Screening of Herbicides to Control Main Weed Communities in Different Regions of Henan Province
SHEN Changchao
TANG Wenwei
ZENG Dongqiang
HAO Hongdan
SU Wangcang
XU Hongle
WU Renhai
Abstract：To provide a basis for the main weeds control of wheat field in different regions of Henan province,this study explored the control effects of several herbicides (mesosulfuron-methy,isoproturon,bromoxynil octanoate,fluroxypyr and so on) and their mixtures on Aegilops tauschii and broadleaf weeds in wheat field of East Henan province,Alopecurus aequalis in rice-wheat rotation field of South Henan province,and Sclerochloa dura in rice-wheat rotation field along the Yellow River of North Henan province.The result showed that,25％ bromoxynil octanoate 1 800 g/ha + 20％ fluroxypyr 900 g/ha had the best overall control effect on Aegilops tauschii and broadleaf weeds in wheat field of East Henan province,reaching 91.98％.15％ clodinafop-propargyl 300 g/ha + Jijian 225 mL/ha had the best control effect on Alopecurus aequalis in rice-wheat rotation field of South Henan province and the fresh weight control effect was 99.1％.All herbicide treatments had poor control effects on Sclerochloa dura in rice-wheat rotation field along the Yellow River of North Henan province at 14 days after spraying herbicides.3％ mesosulfuron-methy 675 mL/ha had the best control effect on Sclerochloa dura and the fresh weight control effect was 92.8％ at 32 days after spraying this herbicide.Sclerochloa dura had produced resistance of different degree to other herbicides.It is effective to control weeds with 3％ mesosulfuron-methy 450 mL/ha + 10％ carfentrazone-ethyl 180 g/ha,25％ bromoxynil octanoate 1 800 g/ha + 20％ fluroxypyr 900 g/ha,or 25％ bromoxynil oetanoate 1 800 g/ha in wheat field dominated by broadleaf weeds.It is effective to control weeds with 3％ mesosulfuron-methy 450 mL/ha + 25％ bromoxynil octanoate 1 200 g/ha in wheat field dominated by Aegilops tauschii.It is effective to control weeds with 15％ clodinafop-propargyl 300 g/ha or 7.5％ pyroxsulam 135 g/ha mixed with Jijian 225 mL/ha in wheat field dominated by Alopecurus aequalis.It is effective to control weeds with 3％ mesosulfuron-methy 675 mL/ha in wheat field dominated by Sclerochloa dura.
Keywords：Henan provincedifferent regionswheat fieldsweed communitiesherbicidescontrol effect
Publication Date：2017-10-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：6( 86-91 )