Claim · model-written summary
Compost rates had no effect on grain N content.
- Taxon
- spring wheat
Triticum aestivumt0 - Treatment
- Compost ratese1
- Outcome
- grain N contente1
- Direction
- no effecte1
- Setting
- eastern Québec (Canada)e3
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“spring wheat growth and N uptake”
e3“in eastern Québec (Canada)”
e1“Compost rates had no effect on grain N content”
Title
Effect of composts and inorganic fertilizers on spring wheat growth and N uptake
B. Gagnon; R. R. Simard; R. Robitaille; et al. Canadian Journal of Soil Science 1997. doi:10.4141/s96-093
Other claims from this paper (10)
- Intervention effect N rates increased wheat grain yield.
- Intervention effect Composts alone at 90 kg total N ha –1 gave lower yields than the control in the first year on the sandy loam.
- Intervention effect Commercial composts gave higher yields than dairy manure composts.
- Intervention effect Wheat showed no significant response to P and K fertilizers on either soil.
- Association Commercial composts increased straw N by 36 to 63%.
- Intervention effect Addition of IN to composts increased grain yield by 0.1 to 1.5 Mg ha −1, depending on soil and weather conditions.
- Intervention effect Addition of IN to composts increased N uptake by 4 to 55 kg N ha −1.
- Association Apparent recovery efficiency of added N was lower for composts (−14 to 15%) than for IN.
- Association Apparent recovery efficiency of added N was higher for IN (24 to 56%) than for composts.
- Recommendation In spring wheat production, composts should be considered more as organic matter amendments than as N fertilizers because of their limited N efficiency.