绿竹笋用林丰产技术研究

本文以绿竹笋用林为对象，通过建立河流淤积土、沙壤、黄壤堆积土三个样地，对竹林进行调查、施肥、培育试验，以研究其在不同生长条件下的丰产措施与丰产结构，从而指导竹农生产．试验结果表明，绿竹笋用林合理竹林结构以代数为1.3～1.6为佳，在不同密度的竹林中，合理丛立竹度与密度呈动态平衡关系；合理化肥配置方案为N：P：K以2：1:1～3：1：1之间最好，复合肥年施肥量为2～3kg／丛，在出笋前及出笋期间分多次施用；抚育管理以培土、留笋及排灌技术为重点．

Study on Bumper-yield Technique for Bamboo Shoots Stand of Dendrocalamopsis oldhami

In order to study the bumper-yield measures and structure of bumper-yield stand for Dendrocalamopsis oldhami under different sites, three plots were sut up on river's sludge, sand soiil and accumulation loess to carry out fertilization and cultivation experiments. The experimental results showed that: the genera:ion number of rational structure is 1. 3~ 1. 6. The proper culm number per clump showed a dynamic equilibrium to density in various stands with different densiti The reasonable fertilization is the proportion of N: P: K=2: 1: 1 or 3: 1: 1 for applied chemical fertilers. The annual applied compound fertilizer amount is 2~3kg per clump and applied by several times before and during shooting. Earthing, reversing shoots, and irrigation and drainage all are the key manage ment techniques