Julie Lajeunesse, agr., M.sc.

Biologist in forage and small fruit crop management

Evaluation of various crop management regimes supporting the performance and stress resistance of perennial forage plants; and evaluation of the agronomic potential of various biomass crops and small fruit crops.

Current research and/or projects

Integrating forage crop management to optimize forage productivity, persistence and nutritive value/quality is a priority objective for the Forage and Beef Sector. To achieve this objective, my research activities are focused on the evaluation of 1) simple and complex forage mixtures for grazing, 2) methods for pasture renovation, and 3) crop management to increase alfalfa persistence in a cool and humid climate. Normandin research farm supports research in northern agriculture and I collaborate with breeders to evaluate germplasm for fall dormancy and persistence at Normandin site.

Research and/or project statements

Evaluation of simple and complex forage mixtures for grazing
Evaluation of pasture renovation
Evaluation of the effect of crop management on alfalfa persistence
Evaluation of the agronomic potential and fertilization of haskap

Key publications

Bertrand, A. Claessens, A., Thériault, M., Lajeunesse, J., Rocher, S., and Baron, V. 2022. Field Assessment of Alfalfa Populations Selected for Low Dormancy Within Winter-Hardy Cultivars. 2022 Joint Conference
NAAIC, Trifolium, & Grass Breeders, June 7-9, 2022, Lansing, MI, USA.
2022 - View publication details
Claessens, A., Bertrand, A., Thériault, M., Lajeunesse, J., and Rocher, S. 2022. Genetic Selection for High Energy in Alfalfa (Medicago Sativa L.) Stems. 2022 Joint Conference NAAIC, Trifolium, & Grass Breeders,
June 7-9, 2022, Lansing, MI, USA.
2022 - View publication details
s/o
2021 - View publication details
Bertrand, A., Claessens, A., Lajeunesse, J. and Baron, V.S. 2020. Risks and opportunities for alfalfa production in northern latitudes. Invited talk, Adaptation of forages to Climate Change. ASA/CSSA/SSSA Annual Meeting Virtual Phoenix.
2020 - View publication details
Seguin, P., Pomerleau-Lacasse, F., Drapeau, R., Lajeunesse, J., St-Pierre-Lepage, S. (2020). Productivity and persistence of Kura clover and white clover mixtures with grasses, 112(4), 2891-2904. http://dx.doi.org/10.1002/agj2.20233
2020 - View publication details
Bélanger, G., Tremblay, G.F., Seguin, P., Lajeunesse, J., Bittman, S., Hunt, D. (2020). Cutting management of alfalfa-based mixtures in contrasting agroclimatic regions. Agronomy Journal, [online] 112(2), 1160-1175. http://dx.doi.org/10.1002/agj2.20142
2020 - View publication details
Bélanger, G., Tremblay, G.F., Papadopoulos, Y.A., Duynisveld, J., Lajeunesse, J., Lafrenière, C., Fillmore, S.A.E. (2020). Yield and Nutritive Value of Grazed Complex Legume–grass Mixtures Under Increasing Nitrogen Application Rates. Canadian Journal of Plant Science, [online] 100(4), 341-356. http://dx.doi.org/10.1139/cjps-2018-0325
2020 - View publication details
Wood, S., Seguin, P., Tremblay, G.F., Bélanger, G., Lajeunesse, J., Martel, H., Berthiaume, R., St. Luce, M., Claessens, A. (2019). Predicting pre-harvest forage nutritive value of spring and summer growth of alfalfa–grass mixtures. Agronomy Journal, [online] 111(6), 3172-3181. http://dx.doi.org/10.2134/agronj2019.03.0199
2019 - View publication details
http://lait.org/fichiers/Revue/PLQ-2019-10/recherche.pdf
2019 - View publication details
