Effect of organic fertilizer on the reuse of elevated strawberry substrate
In order to promote the high-quality development of strawberry substrate cultivation,different proportions of organic fertilizer were applied to the substrate used for 2 years,in order to provide a theoretical basis for substrate reuse and increase strawberry quality.The results showed that the plant height,leaf width and leaf length were higher in T6％treatment,and the plant crown diameter was higher in T3％treatment.The application of organic fertilizer significantly increased the SPAD value of leaves,and the SPAD value and net photosynthetic rate(Pn)were higher in T6％treatment.The contents of soluble solids and soluble sugar in fruits were increased by T9％treatment,the content of titratable acid was higher by CK treatment,and the ratio of sugar to acid and vitamin C content were higher by T6％treatment.The 667 m2 yield was higher in T6％treatment,which was significantly higher than other treatments.Therefore,the combined application of organic fertilizer can improve the reuse effect of elevated strawberry cultivation substrate,and it is advisable to add 6％organic fertilizer per 1 m3 substrate.
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