TY  - CONF
AU  - Dombinov, Vitalij
AU  - Jablonowski, Nicolai David
AU  - Herzel, Hannes
AU  - Meiller, Martin
AU  - Müller, Felix
AU  - Willbold, Sabine
AU  - Zang, Joachim Werner
AU  - da Fonseca-Zang, Warde Antonieta
AU  - Poorter, Hendrik
AU  - Watt, Michelle
AU  - Schrey, Silvia
TI  - Sugarcane bagasse-based ashes as fertiliser for soybeans and the relevance of ash mineral composition on plant phosphorus availability
M1  - FZJ-2022-05793
PY  - 2022
AB  - Sugarcane bagasse, the lignocellulosic remains of sugar cane processing is commonly burnt to generate electricity. Recycling strategies for the resulting ashes rarely take the remaining plant nutrients into account. The objective of this study was to investigate the potential of ashes sourced from combustion and gasification of bagasse alone and in combination with chicken manure and sewage sludge, respectively, as fertiliser for soybeans. The analyses were based on chemical ash characterisation, 31P NMR, X-ray diffraction, sequential phosphorus (P) extraction, P extraction in citric acid and greenhouse pot experiments with soybean plants. Fertilization effects were lower than those of triple-superphosphate and K2SO4 and depended on plant P availability. Calcium-based phosphates dominated in all ashes and determined plant P availability. XRD analyses revealed whitlockite (Ca9M(PO4)7) and CaK2P2O7 in all ashes, while AlPO4 was detected only in an ash with low plant P availability and two undefined P phases and Ca(Na,K)PO4 in ashes with high plant P availability. In conclusion, plant P availability was highest in alkali-rich ashes, as observed in ashes from co-processing bagasse with chicken manure. To increase plant P availability in ashes, we recommend co-combustion of the biomass with sodium and potassium rich biofuels.
T2  - ESCP4 + PERM5
CY  - 20 Jun 2022 - 21 Jun 2022, Vienna (Austria)
Y2  - 20 Jun 2022 - 21 Jun 2022
M2  - Vienna, Austria
LB  - PUB:(DE-HGF)24
UR  - https://juser.fz-juelich.de/record/915930
ER  -