茶叶生产过程中往往因茶树栽培条件、树龄、生长状态、自然因素等影响,而出现如下几种类型的茶园时,必须及时对茶树进行回剪改造。诸如:一、茶树年龄处于壮年后期,即将进入衰老的前期,而茶树生物学产量开始下降,同时在茶树高度的1/2以下已出现更新枝条时;二、茶树虽然处于壮年期,因为强采而管理不善引起早衰,即使加强管理能恢复生机,但蓬面枝条结构差,枝条稀疏,结节枝条、鸡爪枝多,树势又较高,再也无法发挥它的增产潜力时;三、茶树遭受严重自然灾害,如病虫、冻害、烧伤严重时;四、茶树虽处于丰产期,但常因植株过高,管采不便,难以防治病虫害,而使茶树产量不稳和减产时。上述4种茶树类型,我所都分别进行了研究。 Tea production process often due to tea cultivation conditions, age, growth status, natural factors, and the emergence of the following types of tea plantations, the tea tree must be promptly cut back transformation. Such as: First, the age of the tea tree is in late prime of life, is about to enter the pre-aging, and tea biological yield began to decline, while the height of the tea tree has been updated below 1/2; when the tea trees in the prime of life, The poor management led to premature aging, even if the strengthening of management can revitalize, but Punta surface structure is poor, sparse branches, nodular branches, chicken claw and more tree vigor and can no longer play its potential yield; Third, Tea tree suffered serious natural disasters, such as pests, frostbite, serious burns; Fourth, although tea is in high yield period, but often due to excessive plants, pipe mining inconvenience, it is difficult to control pests and diseases, leaving the production of tea instability and yield reduction. The above four types of tea trees, I have separately studied.