soils, sec 1 • soil organic matter dynamics and nutrient cycling • research article

Evolution of mercury content in agricultural soils due to the application of organic and mineral fertilizers

Mercedes Sánchez-Báscones1 • Juan M. Antolín-Rodríguez1 • Pablo Martín-Ramos2 • Araceli González-González1 • Carmen T. Bravo-Sánchez1 • Jesús Martín-Gil3

Received: 16 September 2016 / Accepted: 23 November 2016

© Springer-Verlag Berlin Heidelberg 2016

Responsible editor: Xilong Wang

1 Agriculture and Forestry Science Department, ETSIIAA, Universidad de Valladolid, Avenida de Madrid 57, 34004 Palencia, Spain

2 Department of Agricultural and Environmental Sciences, Higher Polytechnic School of Huesca, University of Zaragoza, Carretera de Cuarte, s/n, 22071 Huesca, Spain

3 Agriculture and Forestry Engineering Department, ETSIIAA, Universidad de Valladolid, Avenida de Madrid 44, 34004 Palencia, Spain

* Pablo Martín-Ramos

ELECTRONIC SUPPLEMENTARY MATERIAL

Table S1 Hg amounts (g·ha-1·year-1) added by the organic waste materials (CSS: composted sewage sludge; DSS: dehydrated sewage sludge; MSWC: municipal solid waste compost) in each of the years of the experiment

Non-irrigated soil / Irrigated soil
Year / CSS / DSS / MSWC / CSS / DSS / MSWC
2005 / 7.6 / 2.1 / 6.4 / 12.6 / 3.5 / 10.7
2006 / 6.5 / 2.2 / 6.5 / 10.7 / 3.7 / 10.9
2007 / 6.2 / 2.4 / 9.4 / 10.3 / 4.0 / 15.8
2008 / 7.1 / 2.9 / 16.8 / 11.7 / 4.9 / 28.2
2009 / 5.0 / 2.6 / 16.9 / 8.3 / 4.5 / 28.3

Table S2 pH in the agricultural soils under study after five years of fertilizer application (T1: control soil (without fertilizer); T2: mineral fertilizer; T3: composted sewage sludge (CSS); T4: dehydrated sewage sludge (DSS); T5: municipal solid waste compost (MSWC)). All are average values of four samples ± standard deviation

Soil / Treatment / Year
2005 / 2006 / 2007 / 2008 / 2009
Non-irrigated soil / T1 / 8.6±0.1 / 8.1±0.0 / 7.8±0.0 / 8.2±0.0 / 8.3±0.1
T2 / 8.7±0.1 / 8.0±0.1 / 7.8±0.0 / 8.3±0.1 / 8.2±0.1
T3 / 8.6±0.1 / 8.0±0.0 / 7.9±0.0 / 8.2±0.0 / 8.2±0.2
T4 / 8.6±0.0 / 8.0±0.1 / 7.9±0.0 / 8.1±0.2 / 8.1±0.1
T5 / 8.6±0.1 / 8.0±0.0 / 7.8±0.0 / 8.2±0.0 / 8.2±0.1
Irrigated soil / T1 / 8.6±0.2 / 8.2±0.0 / 8.1±0.1 / 8.4±0.1 / 8.4±0.1
T2 / 8.7±0.1 / 8.1±0.0 / 8.0±0.2 / 8.3±0.1 / 8.3±0.0
T3 / 8.6±0.2 / 8.2±0.1 / 8.0±0.0 / 8.3±0.0 / 8.3±0.1
T4 / 8.6±0.2 / 8.1±0.0 / 8.0±0.0 / 8.3±0.1 / 8.3±0.0
T5 / 8.7±0.1 / 8.1±0.1 / 8.0±0.0 / 8.3±0.0 / 8.3±0.1

Table S3 EC in the agricultural soils under study after five years of fertilizer application (T1: control soil (without fertilizer); T2: mineral fertilizer; T3: composted sewage sludge (CSS); T4: dehydrated sewage sludge (DSS); T5: municipal solid waste compost (MSWC)). All are average values (expressed in mmhos/cm) of four samples ± standard deviation

