一年生杂草，在一个生命周期内中只开花结实一次，种子繁殖，整个生命周期不到一年时间完成。分为夏季一年生和冬季一年生两类。
本发明用于防除水稻田一年生杂草。
The invention is used for preventing and removing annual grassy weeds in a paddy field.
结果表明，放牧能明显抑制一年生禾本科杂草及播种多年生禾本科牧草的生长，但对白三叶和草地有害植物的生长都有促进作用。
The results showed that grazing restrained the growth of annual gramineae weeds and perennial gramineae grass, but accelerated the growth of white clover and noxious plants.
选用24%氨氯吡啶酸水剂，对林地一年生及多年生阔叶杂草、灌木进行防除试验。
The controlling test was carried out to the annual and perennial broadleaved weed and shrub on forestland with 24% picloram Sc.
应用推荐