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Intensive field vegetable production is an important economic sector in Flanders. Several vegetable crops are harvested in a vegetative stage when high daily N uptake rates are achieved leaving behind soils with considerable N content. Vegetable crop residues take a particular position relative to arable crops due to often large amounts of biomass with a high N content left behind on the field. Vegetable crop residues have been found to mineralize rapidly even at low soil temperatures. These factors cause intensive vegetable rotations to be prone to nitrate leaching during winter. In order to obtain water quality objectives set by the nitrate directive three field experiments are set up to evaluate the potential of alternative crop rotations to reduce nitrate leaching during winter. The first alternative crop rotation examines the inclusion of Italian ryegrass (Lolium multiflorum) in cauliflower (Brassica oleracea var. botrytis) rotations. During the following spring the grass is harvested and a new cauliflower crop is planted. The second alternative crop rotation examines the use of two cover crops (Italian ryegrass or winter wheat (Secale cereale) after a cauliflower crop. However in contrast to the first alternative rotation the cover crop will be incorporated during spring instead of harvested. The vegetable crop residues are treated in a conventional manner, namely being left on the field and incorporated. Results and findings of the first season will be presented at the symposium.

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Chicago
Agneessens, Laura, Bart Vandecasteele, Tomas Van de Sande, Sara Crappé, Joris De Nies, Annemie Elsen, and Stefaan De Neve. 2013. “Potential of Alternative Crop Rotations for Reducing Nitrate Leaching Losses in Intensive Vegetable Rotations.” In NUTRIHORT : Nutrient Management, Innovative Techniques and Nutrient Legislation in Intensive Horticulture for an Improved Water Quality : Book of Abstracts, ed. Karoline D’Haene, Bart Vandecasteele, Raf De Vis, Sara Crappé, Danny Callens, Els Mechant, Georges Hofman, and Stefaan De Neve, 48–48. Merelbeke, Belgium: Institute of Agricultural and Fisheries Research (ILVO).
APA
Agneessens, L., Vandecasteele, B., Van de Sande, T., Crappé, S., De Nies, J., Elsen, A., & De Neve, S. (2013). Potential of alternative crop rotations for reducing nitrate leaching losses in intensive vegetable rotations. In Karoline D’Haene, B. Vandecasteele, R. De Vis, S. Crappé, D. Callens, E. Mechant, G. Hofman, et al. (Eds.), NUTRIHORT : nutrient management, innovative techniques and nutrient legislation in intensive horticulture for an improved water quality : book of abstracts (pp. 48–48). Presented at the NUTRIHORT : Nutrient management, innovative techniques and nutrient legislation in intensive horticulture for an improved water quality, Merelbeke, Belgium: Institute of Agricultural and Fisheries Research (ILVO).
Vancouver
1.
Agneessens L, Vandecasteele B, Van de Sande T, Crappé S, De Nies J, Elsen A, et al. Potential of alternative crop rotations for reducing nitrate leaching losses in intensive vegetable rotations. In: D’Haene K, Vandecasteele B, De Vis R, Crappé S, Callens D, Mechant E, et al., editors. NUTRIHORT : nutrient management, innovative techniques and nutrient legislation in intensive horticulture for an improved water quality : book of abstracts. Merelbeke, Belgium: Institute of Agricultural and Fisheries Research (ILVO); 2013. p. 48–48.
MLA
Agneessens, Laura, Bart Vandecasteele, Tomas Van de Sande, et al. “Potential of Alternative Crop Rotations for Reducing Nitrate Leaching Losses in Intensive Vegetable Rotations.” NUTRIHORT : Nutrient Management, Innovative Techniques and Nutrient Legislation in Intensive Horticulture for an Improved Water Quality : Book of Abstracts. Ed. Karoline D’Haene et al. Merelbeke, Belgium: Institute of Agricultural and Fisheries Research (ILVO), 2013. 48–48. Print.
@inproceedings{3224914,
  abstract     = {Intensive field vegetable production is an important economic sector in Flanders. Several vegetable crops are harvested in a vegetative stage when high daily N uptake rates are achieved leaving behind soils with considerable N content. Vegetable crop residues take a particular position relative to arable crops due to often large amounts of biomass with a high N content left behind on the field. Vegetable crop residues have been found to mineralize rapidly even at low soil temperatures. These factors cause intensive vegetable rotations to be prone to nitrate leaching during winter. In order to obtain water quality objectives set by the nitrate directive three field experiments are set up to evaluate the potential of alternative crop rotations to reduce nitrate leaching during winter. The first alternative crop rotation examines the inclusion of Italian ryegrass (Lolium multiflorum) in cauliflower (Brassica oleracea var. botrytis) rotations. During the following spring the grass is harvested and a new cauliflower crop is planted. The second alternative crop rotation examines the use of two cover crops (Italian ryegrass or winter wheat (Secale cereale) after a cauliflower crop. However in contrast to the first alternative rotation the cover crop will be incorporated during spring instead of harvested. The vegetable crop residues are treated in a conventional manner, namely being left on the field and incorporated. Results and findings of the first season will be presented at the symposium.},
  articleno    = {abstract 64},
  author       = {Agneessens, Laura and Vandecasteele, Bart and Van de Sande, Tomas and Crappé, Sara and De Nies, Joris and Elsen, Annemie and De Neve, Stefaan},
  booktitle    = {NUTRIHORT : nutrient management, innovative techniques and nutrient legislation in intensive horticulture for an improved water quality : book of abstracts},
  editor       = {D'Haene, Karoline and Vandecasteele, Bart and De Vis, Raf and Crappé, Sara and Callens, Danny and Mechant, Els and Hofman, Georges and De Neve, Stefaan},
  isbn         = {9789040303456},
  language     = {eng},
  location     = {Ghent, Belgium},
  pages        = {abstract 64:48--abstract 64:48},
  publisher    = {Institute of Agricultural and Fisheries Research (ILVO)},
  title        = {Potential of alternative crop rotations for reducing nitrate leaching losses in intensive vegetable rotations},
  year         = {2013},
}