Search Results - "Hoekstra, N.J"

Strategic timing of nitrogen fertilization to increase root biomass and nitrogen-use efficiency of Lolium perenne L by de Boer, H.C., Deru, J.G.C., Hoekstra, N.J., van Eekeren, N.

“…Aims During the first days after harvest of Lolium perenne L., N remobilized from roots and stubble forms the main N source for regrowth. Low N uptake from the…”
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Pathways to improving the N efficiency of grazing bovines by Hoekstra, N.J., Schulte, R.P.O., Struik, P.C., Lantinga, E.A.

“…Livestock production has been identified as a major source of nitrogen (N) losses. Therefore, it is important to reduce N output through animal excretions by…”
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Can herbage nitrogen fractionation in Lolium perenne be improved by herbage management? by Hoekstra, N.J., Struik, P.C., Lantinga, E.A., Van Amburgh, M.E., Schulte, R.P.O.

“…The high degradability of grass protein is an important factor in the low nitrogen (N) utilization of grazing bovines in intensive European grassland systems…”
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Chemical composition of lamina and sheath of Lolium perenne as affected by herbage management by Hoekstra, N.J., Struik, P.C., Lantinga, E.A., Schulte, R.P.O.

“…The quality of grass in terms of form and relative amounts of energy and protein affects both animal production per unit of intake and nitrogen (N)…”
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Scenarios to limit environmental nitrogen losses from dairy expansion by Hoekstra, N.J., Schulte, R.P.O., Forrestal, P.J., Hennessy, D., Krol, D.J., Lanigan, G.J., Müller, C., Shalloo, L., Wall, D.P., Richards, K.G.

“…[Display omitted] •Intensification scenarios increased absolute N emissions compared to baseline.•Intensification scenarios may result in reduced N emission…”
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Red clover varieties of Mattenklee type have higher production, protein yield and persistence than Ackerklee types in grass–clover mixtures by Hoekstra, N. J., De Deyn, G. B., Xu, Y., Prinsen, R., Van Eekeren, N.

“…Dairy farmers have increased interest in multiyear red clover–ryegrass ley pasture swards because of their high productivity and protein concentration but the…”
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Methodological tests of the use of trace elements as tracers to assess root activity by Hoekstra, N. J, Finn, J. A, Buchmann, N, Gockele, A, Landert, L, Prill, N, Scherer-Lorenzen, M, Lüscher, A

“…BACKGROUND AND AIMS: There is increasing interest in how resource utilisation in grassland ecosystems is affected by changes in plant diversity and abiotic…”
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Effects of cattle dung from farms with different feeding strategies on germination and initial root growth of cress ( Lepidium sativum L.) by Hoekstra, N.J, Bosker, T, Lantinga, E.A

“…Cattle dung from four farms with different feeding strategies was used in a bioassay to determine phytotoxicity. The first farm was an extensive organic farm…”
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The fate of slurry-N fractions in herbage and soil during two growing seasons following application by Hoekstra, N. J., Lalor, S. T. J., Richards, K. G., O'Hea, N., Dungait, J. A. J., Schulte, R. P. O., Schmidt, O.

“…Farmers are under increasing pressure to use slurry-nutrients more efficiently in order to maximise crop utilisation and minimise losses to the environment…”
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Modelling the concentrations of nitrogen and water-soluble carbohydrates in grass herbage ingested by cattle under strip-grazing management by Hoekstra, N.J, Schulte, R.P.O

“…There is scope of increasing the nitrogen (N) efficiency of grazing cattle through manipulation of the energy and N concentrations in the herbage ingested…”
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Effect of cattle dung from farms with different feeding strategies on germination and initial root growth of cress (Lepidium sativum L.) by Hoekstra, N.J, Bosker, T, Lantinga, E.A

“…Cattle dung from four farms with different feeding strategies was used in a bioassay to determine phytotoxicity. The first farm was an extensive organic farm…”
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