Abstract
Despite the large winter wheat yield gap in Kansas, limited research is available on integrated agronomic practices to increase grain yield. Our objective was to quantify the contribution of individual and combined management practices to reduce wheat yield gap. An incomplete factorial treatment structure established in a randomized complete block design was conducted in three locations in Kansas during 2016–2017 to evaluate the impacts of 14 treatments on yield and grain protein concentration of the modern wheat variety ‘Everest.’ We individually added six treatments to a low-input standard control or removed from a high-input intensive control, which received all treatments. Treatments were: additional nitrogen, sulfur or chloride, increased plant population, foliar fungicide, and plant growth regulator. In Manhattan, the intensive control increased grain yield by 6 bu/a as compared to the standard control, mostly led by additional nitrogen, sulfur, increased population, and fungicide (3–6 bu/a). In Belleville and Hutchinson, foliar fungicide increased grain yield on average by 19 bu/a. Additional nitrogen was the only treatment that increased grain protein concentration across all locations. Our results suggest that integrated pest management should be preferred over an intensive program with prophylactic pesticide application.
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Claims 5
Claim · model-written summary
The intensive program increased yield by 6 bu/a versus the standard control in Manhattan.
- Taxon
- Winter Wheat
Triticum aestivumt0 - Treatment
- intensive controle0
- Outcome
- grain yielde0
- Direction
- increasede0
- Value
- 6 bu/ae0
- Comparator
- standard controle0
- Setting
- Manhattane0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In Manhattan, the intensive control increased grain yield by 6 bu/a as compared to the standard control”
t0“Winter Wheat”
Claim · model-written summary
Additional nitrogen, sulfur, increased population and fungicide contributed 3–6 bu/a to grain yield in Manhattan.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- additional nitrogen, sulfur, increased population, and fungicidee0
- Outcome
- grain yielde0
- Direction
- increasede0
- Value
- 3–6 bu/ae0
- Setting
- Manhattane0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In Manhattan, the intensive control increased grain yield by 6 bu/a as compared to the standard control, mostly led by additional nitrogen, sulfur, increased population, and fungicide (3–6 bu/a)”
t0“Winter Wheat Yield Gap in Kansas”
Claim · model-written summary
Foliar fungicide increased grain yield by 19 bu/a on average in Belleville and Hutchinson.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- foliar fungicidee0
- Outcome
- grain yielde0
- Direction
- increasede0
- Value
- 19 bu/ae0
- Setting
- Belleville and Hutchinsone0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In Belleville and Hutchinson, foliar fungicide increased grain yield on average by 19 bu/a.”
t0“Winter Wheat”
Claim · model-written summary
Additional nitrogen alone increased grain protein concentration across every location.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- Additional nitrogene0
- Outcome
- grain protein concentratione0
- Direction
- increasede0
- Qualifier
- across all locationse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Additional nitrogen was the only treatment that increased grain protein concentration across all locations.”
t0“Winter Wheat”
Claim · model-written summary
The authors favor integrated pest management over prophylactic intensive pesticide application.
- Taxon
- Winter WheatTriticum aestivumt0
- Outcome
- integrated pest management should be preferred over an intensive program with prophylactic pesticide applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Our results suggest that integrated pest management should be preferred over an intensive program with prophylactic pesticide application.”
t0“Winter Wheat”
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