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@INPROCEEDINGS{Barbosa:151227,
author = {Barbosa, Daniela and Nabel, Moritz and Horsch, David and
Tsay, Gabriela and Jablonowski, Nicolai David},
title = {{D}igestate as nutrient source for biomass produvtion of
sida, lucerne and maize},
reportid = {FZJ-2014-01220},
year = {2014},
note = {Geophysical Research Abstracts},
abstract = {Geophysical Research AbstractsVol. 16, EGU2014-9820,
2014EGU General Assembly 2014Biogas as a renewable energy
source is supported in many countries driven by climate and
energy policies. Nowa-days, Germany is the largest biogas
producer in the European Union. A sustainable resource
management hasto be considered within this growing scenario
of biogas production systems and its environmental impacts.
Inthis respect, studies aiming to enhance the management of
biogas residues, which represents a valuable sourceof
nutrients and organic fertilization, are needed. Our
objective was to evaluate the digestate (biogas residue
af-ter fermentation process) application as nutrient source
for biomass production of three different plants: sida
(Sidahermaphrodita - Malvaceae), lucerne (Medicago sativa -
Fabaceae) and maize (Zea mays – Poaceae). The digestatewas
collected from an operating biogas facility (fermenter
volume 2500m3, ADRW Natur Power GmbH $\&$ Co.KGTitz/Ameln,
Germany) composed of maize silage as the major feedstock,
and minor amounts of chicken manure,with a composition of
$3,29\%$ N; $1,07\%$ P; $3,42\%$ K; and $41,2\%$ C. An
arable field soil (Endogleyic Stagnosol)was collected from
0-30 cm depth and 5 mm sieved. The fertilizer treatments of
the plants were established in fivereplicates including
digestate (application amount equivalent to 40 t ha-1) and
NPK fertilizer (application amountequivalent to 200:100:300
kg ha-1) applications, according to the recommended
agricultural doses, and a control(no fertilizer
application). The digestate and the NPK fertilizer were
thoroughly mixed with the soil in a rotatoryshaker for 30
min. The 1L pots were filled with the fertilized soil and
the seedlings were transplanted and grownfor 30 days under
greenhouse conditions (16 h day/8 h night: 24ºC/18ºC;
$60\%$ air humidity). After harvesting,the leaf area was
immediately measured, and the roots were washed to allow
above and below-ground biomassdetermination. Subsequently,
shoots and roots were dried at 60ºC for 48 hours. The
biomass and leaf area of sida,lucerne and maize presented
similar performance for both digestate and the NPK
fertilizer applications, whichwere greater than the control,
showing a positive fertilizing effect of the digestate for
plant biomass production.Considering the biomass production
obtained with the digestate application for sida, lucerne
and maize, the resultsgive support for further field
experiments which aim to evaluate the fertilizing and
conditioning effect of digestates.},
month = {Apr},
date = {2014-04-12},
organization = {EGU General Assembly 2014, Vienna
(Austria), 12 Apr 2014 - 17 Apr 2014},
cin = {IBG-2},
cid = {I:(DE-Juel1)IBG-2-20101118},
pnm = {89582 - Plant Science (POF2-89582)},
pid = {G:(DE-HGF)POF2-89582},
typ = {PUB:(DE-HGF)1},
url = {https://juser.fz-juelich.de/record/151227},
}