Abstract
High wheat yields, besides the genetic potential and edaphoclimatic conditions, are obtained by proper management and nitrogen use. The objective of the study was to define the most appropriate time for N-fertilizer application, considering the range of greatest wheat requirements, dependent on the succession system type and the predictability of favorable and unfavorable years. The study was carried out in the 2008 to 2012 years, in Augusto Pestana, Rio Grande do Sul, Brazil. The experimental design was randomized blocks with four replications, with N-fertilizer application at 0, 10, 30 and 60 days after emergence, considering the corn/wheat and soybean/wheat succession system. The study found that the best time for nitrogen fertilizer application on wheat is mostly influenced by the year of cultivation and is less influenced by the succession system type. The appropriate time for the N-fertilizer application in favorable years of cultivation was about 45 days after emergence. In unfavorable years, it must be anticipated. Regardless of the cultivation year and the succession system type, the N-fertilization at 30 days after emergence evidenced the highest means as the most stabile grain yield. Key words: Wheat Triticum aestivum, N-fertilizer time, optimization.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 4
Claim · model-written summary
The best nitrogen application time was influenced more by cultivation year than succession system.
- Taxon
- wheat
Triticum aestivume0 - Outcome
- best time for nitrogen fertilizer applicatione0
- Setting
- year of cultivatione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the best time for nitrogen fertilizer application on wheat is mostly influenced by the year of cultivation and is less influenced by the succession system type”
Claim · model-written summary
In favorable years, the appropriate nitrogen application time was about 45 days after emergence.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- appropriate time for the N-fertilizer applicatione0
- Value
- about 45 days after emergencee0
- Qualifier
- favorable years of cultivatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The appropriate time for the N-fertilizer application in favorable years of cultivation was about 45 days after emergence”
t0“wheat”
Claim · model-written summary
In unfavorable years, nitrogen application should be earlier.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- it must be anticipatede0
- Qualifier
- unfavorable yearse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e0“In unfavorable years, it must be anticipated”
Claim · model-written summary
Application at 30 days after emergence yielded the highest and most stable grain yield across years and succession systems.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- N-fertilization at 30 days after emergencee0
- Outcome
- grain yielde0
- Direction
- higheste0
- Qualifier
- Regardless of the cultivation year and the succession system typee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e0“Regardless of the cultivation year and the succession system type, the N-fertilization at 30 days after emergence evidenced the highest means as the most stabile grain yield”
The same questions in other papers
nitrogen · yield · Triticum aestivum (wheat)Positive and negative results
1,736 papers in the same direction as this paper · 285 in the opposite direction · 39 reporting no difference from an alternative
- no effect
- positive
- negative
2,057 papers more in this group
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.