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苗木发生除草剂药害后,应根据不同情况,采取相应措施,对药害严重,估计损失超过60%以上的,应立即毁掉,安排改种,对受害较轻的,可采取以下措施:1、大水淋洗。对叶面或植株由于喷洒除草剂而发生药害,而且发现较早,可尽快用大量清水喷洒苗木叶面,反复2~3次,尽量把苗木表面的药剂冲刷掉,并增施磷钾肥,中耕松土,促进根系发育,以增强苗木恢复能力。2、增施速效肥。迅速增施尿素等速效肥,以增强苗木生长活力,促进早发,加速苗木恢复,这对受害较轻的幼苗有较好的效果。
After the occurrence of herbicide pesticide damage, seedlings should take corresponding measures according to different situations. If the damage is serious and the estimated loss is over 60%, the seedlings should be immediately destroyed and arranged for replanting. For the lesser victims, the following measures may be taken: 1, water rinse. On the foliage or plants because of spraying pesticides and phytotoxicity, and found earlier, as soon as possible with plenty of water spray seedling foliage, repeated 2 or 3 times, try to wash away the seedlings surface chemicals, and the increase of phosphorus and potassium fertilizer, Cultivation of loose soil, promote root development, in order to enhance seedling recovery. 2, increasing speed fertilizer. The rapid increase of urea and other quick-acting fertilizer to enhance seedling growth and vitality and promote early onset and accelerate the recovery of seedlings, which have less damage to the seedlings have better results.