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@ARTICLE{GmezMuoz:153469,
author = {Gómez-Muñoz, B. and Hatch, D. J. and Bol, R. and
García-Ruiz, R.},
title = {{N}utrient dynamics during decomposition of the residues
from a sown legume or ruderal plant cover in an olive oil
orchard},
journal = {Agriculture, ecosystems $\&$ environment},
volume = {184},
issn = {0167-8809},
address = {Amsterdam [u.a.]},
publisher = {Elsevier},
reportid = {FZJ-2014-03067},
pages = {115 - 123},
year = {2014},
abstract = {Spanish olive oil groves are undergoing a marked change in
the way that inter-row land is managed. The current
recommendation encourages the use of plant cover to increase
plant residue input to the soil to improve fertility and
reduce erosion. However, there is no quantitative
information on the temporal trend and magnitude of nutrient
release during decomposition of plant cover residues after
the annual topping of vegetation. Decomposition rates and
nutrient dynamics (C, N, P and K) were examined for
aboveground residues from two types of plant cover (a sown
legume and ruderal plant species) and in fine roots.
Litterbag experiments were designed to evaluate the effects
of the type and location of plant residues (above- or
belowground) by placing litterbags of aboveground plant
residues on the soil surface or within the soil, which were
sampled over a whole year. The highest decomposition rates
for above- or belowground residues were found in spring, and
were higher for buried plant residues, regardless of plant
cover type. After one year, the remaining C, K and P in the
soil was about $30\%,$ $20\%$ and $30\%$ of that added,
respectively and therefore plant cover could be a useful
strategy to improve C sequestration and increase soil
nutrient content in olive groves. Decomposition of plant
residues left on the soil surface immobilised N, whereas
this was not the case when they were buried. The remaining
C, N, P and K content in belowground residues was similar to
aboveground samples with around $21\%,$ $27\%,$ $23\%$ and
$15\%,$ respectively. This study highlighted the importance
of plant cover for retaining nutrients when tree demand was
low, but releasing a significant proportion of the nutrients
in early spring when tree demand was high, especially when
residues were incorporated into the soil.},
cin = {IBG-3},
ddc = {330},
cid = {I:(DE-Juel1)IBG-3-20101118},
pnm = {246 - Modelling and Monitoring Terrestrial Systems: Methods
and Technologies (POF2-246) / 255 - Terrestrial Systems:
From Observation to Prediction (POF3-255)},
pid = {G:(DE-HGF)POF2-246 / G:(DE-HGF)POF3-255},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000334002700012},
doi = {10.1016/j.agee.2013.11.020},
url = {https://juser.fz-juelich.de/record/153469},
}