Abstract
In 2008 to 2010, the effects of postponing N application on wheat grain yield and process quality were studied in low-yield field in Jianghan Plain in wheat. The results were as follows. When the Topdressing fertilizer N (TN) was postponed from tilling stage to jointing stage, the biomass and the SPAD value in flag leaf reduced, respectively. And grain yield, protein content in grain and stability time of paste, reduced as a result. When the topdressing fertilizer N was postponed from jointing stage to booting stage, the regularity of above index changed conversely. For the treatments with the same topdressing fertilizer date (jointing stage), the appropriate ratio of Basal dressing fertilizer (BN)to topdressing fertilizer was 3:7, with high biomass, high SPAD value in flag leaf, high grain yield and high process quality as a result. The results also indicated that the right stage for more N in organ vegetative to be transferred to grain was jointing stage and the right ratio of BN to TN was 3:7, which was the very basis for high nitrogen fertilizer utilization. Based on the above results, it was suggested that to gain high grain yield and high process quality the appropriate date for topdressing fertilizer N in low-yield field in Jianghan Plain was jointing stage and the ratio of BN to TN was 3:7.
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Claims 9
Claim · model-written summary
Moving topdressing from tilling to jointing reduced biomass.
- Taxon
- Wheat
Triticum aestivumt0 - Treatment
- Topdressing fertilizer N (TN)e0
- Outcome
- biomasse0
- Direction
- reducede0
- Comparator
- tilling stagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When the Topdressing fertilizer N (TN) was postponed from tilling stage to jointing stage, the biomass and the SPAD value in flag leaf reduced”
t0“Wheat”
Claim · model-written summary
Moving topdressing from tilling to jointing reduced flag leaf SPAD.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- Topdressing fertilizer N (TN)e0
- Outcome
- SPAD value in flag leafe0
- Direction
- reducede0
- Comparator
- tilling stagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When the Topdressing fertilizer N (TN) was postponed from tilling stage to jointing stage, the biomass and the SPAD value in flag leaf reduced”
t0“Wheat”
Claim · model-written summary
Moving topdressing to jointing reduced grain yield.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- grain yielde0
- Direction
- reducede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grain yield, protein content in grain and stability time of paste, reduced as a result”
t0“Wheat”
Claim · model-written summary
Moving topdressing to jointing reduced grain protein.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- protein content in graine0
- Direction
- reducede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grain yield, protein content in grain and stability time of paste, reduced as a result”
t0“Wheat”
Claim · model-written summary
Moving topdressing to jointing reduced paste stability time.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- stability time of pastee0
- Direction
- reducede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grain yield, protein content in grain and stability time of paste, reduced as a result”
t0“Wheat”
Claim · model-written summary
Moving topdressing from jointing to booting reversed the foregoing response
- Taxon
- WheatTriticum aestivumt0
- Outcome
- regularity of above indexe0
- Qualifier
- changed converselye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When the topdressing fertilizer N was postponed from jointing stage to booting stage, the regularity of above index changed conversely.”
t0“Wheat”
Claim · model-written summary
A basal to topdressing ratio of 3:7 at jointing gave high biomass, SPAD, yield and process quality.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- high biomass, high SPAD value in flag leaf, high grain yield and high process qualitye0
- Value
- 3:7e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the appropriate ratio of Basal dressing fertilizer (BN)to topdressing fertilizer was 3:7, with high biomass, high SPAD value in flag leaf, high grain yield and high process quality as a result.”
t0“Wheat”
Claim · model-written summary
Jointing and a 3:7 basal to topdressing ratio supported transfer of vegetative nitrogen to grain and fertilizer use.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- high nitrogen fertilizer utilizatione0
- Value
- 3:7e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the right stage for more N in organ vegetative to be transferred to grain was jointing stage and the right ratio of BN to TN was 3:7, which was the very basis for high nitrogen fertilizer utilization.”
t0“Wheat”
Claim · model-written summary
The authors recommend topdressing at jointing with a 3:7 basal to topdressing ratio.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- jointing stage and the ratio of BN to TN was 3:7e0
- Setting
- Jianghan Plaine0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the appropriate date for topdressing fertilizer N in low-yield field in Jianghan Plain was jointing stage and the ratio of BN to TN was 3:7”
t0“Wheat”
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