicide + hand weeding at 35 DAS, pre-emergence herbicide + mulching by water hyacinth, post-emergence herbicide, stale seed bed + post-emergence herbicide, post-emergence herbicide + hand weeding at 35 DAS, post-emergence herbicide + mulching by rice straw, post-emergence herbicide + mulching by water hyacinth, pre-emergence herbicide + post-emergence herbicide, pre-emergence herbicide + post-emergence herbicide + hand weeding at 35 DAS. The experiment was established up using randomized complete block design. Records were kept of data on several aspects. The majority of the yield-contributing characteristics were much greater when rice straw was mulched after emergence along with herbicide. The experiment showed that the longest plant height (82.93 cm), number of effective tillers hill-1 (3.70), number of total tillers hill-1 (4.13), longest panicle length (9.35 cm), number of total spikelet’s spike-1 (19.28), number of effective spikelet’s spike-1 (15.56), number of grains panicle-1 (35.52), highest grain yield (6.92 t ha-1 ), and highest stover yield (13.25 t ha-1 ) of post-emergence herbicide + mulching by rice straw was revealed among the various weeding regime treatments. This finding suggests that in the BAU Agronomy Field Laboratory, post-emergence herbicide combined with a rice straw mulching regime increased yield.