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N. J. Hoekstra
Teagasc
34Publications
9H-index
345Citations
Publications 38
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Due to the increased herd size in the Netherlands, there is need to assess the performance of different grazing systems at high stocking densities. The objective of the current experiment was to assess the effect of two extreme grazing systems, kurzrasen (continuous grazing at 3–5 cm sward height) and strip-grazing at a high stocking rate, on grass production and quality, grass morphology and sward density, root development and load bearing capacity on peat soil. To this end, a two-year grazing ...
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#1R.L.M. SchilsH-Index: 3
#2Bert PhilipsenH-Index: 1
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In many intensive dairy regions in northwest Europe, a decline in grazing is observed. In the Netherlands, the proportion of dairy cows with access to pasture is declining, as well as the time spent grazing per cow. The decline in grazing is seen as an unwanted trend by many stakeholders and is, thus, under debate amongst dairy farmers, the dairy chain, and society. Therefore, a public–private partnership was initiated to encourage grazing by providing farmers with usable means of improving thei...
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#1J. DeruH-Index: 3
#2Jaap BloemH-Index: 43
Last.Nick van EekerenH-Index: 10
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Abstract Considerable nitrogen (N) mineralization occurs in drained peat soils in use for dairy grassland, due to aerobic decomposition of soil organic matter (SOM). N losses may be limited by matching grass N uptake with N mineralization and by adapting on-farm fertilization schemes to soil N supply (SNS) and apparent N recovery (ANR). Previous attempts to predict SNS of peat grasslands from soil parameters have been unsuccessful, partly due to high variation in SNS between sites and years. In ...
1 CitationsSource
Introduction: Grass-clover mixtures show many benefits for sustainable agriculture. In the Netherlands, organic arable and livestock farmers often work together in a so-called partner farm concept: the arable farms grow one-year grass-clover leys to widen their crop rotation and as fodder for a livestock farm in exchange for manure. The aim of this research was to investigate the effect of different grass-clover mixtures and monocultures in a one-year ley on both aboveground and belowground para...
#2N. J. HoekstraH-Index: 9
Last.Nick van EekerenH-Index: 10
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Grass-clover mixtures show many benefits for sustainable agriculture. In the Netherlands, organic farmers often work together in a so-called partner farm concept, with the aim to close nutrient cycles on a regional level. In this system, arable farms grow one-year grass-clover leys, as fodder for a livestock farm, in exchange for, e.g., manure. This practice could also be used in the transition of conventional farms towards a more circular regenerative and nature inclusive agriculture. In the cu...
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#2N. J. HoekstraH-Index: 9
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Kruiden in grasland staan volop in de belangstelling. Vanuit het perspectief van weidevogelbeheer en vanuit de functionaliteit voor de bedrijfsvoering. Maar welke mengsels te gebruiken? En welk beheer is nodig om de functionaliteit goed tot zijn recht te laten komen? In de projecten ‘Koeien en Kruiden’ en de ‘Proeftuin Trots op Krimpenerwaard’ worden deze vragen opgepakt.
#1Eamon Haughey (UCD: University College Dublin)H-Index: 1
#2Matthias SuterH-Index: 12
Last.John A. Finn (Teagasc)H-Index: 26
view all 7 authors...
Climate models predict increased frequency and severity of drought events. At an Irish and Swiss site, experimental summer droughts were applied over two successive years to grassland plots sown with one, two or four grassland species with contrasting functional traits. Mean yield and plot-to-plot variance of yield were measured across harvests during drought and after a subsequent post-drought recovery period. At both sites, there was a positive relationship between species richness and yield. ...
1 CitationsSource
#1R.L.M. SchilsH-Index: 3
#2A.P. PhilipsenH-Index: 1
Last.A. van den PolH-Index: 2
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The Amazing Grazing project addresses the challenges that Dutch farmers face in grazing systems with high feed supplementation and high stocking rates on available grazing area. The project consists of six interlinked components (soil, grass growth, grass supply, grass intake, supllementation and behaviour), that are arranged around two grazing and three cutting experiments, as well as three farmer consultation groups. The grazing experiment showed that fresh grass intakes of approximately 6 kg ...
#1N. J. Hoekstra (Radboud University Nijmegen)H-Index: 9
#2G. B. De Deyn (WUR: Wageningen University and Research Centre)H-Index: 2
Last.N.J.M. van EekerenH-Index: 3
view all 5 authors...
Dairy farmers have increased interest in multiyear red clover–ryegrass ley pasture swards because of their high productivity and protein concentration but the adoption of such mixtures has been restricted because of poor persistency of many red clover cultivars currently used. We aimed (i) to assess dry-matter yield (DMY), persistence and nutritive value of four Mattenklee and four Ackerklee cultivars and (ii) to investigate the underlying plant morphological traits. We conducted a 4-year field ...
2 CitationsSource
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