Poster (After Call)

FZJ-2022-05798

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Slow-Release Fertilizers Based on Dispersed Struvite in Thermoplastic Starch Matrix

Valle, S. d. (Corresponding author) ; Giro, A. ; Dombinov, V.FZJ* ; Robles Aguilar, A. A. ; Jablonowski, N. D.FZJ* ; Ribeiro de Oliveira, C.

2022

Please use a persistent id in citations: http://hdl.handle.net/2128/33123

Abstract: 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.

Note: https://www.phosphorusplatform.eu/espc4-2

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Contributing Institute(s):

1. Pflanzenwissenschaften (IBG-2)

Research Program(s):

1. 2171 - Biological and environmental resources for sustainable use (POF4-217) (POF4-217)

Appears in the scientific report 2022

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Database coverage:

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