Soil / Treatment / Year
2005 / 2006 / 2007 / 2008 / 2009
Non-irrigated soil / T1 / 0.19±0.03 / 0.25±0.01 / 0.23±0.01 / 0.26±0.05 / 0.25±0.01
T2 / 0.18±0.01 / 0.31±0.05 / 0.24±0.02 / 0.27±0.04 / 0.37±0.11
T3 / 0.22±0.04 / 0.34±0.05 / 0.25±0.02 / 0.26±0.03 / 0.34±0.04
T4 / 0.24±0.05 / 0.33±0.06 / 0.26±0.03 / 0.34±0.05 / 0.40±0.11
T5 / 0.20±0.03 / 0.31±0.04 / 0.29±0.05 / 0.28±0.02 / 0.36±0.05
Irrigated soil / T1 / 0.15±0.02 / 0.25±0.04 / 0.21±0.03 / 0.23±0.02 / 0.26±0.03
T2 / 0.15±0.02 / 0.33±0.11 / 0.25±0.03 / 0.29±0.01 / 0.29±0.05
T3 / 0.16±0.03 / 0.28±0.03 / 0.25±0.01 / 0.30±0.03 / 0.28±0.10
T4 / 0.17±0.03 / 0.32±0.08 / 0.26±0.04 / 0.26±0.01 / 0.23±0.16
T5 / 0.17±0.01 / 0.26±0.03 / 0.27±0.05 / 0.29±0.03 / 0.31±0.03

Table S4 %C in the agricultural soils under study after five years of fertilizer application (T1: control soil (without fertilizer); T2: mineral fertilizer; T3: composted sewage sludge (CSS); T4: dehydrated sewage sludge (DSS); T5: municipal solid waste compost (MSWC)). All are average values of four samples ± standard deviation

Soil / Treatment / Year
2005 / 2006 / 2007 / 2008 / 2009
Non-irrigated soil / T1 / 7.11±0.34 / 7.09±0.13 / 7.31±0.54 / 6.66±1.89 / 7.32±0.36
T2 / 6.50±0.41 / 6.34±0.36 / 6.64±0.55 / 7.10±0.50 / 6.92±0.30
T3 / 6.79±0.32 / 6.63±0.38 / 6.85±0.49 / 6.78±0.27 / 7.00±0.20
T4 / 6.76±0.27 / 6.67±0.41 / 6.87±0.48 / 6.77±0.28 / 6.77±0.26
T5 / 6.76±0.35 / 6.50±0.57 / 6.83±0.54 / 6.79±0.48 / 6.88±0.21
Irrigated soil / T1 / 3.80±0.62 / 4.20±0.85 / 4.48±0.76 / 4.82±0.97 / 4.68±1.04
T2 / 3.58±0.60 / 3.83±0.65 / 3.97±0.56 / 4.03±0.64 / 3.95±0.62
T3 / 3.82±0.57 / 3.90±0.72 / 4.13±0.54 / 4.13±0.69 / 4.11±0.46
T4 / 3.66±0.71 / 3.82±0.74 / 3.94±0.67 / 3.85±0.86 / 3.80±0.63
T5 / 3.74±0.53 / 3.82±0.63 / 3.94±0.56 / 3.85±0.49 / 3.82±0.56

Table S5 %N in the agricultural soils under study after five years of fertilizer application (T1: control soil (without fertilizer); T2: mineral fertilizer; T3: composted sewage sludge (CSS); T4: dehydrated sewage sludge (DSS); T5: municipal solid waste compost (MSWC)). All are average values of four samples ± standard deviation

Soil / Treatment / Year
2005 / 2006 / 2007 / 2008 / 2009
Non-irrigated soil / T1 / 0.16±0.01 / 0.13±0.00 / 0.16±0.00 / 0.17±0.01 / 0.18±0.02
T2 / 0.15±0.01 / 0.13±0.01 / 0.16±0.01 / 0.17±0.01 / 0.18±0.02
T3 / 0.17±0.02 / 0.13±0.01 / 0.17±0.01 / 0.17±0.01 / 0.19±0.02
T4 / 0.17±0.03 / 0.13±0.01 / 0.16±0.01 / 0.21±0.04 / 0.21±0.02
T5 / 0.17±0.01 / 0.13±0.00 / 0.17±0.00 / 0.19±0.00 / 0.19±0.02
Irrigated soil / T1 / 0.11±0.01 / 0.09±0.01 / 0.13±0.00 / 0.15±0.02 / 0.10±0.01
T2 / 0.12±0.01 / 0.09±0.01 / 0.14±0.00 / 0.16±0.02 / 0.13±0.03
T3 / 0.13±0.01 / 0.10±0.01 / 0.15±0.01 / 0.17±0.01 / 0.19±0.05
T4 / 0.12±0.01 / 0.11±0.03 / 0.15±0.01 / 0.17±0.01 / 0.23±0.06
T5 / 0.12±0.02 / 0.09±0.02 / 0.15±0.01 / 0.17±0.01 / 0.19±0.06

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