Abstract
Background: Continuous use of the similar modes of action-based herbicides leads to the development of herbicide resistance in wheat-associated weeds in north-west India. Accelerated development of multiple resistance against most of the available post-emergence herbicides emphasize the use of pre-emergence herbicides. But, the efficacy of pre-emergence herbicide is a matter of concern as surface retained stubbles and/or straw alter herbicide efficacy associated with a direct interception of herbicide. Methods: A field study was conducted for two rabi seasons (2018-19 and 2019-20) to optimize spray volume and time of application for improving the bio-efficacy of pre-emergence herbicides under zero tillage full rice residue scenario. The herbicidal treatments (g/ha) included pendimethalin + pyroxasulfone (1000.0+127.5) as pre-emergence (PE), pyroxasulfone (127.5) as PE, pyroxasulfone (127.5) as early post emergence (EPoE), aclonifen+diflufenican (1002+200) EPoE, halauxifen methyl+ fluroxypyr (7.3+233.4) as EPoE, flumioxazin (100) as PE with two different water volumes 500 and 1000 liter/ha along with pendimethalin fb pinoxaden (1500+50) in 500 l/ha water volume, pendimethalin (1500) as PE in 375 l/ha water volume, weed free and weedy check. Results: The present study showed that pendimethalin + pyroxasulfone as PE with a higher spray volume of 1000 l/ha and alone application of pyroxasulfone as EPoE produced similar Phalaris minor control as with pendimethalin fb pinoxaden (PE fb Post) under full rice residue scenario in zero-till wheat.
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Claims 2
Claim · model-written summary
Pre-emergence pendimethalin plus pyroxasulfone at 1000 l/ha gave similar Phalaris minor control to pendimethalin followed by pinoxaden.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- pendimethalin + pyroxasulfone as PE with a higher spray volume of 1000 l/hae0
- Interactor
- Phalaris minor
.jpg?width=60)
Phalaris minore0weed - Outcome
- Phalaris minor controle0
- Direction
- similare0
- Comparator
- pendimethalin fb pinoxadene0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“pendimethalin + pyroxasulfone as PE with a higher spray volume of 1000 l/ha and alone application of pyroxasulfone as EPoE produced similar Phalaris minor control as with pendimethalin fb pinoxaden (PE fb Post) under full rice residue scenario in zero-till wheat”
Claim · model-written summary
Early post-emergence pyroxasulfone gave similar Phalaris minor control to pendimethalin followed by pinoxaden.
- Taxon
- wheatTriticum aestivume0
- Treatment
- pyroxasulfone as EPoEe0
- Interactor
- Phalaris minorPhalaris minore0weed
- Outcome
- Phalaris minor controle0
- Direction
- similare0
- Comparator
- pendimethalin fb pinoxadene0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“alone application of pyroxasulfone as EPoE produced similar Phalaris minor control as with pendimethalin fb pinoxaden (PE fb Post) under full rice residue scenario in zero-till wheat”
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