Publications in year 2016
Vol. 23, Issue 4
Hygroscopic moisture content of podzolic soil with biochar
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| Year : |
2016 |
| Volumen : |
23 |
| Issue : |
4 |
| Pages : |
533 - 543 |
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PDF
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| Authors: |
Marta Cybulak, Zofia Sokołowska, Patrycja Boguta
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| Abstract : |
The main goal of this study was to investigate the effect of biochar on hygroscopic water content (maximum hygroscopicity) of grey-brown podzolic soil (Haplic Luvisol). The biochar was applied to the soil of sub-plots under fallow and grassland in the amount of 0 (control), 10, 20 and 30 Mg ha–1. Soil samples were taken three times per year during the period of 2013-2015. Sorption isotherms of water vapour were determined for all studied samples and the maximum hygroscopicity (MH) was calculated from the relative water vapour pressure at p p0–1 = 0.965. Value of the MH varied from 1.5 to 3%. The effect of biochar addition to soil on hygroscopic water content was ambiguous. Addition of biochar caused a slight decrease in MH value in the case of the grassland. For the fallow, a positive effect of biochar addition was observed. |
| Keywords : |
maximum hygroscopicity, biochar, grassland, fallow |
| Language : |
english |
