Lettuce is a vegetable that is cultivated mainly in spring and autumn. Lettuce is a crop that is more sensitive to herbicides (easier to produce phytotoxicity), because its roots are shallow, herbicides can easily penetrate into the root layer, and commonly used herbicides have a certain degree of impact on the growth of lettuce. For weeds growing year-round and weeds are more serious, chemical weeding is very particular about it. 1. Lettuce, celery, and boiled vegetables are more sensitive to Napropamide, and we should not use Napropamide for weeding. Trifluralin cannot be administered when lettuce is sown. 2. Long-acting herbicides such as chlorosulfonylurea, metsulfuron-methyl, tosulfuron-methyl, ethamesulfuron-methyl, bensulfuron-methyl, chlorsulfuron-methyl, and pyridoxime are not available on the frontal or surrounding fields of lettuce. Pyrililon, tribenuron, ethersulfuron, chlorimuron-ethyl, etc. 3, can not be used too fast to kill the herbicide field of lettuce, because the fast killing of earthworms in the soil is too long. Quick killings are mainly used for rice. It is best not to use vegetables. According to reports, no crops can be planted except for rice within 309 days after the application of the fast killing plant; eggplant and tobacco cannot be planted within one year; tomato and carrots cannot be grown within two years (Umbrella crops such as carrots, celery, parsley, etc. are not suitable for killing sensitive). It should be noted that when spraying fast killings, do not cause drift, and do not use water that has been killed quickly to irrigate the vegetables. 4. Herbicides that can be used are: 48% trifluralin (used before and after lettuce is transplanted), 25% herbicidal ether (used before emergence of lettuce before sowing), and 24% gourd (used before transplanting of lettuce after preparation) ), 90% efficient herbicide Dandan (applied on live lettuce). These are the things that lettuce herbicide should pay attention to. Best Neck Massager,Shiatsu Neck Massager,Neck Relax Massager,Best Massage For Neck Pain Shenzhen Jie Zhong Lian Investment Co., Ltd. , https://www.meizons.com