关键词: 茎叶除草剂, 鹰嘴豆, 阔叶杂草, 防效, 安全性

Abstract: 【Objective】To determine the safety on the growth of chickpea and the control efficacy on broad leaf weeds of different foliar-applied herbicides.【Methods】Treatments of 25% fomesafen AS（750,1 125,1 500 mL/hm²）and 480 g/L bentazone AS（2 250,3 000,4 500 mL/hm²） were set up,with water treatment（CK1） and artificial weeding（CK2） as control. In randomized block arrangement the effects of different application rates of the two foliar-applied herbicides on the growth,yield,and 100-grain weight of chickpea,as well as the control efficacy on broad leaf weeds were analyzed after treatment.【Results】25% fomesafen AS was safe for chickpea at all three doses. The total weed control efficacy was 1 500 mL/hm²>1 125 mL/hm²>750 mL/hm². The plant control efficacy of 1 500 mL/hm² treatment on broad leaf weeds were over 90%,and the fresh weight control efficacy were 96.39%. After applying 480 g/L bentazone AS,the pesticide damage in the 4 500 mL/hm² application area was serious,and 80% of chickpea plants died after 7 d. Chickpeas in the 3 000 mL/hm² and 2 250 mL/hm² application areas had different degrees of slight pesticide damage and returned to normal growth after 15 d. However the yield and 100 grain weight decreased greatly,extremely significantly different compared to the CK1 with poor safety.【Conclusion】25% fomesafen AS 1 500 mL/hm² uniform sprayed on stem and leaf could effectively control broad leaf weeds in chickpea field. 480 g/L bentazone AS was not safe for chickpea at the experimental dose and was not suitable for chickpeas field.

Key words: Foliar-applied herbicide, Chickpea, Broad leaf weeds, Control efficacy, Safety