施基肥对人工栽植格氏栲初期生长的影响

Effects of Application of Basal Fertilizer on Early Growth of Castanopsis Kawakamii Under Artificial Planting

通过施基肥对人工栽植格氏栲初期生长影响进行了分析研究,结果表明:施基肥对格氏栲生长具有极显著影响。施基肥(3种基肥)与不施基肥对比,格氏栲的平均地径、平均树高、冠幅及保存率均有极显著差异,其中以施有机肥处理的格氏栲生长最好,平均地径、平均树高、平均冠幅从高到低依次是A-1处理(施2.5 kg有机肥)>B-1处理(施0.25 kg复合肥)>C-1处理(施0.5 kg钙镁磷)>对照(不施肥)。在不同施肥量的对比中,有机肥以施2.5 kg的格氏栲生长最好,复合肥以施0.25 kg的格氏栲生长最好,钙镁磷以施0.5 kg的格氏栲生长最好,不同施肥量对保存率的影响差异不显著。

After studying the early growth effects of artificial planting of Castanopsis kawakamii through the application of basal fertilizers,the results show that the application of basal fertilizers had a highly significant impact on the growth of Castanopsis kawakamii.When comparing the effects of applying three different basal fertilizers with not applying any basal fertilizer,significant differences were observed in the average ground diameter,average tree height,canopy width,and survival rate of Castanopsis kawakamii.Among them,the Castanopsis kawakamii treated with organic fertilizer exhibited the best growth,with the order of preference in terms of average ground diameter,average tree height,and average canopy width being as follows:Treatment A-1(2.5kg organic fertilizer)>Treatment B-1(0.25kg compound fertilizer)>Treatment C-1(0.5kg calcium-magnesium-phosphate)>Control(no fertilizer).In the comparison of different fertilizer application rates,the best growth of Castanopsis kawakamii was observed when applying 2.5kg of organic fertilizer,0.25kg of compound fertilizer,and 0.5kg of calcium-magnesium-phosphate,respectively.There was no significant difference in the effect of different fertilization amounts on the survival rate.