Sward quality and yields of grassland in a dairy farm with reduced fertilizer N rates

Research output: Chapter in Book/Report/Conference proceedingConference paper

Abstract

The objective of this study was to explore under farming conditions the effect of reduced fertilizer N application rates on the dynamics of botanical composition and yields of grass-clover-swards. In both temporary and permanent grassland the percentage of highly productive grasses (good grasses) declined at a constant rate of 3.0 to 6.3% points y‑1 during the aging of the sward. Good grasses were replaced by less-productive grasses and herbs. The percentage of clover did not show a significant trend. Reduced N fertilization did not significantly change these dynamics. The percentage of white clover and, in some cases, high-yielding grasses in the sward, enhanced the yields of nitrogen and herbage dry matter, while the percentage of herbs reduced yields.
Original languageEnglish
Title of host publicationGrassland and forages in high output dairy farming systems
Subtitle of host publicationProceedings of the 18th Symposium of the European Grassland Federation Wageningen, the Netherlands 15-17 June 2015
EditorsA. van den Pol-van Dasselaar, H.F.M. Aarts, A. De Vliegher, A. Elgersma, D. Reheul, J.A. Reijneveld, J. Verloop, A. Hopkins
Place of PublicationWageningen
PublisherWageningen Academic Publishers
Pages337-339
Volume20
ISBN (Print)9789090289618
Publication statusPublished - 17 Jun 2015
Event18th Symposium of the European Grassland Federation Grassland and forages in high output dairy farming systems -
Duration: 15 Jun 201517 Jun 2015

Publication series

NameGrassland Science in Europe
Volume20

Conference

Conference18th Symposium of the European Grassland Federation Grassland and forages in high output dairy farming systems
Period15/06/1517/06/15

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Verloop, J., Oenema, J., & Geerts, R. H. E. M. (2015). Sward quality and yields of grassland in a dairy farm with reduced fertilizer N rates. In A. van den Pol-van Dasselaar, H. F. M. Aarts, A. De Vliegher, A. Elgersma, D. Reheul, J. A. Reijneveld, J. Verloop, ... A. Hopkins (Eds.), Grassland and forages in high output dairy farming systems: Proceedings of the 18th Symposium of the European Grassland Federation Wageningen, the Netherlands 15-17 June 2015 (Vol. 20, pp. 337-339). (Grassland Science in Europe; Vol. 20). Wageningen: Wageningen Academic Publishers.