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大棚蔬菜喷药时,因药理不清、用量不准、时间不宜等,会产生药害。当发现错用或有药害症状出现时,要迅速采取以下补救措施。清水喷淋:错喷药剂或发生药害后,迅速喷淋清水,洗净受害植株表面药液。碱性药剂造成的药害,喷水时可加入适量食醋,酸性药剂造成的药害,喷水时加入0.1%的生石灰,能够中和药剂,使之尽快分解失效。注意棚室通风,散温降温,利于有害气体排出。摘除受害枝叶:叶片遭受药害后,褪绿变色的枝叶要及时摘除,遏制药剂在植株体内的渗透传导。
Greenhouse vegetable spray, due to pharmacological problems, the amount is not allowed, the time should not wait, will have injury. The following remedial action should be taken swiftly when it is found that the wrong or harmful symptoms appear. Spray water: wrong spraying agent or phytotoxicity, quickly spray water, wash the victim plant surface solution. Alkali agent caused by injury, water spray can be added when the amount of vinegar, acid injury caused by chemical agents, adding 0.1% of the quicklime spray, to neutralize agents, make it decompose as soon as possible failure. Note that the shed ventilation, cooling temperature, conducive to the discharge of harmful gases. Removal of damaged branches and leaves: after suffering leaf damage, the green and discolored branches and leaves should be promptly removed to curb the penetration of chemical agents in the plant conduction.