Abstract
SUMMARY A trial using a split-plot with blocks design was carried out at the INTA Balcarce Experimental Station, Argentina on a typic argiudol soil to evaluate N nutrition in wheat after different preceding crops and using two rates of N fertilization (0 and 90 kg N/ha). Wheat ( Triticum aestivum ), soyabean ( Glycine max ), sunflower ( Helianthus annuus ) and maize ( Zea mays ) were grown in different combinations for two successive years (1984/85 and 1985/86). No water stress was detected during either growing season. Nitrogen availability was altered by the previous crops grown, but the effect lasted only for one season. Wheat following maize yielded least with no N and responded most to N fertilization. The highest yields of wheat without N and the lowest response by wheat to N fertilization were found after crops of soyabean and sunflower. Wheat after a fertilized wheat crop did not respond to N fertilization because of a serious attack of take-all ( Gaeumannomyces graminis tritici ). The nitrate concentration in wheat stem bases was found to be a good estimator of the availability of soil N.
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Claims 9
Claim · model-written summary
Preceding crops changed nitrogen availability for one season.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- previous cropse0
- Outcome
- Nitrogen availabilitye0
- Direction
- alterede0
- Qualifier
- only for one seasone0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen availability was altered by the previous crops grown, but the effect lasted only for one season.”
t0“wheat”
Claim · model-written summary
Wheat after maize had the lowest yield without nitrogen fertilizer.
- Taxon
- WheatTriticum aestivume0
- Treatment
- following maizee0
- Outcome
- yieldede0
- Direction
- leaste0
- Qualifier
- with no Ne0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Wheat following maize yielded least with no N and responded most to N fertilization.”
Claim · model-written summary
Wheat after maize responded most to nitrogen fertilizer.
- Taxon
- WheatTriticum aestivume0
- Treatment
- N fertilizatione0
- Outcome
- respondede0
- Direction
- moste0
- Qualifier
- following maizee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Wheat following maize yielded least with no N and responded most to N fertilization.”
Claim · model-written summary
Wheat following soyabean had among the highest yields without nitrogen.
- Taxon
- wheatTriticum aestivume0
- Treatment
- soyabeane0
- Outcome
- yields of wheate0
- Direction
- higheste0
- Qualifier
- without Ne0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest yields of wheat without N and the lowest response by wheat to N fertilization were found after crops of soyabean and sunflower.”
Claim · model-written summary
Wheat following sunflower had among the highest yields without nitrogen.
- Taxon
- wheatTriticum aestivume0
- Treatment
- sunflowere0
- Outcome
- yields of wheate0
- Direction
- higheste0
- Qualifier
- without Ne0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest yields of wheat without N and the lowest response by wheat to N fertilization were found after crops of soyabean and sunflower.”
Claim · model-written summary
Wheat following soyabean had a low response to nitrogen fertilizer.
- Taxon
- wheatTriticum aestivume0
- Treatment
- N fertilizatione0
- Outcome
- response by wheate0
- Direction
- loweste0
- Qualifier
- after crops of soyabeane0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest yields of wheat without N and the lowest response by wheat to N fertilization were found after crops of soyabean and sunflower.”
Claim · model-written summary
Wheat following sunflower had a low response to nitrogen fertilizer.
- Taxon
- wheatTriticum aestivume0
- Treatment
- N fertilizatione0
- Outcome
- response by wheate0
- Direction
- loweste0
- Qualifier
- after crops of soyabean and sunflowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest yields of wheat without N and the lowest response by wheat to N fertilization were found after crops of soyabean and sunflower.”
Claim · model-written summary
Wheat after fertilized wheat did not respond to nitrogen fertilization during severe take-all.
- Taxon
- WheatTriticum aestivume0
- Treatment
- N fertilizatione0
- Interactor
- Gaeumannomyces graminis tritici
Gaeumannomyces graminise0pathogen - Outcome
- responde0
- Direction
- did not responde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Wheat after a fertilized wheat crop did not respond to N fertilization because of a serious attack of take-all ( Gaeumannomyces graminis tritici ).”
Claim · model-written summary
Nitrate concentration in wheat stem bases estimated soil nitrogen availability well.
- Taxon
- wheatTriticum aestivume0
- Organ / stage
- stem basese0
- Outcome
- good estimator of the availability of soil Ne0
Not reportedValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The nitrate concentration in wheat stem bases was found to be a good estimator of the availability of soil N.”
The same questions in other papers
Zea mays · yield · Triticum aestivum (wheat)Positive and negative results
8 papers in the same direction as this paper · 52 in the opposite direction
- positive
- positive
- positive
57 papers more in this group
See all 61 papers →fertilization · Gaeumannomyces graminis · Triticum aestivum (wheat)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
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.