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@ARTICLE{Valle:909307,
author = {Valle, Stella F. and Giroto, Amanda S. and Dombinov,
Vitalij and Robles-Aguilar, Ana A. and Jablonowski, Nicolai
D. and Ribeiro, Caue},
title = {{S}truvite-based composites for slow-release fertilization:
a case study in sand},
journal = {Scientific reports},
volume = {12},
number = {1},
issn = {2045-2322},
address = {[London]},
publisher = {Macmillan Publishers Limited, part of Springer Nature},
reportid = {FZJ-2022-03116},
pages = {14176},
year = {2022},
abstract = {Struvite (St) recovered from wastewaters is a sustainable
option for phosphorus (P) recovery and fertilization, whose
solubility is low in water and high in environments
characterized by a low pH, such as acidic soils. To broaden
the use of struvite in the field, its application as
granules is recommended, and thus the way of application
should be optimized to control the solubility. In this study
struvite slow-release fertilizers were designed by
dispersing St particles (25, 50, and 75 $wt\%)$ in a
biodegradable and hydrophilic matrix of thermoplastic starch
(TPS). It was shown that, in citric acid solution
(pH = 2), TPS promoted a steadier P-release from St
compared to the pure St pattern. In a pH neutral sand,
P-diffusion from St-TPS fertilizers was slower than from the
positive control of triple superphosphate (TSP).
Nevertheless, St-TPS featured comparable maize growth (i.e.
plant height, leaf area, and biomass) and similar available
P as TSP in sand after 42 days of cultivation. These results
indicated that St-TPS slow P release could provide enough P
for maize in sand, achieving a desirable agronomic
efficiency while also reducing P runoff losses in highly
permeable soils.},
cin = {IBG-2},
ddc = {600},
cid = {I:(DE-Juel1)IBG-2-20101118},
pnm = {2172 - Utilization of renewable carbon and energy sources
and engineering of ecosystem functions (POF4-217)},
pid = {G:(DE-HGF)POF4-2172},
typ = {PUB:(DE-HGF)16},
pubmed = {35986201},
UT = {WOS:000842561700065},
doi = {10.1038/s41598-022-18214-8},
url = {https://juser.fz-juelich.de/record/909307},
}