Celery fields are susceptible to weeds such as sedge, purslane, crabgrass, and wild leeks, especially in celery and nursery fields that are cultivated in open fields. According to the survey, the cultivation of celery in the open field can account for more than 40% of the whole cultivation and management process, and the weeding in the seedling stage is especially labor-intensive. It is necessary to apply chemical weeding.
Nursery celery chemical weeding. After sowing, use 48% trifluralin emulsifiable concentrate 100-150 ml or 48% dilamine emulsifiable concentrate 200 ml per mu before spraying, and then spray the soil and then mix the soil; after the emergence, spray 3 ml of herbicide ether emulsifiable concentrate 500 ml to spray the stems and leaves. . The seedling celery has strong resistance and adapts to a variety of herbicides. However, when the seedlings are unearthed and the young stems are not erect, they are susceptible to phytotoxicity.
Transplanting celery chemically weeded. Before transplanting or after transplanting, 48% trifluralin EC 100-150 ml/mu or 48% dilamine EC 200-250 ml/mu can be used to spray the soil, apply before transplanting, and the solution should be infiltrated. The topsoil is 1 to 5 cm, and then transplanted; after transplanting, the application should be combined with the cultivating and mixing soil. Transplanting celery can also be used: 20% herbicidal ether granules 1000-1500 g/mu, adding 20-30 kg of soil to make toxic soil, celery transplanting after slow seedling application; 25% herbicide ether wettable powder 1000~1250 g / acre, add 20 ~ 30 kg of soil to make toxic soil, and then water; 25% herbicide ether emulsifiable concentrate 500 ~ 625 ml / acre, celery seedlings after the weeds just unearthed spray.
Precautions. Soil treatment is best applied before or after seeding. Stem and leaf treatment should be used after the weeds are in the seedlings, the droplets should be fine, and the spray should be even and thoughtful. Soil treatment requires smooth kneading, fine and moist soil; stem and leaf treatment should be applied in high temperature, sunny and windless weather. After application, the film is covered by the mulch film, and the dosage can be reduced by 20% to 30% compared with the open field. The medicinal agents should be used interchangeably to avoid the long-term use of a certain agent and the weeds to develop resistance.
Source: Hunan Science and Technology News
Nursery celery chemical weeding. After sowing, use 48% trifluralin emulsifiable concentrate 100-150 ml or 48% dilamine emulsifiable concentrate 200 ml per mu before spraying, and then spray the soil and then mix the soil; after the emergence, spray 3 ml of herbicide ether emulsifiable concentrate 500 ml to spray the stems and leaves. . The seedling celery has strong resistance and adapts to a variety of herbicides. However, when the seedlings are unearthed and the young stems are not erect, they are susceptible to phytotoxicity.
Transplanting celery chemically weeded. Before transplanting or after transplanting, 48% trifluralin EC 100-150 ml/mu or 48% dilamine EC 200-250 ml/mu can be used to spray the soil, apply before transplanting, and the solution should be infiltrated. The topsoil is 1 to 5 cm, and then transplanted; after transplanting, the application should be combined with the cultivating and mixing soil. Transplanting celery can also be used: 20% herbicidal ether granules 1000-1500 g/mu, adding 20-30 kg of soil to make toxic soil, celery transplanting after slow seedling application; 25% herbicide ether wettable powder 1000~1250 g / acre, add 20 ~ 30 kg of soil to make toxic soil, and then water; 25% herbicide ether emulsifiable concentrate 500 ~ 625 ml / acre, celery seedlings after the weeds just unearthed spray.
Precautions. Soil treatment is best applied before or after seeding. Stem and leaf treatment should be used after the weeds are in the seedlings, the droplets should be fine, and the spray should be even and thoughtful. Soil treatment requires smooth kneading, fine and moist soil; stem and leaf treatment should be applied in high temperature, sunny and windless weather. After application, the film is covered by the mulch film, and the dosage can be reduced by 20% to 30% compared with the open field. The medicinal agents should be used interchangeably to avoid the long-term use of a certain agent and the weeds to develop resistance.
Source: Hunan Science and Technology News
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