Intervention effectmodel-written summary

Winter wheat with prior high N fertilization had more straw than with normal or reduced prior N.

A claim from Long continued applications of N fertilizer to cereals on sandy loam: grain and straw response to residual N · 2003

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Winter wheat with prior high N fertilization had more straw than with normal or reduced prior N.

Taxon
winter wheatTriticum aestivume0
Treatment
high rate of mineral fertilizer (202 kg N ha −1 yr −1 )e0
Outcome
strawe0
Direction
moree0
Comparator
normal (174 kg N ha −1 yr −1 ) or reduced (124 kg N ha −1 yr −1 ) ratee0
Setting
plotse0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleValueQualifier

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In the first test year, winter wheat grown on plots previously supplied with the high rate of mineral fertilizer (202 kg N ha −1 yr −1 ) yielded more grain and straw and had a higher total N uptake than wheat on plots previously supplied with the normal (174 kg N ha −1 yr −1 ) or reduced (124 kg N ha −1 yr −1 ) rate.”

✓ located verbatim in the source · abstract, characters 526–844

Title

Long continued applications of N fertilizer to cereals on sandy loam: grain and straw response to residual N

I.K. Thomsen; J. Djurhuus; B.T. Christensen Soil Use and Management 2003. doi:10.1111/j.1475-2743.2003.tb00280.x

Other claims from this paper (13)

Record rev-b4087779a8564e04d7943f3f1068ce357425f9665435ede1bdbb255bd93f8b3e · schema claims-v0.9 · position 2 in the model’s answer

nitrogen · yield · Triticum aestivum (wheat)Positive and negative results

2,061 papers: 1,737 positive, 324 negative or no effect

1,736 papers in the same direction as this claim · 285 in the opposite direction · 39 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative
  4. negative
  5. no effect
  6. no effect
  7. negative
  8. no effect

2,052 papers more in this group

See all 2,061 papers →

fertilization · yield · Triticum aestivum (wheat)Positive and negative results

3,438 papers: 3,115 positive, 323 negative or no effect

3,114 papers in the same direction as this claim · 284 in the opposite direction · 39 reporting no difference from an alternative

  1. no effect
  2. negative
  3. negative
  4. negative
  5. no effect
  6. no effect
  7. no effect
  8. no effect

3,429 papers more in this group

See all 3,438 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.