Fertilizer Technology Research Of Phoebe Bournei,Ph. Chekiangensis And Cinnamomum Chekiangense Container Seedlings

Phoebe bournei, Ph. chekiangensis and Cinnamomum chekiangense are evergreen and broadleaf arbor of Lauraceous.Three species as test materials were used to get system research of container seedlings of fertilization and cultivation. Three species were planted with 20cm x 19cm across the black thick qualitative non-woven Meizhi bags and appropriate matrix in greenhouse. Urea (including N46.5 %), calcium magnesium phosphate fertilizer (including P2O512 %) and potassium chloride (including K2O60 %) were mixed.Adopt N, P, K fertilizer nutrients in composite mix of L9 (33), through three level 3 factors of nine processing, by orthogonal test was compared to no fertilizer to make the best fertilizer rates screening. Fertilization was combined with drip irrigation water on 2010 April 5, May 5, September 5, October 5. By comparison of plant height, diameter at foot, root length, the ratio of height to diameter,shoot root ratio, fresh weight of shoot, fresh weight of root, dry weight of shoot, dry weight of root, root-top ratio, root activity, soluble sugar contents, the contents of soluble protein, Chlorophyll content and other indexes, found the suitable concerntration of foliar fertilizer, and provided the technology support for nursery containers of three species. Results showed that:Phoebe bournei was urea 5.32 g·strains^-1, calcium magnesium phosphate fertilizer 13.32 g·strains^-1, potassium chloride 3. 56 g·strains^-1; different fertilization processes make no difference to its seedling height but a remarkable difference to its stem diameter; that among the influences of the three fertilizers, phosphate plays a major role, next comes nitrogenous and then potassium.Ph. chekiangensis was urea for 10.68 g·strains^-1, calcium magnesium phosphate fertilizer 26.68 g·strains^-1, potassium chloride 0 g·strains^-1; different fertilization processes make no difference to its seedling height but a remarkable difference to its stem diameter; that among the influences of the three fertilizers, nitrogenous plays a major role, next comes potassium and then phosphate.Cinnamomum chekiangense was urea 5.32 g·strains^-1, calcium magnesium phosphate fertilizer 13.32 g·strains^-1, potassium chloride 3.56 g·strains^-1; different fertilization processes make no difference to its seedling height but a remarkable difference to its stem diameter; that among the influences of the three fertilizers, potassium plays a major role, next comes nitrogenous and then phosphate.