Claim · model-written summary
In soils with comparable nitrogen supply, skeleton weed density governed the crop response to applied nitrogen
- Taxon
- wheat and oats
Avena sativa
Triticum aestivume0 - Treatment
- applied nitrogene2
- Interactor
- skeleton weede2weed
- Outcome
- crop's response to applied nitrogene2
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of skeleton weed competition on the yield of wheat and oats was investigated in seasons when rainfall was plentiful”
e2“In soils with comparable nitrogen-supplying powers, skeleton weed density governed the crop's response to applied nitrogen”
Title
Competition between skeleton weed ( Chondrila juncea L) and cereals in relation to nitrogen supply
LF Myers; J Lipsett Australian Journal of Agricultural Research 1958. doi:10.1071/ar9580001
Other claims from this paper (11)
- Observation Nitrogen was the major factor limiting yields of wheat and oats
- Intervention effect Competition from skeleton weed was severe at low nitrogen levels and minor at high nitrogen levels
- Observation Competition had its effect early in the crop growth
- Intervention effect One MCPA application in the fallow or after crop emergence increased oat yield from 710 to 1350 lb grain per acre
- Intervention effect The MCPA spraying response on oats was equal to that from 32 lb N per acre applied at planting
- Association Early spraying gave yield responses in wheat and oats
- Association Later spraying gave responses in grain nitrogen in wheat and oats
- Association Skeleton weed reduced nitrogen supply early in crop growth
- Association Skeleton weed depressed crop yield
- Observation The study gives a new estimate of crop yield reduction due to skeleton weed
- Intervention effect Response to spraying at different times was analogous to the effect of a nitrogen application at those times