Databank

Databank

Posiva publishes Working Reports and Posiva Reports. From the year 2006 nearly all the reports have been published on our webpage and they can be found in the databank. In the databank you can also find our Annual Reviews and some other publications as well. You can also find print-quality pictures and useful links in the databank.

Recent publications


Workreport 2017-36

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Name:

Studies on Selected Crop Species for Biosphere Assessment in Southwest Finland

Writer:

Salo, T., Pihala, J., Lahdenperä, A-M.

Language:

English

Page count:

128

Summary:

Twelve agricultural crops were sampled in southwest Finland in order to determine their yield, biomass accumulation and elemental concentrations in 2013-2016, The sampled crops were apple, barley, black currant, cabbage, carrot, grass, iceberg lettuce, pea, potato, strawberry, sugar beet and turnip rape. Pea was sampled twice in order to get understanding from variation between sites and years. Four replicated crop samples were collected from the field and their total elemental concentrations were analyzed separately. Soil samples were taken from the sampling sites from the top layer of 0-20 cm and one combined sample was analyzed for elemental concentrations. Concentration ratios i.e. plant element concentration divided by soil total concentration or by soil bioavailable concentration (ammonium acetate extracted) were calculated from the data. Solid/liquid distribution coefficients (Kd) were calculated for the 13 sampled agricultural soils.

The sampling of 12 agricultural crops created a unique dataset of biomass accumulation, elemental concentrations and concentration ratios from those crops commonly cultivated in southwest Finland. The measured parameters were usually at the same level when compared to available data from the Finnish literature. Regarding few elements there were problems to reach the limit of quantification (LOQ) in the analyzing laboratory, and thus there is uncertainty in some concentrations and concentration ratios. The sampled 13 agricultural soils create a good addition to the previously available data of soil elemental concentrations and Kd-values of Finnish soils used in agriculture.

For the purpose of ecosystem modelling the obtained data is an excellent basis to compare obtained values against available literature values and parametrise models to estimate the cycle of elements in agricultural crops and corresponding soils.

Keywords:

Agriculture, yield, biomass, soil, elements, concentration ratio, solid/liquid distribution coefficient, apple, barley, black currant, cabbage, carrot, grass, iceberg lettuce, pea, potato, strawberry, sugar beet, turnip rape

File(s):

WR 2017-36_web (pdf) (49.8 MB)
Appendix_2_plant_element_concentrations_web (xlsx) (284.7 KB)
Appendix_3_soil_element_concentrations_web (xlsx) (240.1 KB)
Appendix_6_Irrigation situation in Satakunta_web (pdf) (3 MB)
Appendix_7_Element composition and concentration ratios in chickens_web (pdf) (2.7 MB)


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