硼是农作物正常生长不可缺少的一种微量营养元素,硼在植物体内的含量一般为干物质的百分之一至万分之二、三。不同的植物差异很大,双子叶植物含量显著高于单子叶植物。一、硼肥的应用技术作物需硼较少,适量与过量的界限相差很小,故必须注意硼肥的施用量与施用技术,应根据土壤有效硼含量,一般植物缺硼的土壤临界值为0.5毫克/千克,低于0.25毫克/千 Boron is an indispensable micronutrient for the normal growth of crops. The content of boron in plants is generally one percent to two ten thousandths of that of dry matter. Different plants vary greatly, dicotyledon content is significantly higher than monocotyledons. First, the application of boron fertilizer technology requires less boron, the amount of excess with the margin of difference is small, it must pay attention to the application of boron fertilizer and application techniques, should be based on soil available boron content, boron deficiency of the general plant soil threshold 0.5 mg / kg, less than 0.25 mg / kg