论文部分内容阅读
潜山县现有茶园总面积3万面,其中60年代前后发展的茶园约占15％,这部分茶园由于当时建园基础差,栽培管理粗放,树势减退,单产水平低。而七十年代后期发展的部分茶园,树势也在衰退,使低产茶园面积比重扩大。据统计,全县2.5万亩成龄茶园中,亩产低于25公斤的茶园约达8000亩,占全县茶园总面积的1/3。在这些茶园中,多数树龄不算太大,骨架基本完好,但由于不修剪或修剪不当,采摘过度致使树势衰退,有的树冠形成“两层楼”,叶层薄,叶面积指数低,鸡爪枝也大量出现,茶叶单产明显下降。根据目前
The total area of existing tea plantations in Qianshan County is 30,000, of which about 15% are tea farms developed around the 1960s. Due to the poor foundation of the park and the extensive cultivation and management, the plantation decreased and the yield was low. The development of the late seventies part of the tea plantations, tree potential is also declining, so that the proportion of low-yield expansion of tea garden. According to statistics, 25,000 mu of mature tea plantations in the county have a tea plantation area of less than 25 kg per mu, accounting for about 8,000 mu, accounting for one third of the total tea plantation area in the county. In these tea gardens, most of the trees are not too large, the skeleton is basically intact, but due to improper pruning or pruning, excessive picking causes the decline of the tree, and some canopy forms “two floors” with thin leaf layers and low leaf area index. Chicken legs also appear in large numbers, tea yield decreased significantly. According to the present