Effects of Different Fertilization Methods on the Mixed Forest of Cunninghamia Lanceolata(Lamb.)Hook and Schima Superba Gardn.et Champ
In order to explore the effects of different fertilization methods on mixed afforestation,this study used Dashannao State-Owned Forest Farm in Nankang District,Ganzhou City,Jiangxi Province as an experimental site for mixed forests of Cunninghamia lanceolata(Lamb.)Hook and Schima superba Gardn.et Champ.Gradient ferti-lization experiments were conducted,with compound fertilizer gradients of 100,200,300 g/plant and no fertiliza-tion control(CK)set.The results showed that all gradient fertilization methods significantly promoted the growth of the total height and ground diameter of Cunninghamia lanceolata(Lamb.)Hook and Schima superba Gardn.et Champ.After 8 months of afforestation,the highest total height and ground diameter of Cunninghamia lanceolata(Lamb.)Hook under the 100 g/plant fertilization method were 47.1 cm and 9.1 mm,respectively,with a relative in-crease of 33.4％and 18.2％compared to the control(CK);The maximum total height of the 200 g/plant fertiliza-tion method is 99.6 cm.and the maximum ground diameter is 13.1 mm,with a relative increase of 28.8％and 21.3％compared to the control(CK),respectively.Considering the cultivation cost,the optimal fertilization rate is 100 g/plant.
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