Effects of vermicompost on peat-based seedling substrates and cucumber seedling
To explore the application of vermicompost in optimizing traditional peat-based vegetable seedling substrates,this experiment added 0(CK),10％,20％,30％,40％,and 50％vermicompost to traditional peat-based seedling sub-strates,measuring the properties of the improved substrates,and the morphological and physiological indices of cucumber seedling.The results showed that as the amount of vermicompost increased,the bulk density and EC of the seedling sub-strate gradually increased,while the number of bacteria,fungi,and the activities of neutral phosphatase(S-NP)and alka-line phosphatase(S-ALP)showed a trend of first increasing and then decreasing.When compared with CK,the addition of vermicompost significantly increased the S-NP and S-ALP activities in the cucumber seedling substrate,with the T4 treatment showing the best performance,increasing by 52.72％and 43.16％,respectively.For cucumber seedlings,T4 treatment(with 40％vermicompost added)showed the best performance,with significantly higher aboveground plant height,stem thickness,leaf area,biomass,underground seedling root system vitality,root lenght,and root surface area than CK.In summary,adding vermicompost can improve the properties of the seedling substrate,thereby enhancing the morphological indices of both the aboveground and underground parts of the seedling,and achieving the goal of cultivat-ing robust cucumber seedling.The recommended vermicompost addition is 40％.
万方数据
维普