Benmohamed, H. Poirier, V., Lafrenière, C. Lafond, J. et Lajeunesse, J. 2019. Quelles incidences peuvent avoir les mélanges fourragers et la gestion de la paissance sur le stockage et la biomasse racinaire? Présentation orale réalisée au 33 congrès annuel de l’AQSSS, Duhamel-Ouest, Qc. 11-14 juin
2019 - View publication details
Lafond, J., Cambouris, A.N., Perron, I. Lajeunesse, J. et Ziadi, N. 2019. Fertilisation azotée du bleuet sauvage : Impacts des conditions édaphiques. Présentation orale réalisée au 33 congrès annuel de l’AQSSS, Duhamel-Ouest, Qc. 11-14 juin.
2019 - View publication details
Bélanger, G., M.-N. Thivierge, G. Tremblay, A. Claessens, A. Bertrand et J. Lajeunesse. 2019. Améliorer les fourrages servis aux vaches laitières. Chronique du CQPF (Conseil québécois des plantes fourragères) parue dans La Terre de Chez Nous, 5 mai. https://www.laterre.ca/du-secteur/chronique-cqpf/ameliorer-les-fourrages-servis-aux-vaches-laitieres
2019 - View publication details
Lauzon, J., Tremblay, G.F., Bélanger, G., Seguin, P., Lajeunesse, J., Gervais, R. (2019). Alfalfa and timothy nutritive value in contrasting agroclimatic regions. Agronomy Journal, [online] 111(3), 1371-1380. http://dx.doi.org/10.2134/agronj2018.10.0634
2019 - View publication details
Tremblay, C., Deslauriers, A., Lafond, J., Lajeunesse, J., Paré, M.C. (2019). Effects of soil ph and fertilizers on haskap (Lonicera caeruleal.) vegetative growth. Agriculture (Switzerland), [online] 9(3), http://dx.doi.org/10.3390/agriculture9030056
2019 - View publication details
BÉLANGER, G. THIVIERGE MN, TREMBLAY, G. CLAESSENS, A. BERTRAND A.LAJEUNESSE J. et SEGUIN, P. Améliorer le ratio Énergie/Protéine des fourrages servis aux vaches laitières.Présentation orale lors de la Journée d’Information Scientifique – Bovins Laitiers et Plantes Fourragères du CRAAQ. Drummondville. 26 février 2019.
2019 - View publication details
BÉLANGER, G. THIVIERGE MN, TREMBLAY, G. CLAESSENS, A. BERTRAND A.LAJEUNESSE J. et SEGUIN, P. Améliorer le ratio Énergie/Protéine des fourrages servis aux vaches laitières.Présentation orale lors de la Journée d’Information Scientifique – Bovins Laitiers et Plantes Fourragères du CRAAQ. Drummondville. 26 février 2019.
2019 - View publication details
Pomerleau-Lacasse, F., Seguin, P., Tremblay, G.F., Bélanger, G., Lajeunesse, J., Charbonneau, É. (2019). Alternatives to timothy grown in mixture with alfalfa in eastern Canada. Agronomy Journal, [online] 111(1), 314-327. http://dx.doi.org/10.2134/agronj2018.05.0309
2019 - View publication details
Abdi, D., Cade-Menun, B.J., Ziadi, N., Shi, Y., Bélanger, G., Lajeunesse, J., Lafond, J. (2019). A31 P-NMR spectroscopic study of phosphorus forms in two phosphorus-fertilized grassland soils in Eastern Canada. Canadian Journal of Soil Science, [online] 99(2), 161-172. http://dx.doi.org/10.1139/cjss-2018-0125
2019 - View publication details
Bélanger, G., Thivierge, M.-N., Tremblay, G., Claessens, A., Bertrand, A., Lajeunesse, J. et Seguin, P. 2018. Améliorer le ratio Énergie / Protéines des fourrages servis aux vaches laitières. Affiche présentée au Symposium sur les Bovins laitiers. Drummondville, 30 octobre.
2018 - View publication details
Lajeunesse, J. J. Lafond, A.N. Cambouris, and I. Perron. 2018. Wild blueberry : disease incidence in different management zones. Affiche scientifique présentée dans le cadre de la rencontre annuelle de la Société Canadienne en Science Horticole 2018, Niagara Falls, ON, du 4 au 6 octobre 2018.
2018 - View publication details