Abstract
Rice residue management can influence weed dynamics and productivity of subsequent wheat crop. A field experiment was conducted at Agronomic Research Area, University of Agriculture, Faisalabad during Rabi 2010-11 to evaluate the influence of two broad spectrum post-emergence herbicides (isoproturon+carfentrazone and iodo+mesosulfuron) on wheat and associated weeds under different rice residue management options (residue incorporation, residue burning and zero tillage). The experiment was laid out in randomized complete block design under split plot arrangements. Residue management options were assigned to main plots while weed control treatments were maintained in sub-plots. Zero tillage was helpful in averting weed growth and recorded more wheat grain yield even under weedy check as compared to the rest of the residue management options. Residue incorporation resulted higher weed density and biomass than residue burning. Both the herbicides provided >80% suppression in weed density and dry biomass with upper limit (100%) recorded when isoproturon+carfentrazone was applied to zero tillage plots. The herbicide treatments also improved wheat leaf area indices, crop growth rate and dry matter accumulation over weedy check under all residue management options. Maximum grain yield (3742 kg ha -1 ) was obtained when isoproturon+carfentrazone was applied to zero tillage plots. Highest economic net benefits were also associated with the same treatment combination. Zero tillage seems more appropriate residue disposal method in rice-wheat cropping system than residue burning and incorporation.
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Claims 11
Claim · model-written summary
Zero tillage averted weed growth relative to other residue options.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- Zero tillagee0
- Interactor
- weede0weed
- Outcome
- weed growthe0
- Direction
- avertinge0
- Comparator
- rest of the residue management optionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zero tillage was helpful in averting weed growth and recorded more wheat grain yield even under weedy check as compared to the rest of the residue management options”
t0“wheat”
Claim · model-written summary
Zero tillage gave more wheat grain yield even in the weedy check than other residue options.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Zero tillagee0
- Outcome
- wheat grain yielde0
- Direction
- moree0
- Qualifier
- weedy checke0
- Comparator
- rest of the residue management optionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zero tillage was helpful in averting weed growth and recorded more wheat grain yield even under weedy check as compared to the rest of the residue management options”
Claim · model-written summary
Residue incorporation led to higher weed density than burning.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Residue incorporatione0
- Interactor
- weede0weed
- Outcome
- weed densitye0
- Direction
- highere0
- Comparator
- residue burninge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Residue incorporation resulted higher weed density and biomass than residue burning”
t0“wheat”
Claim · model-written summary
Residue incorporation led to higher weed biomass than burning.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Residue incorporatione0
- Interactor
- weede0weed
- Outcome
- biomasse0
- Direction
- highere0
- Comparator
- residue burninge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Residue incorporation resulted higher weed density and biomass than residue burning”
t0“wheat”
Claim · model-written summary
Isoproturon+carfentrazone suppressed weed density and dry biomass by over 80%.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- isoproturon+carfentrazonee1
- Interactor
- weede0weed
- Outcome
- weed density and dry biomasse0
- Direction
- suppressione0
- Value
- >80%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both the herbicides provided >80% suppression in weed density and dry biomass”
e1“isoproturon+carfentrazone and iodo+mesosulfuron”
t0“wheat”
Claim · model-written summary
Iodo+mesosulfuron suppressed weed density and dry biomass by over 80%.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- iodo+mesosulfurone1
- Interactor
- weede0weed
- Outcome
- weed density and dry biomasse0
- Direction
- suppressione0
- Value
- >80%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both the herbicides provided >80% suppression in weed density and dry biomass”
e1“isoproturon+carfentrazone and iodo+mesosulfuron”
t0“wheat”
Claim · model-written summary
Isoproturon+carfentrazone under zero tillage completely suppressed weed density and dry biomass.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- isoproturon+carfentrazonee0
- Interactor
- weede1weed
- Outcome
- weed density and dry biomasse1
- Direction
- suppressione1
- Value
- 100%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“upper limit (100%) recorded when isoproturon+carfentrazone was applied to zero tillage plots”
e1“Both the herbicides provided >80% suppression in weed density and dry biomass with upper limit (100%) recorded when isoproturon+carfentrazone was applied to zero tillage plots”
t0“wheat”
Claim · model-written summary
Herbicides improved wheat leaf area index, crop growth rate and dry matter accumulation over the weedy check.
- Taxon
- wheatTriticum aestivume0
- Treatment
- herbicide treatmentse0
- Outcome
- wheat leaf area indices, crop growth rate and dry matter accumulatione0
- Direction
- improvede0
- Comparator
- weedy checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The herbicide treatments also improved wheat leaf area indices, crop growth rate and dry matter accumulation over weedy check under all residue management options”
Claim · model-written summary
Isoproturon+carfentrazone with zero tillage gave maximum grain yield of 3742 kg ha -1.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- isoproturon+carfentrazonee0
- Outcome
- grain yielde0
- Direction
- Maximume0
- Value
- 3742 kg ha -1e0
- Qualifier
- zero tillage plotse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maximum grain yield (3742 kg ha -1 ) was obtained when isoproturon+carfentrazone was applied to zero tillage plots”
t0“wheat”
Claim · model-written summary
The same herbicide and zero-tillage combination gave the highest economic net benefits.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- isoproturon+carfentrazonee1
- Outcome
- economic net benefitse0
- Direction
- Higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Highest economic net benefits were also associated with the same treatment combination”
e1“Maximum grain yield (3742 kg ha -1 ) was obtained when isoproturon+carfentrazone was applied to zero tillage plots”
t0“wheat”
Claim · model-written summary
The authors recommend zero tillage over residue burning and incorporation in rice-wheat cropping.
- Taxon
- wheatTriticum aestivume0
- Outcome
- Zero tillagee0
- Comparator
- residue burning and incorporatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zero tillage seems more appropriate residue disposal method in rice-wheat cropping system than residue burning and incorporation”
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