Search Results - "Ruiter, John de"

The interactions between genotype, management and environment in regional crop modelling by Teixeira, Edmar I., Zhao, Gang, Ruiter, John de, Brown, Hamish, Ausseil, Anne-Gaelle, Meenken, Esther, Ewert, Frank

“…•Spatial data on genotype (G) and management (M) for regional crop models are scarce.•We test the sensitivity of maize simulations to hybrids and sowing dates…”
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Sources of variability in the effectiveness of winter cover crops for mitigating N leaching by Teixeira, Edmar I., Johnstone, Paul, Chakwizira, Emmanuel, Ruiter, John de, Malcolm, Brendon, Shaw, Naomi, Zyskowski, Robert, Khaembah, Edith, Sharp, Joanna, Meenken, Esther, Fraser, Patricia, Thomas, Steve, Brown, Hamish, Curtin, Denis

“…•Cover crop effectiveness to reduce nitrogen leaching is widely variable.•We assess this variability for field trials in the Canterbury Plains of New…”
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Range of quality characteristics of New Zealand forages and implications for reducing the nitrogen leaching risk from grazing dairy cows by Dalley, Dawn E., Malcolm, Brendon J., Chakwizira, Emmanuel, de Ruiter, John M.

“…The New Zealand Government's National Policy Statement on Fresh Water Management has resulted in increased scrutiny of New Zealand grazing systems with regards…”
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Catch crops and feeding strategy can reduce the risk of nitrogen leaching in late lactation fodder beet systems by Malcolm, Brendon J., de Ruiter, John M., Dalley, Dawn E., Carrick, Sam, Waugh, Deanne, Arnold, Nathan P., Dellow, Steven J., Beare, Mike H., Johnstone, Paul R., Wohlers, Mark, Brown, Hamish, Welten, Brendon, Horrocks, Abie J.

“…Autumn grazing of high-yielding forage crops such as fodder beet (FB) has increased in popularity in many regions of New Zealand. During grazing, large amounts…”
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Crop management effects on supplementary feed quality and crop options for dairy feeding to reduce nitrate leaching by de Ruiter, John M., Malcolm, Brendon J., Chakwizira, Emmanuel, Johnstone, Paul R., Maley, Shane, Arnold, Nathan P., Dalley, Dawn E.

“…Nitrate leaching from soil is a major problem in New Zealand pastoral systems, requiring development of practical methods to manage accumulation of nitrates…”
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Performance of Winter-Sown Cereal Catch Crops after Simulated Forage Crop Grazing in Southland, New Zealand by Malcolm, Brendon, Maley, Shane, Teixeira, Edmar, Johnstone, Paul, de Ruiter, John, Brown, Hamish, Armstrong, Stewart, Dellow, Steven, George, Mike

“…(1) Background: Winter grazing of livestock poses significant environmental risks of nitrogen (N) leaching and sediment runoff. (2) Methods: A field study…”
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The effect of kale cultivar and sowing date on dry‐matter intake, crop utilization, liveweight gain and body condition score gain of pregnant, nonlactating dry dairy cows in winter in New Zealand by Cheng, Long, Groves, C. D., Ruiter, John M., Dewhurst, Richard J., Edwards, Grant R.

“…An outdoor grazing study on kale was conducted with pregnant, nonlactating (dry) dairy cows over a 42‐day winter grazing period commencing 9 June 2008. Kale…”
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Maize silage-winter crop sequences that maximise forage production and quality by Chakwizira, Emmanuel, Fletcher, Andrew L., Johnstone, Paul R., de Ruiter, John M., Pearson, Andrea J., Parker, Mike

“…The effects of winter crop selection, timing of harvest dates for the winter crop and sowing date and hybrid duration for maize crops on total biomass and feed…”
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Adapting crop rotations to climate change in regional impact modelling assessments by Teixeira, Edmar I., de Ruiter, John, Ausseil, Anne-Gaelle, Daigneault, Adam, Johnstone, Paul, Holmes, Allister, Tait, Andrew, Ewert, Frank

“…The environmental and economic sustainability of future cropping systems depends on adaptation to climate change. Adaptation studies commonly rely on…”
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The impact of water and nitrogen limitation on maize biomass and resource-use efficiencies for radiation, water and nitrogen by Teixeira, Edmar I., George, Michael, Herreman, Thibault, Brown, Hamish, Fletcher, Andrew, Chakwizira, Emmanuel, de Ruiter, John, Maley, Shane, Noble, Alasdair

“…•This study illustrates trade-offs between yields and resource-use efficiencies.•Water and N supply treatments produced maize biomass yields from 8 to…”
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Productivity and environmental implications of fodder beet and maize silage as supplements to pasture for late lactation dairy cows by Dalley, Dawn, Waugh, Deanne, Griffin, Amelia, Higham, Caleb, de Ruiter, John, Malcolm, Brendon

“…A short-term, dairy cow, grazing experiment was conducted in late-lactation (autumn) to determine the effect of fodder beet (FB) and maize silage…”
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Water and nitrogen stress effects on canopy development and biomass allocation in fodder beet (Beta vulgaris L.) by Khaembah, Edith N., Maley, Shane, Gillespie, Richard, George, Mike, Michel, Alexandre J., Chakwizira, Emmanuel, de Ruiter, John, Teixeira, Edmar

“…The effects of water stress on fodder beet (Beta vulgaris L.) production in the field are confounded by the influences of variable inter- and intra-season…”
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Crop growth and development dynamics of two fodder beet (Beta vulgaris L.) cultivars sown on different dates in New Zealand by Khaembah, Edith N., Maley, Shane, George, Mike, Chakwizira, Emmanuel, de Ruiter, John, Zyskowski, Rob, Teixeira, Edmar

“…Two fodder beet (Beta vulgaris L.) cultivars ('Rivage' and SF Brigadier™) were evaluated in a field experiment to quantify the effect of cultivar and sowing…”
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interactions between genotype, management and environment in regional crop modelling by Teixeira, Edmar I, Gang Zhao, John de Ruiter, Hamish Brown, Anne-Gaelle Ausseil, Esther Meenken, Frank Ewert

“…Biophysical models to simulate crop yield are increasingly applied in regional climate impact assessments. When performing large-area simulations, there is…”
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Characterization of trifluoroacetic acid hydrolyzed subtropical forage grass cell walls by De Ruiter, John M, Burns, Joseph C

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Rapid determination of cell wall monosaccharides in flaccidgrass by De Ruiter, John M, Burns, Joseph C

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Book reviews by McKenzie, E. H. C., Mickelbart, Michael V., Pickering, Richard, de Ruiter, John

“…Taxonomy and pathology of Cylindrocladium (Calonectria) and allied genera. By Pedro W. Crous. Published in 2002 by APS Press, 3340 Pilot Knob Road, St Paul, MN…”
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Book reviews by McKenzie, E. H. C., Mickelbart, Michael V., Pickering, Richard, de Ruiter, John

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