Format:
Online-Ressource
ISSN:
2199-398X
Content:
Abstract eq) of acidic soils. The effect of calculated soil amendment rates on soil pH was validated at soil water contents of 60 %, 100 %, and 150 % of field capacity (FC). The soil used to develop and validate the method was a sandy loam with a soil pH in deionised water (pHW) of 4.84 and a soil pH in 0.01 M CaCl2 solution (pHCa) of 4.21. The LBCeq of the soil was 1657 mg CaCO3 kg- 1 - 1 3 kg- 1 - 1 eq + - 1 eq + - 1 W to 6.48 and 6.42, respectively, but lower pH values were reached in soil amended with less biodegradable or resistant OAs (ROAs) (i.e. blended poultry litter, biochar, and compost). At 150 % FC, the two straws increased the soil pHW to only 5.93 and 5.75, respectively, possibly due to slower decomposition under submerged conditions, resulting in limited alkalinity production, whereas amendment with ROAs produced pHW values close to 6.5. With an increasing lime-equivalent value (LEV) of the OA, from 5.8 g CaCO3 kg- 1 3 kg- 1 W 6.5 in lime–OA combinations decreased from 2.72 to 0.09 g CaCO3 kg- 1. The developed method was shown to be effective in determining the appropriate rates of OAs (with or without additional lime) for the management of acidic sandy loam soils in this study and highlights the importance of the soil water content with respect to its acid-neutralising effect.
In:
volume:10
In:
number:1
In:
year:2024
In:
pages:33-47
In:
extent:15
In:
Soil, Göttingen : Copernicus Publ., 2015-, 10, Heft 1 (2024), 33-47 (gesamt 15), 2199-398X
Language:
English
DOI:
10.5194/soil-10-33-2024
URN:
urn:nbn:de:101:1-2024011803215220360154
URL:
https://doi.org/10.5194/soil-10-33-2024
URL:
https://nbn-resolving.org/urn:nbn:de:101:1-2024011803215220360154
URL:
https://d-nb.info/1316311066/34
URL:
https://soil.copernicus.org/articles/10/33/2024/soil-10-33-2024.pdf
URL:
https://soil.copernicus.org/articles/10/33/2024/
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