NDLI: Untersuchungen zur Eliminierung von Phytophthora spp. aus Recyclingwasser in Baumschulen mit Hilfe von Filtrationsverfahren

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Untersuchungen zur Eliminierung von Phytophthora spp. aus Recyclingwasser in Baumschulen mit Hilfe von Filtrationsverfahren

Content Provider	Semantic Scholar
Author	Ufer, Thorsten Posner, Martin Wessels, H. Werres, Sabine
Copyright Year	2014
Abstract	In einem vierjahrigen Projekt wurden Langsamsandfilter (LSF) in drei verschiedenen Bauweisen, ein Filtrationssystem mit Lavagranulat (LGF) (Shieer Bio-Filter®) sowie eine Wurzelraumfiltration (WRF) in Baumschulen getestet. Die LSF und die LFG lieferten ausreichende Mengen Wasser fur die Geholzproduktion auf den eingeplanten Containerkulturflachen. In der WRF reichte die Menge gefiltertes Wasser aus, um wie geplant, 50 % des Gieswasserbedarfs zu decken. Die maximale jahrliche Wassermenge, die fur die Bewasserung filtriert werden musste, lag zwischen 5800 m 3 /* Style Definitions / table.MsoNormalTable {mso-style-name:"Normale Tabelle"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin;} und 163 000 m 3 / Style Definitions / table.MsoNormalTable {mso-style-name:"Normale Tabelle"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin;} . Die Gesamtkosten fur 1m 3 / Style Definitions */ table.MsoNormalTable {mso-style-name:"Normale Tabelle"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin;} Filtrat waren fur den LSF 1 am niedrigsten und fur den Wurzelraumfilter am hochsten. Regelmasige Beprobungen im Mai, August and Oktober uber vier Jahre zeigten, dass die Langsamsand- und der Lavagranulatfilter bei einem ordnungsgemasen Betrieb Phytophthora spp. vollstandig aus dem Recyclingwasser eliminierten. Das gefilterte Wasser blieb in den Reinwasserbecken frei von Phytophthora spp. wenn sie mit Folie ausgekleidet und mit einem Dach versehen waren oder das Wasser in einem geschlossenen Tank gespeichert wurde. Uber die Filterwirkung des Wurzelraumfilters ist auf der Basis der vorhandenen Daten noch keine abschliesende Beurteilung moglich. Stichworter: Phytophthora , Recyclingwasser, Filtrationssysteme, Baumschule Studies on Phytophthora spp. Elimination from recycling water in nurseries with filtration systems In a four year project three filtration systems were tested in commercial nurseries: three Slow Sand (SSF), one Lava Grain (LGF) (Shieer Bio-Filter®) and one Constructed Wetland (CWF) Filtration system. The filtration systems produced sufficient quantities of water for nursery production. The maximum annual quantity of water demanded by the participating nurseries ranged from 5800 m 3 up to 163000 m 3 . The total costs for 1m 3 filtrated water were lowest for the SSF 1 and highest for the WRF. Regular sampling in May, August and October over a four year period demonstrated complete elimination of Phytophthora spp. with the three SSF and the LGF. The filtrates remained free of Phytophthora spp. if the clean water reservoirs were protected against contamination via soil and air. The CWF requires continuing analysis for a final judgement. (Information on the SSF and the LGF in English language: UFER et al., 2008) Keywords: Phytophthora , recycling water, filtration systems, commercial ornamental nurseries
Starting Page	45
Ending Page	61
Page Count	17
File Format	PDF HTM / HTML
Volume Number	60
Alternate Webpage(s)	https://ojs.openagrar.de/index.php/NachrichtenblattDPD/article/download/3204/3333
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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