References of "Stilmant, Didier"
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See detailImpact of cutting frequency on the vigour of Rumex obtusifolius
Stilmant, Didier ULg; Bodson, Bernard ULg; Vrancken, C. et al

in Grass & Forage Science (2010), 65(2), 147-153

The control of Rumex obtusifolius, even with the use of herbicides, is difficult in permanent grasslands where R. obtusifolius reduces both productivity and nutritive value of herbage. It is important to ... [more ▼]

The control of Rumex obtusifolius, even with the use of herbicides, is difficult in permanent grasslands where R. obtusifolius reduces both productivity and nutritive value of herbage. It is important to find alternative approaches to managing R. obtusifolius. Two greenhouse experiments were conducted to compare the impact of different cutting frequencies, which simulated grazing (three cuts), silage making (two cuts) and hay making (one cut) on shoot and root measurements of the vigour of R. obtusifolius. In both experiments the same cutting frequencies were imposed but in Experiment 1 the treatments were imposed for 2 years and in Experiment 2 for 1 year. Compared to the silage-making and hay-making treatments, there was a reduction in the vigour of the aerial parts of R. obtusifolius on the grazing treatment, associated with a reduction in the number of leaves (Experiment 1), in the size of the largest leaf (Experiment 1) and in the herbage mass of dry matter (Experiments 1 and 2). Roots had higher concentrations of total soluble sugar and lower concentrations of starch in the grazing treatment than in the other treatments. These results showed that a reduction in the vigour of R. obtusifolius in permanent grasslands is possible only if the plants are submitted to a high frequency of defoliation under cutting or grazing. [less ▲]

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See detailTowards a revison of the dairy cow's standard for nitrogen production: justification and what are consequences for soil link rate of dairy farms
Lambert, Richard; De Toffoli, M.; Dufrasne, Isabelle ULg et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2010), 14

Towards a revison of the dairy cow's standard for nitrogen production: justification and what are consequences for soil link rate of dairy farms. At present, the dairy cow's standard of nitrogen ... [more ▼]

Towards a revison of the dairy cow's standard for nitrogen production: justification and what are consequences for soil link rate of dairy farms. At present, the dairy cow's standard of nitrogen production in Walloon region is 90 kg per year. This standard is used to calculate the "soil link rate" of farms, a balance between the organic nitrogen to be spread on land and the quantity legally authorized considering grassland and arable land area. This standard is appreciably lower than that fixed by other member states and was criticized by the European Commission during the negotiations having ended in the second program of sustainable nitrogen management. Further to new studies, it seems that the gaseous loss of nitrogen averages in buildings and during the storage is weaker than the 15% value which was used to justify this 90 kg standard. It also seems that there are big differences of average dairy production and average rate of urea according to the agricultural regions and consequently that regional production standards correspond better to the reality. On basis of these mean values, the dairy cow's annual productions of nitrogen vary between 81 kg per year in grassy region of Fagne and 99 kg per year in Haute Ardenne and in grassy region from Liege. For the Walloon region in general, the average production is 94 kg per year. The adoption of different values of dairy cow's nitrogen production by region would lead to an increase of 8% of the soil link rate of dairy farms in Haute Ardenne and of 7% in grassy region from Liege and a decrease of 7% in grassy region of Fagne. [less ▲]

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See detailVers une révision de la norme de production d'azote de la vache laitière : justification et conséquences sur le taux de liaison
Lambert, Richard; De Toffoli, M.; Dufrasne, Isabelle ULg et al

in Marcoen, Jean Marie; Vandenberghe, Christophe (Eds.) Acte de l'atelier "Nitrate - Eau" (2010)

Towards a revison of the dairy cow’s standard for nitrogen production: justification and what are consequences for soil link rate of dairy farms. At present, the dairy cow’s standard of nitrogen ... [more ▼]

