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@ARTICLE{Giroto:862301,
author = {Giroto, Amanda S. and Guimarães, Gelton G. and Colnago,
Luiz A. and Klamczynski, Artur and Glenn, Greg and Ribeiro,
Caue},
title = {{C}ontrolled release of nitrogen using urea-melamine-starch
composites},
journal = {Journal of cleaner production},
volume = {217},
issn = {0959-6526},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {FZJ-2019-02639},
pages = {448 - 455},
year = {2019},
abstract = {Herein we describe a new fertilizer delivery system made of
a thermoplastic starch composite used to control the release
of nitrogen in greenhouse trials. The innovative approach in
this work is to use a natural matrix to disperse the N
source using one extrusion processing step that is easily
scalable. The extrudate was formed into a continuous strand
using a rod die and was subsequently air-cooled and
pelletized. The extrusion process yielded homogeneous
pellets with high nitrogen content that could be applied
directly to the soil. Melamine changed the structure of
composites and increased the N final content of the
fertilizers. Soil incubation experiments showed a more
controlled N release by the matrix whereby the same
proportion of N from urea was achieved after 28 days.
Greenhouse trials revealed that melamine plays an important
role as a structure modifier, increasing the effective use
of available N from urea for maize in pot experiments. It
was also verified that the Nmelamine was not available
during the first 60 days of the trial experiment, showing
that the lower amount of nitrogen released (only from urea)
was better utilized by the plants treated with the composite
material. The pelletized composite could be a prospective
system for smart fertilization processing based on a
renewable source (e.g. starch).},
cin = {IEK-3},
ddc = {330},
cid = {I:(DE-Juel1)IEK-3-20101013},
pnm = {134 - Electrolysis and Hydrogen (POF3-134)},
pid = {G:(DE-HGF)POF3-134},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000461410100044},
doi = {10.1016/j.jclepro.2019.01.275},
url = {https://juser.fz-juelich.de/record/862301},
}