Tidiazuron
1. Chinese common name: Thiabendron
2. English common name: Tidiazuron
3. Chemical name: 1-phenyl-3-(1,2,3-thiadiazol-5-yl)urea
4. Trade name: defoliant, defoliate, shedding treasure, thiazolone, thidiazepine
5. Chemical structure:
6. Physical and chemical properties: pure product is colorless and odorless crystal, melting point 21.5~212.5 °C (decomposition), solubility is as follows: water 31mg / L (pH7, 25 ° C), ethane 0.002, methanol 4.20, dichloromethane 0.003, toluene 0.400, Acetone 6.67, ethyl acetate 1.1 (g/L, 20 ° C). When it is light, it is easily converted into optical isomers. It is stable at room temperature of pH 5~9, and it is not decomposed in the accelerated storage stability study (14 d 54 °C).
7. Toxicity: low toxicity
8. Category: Plant Growth Retardants
9. Main dosage form: 50% wettable powder
10. Functional characteristics: Thiabendron is mainly used in cotton and used as a defoliant in cotton planting. After being absorbed by the leaves of the cotton plant, the separated tissue between the petiole and the stem can be naturally formed into leaves, which is beneficial to mechanically collecting cotton and allowing the cotton harvest to be advanced about 10 days, and helps to improve the cotton grade.
11. Using technology
(1) defoliation
When the cotton is cracked more than 60%, the stems and leaves can be sprayed with 10~20g of 667m2 of thiampene solution to promote defoliation.
The female flower of the cucumber is about to be sprayed with 2mg/L liquid to spray the female flower receptacle. Can promote fruit setting and increase single fruit weight.
After celery is harvested, spraying green leaves with 1~10mg/L can promote green preservation.
(2) Increase production and improve quality
Grapes can be sprayed with 2~6mg/L of thiampron solution at the flowering stage to increase yield.
Melon spraying plants with 2.5~3.3mg/L thiabendazole solution can increase yield and increase the rate of sitting.
12. Notes
(1) It should be strictly controlled when applying the medicine. It should not be sprayed when the cotton crack is less than 60%, so as not to affect the quality and yield. At the same time, attention should be paid to the precipitation. Raining within 2 days after application will affect the effect of the medicine.
(2) According to the cotton planting density and the height of the plant, the dosage should be flexibly controlled.
(3) Operate strictly according to the time of use, dosage and treatment.
(4) When spraying, prevent the liquid from rubbing the eyes, and do not contaminate the water after the medicine.
(5) The sprayer should be carefully cleaned after application.
(Yuege Fertilizer Network comprehensive finishing, please indicate the source, please contact 13203809264 for details)
This article URL: Liu Gong said regulators | thiabendazole effect and applicable crops
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