Effects of Different Fertilizer Types on Growth of Changlin Clones in Camellia oleifera in Chongqing
[Objective]In order to obtain the best fertilizer formula for the growth of Camellia oleifera,a 3-year fertilization experiment was carried out on three kinds of Changlin clones in Camellia oleifera,and the optimal fertilization ratio suitable for the growth of Camellia oleifera was selected,which laid the foundation for improving the economic benefits of Camellia oleifera.[Method]Four treatments were set up in this experiment,that is,compound fertilizer(C0.5,0.50 kg/plant),compound fertilizer + organic fertilizer(C0.25 O0.5,compound fertilizer 0.25 kg/plant,organic fertilizer 0.50 kg/plant),organic fertilizer(O1,1.00 kg/plant)and the control(CK).Tree height,basic diameter and crown diameter of young Camellia oleifera were measured to compare and analyze the differences between fertilizer types and varieties.[Result]The results showed that fertilization promoted the height growth of Camellia oleifera,but the effect was not significant(P>0.05),among four types of treatments,the compound fertilizer + special organic fertilizer had the best effect for Camellia oleifera,compared with CK,the two-year growth amount of Changlin 3,Changlin 4 and Changlin 40 was 38.46%,10.77%and 22.22%higher,respectively.Fertilization significantly affected the growth of ground diameter and crown width of Camellia oleifera(P<0.05),and the compound fertilizer + special or-ganic fertilizer for Camellia oleifera treatment group had the largest growth amount,compared with CK,the growth amount of ground diameter was 125.33%,47.76%and 12.87%higher,respectively,and the growth amount of crown width was 30.30%,13.00%and 46.75%high-er,respectively.[Conclusion]The results of this study showed that the combination of compound fertilizer and organic fertilizer for Camellia oleifera had positive effects on improving the quality and efficiency of Changlin clones in Camellia oleifera.
Fertilizer typesChanglin clones in Camellia oleiferaTree heightBasic diameterCrown diameterIncrement
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