Conference proceedings article
Einfluss der Mykorrhizierung auf die N-Rhizodeposition der Erbse im Laufe der Vegetation

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Hupe, A.; Näther, F.; Schulz, H.; Jörgensen, R.; Heß, J.; Wichern, F.
Häring, A. M.; Hörning, B.; Hoffmann-Bahnsen, R.; Luley, H.; Luthardt, V.; Pape, J.; Trei, G.
Verlag Dr. Köster
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Beiträge zur 13. Wissenschaftstagung Ökologischer Landbau. Am Mut hängt der Erfolg: Rückblicke und Ausblicke auf die ökologische Landbewirtschaftung.

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.

Last updated on 2019-25-07 at 19:56

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