摘要
柑橘园杂草严重影响柑橘的产量和品质。试验设18%草铵膦水剂有效成分用量750、900、1 050、1 800 g/hm2共4个处理,以30%草甘膦水剂有效成分用量1 687.5 g/hm2和人工除草为对照处理,以清水处理为空白对照,研究了喷施18%草铵膦水剂对柑橘园各类杂草的防治效果及安全性。结果表明：18%草铵膦水剂可有效防除柑橘园绝大多数杂草,持效期可达30 d,且在为期30 d的试验期内对周围环境和非靶标生物均无明显的不良影响;草铵膦水剂有效成分用量为750 g/hm2时即可达到与草甘膦常规用量（有效成分用量1 687.5 g/hm2）相同的防治效果,草铵膦水剂有效成分用量为900~1 050 g/hm2时可有效防除柑橘园杂草,满足防除实践要求。
The weeds in citrus orchards seriously affect the yield and quality of citrus. 4 active ingredient dosage of 18% glufosinate AS was designed which including 750, 900, 1 050, 1 800 g/hm2, and sprayed active ingredient dosage of 1 687.5 g/hm2 30% glyphosate AS and manual weeding were used as control treatments, sprayed water as the blank control, the control effects and safety of sprayed 18% glufosinate AS on controlling weeds in citrus orchards were studied. The results showed that 18% glufosinate AS could effectively control most of weeds in citrus orchards, the duration period was up to 30 d, within 30 d of the experimental period, there were no significant adverse effects on the environment and non target organisms. The amount of active ingredient of 750 g/hm2 glufosinate agent had the same effect with glyphosate conventional dosage. The amount of active ingredient of 900-1 050 g/hm2 glufosinate agent could effectively control the weeds in citrus orchards and meet the requirements in practice.
出处
《河北农业科学》
2015年第4期49-51,70,共4页
Journal of Hebei Agricultural Sciences
