Staff Publications

Staff Publications

  • external user (warningwarning)
  • Log in as
  • language uk
  • About

    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

    Records 21 - 25 / 25

    • help
    • print

      Print search results

    • export

      Export search results

    Check title to add to marked list
    Technical and institutional issues in participatory plant breeding: done from the perspective of farmer plant breeding
    McGuire, S. ; Manicad, G. ; Sperling, L.J. - \ 1999
    Unknown Publisher - 100 p.
    Soluble organic carbon and carbon dioxide fluxes in maize fields receiving spring-applied manure
    Gregorich, E.G. ; Rochette, P. ; McGuire, S. ; Liang, B.C. ; Lessard, R. - \ 1998
    Journal of Environmental Quality 27 (1998)1. - ISSN 0047-2425 - p. 209 - 214.
    More than 19 million Mg of dairy manure are produced annually in the Canadian provinces of Quebec and Ontario, and most of it is spread on agricultural fields. Quantitative information on the impact of manure management practices on levels of soluble organic carbon (SOC) and emissions of CO 2 is important for assessing whether this management significantly contributes to increasing atmospheric CO 2 concentrations. The objective of this study was to measure the effects of dairy cattle manure (applied at 0, 56, and 112 Mg ha -1) on SOC levels in, and soil surface CO 2 fluxes from, a typical maize (Zea mays L.) field in central Canada, from April to October. The higher rate of manure increased both the CO 2 emissions and the SOC levels by a factor of two to three compared with the control. Fluxes of CO 2 were very low immediately after thaw, increased sharply following manure application and increased again in mid-June at the time when temperature and sort moisture increased; thereafter, fluxes declined throughout the rest of the season. Over the season, which was drier than normal, SOC was not a good predictor of CO 2 flux. Carbon dioxide flux increased proportionately less for the second 56 Mg ha -1 increment of manure added than for the first increment. Factors other than the quantity of SOC limited soil respiration at the highest manure application rate. Carbon dioxide is contributed to the atmosphere at a lower rate, and proportionately more manure C is retained in soil with increasing levels of manure applied.
    Seeds and survival: plant genetic resource management in conflict and post-war recovery.
    Richards, P. ; Ruivenkamp, G. ; Drift, R. van de; Mulbah Gonowolo, ; Jusu, M.S. ; Langley, C. ; McGuire, S.J. - \ 1997
    Rome : IPGRI [etc.] - ISBN 9789290433491 - 61
    genetische bronnen van plantensoorten - oorlog - conflict - in-situ conservering - west-afrika - plant genetic resources - war - conflict - in situ conservation - west africa
    Seeds, intellectual property, and food security.
    McGuire, S.J. - \ 1997
    Seedlinks (1997)Spring.
    Privatisation: its effects on British wheat breeding.
    McGuire, S.J. - \ 1997
    Biotechnology and Development Monitor (1997)32. - ISSN 0924-9877
    Check title to add to marked list
    << previous | next >>

    Show 20 50 100 records per page

     
    Please log in to use this service. Login as Wageningen University & Research user or guest user in upper right hand corner of this page.