Abstract
In the Yaqui Valley, northwest Mexico, the crop sequence that is becoming more common consists of planting wheat ( Triticum aestivum L.) as a winter crop on a raised bed followed by maize ( Zea mays L.) as a summer crop. In this area, straw of both winter and summer crops is commonly burned. The consequences of burning crop residues on crop yields in the Yaqui Valley have not previously been documented, and alternative practices have not been proposed. A 5‐yr study was conducted at the CIANO (Centro de Investigaciones Agrı́colas del Noroeste) experiment station in Sonora, Mexico, to compare the effects of burning with other straw management strategies on wheat and maize yields. We tested two tillage systems (conventional‐tilled bed, CTB, and permanent bed, PB), five straw management treatments (incorporated with CTB and straw as stubble, partly removed, removed, or burned with PB), and seven N treatments, five applied preplant (0, 75, 150, 225, and 300 kg N ha −1 ) and two at the 1st node stage (150 and 300 kg N ha −1 ) of wheat. Maize following wheat received a uniform application of 150 kg N ha −1 . The combination of PB and straw as stubble produced superior maize and wheat grain yields in high‐yielding environments; in low‐yielding environments, PB–straw burned produced greater wheat grain yields. Nitrogen fertilizer application of 150 and 300 kg N ha −1 at the 1st node stage of wheat increased grain yields compared with preplant N fertilizer applications. Permanent beds combined with retaining all crop residues in the soil as stubble have the potential to increase both wheat and maize yields in the Yaqui Valley.
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Claims 5
Claim · model-written summary
Permanent beds with straw stubble produced superior maize grain yields in high-yielding environments.
- Treatment
- PB and straw as stubblee0
- Outcome
- maize and wheat grain yieldse0
- Direction
- superiore0
- Qualifier
- high‐yielding environmentse0
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The combination of PB and straw as stubble produced superior maize and wheat grain yields in high‐yielding environments”
Claim · model-written summary
Permanent beds with straw stubble produced superior wheat grain yields in high-yielding environments.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- PB and straw as stubblee0
- Outcome
- wheat grain yieldse0
- Direction
- superiore0
- Qualifier
- high‐yielding environmentse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The combination of PB and straw as stubble produced superior maize and wheat grain yields in high‐yielding environments”
Claim · model-written summary
Permanent beds with burned straw increased wheat grain yield in low-yielding environments.
- Taxon
- wheatTriticum aestivume0
- Treatment
- PB–straw burnede0
- Outcome
- wheat grain yieldse0
- Direction
- greatere0
- Qualifier
- low‐yielding environmentse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in low‐yielding environments, PB–straw burned produced greater wheat grain yields”
Claim · model-written summary
Nitrogen application at the first node stage increased wheat grain yield versus preplant application.
- Taxon
- wheatTriticum aestivume0
- Treatment
- 150 and 300 kg N ha −1 at the 1st node stagee0
- Outcome
- grain yieldse0
- Direction
- increasede0
- Comparator
- preplant N fertilizer applicationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen fertilizer application of 150 and 300 kg N ha −1 at the 1st node stage of wheat increased grain yields compared with preplant N fertilizer applications”
Claim · model-written summary
Permanent beds retaining crop residues as stubble may increase wheat yields in the Yaqui Valley.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Permanent beds combined with retaining all crop residues in the soil as stubblee0
- Outcome
- increase both wheat and maize yieldse0
- Setting
- Yaqui Valleye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Permanent beds combined with retaining all crop residues in the soil as stubble have the potential to increase both wheat and maize yields in the Yaqui Valley”
The same questions in other papers
fire · yield · Triticum aestivum (wheat)Results differ
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- negative
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1,736 papers in the same direction as this paper · 285 in the opposite direction · 39 reporting no difference from an alternative
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See all 2,061 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.