Towards a revison of the dairy cow’s standard for nitrogen production: justification and what are consequences for soil link rate of dairy farms. At present, the dairy cow’s standard of nitrogen production in Walloon region is 90 kg per year. This standard is used to calculate the “soil link rate” of farms, a balance between the organic nitrogen to be spread on land and the quantity legally authorized considering grassland and arable land area. This standard is appreciably lower than that fixed by other member states and was criticized by the European Commission during the negotiations having ended in the second program of sustainable nitrogen management. Further to new studies, it seems that the gaseous loss of nitrogen averages in buildings and during the storage is weaker than the 15% value which was used to justify this 90 kg standard. It also seems that there are big differences of average dairy production and average rate of urea according to the agricultural regions and consequently that regional production standards correspond better to the reality. On basis of these mean values, the dairy cow’s annual productions of nitrogen vary between 81 kg per year in grassy region of Fagne and 99 kg per year in Haute Ardenne and in grassy region from Liege. For the Walloon region in general, the average production is 94 kg per year. The adoption of different values of dairy cow’s nitrogen production by region would lead to an increase of 8% of the soil link rate of dairy farms in Haute Ardenne and of 7% in grassy region from Liege and a decrease of 7% in grassy region of Fagne. [less ▲]

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See detailPotentiel d'utilisation de régime à valeur OEB negative : essai croissance-finition de taurillons BBB.
Decruyenaere, Virginie; Bonnet, M.; Poncelet, Céline ULg et al

in Les filières aniales dans la tourmente : produire plus et mieux avec moins (2009)

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See detailIngestibilité et valeur alimentaire des foins issus de prairies de haute valeur biologique.
Decruyenaere, Virginie; Houba, Quentin; Stilmant, Didier ULg et al

in XVes Rencontres recherches ruminants (2008)

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See detailLe rumex à feuilles obtuses dans les systèmes herbagers : importance de la problématique, lutte chimique et méthodes alternatives
Stilmant, Didier ULg; Bodson, Bernard ULg; Knoden, D. et al

in Fourrages (2008), 192

Parmi les questions relatives à l'entretien des prairies, la lutte contre le rumex est une préoccupation fréquente, du fait de la vigueur et de la capacité d’adaptation considérables de la plante et de la ... [more ▼]

Parmi les questions relatives à l'entretien des prairies, la lutte contre le rumex est une préoccupation fréquente, du fait de la vigueur et de la capacité d’adaptation considérables de la plante et de la difficulté de la lutte contre cette adventice invasive dans des couverts complexes... Une enquête réalisée en région wallonne auprès d'exploitants agricoles et portant sur leurs pratiques de gestion et d'entretien des prairies montre l’importance de la pression exercée par Rumex obtusifolius L. qui représente un problème pour 40% d'entre eux ; la complémentation et l'épandage de lisier et de fumier de bovins sont corrélés avec la difficulté exprimée par les éleveurs. Une revue complète des traitements chimiques est effectuée selon la nature du couvert et l'âge de la prairie. Diverses méthodes de lutte alternatives sont également présentées (faux semis, type de travail du sol, gestion du pâturage…) ainsi que leur efficacité sur les jeunes plantules et sur les repousses de plantes de rumex. [less ▲]

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See detailLe rumex à feuilles obtuses dans les systèmes herbagers: importance de la problématique, lutte chimique et méthodes alternatives
Stilmant, Didier ULg; Knoden, D.; Bodson, Bernard ULg et al

in Fourrages (2007), (192), 477-493

Une enquête réalisée en région wallonne auprès d'exploitants agricoles et portant sur leurs pratiques de gestion et d'entretien des prairies montre l'importance de la pression exercée par rumex ... [more ▼]

Une enquête réalisée en région wallonne auprès d'exploitants agricoles et portant sur leurs pratiques de gestion et d'entretien des prairies montre l'importance de la pression exercée par rumex obtusifolius L. qui représente un problème pour 40 % d'entre eux; la complémentation et l'épandage de lisier et de fumier de bovins sont corrélés avec la difficulté exprimée par les éleveurs. Une revue complète des traitements chimiques est effectuée selon la nature du couvert et l'âge de la prairie. Diverses méthodes de lutte alternatives sont également présentées (faux semis, type de travail du sol, gestion du pâturage, ...) ainsi que leur efficacité sur les jeunes plantules et sur les repousses de plantes de rumex. [less ▲]

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See detailAppréhender le caractère durable des systèmes agraires
Stilmant, Didier ULg; Jamar, Daniel; Debouche, Charles ULg et al

in Proceeding des dixième carrefour des productions animales (2005, January 26)

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See detailAccuracy of the nitrate sampling scheme, proposed in Walloon area, for grazed grasslands
Hennart, Sylvain; Stilmant, Didier ULg; Lambert, Richard et al

in Schröder, J. J.; Neetson, J. J. (Eds.) N management in agrosystems in relation to the Water Framework Directive (2005)

Detailed reference viewed: 5 (0 ULg)