Objective

2

To explore the effect of different proportions of organic fertilizer and chemical fertilizer on the agronomic traits， yield and quality of Artemisiae Argyi Folium in Qichun county， and provide a theoretical basis for scientific fertilization of its planting.

Method

2

Field plot experiment was carried out to set up 5 treatment methods with different proportions of organic fertilizers and chemical fertilizers［OM

0

（no combined application of biological organic fertilizer）， OM

17

（combined application of 17% biological organic fertilizer）， OM

33

（combined application of 33% biological organic fertilizer）， OM

67

（combined application of 67% biological organic fertilizer）， OM

100

（combined application of 100% biological organic fertilizer）］. The effects of different treatment methods on the agronomic characters， leaf yield， output rate of moxa， volatile oil content， flavonoid and phenolic acid contents and mineral element contents of Artemisiae Argyi Folium in Qichun county were determined.

Result

2

With the increase of the proportion of organic fertilizer in application， the seedling number per unit area， plant height， stem diameter， leaf number， leaf width， leaf length， height of dead leaves and leaf yield of Artemisiae Argyi Folium were increased at first and then decreased. Among them， the yield of Artemisiae Argyi Folium in OM

33

treatment was 61.37% higher than that in OM

0

treatment. With the increase of the proportion of organic fertilizer， the output rate of moxa of Artemisiae Argyi Folium showed continuously increasing trend， contents of volatile oil and volatile components （eucalyptol，

α

-thujone， borneol， camphor and caryophyllene oxide） increased at first and then decreased， while the contents of

α

-caryophyllene and

β

-syringene decreased gradually， the contents of phenolic acids （neochlorogenic acid， chlorogenic acid， isochlorogenic acid B， A and C） increased at first and then decreased， while the contents of flavonoids （jaceosidin and eupatilin） increased continuously， and the contents of mineral elements （Ca， Cu and Zn） continued to increase， but the content of K decreased significantly at the high proportion of organic fertilizer. After treated with principal component analysis （PCA）， it was found that OM

17

treatment had the highest quality， while OM

100

and OM

0

treatment had low quality.

Conclusion

2

Based on comprehensive analysis of agronomic traits， yield and quality indexes of Artemisiae Argyi Folium in Qichun county， it is suggested that 17%-33% proportion of organic fertilizer should be used in its production， in order to improve the quality and efficiency of Artemisiae Argyi Folium industry in Qichun county.