Claim · model-written summary
High amounts of ammonium sulfate made the effect of high copper amounts on oat small.
- Taxon
- oat
Avena sativae1 - Treatment
- high amounts of ammonium sulfatee2
- Outcome
- effect of high amounts of coppere2
- Direction
- only smalle2
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In pot experiments with oat high amounts of copper (500 mg) copper sulfate/pot, comparable to 50 kg (Cu/ha) together with a high nitrogen supply as calcium nitrate led to a remarkable increase in yield of grain in comparison to a normal copper fertilization (50 mg copper sulfate/pot, comparable to 5 kg Cu/ha)”
e2“When using high amounts of ammonium sulfate the observed effect of high amounts of copper was only small”
Title
Der Einfluß variierter Düngergaben von Stickstoff, Kupfer und Magnesium auf den Ertrag von Hafer
H. Kühn; G. K. Judel Zeitschrift für Pflanzenernährung und Bodenkunde 1972. doi:10.1002/jpln.19721310202
Other claims from this paper (9)
- Intervention effect High copper with a high calcium nitrate nitrogen supply increased oat grain yield compared with normal copper fertilization.
- Mechanism Nitrogen fertilization as ammonium sulfate presumably increased the availability of soil and fertilizer copper by affecting soil reaction.
- Recommendation Nitrogen fertilization as calcium nitrate needs a higher copper level in the root medium to obtain maximum yield.
- Association The amount of available copper in soil increased as soil pH was lowered by ammonium sulfate addition.
- Intervention effect High copper supply to the soil reduced the harmful effect of high amounts of calcium nitrate nitrogen.
- Intervention effect High copper supply to the soil did not reduce the harmful effect of high amounts of nitrogen given as ammonium sulfate.
- Intervention effect Calcium nitrate nitrogen, especially with high copper supply, resulted in a reducing effect of magnesium deficiency on oat.
- Intervention effect An optimal magnesium supply reduced the harmful effect of high amounts of nitrogen on oat yield.
- Recommendation Soil reaction and its change by the form of nitrogen fertilizer should be considered when evaluating soil copper status and estimating copper fertilization demand.