6种除草剂复配制剂对玉米田一年生杂草的防除效果

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中图分类号： S451.22+2 文献标志码：A 文章编号：1003-935X（2025）01-0037-13

Control Effects 6 Herbicides Compounds on Annual Weeds in Corn Fields

（1. 15Oo86，China; 2. 1O0193，China）

Abstract：To providea theoretical basis fortherational application herbicidesandproperselection herbicides compounds incorn fields during production，a field plot trial wasconducted in 2O23．Sixcommonlyused herbicides compound were tested as pre-and post-emergent herbicides on annual weeds in corn fields，including topramezone·isoxaflutole 55% SC，acetochlor·2，4-D ethylhexyl 89.7% EC，topramezone ⋅ terbuthylazine 33% OD，topramezone·nicosulfuron ⋅ atrazine 30% OD，mesotrione ⋅⋅ nicosulfuron ⋅ terbuthylazine 31% OD，and mesotrione·acetochlor·atrazine 60% SC.Evaluations included weed control eficacy，selectivity degrees and yield corn.Results showed that all six compounds were selectivityto corn.Weed control eficacy herbicides compounds achieved over 86% while reducing individual herbicide dosageand broadening weed control spectrum，demonstrating significant superiority over single-component formulations.At recommended dosages，pre-emergent herbicide topramezone·isoxaflutole 55% （20 SC （ 1500-3000mL/hm2 ）and post-emergent herbicide topramezone ⋅⋅ nicosulfuron·atrazine 30% OD（1200- （204号 1500mL/hm2 ）showed relatively beter performance.Two pre-emergent herbicides exhibited superior controlling Poaceae weed Echinochloacrusgali compared to the four post-emergent herbicides，butshowed lower efficacyagainst broad-leaved weed Abutilon theophrasti than post -emergent herbicides.

Key words：herbicide compound;annual weed;control effect;selectivity;the corn field

玉米是我国种植的主要作物之一，根据2023年统计数据，与其他作物相比，玉米的种植面积居于首位，占农作物总播种面积的 25.3%[1] 。（剩余12456字）