Claim · model-written summary
Early nitrogen topdressing of unfertilized crops increased protein and yield.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- Nitrogen topdressing early in the growing seasone0
- Outcome
- protein and yielde0
- Direction
- increasede0
- Comparator
- unfertilized cropse0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Nitrogen topdressing early in the growing season to unfertilized crops increased both protein and yield”
t0“wheat”
Title
Split nitrogen applications for management of yield and protein of wheat grown in dryland
F. Selles; R. P. Zentner; C. A. Campbell; et al. 1997
Other claims from this paper (8)
- Intervention effect Nitrogen applied at seeding substantially increased grain yield.
- Intervention effect The first 20 to 40 kg N/ha at seeding decreased grain protein.
- Intervention effect At 60 or more kg N/ha at seeding, grain protein exceeded the unfertilized check.
- Intervention effect Late nitrogen topdressing of unfertilized crops increased protein only.
- Intervention effect Nitrogen topdressing of previously fertilized crops did not change grain yield.
- Intervention effect Nitrogen topdressing of previously fertilized crops slightly increased grain protein.
- Intervention effect Soil applied nitrogen topdressings tended to be less effective than foliar application.
- Observation Foliar UAN increased protein but could cause leaf burn and reduce yield and protein.