杨梅缺硼症状与硼肥施用技术研究

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

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。

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.