‘福鼎大白茶’ 1芽 2叶茶青机采适期研究

为提高茶青机械采摘质量,以1芽2叶及同等嫩度对夹叶为采摘标准,在3块不同地点的‘福鼎大白茶’茶园,应用单人采茶机进行田间试验。结果为标准芽叶(1芽2叶及同等嫩度对夹叶)所占比例在80.0%、70.0%、60.0%时机采,茶青的标准芽叶比例分别为47.4%、25.7%、29.4%,可见标准芽叶所占比例达80.0%时为机采适期。贵州黔北茶区春茶机采标准芽叶的间隔期约12天;夏季第1与2、2与3、3与4次机采间隔期分别为13、21、15天;秋季机采间隔期为17天。春季第1次机采适期为1芽2叶展第3天,夏、秋季第1次机采适期分别为鱼叶展第22天和15天。

Research on Suitable Period for ‘Fuding’ Fresh One Bud and Two Leaves of Mechanical Picking

To improve the quality of mechanical picking fresh leaves, with one bud-two leaves and the same tenderness folder leaves for picking standard, applying single person picking machine to carry out field trials in three different tea fields. The results showed when the standard shoots(one bud-two leaves and the same tenderness folder leaves) proportion of 80.0%, 70.0%, 60.0% to pick mechanically, the proportion standard shoots of fresh leaves were 47.4%, 25.7%, 29.4%, Visible 80.0% standard shoots of fresh leaves was suitable period of mechanical picking. Intervals of standard shoots for mechanical picking in Spring of Guizhou northern tea district was about 12 days, intervals of the first and second, second and third, third and fourth mechanical picking respectively were 13, 21, 15 days in Summer. Mechanical picking intervals in autumn was 17 days. First suitable period of mechanical picking in spring was 3 days after one bud and two leaves expansion, but for Summer and Autumn was 22 days and 15 days after fish leaf expansion.