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

J. Verloop; J. Oenema; R.H.E.M. Geerts

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

Research output: Chapter in Book/Report/Conference proceeding › Conference 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 language	English
Title of host publication	Grassland and forages in high output dairy farming systems
Subtitle of host publication	Proceedings of the 18th Symposium of the European Grassland Federation Wageningen, the Netherlands 15-17 June 2015
Editors	A. 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 Publication	Wageningen
Publisher	Wageningen Academic Publishers
Pages	337-339
Volume	20
ISBN (Print)	9789090289618
Publication status	Published - 17 Jun 2015
Event	18th Symposium of the European Grassland Federation Grassland and forages in high output dairy farming systems - Duration: 15 Jun 2015 → 17 Jun 2015

Publication series

Name	Grassland Science in Europe
Volume	20

Conference

Conference	18th Symposium of the European Grassland Federation Grassland and forages in high output dairy farming systems
Period	15/06/15 → 17/06/15

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Cite this

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.

Verloop, J. ; Oenema, J. ; Geerts, R.H.E.M. / Sward quality and yields of grassland in a dairy farm with reduced fertilizer N rates. 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. editor / A. van den Pol-van Dasselaar ; H.F.M. Aarts ; A. De Vliegher ; A. Elgersma ; D. Reheul ; J.A. Reijneveld ; J. Verloop ; A. Hopkins. Vol. 20 Wageningen : Wageningen Academic Publishers, 2015. pp. 337-339 (Grassland Science in Europe).

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title = "Sward quality and yields of grassland in a dairy farm with reduced fertilizer N rates",

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.",

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Verloop, J , Oenema, J & Geerts, RHEM 2015, Sward quality and yields of grassland in a dairy farm with reduced fertilizer N rates. in A van den Pol-van Dasselaar, HFM Aarts, A De Vliegher, A Elgersma, D Reheul, JA 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, Grassland Science in Europe, vol. 20, Wageningen Academic Publishers, Wageningen, pp. 337-339, 18th Symposium of the European Grassland Federation Grassland and forages in high output dairy farming systems, 15/06/15.

Sward quality and yields of grassland in a dairy farm with reduced fertilizer N rates. / Verloop, J.; Oenema, J.; Geerts, R.H.E.M.

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. ed. / A. van den Pol-van Dasselaar; H.F.M. Aarts; A. De Vliegher; A. Elgersma; D. Reheul; J.A. Reijneveld; J. Verloop; A. Hopkins. Vol. 20 Wageningen : Wageningen Academic Publishers, 2015. p. 337-339 (Grassland Science in Europe; Vol. 20).

Research output: Chapter in Book/Report/Conference proceeding › Conference paper

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T1 - Sward quality and yields of grassland in a dairy farm with reduced fertilizer N rates

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AU - Oenema, J.

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N2 - 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.

AB - 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.

M3 - Conference paper

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BT - Grassland and forages in high output dairy farming systems

A2 - van den Pol-van Dasselaar, A.

A2 - Aarts, H.F.M.

A2 - De Vliegher, A.

A2 - Elgersma, A.

A2 - Reheul, D.

A2 - Reijneveld, J.A.

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PB - Wageningen Academic Publishers

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Verloop J , Oenema J , Geerts RHEM. Sward quality and yields of grassland in a dairy farm with reduced fertilizer N rates. In van den Pol-van Dasselaar A, Aarts HFM, De Vliegher A, Elgersma A, Reheul D, Reijneveld JA, Verloop J, Hopkins A, editors, 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. Wageningen: Wageningen Academic Publishers. 2015. p. 337-339. (Grassland Science in Europe).

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