Effects of Different Foliar Fertilizers on the Growth and Leaf Quality of Cyclocarya paliurus
[Objective]To study the effects of different types of leaf fertilizer on the growth and leaf quality of Cyclocarya paliurus seedlings in ecologically fragile areas,and to provide theoretical basis for the fertilization of Cyclocarya paliurus seedlings,in order to optimize the oriented cultivation and management mode of Cyclocarya paliurus plantation.[Method]The seedling growth index,leaf photosynthesis and quality index of 2-year-old Cyclocarya paliurus sinensis were measured by using microbial fertilizer(T1),potassium dihydrogen phosphate(T2),water-soluble amino acid fertilizer(T3)and water control under field test conditions.The effects of three kinds of leaf fertilizer on the growth,photosynthetic characteristics and quality of Cyclocarya paliurus seedlings were analyzed by membership function analysis.[Result]Compared with the control group,the addition of three kinds of foliar fertilizer promoted the growth of Cyclocarya paliurus.The tree height,ground diameter and dry weight of compound leaves were increased,and the compound leaf area,total chlorophyll content,total flavonoids and total triterpene contents were significantly increased(P＜0.05).Correlation analysis results showed that there were positive correlations among all indexes,among which tree height was positively correlated with chlorophyll a content(P＜0.01),leaf dry weight was positively correlated with chlorophyll b content and total triterpene content,chlorophyll a content was positively correlated with total triterpene content,and chlorophyll a content was positively correlated with total triterpene content.The results of membership function comprehensive evaluation showed that the growth promotion effect of the three leaf fertilizer treatments was ranked as T3、T2、T1.[Conclusion]Spraying amino acid water-soluble fertilizer on the leaf surface is the most beneficial to the growth of Cyclocarya paliurus seedlings in ecologically fragile areas.
Cyclocarya paliurusfoliar fertilizergrowth indexmembership function analysis
万方数据
维普
