Abstract
Abstract There is a need to develop more efficient nutrient management strategies to maximize wheat ( Triticum aestivum L.) grain yields and increase grain protein levels. Urea, most widely used N fertilizer, is susceptible to substantial losses, resulting in low nitrogen use efficiency (NUE). This study assessed the effect of N and K fertilization on hard red spring wheat production under dryland no‐till conditions in Montana. A field experiment was conducted during one growing season at two locations in Northcentral Montana. Fertilizer N was applied as urea (46–0–0) or as a urea–KCl (50:50 blend) at planting to achieve two target N rates, 135 and 270 kg N ha −1 . Biomass weight, N content, and sensor‐based Normalized Vegetative Difference Index (NDVI), yield, test weight, and grain protein content of wheat was evaluated. Results indicated that: (a) N may increase wheat grain quality (protein content) even when wheat yield is not increased, (b) KCl application, along with N, may result in greater wheat biomass production and grain protein values, and (c) NDVI may be more sensitive to the amount of produced biomass than to N content of that biomass. In conclusion, even if yield response to N is minimal, N is beneficial for improving grain protein content of wheat. Addition of KCl along with N may produce greater wheat biomass and increase biomass N content. The NDVI may be more sensitive to the amount of produced biomass than to its N content.
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Claims 6
Claim · model-written summary
Nitrogen may increase wheat grain protein even without increased yield.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- Ne0
- Outcome
- protein contente0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N may increase wheat grain quality (protein content) even when wheat yield is not increased”
Claim · model-written summary
Wheat yield was not increased by N.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Ne0
- Outcome
- wheat yielde0
- Direction
- not increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N may increase wheat grain quality (protein content) even when wheat yield is not increased”
Claim · model-written summary
KCl with N may increase wheat biomass.
- Taxon
- wheatTriticum aestivume0
- Treatment
- KCl application, along with Ne0
- Outcome
- wheat biomass productione0
- Direction
- greatere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“KCl application, along with N, may result in greater wheat biomass production and grain protein values”
Claim · model-written summary
KCl with N may increase wheat grain protein.
- Taxon
- wheatTriticum aestivume0
- Treatment
- KCl application, along with Ne0
- Outcome
- grain protein valuese0
- Direction
- greatere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“KCl application, along with N, may result in greater wheat biomass production and grain protein values”
Claim · model-written summary
NDVI may be more sensitive to biomass than its nitrogen content.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- NDVIe0
- Qualifier
- more sensitive to the amount of produced biomasse0
- Comparator
- N contente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NDVI may be more sensitive to the amount of produced biomass than to its N content.”
t0“wheat”
Claim · model-written summary
KCl with N may increase wheat biomass N content.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- KCl along with Ne0
- Outcome
- biomass N contente0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Addition of KCl along with N may produce greater wheat biomass and increase biomass N content.”
t0“wheat”
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