Suggestions on weeding techniques in wheat fields before winter

In recent years, with the operation of machine-cultivation, the area of ​​grassy weeds in wheat fields such as buckwheat and wheat has increased year by year in the county, and the degree of occurrence has increased year by year, and the density has increased year by year. With the popularization and promotion of weeds in the wheat field, weeds in wheat fields are controlled to a certain extent. In view of the occurrence of weeds in wheat fields in our county this year, the following prevention and treatment technical recommendations are proposed:

 

First, select the period of prevention and control: wheat before the 3-5 leaf stage, weed 2-4 leaf stage (generally in the middle of November ).

 

Second, choose the right medicine:

 

　　 1. Blocks dominated by buckwheat: 3 grams of 70% scorpion (flurazole sulfonate) water-dispersible granules per acre , controlled by water spray.

 

　　 2, in order to steadily block mainly wheat: 3% per acre of Sigma (mesosulfuron) oil suspension 30 ml of water spraying.

 

　　 3 , grass mixed weeds and broadleaf weed mixed plots: 3.6% of the broad-spectrum (methyl iodsulfuron sodium salt? methyl disulfuron) water-dispersible granules per acre 20 grams or 7.5% priority (pyridine 10 g of sulfamethoxazole water dispersible granules were sprayed against water spray. Ment choice of 70% or mu Tiger Water dispersible granules (flucarbazone) or 3% 3 grams of Sigma (mesosulfuron) EC 30 ml with 20% tribenuron wettable powder or 5 g 13% two The sodium tetrachlorosodium chloride water agent 350 is controlled by water spray.

 

Third, note:

 

　　 1. When using the second dilution method, first use a small container to prepare the mother liquid, then pour into the sprayer and add enough water to mix well.

 

　　 2 , to ensure the quality of the spray. The amount of liquid per acre should not be less than 30kg , the spray is uniform, no heavy spray, no leakage.

 

　　 3 , the application should be carried out in sunny and windless weather, the temperature is lower than 8 °C, reducing the effectiveness.

 

Source of information: China Agricultural Promotion Network