苗圃杂草一直是林业苗圃工作中的一大难题。苗圃杂草来源多而杂,且根系发达,茎叶茂密,生长迅速,有强大的生命力,消耗了苗圃地大量的水分和养分,造成苗圃地阴湿,通风不良,透光少,影响苗木正常生长和光合作用,降低苗木长势,促使苗木病虫害的增加,从而提高了生产成本。化学除草剂 Nursery weeds have long been a major challenge in forestry nurseries. Nursery weeds and more sources of miscellaneous, and developed root system, stems and leafy, rapid growth, a strong vitality, consume nursery lot of water and nutrients, resulting in nursery wet, poor ventilation, less light, affecting seedlings normal Growth and photosynthesis, reduce the growth of seedlings, seedlings to promote the increase of pests and diseases, thereby increasing the cost of production. Chemical herbicide