Influence of Weed Management Practice on Yield and Quality of Onion under Sub-Tropical Condition of Jammu

Effect of integrated weed management practices on the growth, yield, quality and economic of onion (Allium cepa L.)

“…The lowest yield was recorded in weedy check plots owing to low chlorophyll content and photosynthetic rate due to un-checked weed growth there by reducing the availability of moisture, light and nutrients to the crop thus resulting in loss of yield. The maximum yield was recorded in weed free plot followed by other manual/herbicidal treatments due to the favorable environmental conditions created by the clean crop culture resulted in more absorption of solar radiation and plant nutrients which ultimately resulting in more photosynthetic rates and dry matter accumulation (Angmo et al, 2018). The similar results are also published by Khan et al (2013).…”

“…Significantly higher WCE was observed under weed free check (Vishnu et al, 2015). The PE application of oxyfluorfen + POE application quizaofop ethyl at 40 DAT were found effective after weed free plots (Angmo et al, 2018;Kalhapure et al, 2013). The chemical weed control in onion is a better practice supplemented to conventional methods and forms and integral part of the modern crop production practices, as states by Angmo et al (2018).…”

“…Chemical weed control is an option in integrated weed management that refers to the integrated use of cultural, manual, mechanical and/or chemical control method. The common worldwide weed management practice in onion is pre-emergence/post emergence application of selective herbicides like pendimethalin, oxyfluorfen, oxadiazon, quizalofop ethyl, alachlor, butachlor and metolachlor followed by one hand weeding (Gyani et al, 2020;Jangre et al, 2019;Angmo et al, 2018 andDhananivetha et al, 2017) which are used alone or in different combinations. The most effective herbicide suitable for weed destruction presently in onion is oxyfluorfen as reported by Stall and Gilreath (2002).…”

“…The PE application of oxyfluorfen + POE application quizaofop ethyl at 40 DAT were found effective after weed free plots (Angmo et al, 2018;Kalhapure et al, 2013). The chemical weed control in onion is a better practice supplemented to conventional methods and forms and integral part of the modern crop production practices, as states by Angmo et al (2018). The combine application of pre-and postemergence herbicide is one of the options left with the farmers to eliminate crop weed competition at early and later stages of the crop and to achieve higher weed control efficiency (Angmo et al, 2018).…”

“…The chemical weed control in onion is a better practice supplemented to conventional methods and forms and integral part of the modern crop production practices, as states by Angmo et al (2018). The combine application of pre-and postemergence herbicide is one of the options left with the farmers to eliminate crop weed competition at early and later stages of the crop and to achieve higher weed control efficiency (Angmo et al, 2018). Pre-emergence herbicides like oxyfluorfen 23.5 EC or pendamithalin 30 EC before planting or at the time of planting effectively and economically control the weed population during the critical stages of crop growth (Sahoo and Tripathy, 2019).…”