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明前茶,贵如金?茶叶机械化推广助力茶业发展

2019-04-03 16:48:12 来源:中国农机网原创 作者:四夕 阅读量:46805 评论

导读:俗话说“明前茶,贵如金”,清明节前采制的茶叶受虫害侵扰较少,因而芽叶细嫩,同时,茶叶内氨基酸的含量相对后期的茶更高,而具有苦涩味的茶多酚相对较低,这时的茶叶口感香而味醇,是茶中佳品。但也由于清明前气温普遍较低导致发芽数量有限,生长速度较慢,能够达到采摘标准的产量很少,因此,明前茶才显得更加“物以稀为贵”。

  【中国农机网 编辑视角】俗话说“明前茶,贵如金”,清明节前采制的茶叶受虫害侵扰较少,因而芽叶细嫩,同时,茶叶内氨基酸的含量相对后期的茶更高,而具有苦涩味的茶多酚相对较低,这时的茶叶口感香而味醇,是茶中佳品。但也由于清明前气温普遍较低导致发芽数量有限,生长速度较慢,能够达到采摘标准的产量很少,因此,明前茶才显得更加“物以稀为贵”。
 
  其实,明前茶是我国长江流域江南茶区按节气对不同阶段春对茶的称呼,主要包括浙江、湖南、江西、安徽南部、江苏南部以及湖北南部等,明前茶主要的品类是绿茶及少量的红茶。可以说,茶叶的采摘时间与茶叶成品质量息息相关,因此也有“早采三天是个宝,迟采三天便是草”的说法。笔者身为农机行业的一员,提到茶,自然要说茶产业机械化。
 
  茶产业机械化发展现状
 
  传统的茶树采摘主要以人工采茶为主,可以尽量保持芽叶完整、新鲜、匀净,但是却费工费时费力,不仅采摘成本高,而且难以做到及时采摘。就当前我国茶产业发展状况来说,其实真正纯手工茶已经很少了,在制茶流程中,电力杀青机揉捻机的应用愈加广泛,半手工半机械制茶成为国内目前普遍的生产方式。
 
  目前国内茶叶机械一般主要是茶叶杀青机、揉捻机、理条机、烘干机、扁茶炒制机等单机产品,更加适用于小型茶叶加工厂和加工农户。这些茶叶机械在部分环节减轻了人工的耗费,更加注重“标准”与“效率”。
 
  但是对标茶产业的国家,我们不难发现国内的茶产业全自动化生产还较为薄弱。全自动化的茶叶生产方式,进一步将传统技艺和现代机械相结合。不仅仅是采茶机,整套茶叶加工设备还包括了茶叶的萎凋、杀青、揉捻、理条、分筛、烘焙、提香等茶叶加工单机,从鲜叶进厂开始,整个加工过程全部连续化、自动化生产。目前,我国也有一些大型茶企引用了全自动化生产线,但数量不多。
 
  茶叶机械化发展深受掣肘
 
  我国的茶园大多分布在丘陵山区,土壤中石块较多、田间无机械掉头区域、道路狭窄等问题普遍存在,茶园基础设施制约了机械化耕作,综合机械化作业水平甚至不足10%,生产效率低下。
 
  适用机械的缺乏则是制约茶叶机械化发展的主要原因,当前我国农业机械化发展快速,但是发展不平衡不充分的问题依然存在。主要粮食作物耕种管收综合机械化率已经超过了80%,但是棉油糖、果菜茶等经济作物的综合机械化水平依然较低。现有市场形似产品横行,新产品创新动力不足;与此同时,种植模式的多样性也为农机农机融合增添了难度,现有的茶叶机械尚无法满足茶农多样化、层次化需求;相关专业制造企业较少,难以形成配套能力高的产业集群,品牌效益和规模效益都比较薄弱。
 
  究其根本,很重要一个原因就是价格战和粗放式生产,导致茶叶科技含量不足,为追求经济利益,制造商和使用方势必会更加关心价格,压缩成本,这也进一步导致了茶机产品实用性不高。另一方面,茶农普遍老龄化,对于新知识和新技术的学习动力和能力均有所下降,不利于茶园全程机械化生产技术推广。而以小农户为主的茶叶生产组织方式也影响着机械的普及和应用,“人均一亩三分地”的现实也就意味着专门购买机具的话成本高、利用率低,茶农对于机械的需求自然也就有所下降。
 
  茶叶机械化推广助力茶产业发展
 
  茶叶全程机械化发展深受掣肘的很大一部分原因就是茶农们思想上的局限性,对此,多地展开相关茶叶机械化加工培训会,研究部署加快推进果菜茶生产机械化工作。相关工作人员结合当地茶叶生产现状,通过对茶叶栽培田间管理机械化技术的培训推广,促进农户对茶叶生产机械化的认识和了解,有的地区还现场演示了茶叶生产无人机植保、机械化除草、修剪、中耕施肥、机械化采摘作业,并结合作业过程,现场讲解了农机安全操作注意事项。
 
  据浙江省云和县农机站消息,得益于机械化生产意识的转变,以及利好政策的进一步推动,在春节后短短十天,云和县石塘镇茶农就共购置了茶叶加工机械300多台,是上年度全年购机的2倍以上。
 
  可以说,云和县茶产业的发展正是我国茶叶主产区的一个缩影。农业农村部对于推进果菜茶生产机械化方便的不断尝试,也意味着我国农业机械化生产在基本实现主要粮食作物机械化的背景下,继而向丘陵山区机械化发起攻势后,又开始向果菜茶机械化生产发力,对于茶产业机器换人具有重要意义。
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