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Performance of herbicides alone or in combination for the control of weed flora in wheat (Triticum aestivum L.)

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Title Performance of herbicides alone or in combination for the control of weed flora in wheat (Triticum aestivum L.)
 
Creator Archana Kumari
 
Contributor Satish Kumar
 
Subject Single herbicide, herbicide mixtures, readymix herbicides, wheat
 
Description A field experiment was conducted during winter (rabi) season of 2011-2012 at Research Farm
of Chaudhary Charan Singh Haryana Agricultural University, Hisar, to determine the performance of
herbicides alone or in combination for control of weed flora in wheat (Triticum aestivum L.). The
experiment was conducted with four different single herbicide treatments viz metribuzin @ 210 g/ha,
clodinafop @ 60 g/ha, pinoxaden @ 40 g/ha and sulfosulfuron @ 25 g/has, five tank mix herbicide
treatments viz. clodinafop + metribuzin @ 60 + 210 g/ha, pinoxaden + metribuzin @ 40 + 210 g/ha,
sulfosulfuron + metribuzin @ 25 + 210 g/ha, fenoxaprop + metribuzin (Accord plus) @ 120 + 210 g/ha
and isoproturon + 2,4-D @ 1000 + 500 g/ha, three ready mix herbicide treatments sulfosulfuron +
metsulfuron (Total) @ 32 g/ha, mesosulfuron + iodosulfuron (Atlantis) @ 14.4 g/ha and clodinafop +
metsulfuron (Vesta) @ 60 + 4 g/ha were compared with weedy check and weed free treatments in the
randomized block design with three replications. The dominant weed flora in the experimental field
comprised of Phalaris minor and Chenopodium album. Weeds species like Melilotus indica, Rumex
dentatus, Convolvulus arvensis, Anagallis arvensis, Coronopus didymus and Circium arvensis were
also present at comparatively lower densities
Among weed control methods application of sulfosulfuron @ 25 g/ha resulted in significantly
high weed control efficiency over alone application of herbicides and in mix herbicides sulfosulfuron +
metsulfuron (Total) applied @ 32 g/ha provided significantly higher weed control efficiency, however,
it was at par with sulfosulfuron + metribuzin @ 25 + 210 g/ha. Sulfosulfuron + metribuzin applied @
25 + 210 g/ha removed 46.8 and 34.7 % N, 49.4 and 54.7 % P and 49.9 and 54.7 % K lower than alone
application of sulfosulfuron @ 25 g/ha and metribuzin @ 210 g/ha, respectively. Different tank mix
and ready mix treatments produced comparable grain and straw yield to the plots kept weed free for the
whole season. Lowest grain yield (4144 kg/ha) was recorded in weedy check plots, which resulted in to
35.9% reduction in grain yield of wheat as compared to weed free treatment. Economic parameters
such as gross return, net return and benefit: cost ratio were highest in sulfosulfuron @ 25 g/ha among
single treatments and sulfosulfuron + metsulfuron (Total) @ 32 g/ha among different mixed treatments
 
Date 2016-09-05T15:13:19Z
2016-09-05T15:13:19Z
2013
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/75471
 
Language en
 
Format application/pdf
 
Publisher CCSHAU