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捺果是浦城县的名特优水果,全县种植面积4.85万亩,但每年春季常发生较大面积的枯枝小叶症,造成捺树“见蕾不见花”的现象时有发生,严重影响了捺果的产量,成为生产中急待解决的问题。为此,笔者参与了对此症的研究工作,经研究表明:此症属于缺硼症状,施用硼肥能有效防止(木奈)树枯枝小叶症的发生,大幅度提高捺果的产量。现就捺树的缺硼症状和防治技术介绍如下:一、缺硼症状(木奈)树缺硼症发生时间主要在春季的萌芽抽梢期,集中在3月上旬至4月下旬这段时间。主要症状是:顶芽迟发,下部侧芽先萌发,新梢长期不长,无顶端优势。叶
The fruit is the name of Pucheng County, excellent fruit, the county planted area of 48500 acres, but spring often occurs a large area of litter leaflet disease, resulting in the tree-bending “see the bud not see flowers,” the phenomenon has occurred, seriously affected The fruit of the yield of fruit, become a problem to be solved in production. To this end, I participated in the study of this disease, the study shows that: This disease is a lack of boron symptoms, the application of boron can effectively prevent the (Mina) tree litter leaflet disease, significantly increase the yield of fruit. The symptoms of boron deficiency and prevention and treatment of the tree is now introduced as follows: First, the symptoms of boron deficiency (Chennai) Tree boron deficiency occurs mainly in the spring buds shoot period, concentrated in early March to late April this period of time . The main symptoms are: delayed late bud, the lower bud side of the first germination, long-term shoot is not long, no top edge. leaf