【摘要】 为在交趾黄檀幼龄林造林和抚育中合理高效使用复合肥,选用基肥施用量、追肥施用量、追肥方式3个因素进行正交试验,对其树高、地径、保存率进行测定并综合分析。结果表明:不同处理的树高、地径、保存率存在显著性差异(P<0.05);各因素对树高、地径、保存率的影响主次水平均为基肥施用量>施肥方式>追肥施用量;最优处理组合是基肥施用量750g、追肥施用量400g或600g、施肥方式为沟施或环施。更多还原

【Abstract】 In order to make rational and efficient use of compound fertilizer in afforestation and tending of young Dalbergia cochinchinensis forest,orthogonal experiment was carried out with three factors of base fertilizer amount,topdressing amount and topdressing method to determine and comprehensively analyze the tree height,ground diameter and preservation rate. The results showed that there were significant differences in tree height,ground diameter and preservation rate among different treatments(P<0.05). The primary and secondary levels of the effects of various factors on tree height,ground diameter and preservation rate were Amount of base fertilizer > Topdressing method > Amount of topdressing. The optimal treatment combination was 750 g basal fertilizer,400 g or 600 g topdressing fertilizer,and furrow or ring fertilization.更多还原