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@INPROCEEDINGS{Gbel:863388,
author = {Göbel, Leonie and Schmidt, Marcus and Corre, Marife and
Veldkamp, Edzo},
title = {{N}utrient response and nutrient retention efficiency in
temperate agroforestry systems},
reportid = {FZJ-2019-03461},
year = {2017},
abstract = {Agroforestry systems are innovative agricultural systems,
which take advantage of beneficial ecological functions of
their components, aiming to attain high productivity with
possibly less negative environmental effects, e.g. nutrient
and carbon losses. However, no comparison of nutrient
response and retention efficiencies has yet been conducted
between conventional and agroforestry systems. Our study
aimed 1) to quantify nutrient response (ratio of biomass
production to soil available nutrients) and nutrient
retention efficiency (1-leaching losses/soil available
nutrient) in conventional and agroforestry systems, and 2)
to assess if competition and/or facilitation exists between
tree strip and grass/crop in agroforestry systems. We
hypothesized that conventional systems will have lower
nutrient response and retention efficiencies than
agroforestry systems. Our study investigated six paired
sites of grassland/cropland and agroforestry with alley
cropping of fast growing tree species and crop/grass,
located in central and eastern Germany. Measurements in
agroforestry were taken within tree strips and at various
distances to the tree strips within the crop/grass strips.
Results from the 2016/2017 growing season will be presented.
This study will provide the presently needed information on
whether agroforestry can reduce the negative environmental
impacts through gaseous/leaching losses while optimizing
production and therefore might be a sustainable alternative
to conventional agriculture.},
month = {Sep},
date = {2017-09-18},
organization = {125th Anniversary Congress, Freiburg
(Germany), 18 Sep 2017 - 22 Sep 2017},
typ = {PUB:(DE-HGF)6},
url = {https://juser.fz-juelich.de/record/863388},
}