The effects of 9 plant adjuvants on the control of Stellaria japonica and Poa pratensis by 3 herbicidesor mixtures,including MCPA-Na+Clethodim,Atrazine and Bentazon,were studied by pot experiments.The results showed t...The effects of 9 plant adjuvants on the control of Stellaria japonica and Poa pratensis by 3 herbicidesor mixtures,including MCPA-Na+Clethodim,Atrazine and Bentazon,were studied by pot experiments.The results showed that all these 9 plant adjuvants could significantly promote the control effects of MCPA-Na+Clethodim on 2 weeds,except Jiabajin for Poa pratensis.The control effect on plant number and fresh weight of Stellaria japonica increased by 90.6%~100.0%and 47.6%~56.2%respectively 10 d after the treatment,and 25.1%~96.4%and 17.7%~90.4%for Poa pratensis respectively.Pharmacodynamics,Doctor lemon oil,Pamiere,Beirunsu and Wynote had better synergistic effects.Plant adjuvants had little synergistic effect on Atrazine and Bentazon in the early stage which was 10 d after the treatment.However,when it was 20 d after the treatment,adjuvants like Yaoxiaoling,Pamiere and Beirunsu could significantly increase the control effect of Atrazine on Stellaria japonica.Yaoxiaoling,Jiabajin and Beirunsu could promote the synergistic effect of Bentazon on Poa pratensis.Adding herbicide Yaoxiaoling could increase the herbicide control effect,fresh weight control effect,plant height and fresh weight inhibition rate of weeds in maize and flax fields.And the herbicide phytotoxicity was not obvious.The combinations of plant adjuvants with 4 herbicides including Atrazine,Nicosulfuron Mesotrione Atrazine,Nicosulfuron Atrazine,and Bentazon;had better control effects on weeds in maize fields,while MCPA-Na+Clethodim+adjuvants had better control over weeds in flax fields.展开更多
基金Supported by Open-end Fund by Hunan Education Department(15K067)Science and Innovation Project for Postgraduates of Hunan(CX2018B801)~~
文摘The effects of 9 plant adjuvants on the control of Stellaria japonica and Poa pratensis by 3 herbicidesor mixtures,including MCPA-Na+Clethodim,Atrazine and Bentazon,were studied by pot experiments.The results showed that all these 9 plant adjuvants could significantly promote the control effects of MCPA-Na+Clethodim on 2 weeds,except Jiabajin for Poa pratensis.The control effect on plant number and fresh weight of Stellaria japonica increased by 90.6%~100.0%and 47.6%~56.2%respectively 10 d after the treatment,and 25.1%~96.4%and 17.7%~90.4%for Poa pratensis respectively.Pharmacodynamics,Doctor lemon oil,Pamiere,Beirunsu and Wynote had better synergistic effects.Plant adjuvants had little synergistic effect on Atrazine and Bentazon in the early stage which was 10 d after the treatment.However,when it was 20 d after the treatment,adjuvants like Yaoxiaoling,Pamiere and Beirunsu could significantly increase the control effect of Atrazine on Stellaria japonica.Yaoxiaoling,Jiabajin and Beirunsu could promote the synergistic effect of Bentazon on Poa pratensis.Adding herbicide Yaoxiaoling could increase the herbicide control effect,fresh weight control effect,plant height and fresh weight inhibition rate of weeds in maize and flax fields.And the herbicide phytotoxicity was not obvious.The combinations of plant adjuvants with 4 herbicides including Atrazine,Nicosulfuron Mesotrione Atrazine,Nicosulfuron Atrazine,and Bentazon;had better control effects on weeds in maize fields,while MCPA-Na+Clethodim+adjuvants had better control over weeds in flax fields.
