Impact of crop residue management on crop production and soil chemistry after seven years of crop rotation in temperate climate, loamy soils

PeerJ
Marie-Pierre HielBenjamin Dumont

Abstract

Society is increasingly demanding a more sustainable management of agro-ecosystems in a context of climate change and an ever growing global population. The fate of crop residues is one of the important management aspects under debate, since it represents an unneglectable quantity of organic matter which can be kept in or removed from the agro-ecosystem. The topic of residue management is not new, but the need for global conclusion on the impact of crop residue management on the agro-ecosystem linked to local pedo-climatic conditions has become apparent with an increasing amount of studies showing a diversity of conclusions. This study specifically focusses on temperate climate and loamy soil using a seven-year data set. Between 2008 and 2016, we compared four contrasting residue management strategies differing in the amount of crop residues returned to the soil (incorporation vs. exportation of residues) and in the type of tillage (reduced tillage (10 cm depth) vs. conventional tillage (ploughing at 25 cm depth)) in a field experiment. We assessed the impact of the crop residue management on crop production (three crops-winter wheat, faba bean and maize-cultivated over six cropping seasons), soil organic carbon content, nitrat...Continue Reading

References

Apr 17, 2004·Science·Rattan LalM Granger Morgan
Oct 22, 2013·Journal of Plant Physiology·Christian ZörbEdgar Peiter
Oct 23, 2014·Nature·Cameron M PittelkowChris van Kessel

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Methods Mentioned

BETA
PCA

Software Mentioned

WalOnMap
agricolae package
R
R Core Team
lme4
ArcGIS

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