6種除草劑復(fù)配制劑對(duì)玉米田一年生雜草的防除效果

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中圖分類號(hào)： S451.22+2 文獻(xiàn)標(biāo)志碼：A 文章編號(hào)：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號(hào) 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

玉米是我國種植的主要作物之一，根據(jù)2023年統(tǒng)計(jì)數(shù)據(jù)，與其他作物相比，玉米的種植面積居于首位，占農(nóng)作物總播種面積的 25.3%[1] 。（剩余12456字）