Fertilization and Irrigation Considerations for Container-grown Nursery Crop Production

dc.contributor.advisorZheng, Youbin
dc.contributor.advisorDixon, Mike
dc.contributor.authorBowser, Débora
dc.date.accessioned2017-05-03T18:53:16Z
dc.date.available2017-05-03T18:53:16Z
dc.date.copyright2017-04
dc.date.created2017-04-27
dc.date.issued2017-05-03
dc.degree.departmentSchool of Environmental Sciencesen_US
dc.degree.grantorUniversity of Guelphen_US
dc.degree.nameMaster of Scienceen_US
dc.degree.programmeEnvironmental Sciencesen_US
dc.description.abstractControlled-release fertilizer (CRF) is currently used in containerized nursery production to improve nutrient use efficiency and reduce run-offs. However, specific strategies involving the improvement of nutrient management for environmental and economic reasons are still needed. The objectives of this study were: 1) to determine the optimal CRF top-dress rates to reduce production time of two flowering shrubs; 2) to investigate the influence of irrigation regimes, based on substrate water volumetric capacity, on plant growth and nutrient leaching; 3) to determine the rate of release from incorporated CRF placed in storage. Results of this study show that a top-dressing application range of 10.0 to 15.0 g N/pot for both Hibiscus and Hydrangea can improve plant quality and flowering time. Spirea shrubs irrigated at 0.35 m3・m-3 had best overall growth and reduced N leaching while Hydrangeas performed best under rate 0.75 kg N・m-3. Stored CRF-incorporated substrate for 10 days did not reach concerning levels for moderate to high salt tolerant plants; however N release began 24 hours after incorporation. Consumer potting mix stored for six months did not exceed 1.0 mS・cm-1.en_US
dc.description.sponsorshipAgriculture and Agri-Food Canada
dc.description.sponsorshipCanadian Ornamental Horticulture Alliance
dc.description.sponsorshipLandscape Ontario
dc.identifier.urihttp://hdl.handle.net/10214/10347
dc.language.isoenen_US
dc.publisherUniversity of Guelphen_US
dc.rights.licenseAll items in the Atrium are protected by copyright with all rights reserved unless otherwise indicated.
dc.subjectTop-dressingen_US
dc.subjectVolumetric water contenten_US
dc.subjectControlled-release fertilizeren_US
dc.subjectStorageen_US
dc.subjectOptimal CRF ratesen_US
dc.subjectFlowering shrubsen_US
dc.subjectHydrangea paniculata ‘Limelight’en_US
dc.subjectHibiscus syriacus ‘Sugar tip’en_US
dc.subjectHydrangea macrophylla ‘Bigleaf’en_US
dc.subjectSpirea bumalda ‘Goldmound’en_US
dc.titleFertilization and Irrigation Considerations for Container-grown Nursery Crop Productionen_US
dc.typeThesisen_US

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