?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Organic+tree+propagation+under+Welsh+nursery+conditions&rft.creator=Frost%2C+David&rft.creator=Clarke%2C+Aldwyn&rft.subject=+Breeding%2C+genetics+and+propagation&rft.subject=Ornamentals%2C+flower+bulbs+and+tree+nurseries&rft.subject=+Composting+and+manuring&rft.description=The+demand+for+organically+raised+tree+and+hedging+plants+had+been+reported+from+organic+farmers+in+Tir+Gofal%2C+as+well+as+within+the+landscaping+industry.+Although+there+are+a+number+of+plant+raising+nurseries+producing+organically+raised+plants+for+vegetable+and+fruit+production%2C+there+are+no+tree+nurseries+producing+to+organic+standards.+Nursery+tree+growers+were+concerned+that+there+was+currently+too+little+known+about+the+performance+of+tree+seedlings+in+organic+substrates+(e.g.+in+root-trainers)%2C+nor+about+the+nutrient+supply+to+seedlings+under+organic+regimes%2C+nor+about+diseases+control+(especially+fungal+diseases+such+as+mildew).%0D%0ATherefore%2C+the+development+of+three+hedging+species%3B+Hawthorn%2C+Hazel%2C+Blackthorn%2C+were+tested+for+two+growing+systems+in+five+different+composts+types%3B+Ystwyth+nursery+mix%2C+Peat+based%2C+Peat+free+based%2C+Wood+chip+based%2C+Organically+certified+green+waste+based.++The+results+of+these+trials+are+reported+here.&rft.date=2007-06&rft.type=Report&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Forgprints.org%2F11077%2F1%2Forganictreepropagation.pdf&rft.identifier=Frost%2C+David+and+Clarke%2C+Aldwyn+(2007)+Organic+tree+propagation+under+Welsh+nursery+conditions.&rft.relation=http%3A%2F%2Forgprints.org%2F11077%2F