毛竹增产剂配方筛选及竹腔施肥效果分析

通过对毛竹林连续5a的竹腔施肥试验，分析毛竹增产剂配方中各试验因素和水平之间对毛竹新竹数、新竹平均胸径、出笋数及成竹率的影响，并对竹林竹腔施肥前、后总体效果进行比较。结果表明试验期年均水平与试验前水平相比，新竹量、新竹平均胸径、年均出笋数、成竹率分别提高了62．8％、16．9％、69．0％和17．9％。试验区与对照区相比，新竹量、新竹平均胸径、笋产量、成竹率分别提高了75．0％、15．2％、79．7％、35，2％，年均增加收益115．9％。

Formulation Selection and Effects of Agents for Increasing Production of Phyllostcehys pubescens

After a 5-year experiment of cavity-injecting fertilization on Phyllostcehys pubescens,the influence on new bamboo numbers,average D.B.H,bamboo shoot numbers and growing-bamboo rate between the factors and levels in the different treatments has been analyzed.The results showed that after fertilization,the new bamboo numbers,average D.H.B,bamboo shoot numbers and growing-bamboo rate has increased by 62.8%,16.9%,69.0% and 17.9% respectively,and the differences between experimental area and check of these index above were 75.0%,15.2%,79.7%,35.2% respectively,the average increment of economic benefit was 115.9% per year.