Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 547541
Title Effect of nitrogen and phosphorus fertilisation and their interaction on nitrogen-phosphorus ratio of grass
Author(s) Curth-van Middelkoop, J.C.
Source In: Sustainable meat and milk productions from grasslands. - Cork : European Grassland Federation EGF (EGF Grassland science in Europe ) - ISBN 9781841706436 - p. 565 - 567.
Event Cork : European Grassland Federation EGF (EGF Grassland science in Europe ) - ISBN 9781841706436 27th European Grassland Federation General Meeting Cork (EGF 2018), Cork, 2018-06-17/2018-07-21
Department(s) Animal Nutrition
Publication type Contribution in proceedings
Publication year 2018
Abstract In many EU countries fertilisation of grassland with nitrogen (N) and phosphorus (P) is limited by legislation. In earlier research in grassland experiments usually one nutrient was varied and a non-limiting amount of the other was applied. The interaction of the effects of N and P has been less addressed. Additionally, grass is sometimes presumed to have a constant N:P ratio. In the Netherlands, in the period 1994 - 2003, four separate field experiments were undertaken on four soil types. In these field experiments permanent grassland was fertilised with different N and P levels over a period of five and six years. Phosphorus fertilisation level had a negative effect and N fertilisation level had a positive effect on N:P ratio. At higher N levels, the influence of P fertilisation was stronger. Over time the (negative) influence of P fertilisation level also became stronger. The influence of N did not change systematically over time. Both N and P fertilisation levels should be taken into account to estimate N:P ratio.
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