How carbendazim treats peanut seed disease

The main diseases of peanuts are stalk rot, root rot, crown rot, blight, and so on, and the yield loss due to these diseases is about 20%-25%. The best way to prevent diseases is to use carbendazim, a systemic fungicide. Handle the seeds. Carbendazim produced in China has 50% Carbendazim WP and 40% Carbendazim Suspension. After the seed is treated with this medicine, it can not only eliminate the germs inside and outside the seed, but also protect peanut seeds, shoots and roots. The base of the stem is protected from infection by bacteria in the soil, and there is also a certain fertilizer effect. Carbendazim suspension is more effective than carbendazim wettable powder.

There are several methods for treating peanut seeds with medicaments:

First, the drug soil dressing: Use 50% carbendazim WP, 0.15-0.25 kg per 50 kg seed (based on the effective component of 0.075-0.125 kg), the powder and fine dry soil 2.5-5 kg ​​mixed Evenly, mix up with medicinal soil. Peanut seeds are first washed with water and wetted, and then layered and mixed with medicinal soil. Each peanut seed should be evenly coated with medicinal soil, and the soil can be sowed immediately after mixing the soil.

Second, the liquid seed dressing: with 50% carbendazim WP, per 50 kg of peanut seed medicine used 0.15-0.25 kg, plus 2 kg of clear liquid mixture, sprayed with a sprayer on the peanut seeds, so that each Peanut seeds are evenly stained with liquid medicine and can be sown after drying.

Third, the liquid soaking: Use 50% carbendazim WP, per 0.15 kg of seeds per 0.15-0.25 kg, plus 30 kg of liquid mixing liquid, soak peanut seeds 50 kg, cold soak 24 hours, the middle turn 2 -3 times, sowing after soaking.

The above methods are all more than 90% effective in controlling stalk rot, blight, and root rot, and there is no obvious difference in the disease-prevention effect between seed dressing and soaking, but considering the seed dressing method is simple and convenient, or the seed dressing is it is good. The pesticide treatment of peanut leaves is dark green and grows robustly with an average yield increase of about 30%, some yield increase of 50%, even more than double, a minimum increase of about 10%, and a full fruit rate increase of 10-20%. Increase in the amount, but when the amount of the drug (effective ingredient) exceeds 1% of the seed, there is a phytotoxicity that affects seedling emergence.

Although treatment of peanut seeds with carbendazim has obvious disease-preventing and yield-increasing effects, this agent has no disease-preventive effect on peanut bacterial wilt. If no carbendazim is used to treat the onset of peanut seeds, it may be sprayed with 1000-fold liquid at seedling stage if necessary. The disease-resistance effect is also above 90%, and the yield is increased by more than 10%. There are also 500-times liquid irrigants. A certain effect.


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