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@INPROCEEDINGS{Jablonowski:1032194,
author = {Jablonowski, Nicolai David and Ohrem, Benedict and
Kuchendorf, Christina and Kuhn, Arnd Jürgen and Klose,
Holger},
title = {{INVESTIGATING} {MARGINAL} {SOILS} {FOR} {IMPROVED} {AND}
{SUSTAINABLE} {CROP} {PRODUCTION} {IN} {A} {UNIQUE}
{RESEARCH} {FIELD} {INFRASTRUCTURE}},
reportid = {FZJ-2024-06063},
year = {2024},
note = {Invited Keynote Lecture in the Division of General Crops
and Products},
abstract = {In the context of a sustainable, bio-based economy, the
production and sufficient provision of biomass for material
and/or energy applications is a critical bottleneck. To
avoid land use conflicts with food production in biomass
generation, it is essential to utilize previously unused
and/or agriculturally non-viable, nutrient-poor marginal
soils and to enhance and make them suitable for plant
production. This goal is pursued, among other things, by the
scientific endeavors at the unique "Marginal Field Lab
(MFL)". This includes the development and execution of field
experiments that i) evaluate the transferability and further
development of results obtained from laboratory and
greenhouse trials in a "lab to field" approach, and ii)
demonstrate the usability of the experimental field and the
plantings for further research approaches, including food
and feed production.This newly established and artificially
created research field is located in central-west Germany,
on the spoil heap of the Hambach opencast mine in the
Rhenish mining area. In collaboration with the energy
company RWE, a sandy substrate from the opencast mine was
deposited on an area of more than 4 hectares. This substrate
contains neither organic carbon (Corg) nor other
plant-relevant nutrients. It is characterized by a very high
sand and gravel content and low water holding capacity.
Targeted fertilization strategies, such as subsurface
fertilization with digestate, humic acids, and algae biomass
compared to mineral NPK fertilizer, are tested for the
cultivation of economically relevant and alternative
(biomass) plants. These include perennial plants such as
Miscanthus x giganteus, Sida hermaphrodita, Silphium
perfoliatum, the biennial plant Mellilotus officinalis, and
the annual plants Carthamus tinctorius and Hordeum vulgare.
Additionally, the trial cultivation of Cannabis sativa and
Crotalaria juncea is planned.By installing suction cups at
several locations in defined soil depths and regularly
taking soil samples, the possible leaching of applied
nutrients and the plant-induced Corg enrichment in the soil
are investigated. The overarching goal is to make statements
about the suitability of various plants for cultivation on
opencast mine terraces and residual areas, to subject these
unused fallow lands to economically meaningful interim use.
In addition to carbon sequestration by the plants, erosion
of these areas is prevented, and ecosystem services are
implemented. The obtained biomasses are intended to be used
as raw materials for bio-based industries, such as
fiber/paper and oil/chemical companies, in the context of
regional structural change.Presenting these research
projects at the AAIC Conference 2024 aims to publicize the
outlined project activities in the context of sustainable
biomass production on marginal soils and to potentially
initiate future collaborative projects.},
month = {Sep},
date = {2024-09-01},
organization = {35th Annual Association for
Advancement of Industrial Crops (AAIC)
conference, Lisbon (Portugal), 1 Sep
2024 - 5 Sep 2024},
subtyp = {Invited},
cin = {IBG-2},
cid = {I:(DE-Juel1)IBG-2-20101118},
pnm = {2171 - Biological and environmental resources for
sustainable use (POF4-217)},
pid = {G:(DE-HGF)POF4-2171},
typ = {PUB:(DE-HGF)6},
url = {https://juser.fz-juelich.de/record/1032194},
}