Publikationen
2020
Bleisteiner, N.; Hamberger, S.; Heinz, M.; Steigerwald, T.; Seubert, K.; Bauer, B.; Bauer, S.; Noack, P. O.
Flach ins Feld statt spritzen Artikel
In: Bayrisches Landwirtschaftliches Wochenblatt BWagrar, Bd. 5, 2020.
BibTeX | Schlagwörter: Ackerbau, Agroecology
@article{N.2020b,
title = {Flach ins Feld statt spritzen},
author = {N. Bleisteiner and S. Hamberger and M. Heinz and T. Steigerwald and K. Seubert and B. Bauer and S. Bauer and P. O. Noack
},
editor = {Deutscher Landwirtschaftsverlag DLV},
year = {2020},
date = {2020-01-01},
urldate = {2020-01-01},
journal = {Bayrisches Landwirtschaftliches Wochenblatt BWagrar},
volume = {5},
keywords = {Ackerbau, Agroecology},
pubstate = {published},
tppubtype = {article}
}
2019
Heuermann, D.; Gentsch, N.; Boy, J.; Schweneker, D.; Feuerstein, U.; Groß, J.; Bauer, B.; Guggenberger, G.; von Wirén, N.
Interspecific competition among catch crops modifies vertical root biomass distribution and nitrate scavenging in soils Artikel Open Access
In: Scientific reports, Bd. 9, Nr. 1, S. 11531, 2019, ISSN: 2045-2322.
Abstract | BibTeX | Schlagwörter: Agroecology, Plant Ecology | Links:
@article{Heuermann.2019,
title = {Interspecific competition among catch crops modifies vertical root biomass distribution and nitrate scavenging in soils},
author = {D. Heuermann and N. Gentsch and J. Boy and D. Schweneker and U. Feuerstein and J. Gro\ss and B. Bauer and G. Guggenberger and N. von Wir\'{e}n },
url = {https://rdcu.be/b8hW2},
doi = {10.1038/s41598-019-48060-0},
issn = {2045-2322},
year = {2019},
date = {2019-01-01},
urldate = {2019-01-01},
journal = {Scientific reports},
volume = {9},
number = {1},
pages = {11531},
abstract = {The potential of a plant species to acquire nutrients depends on its ability to explore the soil by its root system. Co-cultivation of different species is anticipated to lead to vertical root niche differentiation and thus to higher soil nutrient depletion. Using a qPCR-based method we quantified root biomass distribution of four catch crop species in vertical soil profiles in pure vs. mixed stands. Pure stands of mustard and phacelia robustly reached 70 cm soil depth, while oat preferably colonized upper soil layers, and clover developed the shallowest and smallest root system. Analysis of residual nitrate pools in different soil depths and correlation with root biomass showed that, besides rooting depth also root biomass determines soil nitrogen depletion. While occupying the same vertical niches as in pure stands, mustard and phacelia dominated total root biomass of the mix. In contrast, root biomass of clover and oat was severely suppressed in presence of the other species. Below-ground biomass profiling indicated low niche complementarity among the root systems of the examined species. Nonetheless, the mixture mostly overyielded root biomass of the pure stands and thus shows higher potential for efficient soil exploration by roots.},
keywords = {Agroecology, Plant Ecology},
pubstate = {published},
tppubtype = {article}
}
The potential of a plant species to acquire nutrients depends on its ability to explore the soil by its root system. Co-cultivation of different species is anticipated to lead to vertical root niche differentiation and thus to higher soil nutrient depletion. Using a qPCR-based method we quantified root biomass distribution of four catch crop species in vertical soil profiles in pure vs. mixed stands. Pure stands of mustard and phacelia robustly reached 70 cm soil depth, while oat preferably colonized upper soil layers, and clover developed the shallowest and smallest root system. Analysis of residual nitrate pools in different soil depths and correlation with root biomass showed that, besides rooting depth also root biomass determines soil nitrogen depletion. While occupying the same vertical niches as in pure stands, mustard and phacelia dominated total root biomass of the mix. In contrast, root biomass of clover and oat was severely suppressed in presence of the other species. Below-ground biomass profiling indicated low niche complementarity among the root systems of the examined species. Nonetheless, the mixture mostly overyielded root biomass of the pure stands and thus shows higher potential for efficient soil exploration by roots.