Effect Of Euonymus Alatus (Thunb.) Sieb Growth Characteristics In Different Amount Of Nitrogen

In order to study effect of Euonymus alatus (Thunb.) Sieb growth and physiologicalcharacteristics changes in different nitrogen levels, test set5treatment that every plantnitrogen（NH4NO3）amount was N1(control):0g; N2：10g; N3：20g; N4：30g; N5：40g，plot experimental design with three replications, optional two-year-old euonymus and plantingdensity as30×30cm, test studied Euonymus alatus (Thunb.) Sieb growth, leaf pigmentcontent, photosynthesis, protective enzymes, soluble protein, conductivity, water contentchanges in fertilize, the results showed that:1. Euonymus alatus (Thunb.) Sieb height N4treatment in Maximum values andhigher than N1,N2,N3,N4treatment26.40cm、21.36cm、16.27cm、9.42cm, June toSeptember N4treatment significantly higher than the control;2.N4treatment chlorophyll a content in May to September higher than control26.18%、60.67%、42.45%、42.98%、44.56%,June to September significantly higher than thecontrol; compared with the control chlorophyll b content were increased76.06%、60.67%、78.04%、42.98%、44.56%and significantly higher than the control in May to August; N4treatment total chlorophyll content were higher than the control44.12%、60.67%、55.88%、42.98%、44.56%and throughout the test period were significantly higher than the control.3. N4treatment compared with the control that net photosynthetic rate were increasedby12.70%、82.05%、68.63%、58.78%、149.70%in May to September and significantly higherthan the control in June to September; compared with the control transpiration rate wereincreased38.18%、135.31%、105.36%、45.99%、68.53%and significantly higher than thecontrol in June to September; compared with the control stomatal conductance wereincreased13.77%、103.88%、29.65%、43.81%、20.71%and significantly higher than the controlduring the whole experiment; intercellular CO2concentration were decreased20.56%、30.90%、36.73%、23.76%、22.32%and have significant differences between the control in June toSeptember;4. N4treatment SOD activity from May to September were higher than the control70.81%、113.42%、43.12%、44.34%、13.67%and May to August with significant difference between control; June to September POD activity were higher than the control15.61%、52.75%、12.61%、38.24%and significant differences between the control in July and September, PPOactivity from May to September were higher than the control25.81%、44.68%、92.36%、84.67%、46.53%and June to September was significantly higher than the control;5. Fertilization can promote Euonymus soluble protein content increased and N4treatmentwas the highest value and May to September were higher than the control23.81%,92.45%,107.46%,70.37%,83.33%and significantly different from June to September; All fertilizationtreatments will affect Euonymus conductivity, except in June outside, N4conductivity werelower than the control treatment.