Search Results - "Beukes, Pierre C."

Screening for diets that reduce urinary nitrogen excretion and methane emissions while maintaining or increasing production by dairy cows by Gregorini, Pablo, Beukes, Pierre C., Dalley, Dawn, Romera, Alvaro J.

“…Farmers face complex decisions at the time to feed animals, trying to achieve production goals while contemplating social and environmental constraints. Our…”
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Farm-scale carbon and nitrogen fluxes in pastoral dairy production systems using different nitrogen fertilizer regimes by Beukes, Pierre C., Gregorini, Pablo, Cameron, Keith, Attwood, Graeme T.

“…The nitrogen (N) fertilizer application rate (kg ha −1  year −1 ) in pastoral dairy systems affects the flow of N through the soil, plant and animal pools of…”
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Assessing the production and economic benefits from preventing cows grazing on wet soils in New Zealand by Laurenson, Seth, Houlbrooke, David J, Beukes, Pierre C

“…BACKGROUND Intensive grazing by cattle on wet pasture can have a negative effect on soil physical quality and future pasture production. On a North Otago dairy…”
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Combining Restricted Grazing and Nitrification Inhibitors to Reduce Nitrogen Leaching on New Zealand Dairy Farms by Romera, Alvaro J., Cichota, Rogerio, Beukes, Pierre C., Gregorini, Pablo, Snow, Val O., Vogeler, Iris

“…Intensification of pastoral dairy systems often means more nitrogen (N) leaching. A number of mitigation strategies have been proposed to reduce or reverse…”
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A model of diurnal grazing patterns and herbage intake of a dairy cow, MINDY: Model description by Gregorini, Pablo, Beukes, Pierre C., Romera, Alvaro J., Levy, Gil, Hanigan, Mark D.

“…•We developed a model of diurnal grazing pattern and herbage intake of dairy cows.•The model relates direct and indirect controls of feeding motivation…”
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Identifying causes of low persistence of perennial ryegrass (Lolium perenne) dairy pasture using the Basic Grassland model (BASGRA) by Woodward, Simon J. R., Van Oijen, Marcel, Griffiths, Wendy M., Beukes, Pierre C., Chapman, David F.

“…Recent years have seen a decline in herbage production and tiller populations in New Zealand's perennial ryegrass (Lolium perenne) dairy pastures. One…”
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Stacking nitrogen mitigation strategies for future pasture-based dairy farms: impacts on leaching and profit by Beukes, Pierre C., Depree, Craig, Macintosh, Katrina A., Silva-Villacorta, David

“…Producers in New Zealand’s pasture-based, seasonal dairy sector are striving to reduce nitrogen (N) losses to the environment whilst maintaining or increasing…”
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Cost-effective mitigation of greenhouse gas emissions from different dairy systems in the Waikato region of New Zealand by Adler, Alfredo A., Doole, Graeme J., Romera, Alvaro J., Beukes, Pierre C.

“…The New Zealand dairy industry produces approximately 17% of this country's total greenhouse gas emissions (GHG-e) and it is also this nation's largest export…”
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Production, profit and nitrogen flows in irrigated dairy systems representing different industry development pathways: the Pastoral 21 experience in Canterbury by Chapman, David F., Dalley, Dawn E., Edwards, Grant R., Cameron, Keith C., Malcolm, Brendon J., Clement, Anna, Romera, Alvaro J., Pinxterhuis, Ina B., Beukes, Pierre C., Di, Hong J., Bryant, Racheal H., Curtis, Jeff

“…Future development pathways for irrigated dairy farms in Canterbury operating under stricter nitrogen (N) loss limits were compared in two farmlets over four…”
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A urine patch framework to simulate nitrogen leaching on New Zealand dairy farms by Romera, Alvaro J., Levy, Gil, Beukes, Pierre C., Clark, Dave A., Glassey, Chris B.

“…On New Zealand dairy farms, it is the nitrogen excreted directly onto pasture, particularly urine, that drives nitrogen (N) leaching from the farm. A new…”
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Performance of pasture-based dairy systems subject to economic, climatic and regulatory uncertainty by Beukes, Pierre C., Romera, Alvaro J., Neal, Mark, Mashlan, Kim

“…Viable pasture-based dairy businesses need to cope with increasing variability in milk price, extremes in weather, and an uncertain regulatory environment that…”
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Evaluating nutrient abatement policies for a pastorally farmed catchment-lagoon ecosystem: A New Zealand case study by Beukes, Pierre C., Weeber, Marc, Neal, Mark, Thiange, Christophe, Burger, David F.

“…Anthropogenic nutrient input is one of the greatest causes of freshwater and coastal eutrophication worldwide. In many catchments, nutrient losses must be…”
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The role and value of diverse sward mixtures in dairy farm systems of New Zealand: An exploratory assessment by Romera, Alvaro J., Doole, Graeme J., Beukes, Pierre C., Mason, Norman, Mudge, Paul L.

“…New Zealand dairy farm systems mostly rely on ryegrass-white clover pastures. The inclusion of diverse sward mixtures within these systems offers a novel…”
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Comment on ‘An examination of the ability of plantain ( Plantago lanceolata L.) to mitigate nitrogen leaching from pasture systems’ by Fransen, Kate E., Gard, Sarah M., Pinxterhuis, Ina, Minnée, Elena M. K., Peterson, Michelle E., Mudge, Paul, Woods, Roshean R., Al-Marashdeh, Omar, Horne, David, Beukes, Pierre C., Dodd, Mike, Clague, Juliet

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Managing greenhouse gas emissions in two major dairy regions of New Zealand: A system-level evaluation by Adler, Alfredo A., Doole, Graeme J., Romera, Alvaro J., Beukes, Pierre C.

“…•The study identifies cost-effective means to reduce greenhouse gas emissions.•This is performed for farms in the two main dairy regions of New…”
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