杨梅缺硼症状与硼肥施用技术研究

为矫治杨梅缺硼症状，采用了喷施和土施硼肥技术。调查和试验结果表明，杨梅硼元素缺乏的典型生理症状为叶小、枝梢丛生、枯梢、花量少，且不结果或很少结果。喷施0，2％硼砂液或0．2％硼砂 0．5％尿素液能明显矫治杨梅缺硼症状，改善春、夏两梢生长指标，提高坐果率，从而提高单株产量。土施硼肥也能取得较好的矫治效果，施用量以硼砂100g／株为佳；同时，土施处理在生产实际中还表现出良好的后续效应。

Studies on Symptoms of Boron Deficiency and Applying Techniques of Boron Fertilizer of Chinese Bayberry (Myrica rubra)

With the investigation,it was found that the symptoms of boron deficiency in Chinese bayberry(Myrica rubra)were as follows:small leaves,clustered stems,dead buds and little flowers and fruits.The results of field experiments indicated that spraying boron fertilizer(0.2% borax solution only or 0.2% borax solution mixed with 0.5% urea) could improve growth of leaves and stems,and increasing fruit set ratios and fruit yield.Applying boron fertilizer(100 g/plant)into soil was also effective and the residue effects were observed in practice as well.