竹炭有机肥对不同年龄毛竹株数和胸径的影响

Impact of the Bamboo Charcoal Organic Manure on the Plant Numbers and DBH of Moso Bamboo at Different Ages

选择具有代表性的毛竹林分,采用正交试验法研究不同配比的竹炭有机肥对不同年龄毛竹株数和胸径的影响。结果表明,不同施肥处理下新竹株数较其他年龄毛竹的株数均有所增加,不同施肥处理间无显著性差异(p<0.05)。不同年龄间仅A1、A2、A3处理中新竹株数与其他年龄毛竹之间存在显著性差异(p<0.05)。所有施肥处理条件下,平均胸径在不同年龄毛竹之间无显著性差异(p<0.05)。无论是新竹还是Ⅰ度、Ⅱ度、Ⅲ度竹,不同施肥处理对毛竹胸径大小无显著影响。

The representative stands of Moso bamboo were selected to study the effects of different proportions of bamboo charcoal organic manure on the number of bamboo and diameter at breast height(DBH)at different ages by orthogonal test.The results showed that under different fertilization treatments,the number of new bamboo increased compared with those of other ages.There was no significant difference between different fertilization treatments(p<0.05).There was no significant difference(p<0.05)between the number of new bamboo and the other ages except treated by A1,A2and A3.The average DBH at different ages had no significant difference(p<0.05)under all fertilization treatments.Regardless of new bamboo or2-year-raw bamboo,4-year-raw bamboo,6-year-raw bamboo,different fertilization treatments had no significant effect on DBH.