金花茶不同种植密度经济效益分析

试验设种植株行距0.7 m×0.7 m、0.7 m×1.0 m、0.7 m×2.0 m、1.0 m×2.0 m、1.5 m×2.0 m、2.0×2.0 m、2.5 m×2.0 m的7个不同处理方法。结果表明:株行距1.5 m×2.0 m、2.0 m×2.0 m、2.5 m×2.0 m³个处理的平均树高分别为2.24、2.33、2.36 m,平均冠径分别为1.76、1.95、1.99 m,显著高于株行距0.7 m×0.7 m、0.7 m×1.0 m的2个处理,而这2个处理在6 a内间移2次苗木出售收入、产花收入的产值分别达81.77、82.57万元·hm^-2,早期效益显著;从产花量看,株行距1.0 m×2.0 m的处理,第6年年产值可达33.11万元·hm^-2,随着树龄增大,产花量将逐年增加,效益不断提高。因此,金花茶栽培要达到早期高产高效,宜采用株行距0.7 m×0.7 m或0.7 m×1.0 m的密度定植;从长期长效收入分析,定植的株行距适宜采用1.0 m×2.0 m。

Analysis on Economic Benefit of Different Planting Density of Camellia nitidissima

In the experiment,the plant row spacing was 0.7 m×0.7 m,0.7 m×1.0 m,0.7 m×2.0 m,1.0 m×2.0 m,1.5 m×2.0 m,2.0 m×2.0 m,2.5 m×2.0 m.The results showed that the average tree height growth of 1.5 m×2.0 m,2.0 m×2.0 m and 2.5 m×2.0 m were 2.24,2.33 and 2.36 m respectively,the average crown diameter growth was 1.76,1.95 and 1.99 m,respectively,and its growth was significantly higher than that of plant-row spacing 0.7 m×0.7 m,0.7 m×1.0 m,but the growth amount of the two treatments was 817700 yuan·hm^-2and 825700 yuan·hm^-2respectively within six years,the early benefits are significant.From the perspective of flower yield,the annual output value in the 6th year could reach 331100 yuan·hm^-2when the distance between plant and row was 1.0 m×2.0 m.With the increase of tree age,the flower yield would increase year by year,and the benefit would be improved.In order to achieve high yield and high efficiency in the early stage,the planting density of 0.7 m×0.7 m or 0.7 m×1.0 m should be adopted,the plant spacing was suitable for planting with 1.0 m×2.0 m treatment density.