Claim · model-written summary
Wheat yield did not decline long term at Merredin or Beverley.
- Taxon
- Wheat
Triticum aestivume2 - Outcome
- yield declinee1
- Direction
- note0
- Setting
- Merredin or Beverleye0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but not at Merredin or Beverley”
e1“There was a long term yield decline, with and without nitrogen, on the site at Wongan Hills, but not at Merredin or Beverley”
e2“Wheat was grown for twelve successive years”
Title
Effect of successive cropping with nitrogenous fertilizers on wheat yields
MG Mason; WJ Toms Australian Journal of Experimental Agriculture and Animal Husbandry 1975. doi:10.1071/ea9750823
Other claims from this paper (4)
- Observation Wheat yield declined long term at Wongan Hills with and without nitrogen.
- Observation Across the three sites, maintaining wheat yields did not require increasing nitrogen rates over time.
- Intervention effect The highest annual ammonium sulphate rate depressed wheat yields in most years at Wongan Hills and Merredin.
- Observation Wheat grain protein contents were low and did not decrease with time.