Q: On September 4th and 5th, the rice began to smash. On September 1st, 30ml of guana® benzoyl azole and 25 grams of 75% tricyclazole were used per mu, and avermectin was used to control rice koji. Diseases and other pests. On September 7th, it was prepared to use Tuanmu® benzoylpropanazole for 1 time. As a result, the distributor replaced the Tuanmu® benzoylpropanazole with 430 g/L of tebuconazole per acre, 27 g. % rice amide amide 90 ml, 5.7% emamectin benzoate 15 g. Is the amount of tebuconazole too large? Does it have a big impact on rice heading? He said that there is no problem with 430 g/L of tebuconazole 30 ml per mu, and it is not possible to use Guanmiao® Benzyl-Propanazole. Switched to tebuconazole, and said that the drug has a special effect on rice smut. Is this really true?
Answer: Use 430g/L of tebuconazole per acre, 27g, equivalent to 11.61g of tebuconazole pure drug per acre, the dosage is too large; easy to rice when the rice grows weak or shortly after application Growth causes adverse effects. The above-mentioned field was used for 3 days before the use of Guanmu® benzoyl carbazole 30 ml per acre, equivalent to 9 grams of benzyl-propiconazole pure drug per acre, and 2.61 grams of azole fungicide pure drug per acre. The dosage is large, and the interval between medications is short, which is easy to cause adverse effects on rice heading, especially in the case of poor growth of rice and strong cold weather in the short term after application. It is recommended to further observe the heading situation of rice. If the heading is difficult, spray the Bishui® Chi·å²ä¹™Â·èŠ¸è‹” to promote heading.
Both benzoyl propiconazole and tebuconazole are azole fungicides, and moderate application has good control effect on rice false smut. These two drugs have different degrees of inhibition on rice growth, among which the inhibition of benzoylpropanazole is relatively weak, and the inhibition of tebuconazole is relatively strong. Tebuconazole is used to control diseases such as rice false smut, generally 6-8 grams per acre. Use 430 g / liter of tebuconazole 30 ml per acre, equivalent to 12.9 grams of tebuconazole pure drug per acre, the amount is large, in the case of poor growth of rice or short-term application of strong cooling weather, easy to rice Heading has an adverse effect and it is not recommended to use such a high amount.
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(Source: Jiangsu Agricultural Science and Technology News)
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