Vol. 11, Issue 7 (2022)

Author(s):
Shweta Priya, Ram Niwas, AS Yadav, Raghvendra Singh and Ajay Kumar

Abstract:
An agronomic investigation to study the response of integrated weed management (IWM) in wheat crop. Research was conducted during Rabi season of 2020-21 an agricultural Farm at Rama University, Kanpur 209217 (U.P) India. The experiment was laid out in RBD design with three replication and 10 different integrated weed management treatments. The results of the experiment showed that major weed flora identified in the fields were non grassy weeds (Krishnaneel, Senji, Bathua and Gajri etc.) which was dominated over grassy weeds and sedges with Anagallis arvensis being the most dominant weed. Weed free check (Two hand weeding 25 and 40 DAS) performed significantly superior to all the weed management practices. However, among weed control practices, treatment (Sulfosulfuron-ethyl + MSE @ 35 g a. i. ha) were recorded minimum weed density 8.20 m^-2 and 7.36 m^-2 at 60 DAS and 90DAS, respectively), weed dry weight (6.68 gm^-2 and 5.21 gm^-2 at 60 and 90 DAS), minimum weed index (2.96), maximum weed control efficiency, maximum dry matter accumulation per plant, maximum leaf area index, maximum length of the spike, maximum number of grains per spike (54.89), maximum grain weight (14.10 g per plant), maximum test weight (35.86 g), maximum grain yield (42.72 qha^-1), straw yield (67.71 qha^-1). Maximum biological yield (110.23 qha^-1), harvest index (38.76), was recorded under treatment T₈ (Sulfosulfuron-ethyl + MSE @ 35 g a. i. ha). Maximum B: C ratio of 3.25 was also achieved with the treatment comprising Sulfosulfuron-ethyl + MSE @ 35 g a. i. ha.