一、缺硼症状 苹果树、桃树、梨树等如果缺硼,果实易坚硬畸形,称缩果或石头果;葡萄缺硼,果穗扭曲,果串中形成多个无核小果(小粒病)。 防治措施:多采用叶面喷施,一般喷用浓度为0.1％～0.2％的硼砂溶液或0.05％～0.1％的硼酸溶液,667平方米施用量为30～100公斤。以植株充分均匀湿润为宜,喷施 First, the lack of boron symptoms Apple, peach, pear and other boron deficiency, the fruit is easy to hard deformities, said the fruit shrinkage or stone; grapes lack of boron, fruit twisting, the formation of a number of non-nuclear fruit berry ). Control measures: Use foliar spray, the general spray with a concentration of 0.1% to 0.2% borax solution or 0.05% to 0.1% boric acid solution, 667 square meters for the application of 30 to 100 kg. To fully and evenly plant moist is appropriate, spraying