Abstract
Beginning in 2012, research was conducted in Garden City and Tribune, KS, to determine the effect of a single tillage operation every 3 years on grain yields in a wheat-sorghum- fallow (WSF) rotation. Grain yields of wheat and grain sorghum were generally not affected by a single tillage operation every 3 years in a WSF rotation. Grain yield varied greatly by year from 2014 to 2020. Wheat yields ranged across years from mid-20s to 90 bu/a at Tribune and less than 10 to 100 bu/a at Garden City. Grain sorghum yields ranged from 40 to greater than 140 bu/a, depending upon year and location. In 2019 wheat yields at Garden City were less when tillage was implemented post-wheat harvest in 2016. There were no other years or locations where grain yields were significantly affected by a single tillage operation. However, at Tribune, when averaged across the 7-year period, a single tillage after wheat harvest reduced grain sorghum yields compared to a complete no-till (NT) system. At Garden City, averaged across the 7-year period, wheat yields were not different, but tended to be greater following a single one-time tillage prior to wheat. This indicates that if a single tillage operation is needed to control troublesome weeds, that tillage during fallow prior to wheat planting may be better than tillage after wheat harvest. This study supports the hypothesis that if herbicide-resistant weed populations are high enough to cause yield reductions, then tillage might improve yields.
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Claims 9
Claim · model-written summary
Grain yields of wheat were generally not affected by a single tillage operation every 3 years.
- Taxon
- wheat
Triticum aestivume1 - Treatment
- a single tillage operation every 3 yearse1
- Outcome
- Grain yieldse1
- Direction
- not affectede1
- Qualifier
- generallye1
- Setting
- Garden City and Tribune, KSe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Beginning in 2012, research was conducted in Garden City and Tribune, KS, to determine the effect of a single tillage operation every 3 years on grain yields in a wheat-sorghum- fallow (WSF) rotation”
e1“Grain yields of wheat and grain sorghum were generally not affected by a single tillage operation every 3 years in a WSF rotation”
Claim · model-written summary
At Tribune, a single tillage after wheat harvest reduced grain sorghum yields compared with a complete no-till system.
- Taxon
- grain sorghum
Sorghum bicolore5 - Treatment
- a single tillage after wheat harveste5
- Outcome
- grain sorghum yieldse5
- Direction
- reducede5
- Qualifier
- averaged across the 7-year periode5
- Comparator
- a complete no-till (NT) systeme5
- Setting
- Tribunee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“However, at Tribune, when averaged across the 7-year period, a single tillage after wheat harvest reduced grain sorghum yields compared to a complete no-till (NT) system”
Claim · model-written summary
At Garden City, wheat yields were not different after a single one-time tillage prior to wheat.
- Taxon
- wheatTriticum aestivume6
- Treatment
- a single one-time tillage prior to wheate6
- Outcome
- wheat yieldse6
- Direction
- not differente6
- Qualifier
- averaged across the 7-year periode6
- Setting
- Garden Citye6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“At Garden City, averaged across the 7-year period, wheat yields were not different, but tended to be greater following a single one-time tillage prior to wheat”
Claim · model-written summary
At Garden City, wheat yields tended to be greater following a single one-time tillage prior to wheat.
- Taxon
- wheatTriticum aestivume6
- Treatment
- a single one-time tillage prior to wheate6
- Outcome
- wheat yieldse6
- Direction
- tended to be greatere6
- Setting
- Garden Citye6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“At Garden City, averaged across the 7-year period, wheat yields were not different, but tended to be greater following a single one-time tillage prior to wheat”
Claim · model-written summary
In 2019, wheat yields at Garden City were lower when tillage was implemented after wheat harvest in 2016.
- Taxon
- wheatTriticum aestivume4
- Treatment
- tillage was implemented post-wheat harvest in 2016e4
- Outcome
- wheat yieldse4
- Direction
- lesse4
- Qualifier
- In 2019e4
- Setting
- Garden Citye4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“In 2019 wheat yields at Garden City were less when tillage was implemented post-wheat harvest in 2016”
Claim · model-written summary
Wheat yields at Tribune ranged across years from mid-20s to 90 bu/a.
- Taxon
- wheatTriticum aestivume2
- Outcome
- wheat yieldse2
- Value
- mid-20s to 90 bu/ae2
- Qualifier
- ranged across yearse2
- Setting
- Tribunee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Wheat yields ranged across years from mid-20s to 90 bu/a at Tribune and less than 10 to 100 bu/a at Garden City”
Claim · model-written summary
Wheat yields at Garden City ranged across years from less than 10 to 100 bu/a.
- Taxon
- wheatTriticum aestivume2
- Outcome
- wheat yieldse2
- Value
- less than 10 to 100 bu/ae2
- Qualifier
- ranged across yearse2
- Setting
- Garden Citye2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Wheat yields ranged across years from mid-20s to 90 bu/a at Tribune and less than 10 to 100 bu/a at Garden City”
Claim · model-written summary
Grain sorghum yields ranged from 40 to greater than 140 bu/a, depending on year and location.
- Taxon
- Grain sorghumSorghum bicolore3
- Outcome
- Grain sorghum yieldse3
- Value
- 40 to greater than 140 bu/ae3
- Qualifier
- depending upon year and locatione3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Grain sorghum yields ranged from 40 to greater than 140 bu/a, depending upon year and location”
Claim · model-written summary
Tillage during fallow prior to wheat planting may be better than tillage after wheat harvest for controlling troublesome weeds.
- Taxon
- wheatTriticum aestivume7
- Treatment
- tillage during fallow prior to wheat plantinge7
- Outcome
- control troublesome weedse7
- Comparator
- tillage after wheat harveste7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“This indicates that if a single tillage operation is needed to control troublesome weeds, that tillage during fallow prior to wheat planting may be better than tillage after wheat harvest”
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