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硼是植物生长发育所必须的营养元素之一。十几年来，我国在芹菜、大白菜、甘蓝、花椰菜、萝卜、甜菜、番茄、黄瓜等十几种蔬菜作物上发现缺硼症，其症状表现各异，施硼后症状减轻或消失，补施硼肥很有必要。 1蔬菜作物对硼的吸收特点 1.1蔬菜作物需硼量高据测定，不同作物干物?
Boron is one of the necessary nutrients for plant growth and development. In the past ten years or more, boron deficiency syndrome has been found in more than a dozen kinds of vegetable crops such as celery, Chinese cabbage, cabbage, cauliflower, radish, beet, tomato and cucumber. Symptoms are different, and symptoms are relieved or disappeared after boron application. Boron fertilizer is necessary. 1 characteristics of boron absorption of vegetable crops 1.1 high boron content of vegetable crops According to the determination of different crops dry matter?