Year Measurements Growth stage Topsoil depth Crop species Depth × Species
2016 Grain yield R3/R6 0.016 P < 0.001 0.012
2017 Grain yield R3/R6 0.413 P < 0.001 0.597
2018 Grain yield R3/R6 0.002 P < 0.001 0.634
2017 Shoot biomass V7/R1 P < 0.001 P < 0.001 P < 0.001
R3/R6 P < 0.001 P < 0.001 P < 0.001
Root biomass V7/R1 P < 0.001 P < 0.001 P < 0.001
R3/R6 P < 0.001 P < 0.001 0.014
Total root length V7/R1 P < 0.001 P < 0.001 P < 0.001
R3/R6 P < 0.001 P < 0.001 P < 0.001
Root N uptake V7/R1 P < 0.001 P < 0.001 P < 0.001
R3/R6 0.001 P < 0.001 0.084
Root P uptake V7/R1 0.001 P < 0.001 P < 0.001
R3/R6 0.369 P < 0.001 0.011
Root K uptake V7/R1 P < 0.001 P < 0.001 P < 0.001
R3/R6 0.131 P < 0.001 0.461
Shoot N uptake V7/R1 P < 0.001 P < 0.001 P < 0.001
R3/R6 0.001 P < 0.001 P < 0.001
Shoot P uptake V7/R1 0.007 0.001 0.213
R3/R6 0.001 P < 0.001 P < 0.001
Shoot K uptake V7/R1 P < 0.001 P < 0.001 0.007
R3/R6 P < 0.001 P < 0.001 P < 0.001
Specific N uptake V7/R1 P < 0.001 P < 0.001 0.003
R3/R6 P < 0.001 P < 0.001 P < 0.001
Specific P uptake V7/R1 P < 0.001 P < 0.001 0.060
R3/R6 P < 0.001 P < 0.001 P < 0.001
Specific K uptake V7/R1 P < 0.001 0.002 0.860
R3/R6 P < 0.001 P < 0.001 P < 0.001
Rhizosphere N R3/R6 0.004 P < 0.001 0.027
Rhizosphere P R3/R6 0.002 0.001 0.797
Rhizosphere K R3/R6 P < 0.001 0.432 0.014
Rhizo urease R3/R6 0.006 P < 0.001 0.108
Rhizo phosphatases R3/R6 0.041 P < 0.001 P < 0.001
Rhizo invertase R3/R6 0.001 0.001 0.137