What are the precautions for using ethephon in rice?

(1) Function and use: to accelerate ripening and increase yield.

(2) Main principle: By releasing ethylene, fruit ripening can be promoted, bleeding can be stimulated, and sex transformation can be regulated, so as to improve the yield.

(3) Main products: 40% ethephon aqua.

(4) Key application techniques: ① Application period: milk ripening period of rice.

② dosage: 600 ~ 800 times of 40% ethephon aqueous solution.

③ Usage: spray evenly 1 time.

(5) Precautions: ① Pay attention to the concentration of chemicals and the temperature during treatment to avoid over-ripening after treatment.

(2) Use in strict accordance with the labels and instructions.

(3) This product will decompose rapidly in case of alkaline substances, and it is forbidden to mix with alkaline pesticides. It should be used together and cannot be stored.

④ This product is suitable for use in dry weather. In case of rain, pesticides should be supplemented, and the optimum temperature for application is 16 ~ 32℃.

⑤ Ethephon is very acidic and can corrode food, metal, skin and clothes. Therefore, wear gloves, glasses and protective clothing. Prevent liquid medicine from being inhaled through the nose and mouth, and do not eat, drink or smoke at the application site. Take a bath and change clothes in time after application.