不同修剪与施肥结合处理对茶树树冠结构及春茶产量影响

Effects of Different Pruning and Fertilization Treatments on Tea Tree Crown Structure and Spring Tea Yield

以茶树品种‘白叶1号’和‘槠叶齐’为试验对象,采用3因素3水平完全随机试验设计,探讨不同施肥与修剪处理对茶树树冠结构及春茶产量的影响。结果表明,茶树树冠受修剪时间和修剪高度的影响,枝条数量和枝条高度均以修剪时间5月10日、修剪高度50 cm处理最佳;不同修剪时间和修剪高度对春茶产量的影响存在显著差异(p<0.05),修剪时间5月10日、修剪高度50 cm、高施肥水平处理春茶产量最高,‘白叶1号’(修剪时间6月10日、修剪高度30 cm、低施肥水平)与‘槠叶齐’(修剪时间6月10日、修剪高度40 cm、中施肥水平)分别具有较高一芽一叶百芽重;树冠结构对鲜叶产量有重要影响,枝条数量及枝条高度与鲜叶产量存在显著正相关。修剪时间5月10日、修剪高度50 cm及高施肥水平为茶树优良树冠结构培育和春茶高产的最优组合措施。

Taking tea culitivars Baiye 1 and ZhuYeqi as experimental objects,3 factors and 3 levels completely randomized experimental design were adopted to explore the effects of different fertilization and pruning treatments on tea tree crown structure and spring tea yield.The results showed that the crown of tea tree was affected by pruning time and pruning height,and the number of branches and the average height of branches reached the best when it was pruned on May 10th and pruned at height of 50cm.There are significant differences in the effects of different pruning time and height on spring tea yield(p<0.05),the spring tea yield of the treatment with pruning time of May 10th,pruning height of 50cm and high fertilization level was the highest;Baiye 1(pruning time of June 10th,pruning height of 40cm and low fertilization level)and ZhuYeqi(pruning time of June 10th,pruning height of 40 cm,medium fertilization level)had higher weight of one hundred buds,respectively.The canopy structure has an important effect on fresh leaf yield,and there is a significant positive correlation between the number and height of branches and fresh leaf yield.The optimal combination measures for cultivating excellent tea tree crown structure and high spring tea yield are pruning on May 10th,pruning height of 50 cm,and high fertilization level.