Abstract
A field study was conducted in northern France over two consecutive years to evaluate the combined effect of conventional tillage (CT) vs no till (NT) with or without cover crops (cc) and nitrogen (N) fertilization on various agronomic traits related to N use efficiency in winter wheat. Five years after conversion of CT to NT, significant increases in N use efficiency, N utilization efficiency, N agronomic efficiency, N partial factor productivity, N apparent recovery fraction and N remobilization were observed under three N fertilization regimes (0, 161, 215 kg ha−1). It was also observed that grain yield and grain N content were similar under CT and NT. The N nutrition index was higher under NT at the three rates of N fertilization. Moreover, N use efficiency related traits were increased in the presence of cc both under NT and CT. Thus, agronomic practices based on continuous NT in the presence of cc, appear to be promising strategies to increase N use efficiency in wheat, while reducing both the use and the loss of N-based fertilizers.
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Claims 6
Claim · model-written summary
No tillage increased six nitrogen use efficiency traits across three fertilizer rates.
- Taxon
- Winter Wheat
Triticum aestivumt0 - Treatment
- NTe0
- Outcome
- N use efficiency, N utilization efficiency, N agronomic efficiencye0
- Direction
- increasese0
- Qualifier
- under three N fertilization regimes (0, 161, 215 kg ha−1)e0
- Comparator
- CTe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Five years after conversion of CT to NT, significant increases in N use efficiency, N utilization efficiency, N agronomic efficiency, N partial factor productivity, N apparent recovery fraction and N remobilization were observed under three N fertilization regimes (0, 161, 215 kg ha−1).”
t0“Winter Wheat”
Claim · model-written summary
Grain yield was similar under conventional and no tillage.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- NTe0
- Outcome
- grain yielde0
- Direction
- similare0
- Comparator
- CTe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grain yield and grain N content were similar under CT and NT.”
t0“Winter Wheat”
Claim · model-written summary
Grain nitrogen content was similar under conventional and no tillage.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- NTe0
- Outcome
- grain N contente0
- Direction
- similare0
- Comparator
- CTe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grain yield and grain N content were similar under CT and NT.”
t0“Winter Wheat”
Claim · model-written summary
Nitrogen nutrition index was higher under no tillage at three fertilizer rates.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- NTe0
- Outcome
- N nutrition indexe0
- Direction
- highere0
- Qualifier
- at the three rates of N fertilizatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The N nutrition index was higher under NT at the three rates of N fertilization.”
t0“Winter Wheat”
Claim · model-written summary
Cover crops increased nitrogen use efficiency related traits under both tillage systems.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- cce0
- Outcome
- N use efficiency related traitse0
- Direction
- increasede0
- Qualifier
- both under NT and CTe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N use efficiency related traits were increased in the presence of cc both under NT and CT.”
t0“Winter Wheat”
Claim · model-written summary
Authors propose continuous no tillage with cover crops to improve nitrogen efficiency and reduce fertilizer use and loss.
- Taxon
- wheatTriticum aestivume0
- Outcome
- continuous NT in the presence of cce0
- Qualifier
- increase N use efficiency in wheat, while reducing both the use and the loss of N-based fertilizerse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“agronomic practices based on continuous NT in the presence of cc, appear to be promising strategies to increase N use efficiency in wheat, while reducing both the use and the loss of N-based fertilizers.”
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