Einfluss der Mykorrhizierung auf die N-Rhizodeposition der Erbse im Laufe der Vegetation (original) (raw)

Hupe, Anke; Näther, Franziska; Schulz, Hannes; Jörgensen, Rainer Georg; Heß, Jürgen and Wichern, Florian (2015) Einfluss der Mykorrhizierung auf die N-Rhizodeposition der Erbse im Laufe der Vegetation. Paper at: 13. Wissenschaftstagung Ökologischer Landbau, Hochschule für nachhaltige Entwicklung Eberswalde, 17. - 20. März 2015.

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Summary in the original language of the document

Below-ground plant N (BGN) of grain legumes is an important N pool for subsequent crops. Especially the easily available rhizodeposits (RD) provide an important N input, which might also be relevant in mixed stands. The objective of the present study was to estimate the time course of the BGN, especially RD-N, and the effect of mycorrhization on RD-N. Therefore, the quantity of RD-N of peas with and without mycorrhiza (Frisson and P2) was estimated at four different growth stages. The results show that the relative contribution of BGN to total plant N was equal in both varieties during the growing season. The contribution of RD-N to total plant N decreased over time. Mycorrhization did not affect the quantity of N-rhizodeposition. Consequences for mixed cropping systems will be further investigated in the project.

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