Abstract
Abstract For sustainable productivity, a winter wheat ( Triticum aestivum L.)–summer crop (corn [ Zea mays L.] or grain sorghum [ Sorghum bicolor L.])–fallow (W‐SC‐F) cropping system could benefit from optimal wheat stubble cutting height management, but only limited information is available. The objective of this study was to evaluate the effect of wheat stubble height on subsequent corn and grain sorghum yields, available soil water, crop water use, and precipitation storage efficiency in a W‐C‐F and W‐S‐F cropping system. This study was conducted from 2006 through 2020 at the Kansas State University Southwest Research‐Extension Center near Tribune, KS. The experimental design was a randomized complete block with three wheat stubble heights (high, low, and strip). Average across all years, there was a 9%–10% corn yield and 7%–11% corn biomass advantage from high and stripper harvested wheat stubble compared with low cut stubble, and a 5% sorghum yield advantage from high cut stubble compared with low cut stubble. Kernel weight of corn was the only yield component that significantly differed among stubble height treatments. Water productivity of corn in the high and stripper harvested stubble treatments (15.3 kg ha −1 mm −1 ) was significantly greater compared with the low cut stubble (14 kg ha −1 mm −1 ). Water productivity of sorghum in the high cut stubble treatment (18.9 kg ha −1 mm −1 ) was also significantly greater compared with low cut stubble (17.7 kg ha −1 mm −1 ). Total available soil water at planting (ASWP) and available soil water at harvest (ASWH) of corn were both greater for high cut stubble compared with stripper harvested stubble but total ASWP and ASWH of grain sorghum were not significantly different among stubble height treatments. We concluded that low cut wheat stubble decreased subsequent corn and grain sorghum yields in a W‐C/S‐F cropping system.
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Claims 8
Claim · model-written summary
Corn yield was 9%–10% higher with high or stripper-harvested wheat stubble than with low cut stubble
- Taxon
- corn
Zea mays subsp. mayse1 - Treatment
- high and stripper harvested wheat stubblee1
- Outcome
- corn yielde1
- Direction
- advantagee1
- Value
- 9%–10%e1
- Comparator
- low cut stubblee1
- Setting
- Tribune, KSe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“there was a 9%–10% corn yield and 7%–11% corn biomass advantage from high and stripper harvested wheat stubble compared with low cut stubble”
e0“near Tribune, KS”
Claim · model-written summary
Corn biomass was 7%–11% higher with high or stripper-harvested wheat stubble than with low cut stubble
- Taxon
- cornZea mays subsp. mayse1
- Treatment
- high and stripper harvested wheat stubblee1
- Outcome
- corn biomasse1
- Direction
- advantagee1
- Value
- 7%–11%e1
- Comparator
- low cut stubblee1
- Setting
- Tribune, KSe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“there was a 9%–10% corn yield and 7%–11% corn biomass advantage from high and stripper harvested wheat stubble compared with low cut stubble”
e0“near Tribune, KS”
Claim · model-written summary
Sorghum yield was 5% higher with high cut wheat stubble than with low cut stubble
- Treatment
- high cut stubblee2
- Outcome
- sorghum yielde2
- Direction
- advantagee2
- Value
- 5%e2
- Comparator
- low cut stubblee2
- Setting
- Tribune, KSe0
SorghumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“a 5% sorghum yield advantage from high cut stubble compared with low cut stubble”
e0“near Tribune, KS”
Claim · model-written summary
Kernel weight of corn was the only yield component that significantly differed among stubble height treatments
- Taxon
- cornZea mays subsp. mayse3
- Treatment
- stubble heighte3
- Outcome
- Kernel weighte3
- Setting
- Tribune, KSe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Kernel weight of corn was the only yield component that significantly differed among stubble height treatments”
e0“near Tribune, KS”
Claim · model-written summary
Water productivity of corn was significantly greater with high or stripper-harvested stubble than with low cut stubble
- Taxon
- cornZea mays subsp. mayse4
- Treatment
- high and stripper harvested stubble treatmentse4
- Outcome
- Water productivitye4
- Direction
- greatere4
- Value
- 15.3 kg ha −1 mm −1e4
- Qualifier
- 14 kg ha −1 mm −1e4
- Comparator
- low cut stubblee4
- Setting
- Tribune, KSe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Water productivity of corn in the high and stripper harvested stubble treatments (15.3 kg ha −1 mm −1 ) was significantly greater compared with the low cut stubble (14 kg ha −1 mm −1 )”
e0“near Tribune, KS”
Claim · model-written summary
Water productivity of sorghum was significantly greater with high cut stubble than with low cut stubble
- Treatment
- high cut stubble treatmente5
- Outcome
- Water productivitye5
- Direction
- greatere5
- Value
- 18.9 kg ha −1 mm −1e5
- Qualifier
- 17.7 kg ha −1 mm −1e5
- Comparator
- low cut stubblee5
- Setting
- Tribune, KSe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Water productivity of sorghum in the high cut stubble treatment (18.9 kg ha −1 mm −1 ) was also significantly greater compared with low cut stubble (17.7 kg ha −1 mm −1 )”
e0“near Tribune, KS”
Claim · model-written summary
Corn soil water at planting and at harvest was greater with high cut stubble than with stripper-harvested stubble
- Taxon
- cornZea mays subsp. mayse6
- Treatment
- high cut stubblee6
- Outcome
- available soil water at planting (ASWP) and available soil water at harvest (ASWH)e6
- Direction
- greatere6
- Comparator
- stripper harvested stubblee6
- Setting
- Tribune, KSe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Total available soil water at planting (ASWP) and available soil water at harvest (ASWH) of corn were both greater for high cut stubble compared with stripper harvested stubble”
e0“near Tribune, KS”
Claim · model-written summary
Sorghum total soil water at planting and at harvest did not differ among stubble height treatments
- Taxon
- grain sorghum
Sorghum bicolore7 - Treatment
- stubble height treatmentse7
- Outcome
- total ASWP and ASWHe7
- Direction
- no_changeinferrede7
- Setting
- Tribune, KSe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“but total ASWP and ASWH of grain sorghum were not significantly different among stubble height treatments”
e0“near Tribune, KS”
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