Claim · model-written summary
The amount of available copper in soil increased as soil pH was lowered by ammonium sulfate addition.
- Taxon
- oat
Avena sativae1 - Treatment
- ammonium sulfate additione5
- Outcome
- amount of available copper in the soile5
- Direction
- increasede5
- Qualifier
- with the lowering of soil pHe5
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue
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)”
e5“as the amount of available copper in the soil increased with the lowering of soil pH due to ammonium sulfate addition”
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.
- Intervention effect High amounts of ammonium sulfate made the effect of high copper amounts on oat small.
- 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.
- 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.