Polar Biology

Bacterial diversity in Greenlandic soils as affected by potato cropping and inorganic versus organic fertilization

Charlotte Frydenlund Michelsen, Pai Pedas, Mikkel Andreas Glaring, Jan Kofod Schjoerring, Peter Stougaard*

* Corresponding author. Tel.: +45 35 33 26 09, E-mail address:

Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, DK 1871 Frederiksberg C, Denmark.

Table S3 Nutrient-concentrations in the dry matter of shoots and tubers of potato plants grown in the two Greenlandic potato fields: Field WE, a well-established field and Field NE, a newly-established field under the different fertilizer treatments: NPK, Manure.N (sheep manure supplemented with Nitrogen) and unfertilized. Shoots were harvested in July each year and tubers harvested in September. Date are means ±SE (n=4)

NPK / Unfertilized / Manure.N
2010 / 2011 / 2010 / 2011 / 2010 / 2011
Shoot / Tuber / Shoot / Tuber / Shoot / Tuber / Shoot / Tuber / Shoot / Tuber / Shoot / Tuber
Field WE
N (%) / 4.20 ± 0.16 / 2.11 ± 0.19 / 3.16 ± 0.14 / 1.50 ± 0.01 / 2.57 ± 0.24 / 1.49 ± 0.17 / 2.49 ± 0.09 / 1.41 ± 0.17 / 3.41 ± 0.49 / 1.93 ± 0.15 / 3.32 ± 0.22 / 1.74 ± 0.17
P (%) / 0.44 ± 0.01 / 0.29 ± 0.10 / 0.18 ± 0.01 / 0.14 ± 0.03 / 0.40 ± 0.01 / 0.29 ± 0.04 / 0.23 ± 0.03 / 0.21 ± 0.06 / 0.36 ± 0.04 / 0.34 ± 0.03 / 0.26 ± 0.03 / 0.19 ± 0.04
K (%) / 5.19 ± 0.36 / 1.93 ± 0.33 / 3.93 ± 0.22 / 1.51 ± 0.06 / 3.57 ± 0.47 / 1.51 ± 0.22 / 1.43 ± 0.48 / 1.46 ± 0.05 / 3.51 ± 0.28 / 2.02 ± 0.11 / 1.85 ± 0.28 / 1.19 ± 0.03
Field NE
N (%) / 5.66 ± 0.30 / 1.87 ± 0.38 / 3.70 ± 0.13 / 1.82 ± 0.15 / 3.64 ± 0.26 / 1.44 ± 0.08 / 2.68 ± 0.32 / 1.14 ± 0.01 / 4.52 ± 0.20 / 1.58 ± 0.20 / 3.88 ± 0.20 / 1.59 ± 0.19
P (%) / 0.55 ± 0.03 / 0.31 ± 0.02 / 0.36 ± 0.03 / 0.25 ± 0.04 / 0.46 ± 0.05 / 0.32 ± 0.01 / 0.46 ± 0.02 / 0.27 ± 0.02 / 0.50 ± 0.02 / 0.32 ± 0.01 / 0.38 ± 0.03 / 0.23 ± 0.01
K (%) / 5.80 ± 0.22 / 1.86 ± 0.26 / 4.11 ± 0.05 / 1.73 ± 0.18 / 3.75 ± 0.22 / 1.72 ± 0.13 / 2.69 ± 0.37 / 1.39 ± 0.09 / 4.65 ± 0.14 / 1.97 ± 0.09 / 2.84 ± 0.28 / 1.48 ± 0.05