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    The effect of optimum vs deficit irrigation on plant nitrogen uptake and nitrate leaching loss from soil 

    Carlton, Anna; Cameron, Keith C.; Edwards, Grant; Di, Hong J.; Clough, Timothy J. (Fertilizer and Lime Research Centre, Massey University, 2016)
    Nitrate (NO₃⁻) leaching, associated with urine nitrogen (N) deposition during grazing is recognised as a significant environmental problem. In this study it was hypothesised that optimum irrigation could increase plant ...
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    Can a winter-sown catch crop reduce nitrate leaching losses after winter forage grazing? 

    Carey, Peter; Cameron, Keith C.; Di, Hong J.; Edwards, Grant; Chapman, D. F. (Fertilizer and Lime Research Centre, 2016)
    Direct grazing of winter forage crops to feed non-lactating, pregnant dairy cows prior to calving is a common management practice in the New Zealand South Island. However, the high crop yields per hectare grazed, combined ...
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    Italian ryegrass swards reduce N leaching via greater N uptake and lower drainage over perennial ryegrass cultivars varying in cool season growth rates 

    Maxwell, Thomas M. R.; McLenaghen, Roger D.; Edwards, Grant; Di, Hong J.; Cameron, Keith C. (Taylor & Francis on behalf of the Royal Society of New Zealand, 2018-02-04)
    Pasture mitigation strategies are needed to reduce the negative effects of nitrate (NO₃⁻) leaching from intensive pastoral livestock production systems. We explored the capability of pasture grasses with different cool ...
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    Potential inhibition of urine patch nitrous oxide emissions by Plantago lanceolata and its metabolite aucubin 

    Gardiner, Camilla; Clough, Timothy J.; Cameron, Keith C.; Di, Hong J.; Edwards, Grant; de Klein, C. A. M. (Taylor & Francis on behalf of the Royal Society of New Zealand, 2017-12-12)
    Plantain (Plantago lanceolata L.), a forage used in grazed pastures, contains active secondary metabolites that could potentially inhibit nitrification, a key step in nitrous oxide (N₂O) production from grazing ruminant ...
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    Ex-vivo cow rumen fluid fermentation: Changes in microbial populations and fermentation products with different forages 

    Fang, Haitian; Al-Marashdeh, Omar; Zhou, Huitong; Podolyan, Andriy; Hickford, Jonathan G. H.; Edwards, Grant; Cameron, Keith C.; Cheng, L. (Taylor & Francis, 2018-07-09)
    This study investigated the effects of three forage treatments [herbal plantain (PL), ryegrass-white clover pasture (RW) and root crop fodder beet (FB)] on ex-vivo rumen fluid fermentations. Quantitative real-time Polymerase ...
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    Mitigation of nitrous oxide emissions using a nitrification inhibitor, alternative pasture and forage plants and gibberellic acid 

    Di, Hong J.; Cameron, Keith C.; Podolyan, Andriy; Edwards, Grant; de Klein, C. A. M.; Dynes, R.; Ball, B.; Shen, J.; He, J. (SLU, 2016-06)
    In grazed pastures, nitrous oxide (N₂O), the potent greenhouse gas, is mostly emitted from animal excreta, particularly animal urine-N retuned to the soil during grazing. N₂O is produced in the soil through nitrification ...
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    ¹⁵N recoveries from ruminant urine patches on three forage types 

    Woods, R. R.; Cameron, Keith C.; Edwards, Grant; Di, Hong J.; Clough, Timothy J. (Springer Verlag on behalf of the Royal Netherlands Society of Agricultural Science, 2017-05-17)
    Background and aims: ¹⁵Nitrogen balances are useful tools to increase our understanding of soil N processes and the efficiency of plants in taking up animal urine-N. This study aimed to investigate the effect of forage ...
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    Ruminant urine patch nitrification and N₂O flux: Effects of urine aucubin rate in a laboratory trial 

    Gardiner, Camilla; Clough, Timothy J.; Cameron, Keith C.; Di, Hong J.; Edwards, Grant (Taylor & Francis on behalf of Royal Society of New Zealand, 2019-06-10)
    Livestock urine deposition onto grazed New Zealand pastures drives soil nitrous oxide (N₂O) emissions. Urine patch N₂O emissions can be reduced by inhibiting nitrification, a key urine patch nitrogen (N) transformation ...
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    Short-term grazing and urination behaviour of dairy cows differing in their genetic merit 

    Al-Marashdeh, Omar; Gregorini, Pablo; Maxwell, Thomas M. R.; Cheng, L.; Beltrán, I. E.; Hussein, Aimi Nabilah; Chen, Ao; Guinot, L.; Hodge, Simon; Cameron, Keith C.; Edwards, Grant (Taylor & Francis on behalf of the Royal Society of New Zealand, 2018-10-21)
    Breeding cows for improved production and production efficiency may have led to indirect selection for behavioural traits including grazing and urination behavioural patterns. This study investigated the relationship between ...
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    Influence of plant growth and root architecture of Italian ryegrass (Lolium multiflorum) and tall fescue (Festuca arundinacea) on N recovery during winter 

    Malcolm, Brendon J.; Moir, James L.; Cameron, Keith C.; Di, Hong J.; Edwards, Grant (John Wiley & Sons Ltd, 2015-12)
    © 2015 John Wiley & Sons Ltd. Nitrate (NO₃⁻) leaching is an environmental and health concern. In grazed pasture systems, NO₃⁻ leaching primarily occurs beneath animal urine patch areas due to high nitrogen (N) loading and ...
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    Cameron, Keith C. (30)
    Edwards, Grant (30)
    Di, Hong J. (24)Clough, Timothy J. (11)Carey, Peter (5)de Klein, C. A. M. (5)Gardiner, Camilla (5)Moir, James L. (5)Al-Marashdeh, Omar (4)Bryant, Racheal H. (4)... View MoreKeywordAgronomy & Agriculture (22)nitrate leaching (12)0702 Animal Production (7)plantain (5)050304 Soil Chemistry (excl. Carbon Sequestration Science) (4)070204 Animal Nutrition (4)0703 Crop and Pasture Production (4)079902 Fertilisers and Agrochemicals (incl. Application) (4)Italian ryegrass (4)kale (4)... View MoreDate Issued2021 (1)2020 (2)2019 (4)2018 (7)2017 (5)2016 (7)2015 (1)2014 (2)2013 (1)
    This service is maintained by Learning, Teaching and Library
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