氯元素也是植物必须的16种营养元素之一，作物吸收氯元素主要来源于氯化钾、氯化铵或以其为原料生产的复混(合)肥。但有些植物对氯离子非常敏感，当吸收量达到一定程度，会明显地影响产量和品质，通常称这些植物为忌氯植物。烟草、马铃薯、甘薯、甘蔗、西瓜、葡萄、柑橘、苹果、茶叶、白菜、辣椒、莴笋、苋菜等都是忌氯作物。

Chlorine is also one of the 16 nutrient elements necessary for plants. Chlorine absorbed by crops mainly comes from potassium chloride, ammonium chloride or mixed fertilizer produced with it as raw materials.However, some plants are very sensitive to chloride ions. When the absorption amount reaches a certain level, it will obviously affect the yield and quality. These plants are usually called chlorine-free plants.Tobacco, potato, sweet potato, sugar cane, watermelon, grape, orange, apple, tea, cabbage, pepper, lettuce, amaranth and so on are chlorinated crops.