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Does the cover crop residue management affect the soil water availability for plants?
Chelin, Marie; Parvin, Nargish; Hiel, Marie-Pierre et al.
2014SSSB Thematic day 2014: Plant-Soil interactions in a changing world
 

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Keywords :
crop residue management; soil water content; electrical resistivity; strip tillage; winter ploughing; spring ploughing
Abstract :
[en] Hydraulic processes and soil storage capacity may be affected by the crop residue management. Thus, a better understanding of the spatial and temporal distribution of water as a consequence of different tillage methods is needed. The distribution of soil water content is basically studied thanks to soil moisture sensors such as time domain reflectometry (TDR) probes. However, this method requires the disturbance of the soil and only provides local information. Comparatively, electrical resistivity tomography (ERT) slightly alters the soil structure. It has been considered as a proxy to assess the spatial and temporal variability of the soil water content. This study aims at assessing whether and to which extent the crop residue management influences soil water dynamics and the water availability for maize. Water content will be monitored from March to October 2014, under three crop residue managements: conventional tillage realized in the end of autumn, conventional tillage realized just before sowing, and strip tillage. A bare soil under conventional tillage will also be monitored so as to better understand the influence of the plant over the growing season. So as to better understand the dynamics of water in the soil-water-continuum, the influence of the crop residue management on the soil structure and the plant development will also be investigated. The soil water pattern will be daily monitored on a surface of two square meters through surface stainless steel electrodes, corresponding to three rows of seven maize plants. Five additional sticks with buried electrodes will be setup to get more detailed information near to the maize row. For each of the monitored zone, two TDR probes will help validating the data. In order to calibrate the relationship between electrical resistivity and soil water content, a dig will be dug, in which a set of four electrodes, one TDR probe and one temperature sensor will be placed at four different depths. Two suction cups placed on each of the monitoring zone will help getting the electrical conductivity of the soil solution.
Disciplines :
Environmental sciences & ecology
Life sciences: Multidisciplinary, general & others
Agriculture & agronomy
Author, co-author :
Chelin, Marie ;  Université de Liège > Department of Biosystems Engineering > Systèmes Sol-Eau ; AgricultureIsLife.be
Parvin, Nargish ;  Université de Liège > Department of Biosystems Engineering > AgricultureIsLife.be
Hiel, Marie-Pierre ;  Université de Liège > Department AgroBioChem > Phytotechnie des régions tempérées ; AgricultureIsLife.be
Degré, Aurore  ;  Université de Liège > Department AgroBioChem > Systèmes Sol-Eau
Colinet, Gilles  ;  Université de Liège > Department of Biosystems Engineering > Systèmes Sol-Eau
Bodson, Bernard ;  Université de Liège > Department AgroBioChem > Phytotechnie des régions tempérées
Garré, Sarah  ;  Université de Liège > Department of Biosystems Engineering > Systèmes Sol-Eau
Language :
English
Title :
Does the cover crop residue management affect the soil water availability for plants?
Alternative titles :
[fr] La gestion des résidues de couvert hivernal impacte-t-elle la disponibilité de l'eau pour la plante?
Publication date :
05 December 2014
Number of pages :
900x1200 mm
Event name :
SSSB Thematic day 2014: Plant-Soil interactions in a changing world
Event place :
Brussels, Belgium
Event date :
5/12/2014
Name of the research project :
AgricultureIsLife.be
Available on ORBi :
since 18 May 2015

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