Title: Study on the Application Effects of the Special Fertilizer Expanded Sludge for Poplar Tree on Triploid Chinese White Poplar,Melia azedarach L.and Catalpa bungei
Abstract: [Objective] The aim of the research was to discuss the application effect of urban sludge on greening seedlings.[Method] The special fertilizer for poplar was produced by using expanded sludge as carrier.Its application effects on triploid Chinese white poplar,Melia azedarach L.and Catalpa bungei were studied.[Result] The average increasing value of breast diameter,tree height and wood volume of M.azedarach treated by the special fertilizer for poplar were 2.37 cm,1.320 m and 0.031 8 m3 resp.,increasing by 21.54%,28.16% and 35.32% than that of no fertilizer application.The average seedling height and ground diameter of triploid Chinese white poplar treated by the special fertilizer for poplar were 291.20 and 2.56 cm resp.,increasing by 11.36% and 10.34% resp.than that of applying urea.The tree height and ground diameter of C.bungei treated by the special fertilizer for poplar were greatest,increasing by 43.75% and 17.07% resp.than that of no fertilizer application.The organic matter content of soil in the experimental field was increased 2.8 g/kg than that before the experiment.The water stable granular with the size of more than 0.25-1,1-5,5 mm were increased by 29.1%,33.2% and 23.7% than that of no fertilizer application resp.[Conclusion] The special fertilizer for poplar could be taken as the topdressing fertilizer of greening seelings and it should be promptly popularized.
Publication Year: 2008
Publication Date: 2008-01-01
Language: en
Type: article
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Cited By Count: 1
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