WPs

Topic

Institution

PI

Content

1

Atomic and molecular scale

1-1

Overcoming P immobility

BTU

D. Freese

P-Fixation by Al- and Fe-oxides

1-2

UoR

O. Kühn

Quantum-chemical modelling P at soil matrix

1-3

Microbial P acquisition processes

UoR

C. Baum

The role of the soil microbiome for P supply of soils

TUM

M. Schloter

1-4

Spatial heterogeneity of P in subsoil

FZJ

N. Siebers

Speciation and importance for P-nutrition by ³¹P NMR, XANES, P fractionation, isotope techniques

2

Plot-to-field scale

2-1

Agronomic effectiveness of P resources

UoR

B. Eichler-Löbermann

Pot and field experiments with different P fertilizers, crops and soils

TUM

S. v. Tucher

2-2

Smart P fertilizers

JKI

K. Panten

Field experiments with new alternative P fertilizers, crops and soils

2-3

2-4

Metastudies P fertilization effects

Redox experiments using biogeochemical microcosms

UoR

BUW

UoR

U. Buczko

J. Rinklebe

K. Baumann

Data evaluations from long-term experiments and field studies, statistical data treatment, model building

geochemical and spectroscopic approaches to elucidate and determine mechanisms that control P-mobilization in water-soil systems

3

Field-to-catchment scale

3-1

Hot moments of P loss

UoR

B. Lennartz

Observation and modeling of P leaching and transport at catchment scale

3-2

Hot spots of P loss

3-3

Model development and testing

4

4-1

P analyses

UoR

P. Leinweber

XANES, ³¹P-NMR for soil samples

4-2

Quality management

and coordination of analyses

4-3

Bone char effects on P cycling

Bone char characterization e.g. REM, EDX, Py-FIMS, P release studies

4-4

Central data storage

Data quality management, coordination with BonaRes-center

4-5

Industry, farmer and other stakeholder contacts

Coordination of subcontractor contributions

4-6

4-7

Ethical and socio-economic aspects of P fertility

UoR

UB

FNK

B. Gerowitt

S. Hüttel

F. Ekardt

Collect and analyse farm data on use of P-fertilization

Instruments of policy for more P effectiveness