Effect of 10 years of organic dairy farming on weed populations

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dc.contributor.authorHarrington, KCen_US
dc.contributor.authorOsborne, MAen_US
dc.contributor.authorKemp, PDen_US
dc.coverage.spatial18th Australasian Weeds Conferenceen_US
dc.date.available2012en_US
dc.date.issued2012en_US
dc.description.abstractTo determine whether converting to organic farming increases weed problems, a trial at Massey University in New Zealand split a dairy farm in half, with one half farmed conventionally for 10 years and the other half farmed using organic principles. Weed populations in selected paddocks of each farmlet were studied for 8 years to determine how these populations would differ between the two systems. After 10 years, weed problems differed little between the two farmlets. Both still had broad-leaved dock (Rumex obtusifolius L.) and hairy buttercup (Ranunculus sardous Crantz) as their main weed species. Weeds were most noticeable in pastures in the year following regrassing activities for either farmlet, but being unable to use glyphosate during seed-bed preparation or use selective herbicides after sowing of new swards, meant weeds were sometimes worse in organic pastures after resowing than in conventional pastures. These weed problems were dealt with over the first few years after resowing by good grazing management, and ensuring pastures were dense once the annual species hairy buttercup had flowered and died, thus minimising any further establishment. Re- sults from the trial suggest that weeds need not be an impediment to organic dairying.en_US
dc.description.confidentialfalseen_US
dc.description.notesThe full proceedings is available at: http://caws.org.au/awc_contents.php?yr=2012en_US
dc.format.extent159 - 162 (4)en_US
dc.identifierhttp://caws.org.au/awc/2012/awc201211591.pdfen_US
dc.identifier.citationProceedings of the 18th Australasian Weeds Conference, 2012, pp. 159 - 162 (4)en_US
dc.identifier.elements-id351690
dc.identifier.harvestedMassey_Dark
dc.identifier.isbn978-0-646-92454-0en_US
dc.relation.isPartOfProceedings of the 18th Australasian Weeds Conferenceen_US
dc.relation.urihttp://caws.org.au/awc/2012/awc201211591.pdfen_US
dc.titleEffect of 10 years of organic dairy farming on weed populationsen_US
dc.typeConference Paper
pubs.notesNot knownen_US
pubs.organisational-group/Massey University
pubs.organisational-group/Massey University/College of Sciences
pubs.organisational-group/Massey University/College of Sciences/PVC's Office - College of Sciences
pubs.organisational-group/Massey University/College of Sciences/School of Agriculture & Environment
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