Effect of different integrated weed management practices on yield and economics of dry direct seeded rice

Abstract

to study effect of different integrated weed management practices on yield and economics of dry direct seeded rice in tarai region. Higher grain yield, biological yield, harvest index characters were recorded under pre emergence application of pendimethalin fb penoxsulam (PoE) fb 1HW 45 DAS at 25 cm spacing which was statistically at par with stale seed bed with shallow tillage fb application of pre-emergence application of pendimethalin fb 1 mechanical weeding (MW) with conoweeder at 25 DAS along with 1HW at 45 DAS, mulch fb penoxsulam (PoE) fb 1HW at 45 DAS, Sesbania line sowing with pre-emergence application of Pendimethalin fb 1 mechanical weeding fb 1HW at 45 DAS and stale seed bed with shallow tillage fb Sesbania line sowing fb pre-emergence pendimethalin fb brown manuring with 2,4-D at 500 g/ha fb1 HW at 45 DAS. Whereas, benefit cost ratio was found higher (2.1) under pre emergence application of pendimethalin fb penoxsulam(PoE) fb 1HW 45 DAS at 25 cm spacing which was statistically at par with stale seed bed with shallow tillage fb application of pre-emergence application of pendimethalin fb 1 mechanical weeding (MW) with conoweeder at 25 DAS along with 1HW at 45 DAS, mulch fb penoxsulam (PoE) fb 1HW at 45 DAS and Sesbania line sowing with pre-emergence application of pendimethalin fb 1 mechanical weeding fb 1HW at 45 DAS. From the study it can be concluded that above three integrated practices were same effective as recommended practice for controlling weed with higher return.

Response of Nutrient and Weed Management Techniques on Semi Dry Rice Growth, Yield Parameters and Yield in Telangana

“…The availability of continuous, slow and adequate nutrients especially nitrogen throughout the crop growth period synchronizing with assimilation and absorption pattern by crop contributed to the highest dry matter accumulation which indicated the superior effect of organic manures compared to inorganics alone. The findings agree with Shalini et al (2017) and Ajmal (2020).…”

Assessing the Impact of Integrated Nutrient Management Practices on Growth and Yield Performance of Direct Seeded Rice in Dystrudepts of Nagaland

“…According to Bajpai et al (2022), the early emergence of primary and secondary tillers at the vegetative stage being supported with adequate proper nutrient supply and translocation of food materials towards reproductive parts contributed to a higher number of panicle plant -1 . Continuous and even distribution of nutrients at peak demand resulted in more grains panicle -1 , which attributed to better translocation of carbohydrates from source to sink (Shalini et al, 2017). Behera and Pany (2021) opined that the increase in yield might be due to the higher availability of nutrients and optimum soil properties in the plots receiving inorganic and organic fertilizers.…”