硼是高等植物必需的营养元素,蔬菜的含硼量普遍较高,一般比禾本科作物高数倍至十几倍,如萝卜的含硼量高达49.2mg/kg(以干物质计)。需硼量较大的蔬菜,易因缺硼而受害。萝卜、甘蓝、大白菜、芹菜、芜菁等需硼量较多,通常易发生缺硼症。近年因气侯干旱等原因,萝卜褐心病这种由于供 Boron is an essential nutrient for higher plants. Vegetables contain relatively high levels of boron, which are several times to ten times higher than that of grasses. For example, the amount of boron in radishes is as high as 49.2 mg / kg on a dry matter basis. Need a larger amount of boron vegetables, easy to suffer from boron deficiency. Radish, cabbage, cabbage, celery, turnip and other boron needs more boron deficiency is usually prone to disease. In recent years due to drought and other reasons, radish brown heart disease due to this