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Évaluation de la capacité de cultures intermédiaires à piéger l’azote et à produire un fourrage.Evaluation of intermediate crops to trap nitrogen and produce forage

Authors: De Toffoli, Marc; Decamps, Christian; Lambert, Richard;

Évaluation de la capacité de cultures intermédiaires à piéger l’azote et à produire un fourrage.Evaluation of intermediate crops to trap nitrogen and produce forage

Abstract

Les résultats de trois années d’expérimentation de cultures intermédiaires en région limoneuse à l’Université catholique de Louvain ont permis d’évaluer l’intérêt de plusieurs espèces de graminées et légumineuses en culture pure ou en mélange. Les performances ont été jugées sur leur capacité à prélever l’azote du sol, à produire un fourrage en quantité et en qualité suffisantes et à fournir un couvert répondant à différents critères agronomiques pendant l’interculture. Les résultats montrent que les graminées en culture pure ou en mélange avec légumineuses sont aptes à réduire de manière significative la quantité d’azote minéral du sol en début de période de drainage, pour autant que la proportion de non légumineuse constitue au moins 50 % du mélange. La biomasse produite par la plupart des couverts permet de récolter un fourrage d’appoint qui peut s’avérer utile en cas de pénurie. Experiments on catch crops were carried out over a period of three years in the loamy region of Belgium at the Catholic University of Louvain. The results were used to evaluate the performance of certain species of grass and legume, in pure or mixed culture. The performance of each species was judged according to its ability to take up nitrogen (catch crops), to produce forage of a sufficient quality and to meet certain agronomic criteria for intercropping. The results showed that grasses in pure culture or when mixed with legumes were able to significantly reduce soil nitrogen at the beginning of the drainage period, provided that the proportion of non-legumes constituted at least 50% of the mixture. Biomass produced by most of the tested crops can be harvested as complementary forage, which can be useful in times of shortage.

Country
Belgium
Related Organizations
Keywords

Yields, Nitrates, Belgique, Nitrogen, Trap crops, Azote, culture piège, rendement, Poaceae, Legumes, légumineuse, plante fourragère, lixiviation, Belgium, Feed crops, nitrate, Mixed cropping, Leaching, culture en mélange, biomasse, Biomass

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Related to Research communities
Energy Research