%0 Conference Paper
%A Valle, Stella do
%A Giro, Amanda
%A Dombinov, Vitalij
%A Robles Aguilar, Ana Alejandra
%A Jablonowski, Nicolai David
%A Ribeiro de Oliveira, Caue
%T Slow-Release Fertilizers Based on Dispersed Struvite in Thermoplastic Starch Matrix
%M FZJ-2022-05798
%D 2022
%Z https://www.phosphorusplatform.eu/espc4-2
%X Improving plant nutrition is key for higher crop yields and could be achieved with environmentally-friendly fertilizers. Phosphorus (P) is especially limiting to plant development, yet, conventional P fertilizers have been increasingly associated with eutrophication of freshwater systems. Struvite (St) is an alternative source for P, recycled from urban wastewaters. Its low water solubility reduces environmental impacts; however, efficiency can be considerably low in granular form for field application. Therefore, fertilizer design plays a critical role that should be addressed. In the present work we prepared slow-release fertilizers based on St fine dispersion in a biodegradable matrix of thermoplastic starch (TPS). Herein, we unveiled P dissolution patterns of St-TPS composites and their effect on maize growth. The results showed the potential of St-TPS to achieve a desirable agronomic efficiency for maize while also reducing P runoff losses in highly permeable or acidic soils.
%B 4th European Sustainable Phosphorus Conference 2022
%C 20 Jun 2022 - 22 Jun 2022, Vienna (Austria)
Y2 20 Jun 2022 - 22 Jun 2022
M2 Vienna, Austria
%F PUB:(DE-HGF)24
%9 Poster
%U https://juser.fz-juelich.de/record/915935