China Naming Network - Eight-character Q&A - How to control wheat sheath blight in heavy snow season.

How to control wheat sheath blight in heavy snow season.

Timely use of Chigangmycin powder or aqua, carbendazim, thiophanate-methyl or diniconazole for prevention and treatment.

Control measures of wheat sheath blight

1, formula fertilization

In order to overcome the traditional habit of partial application of nitrogen fertilizer, 50 kilograms of compound fertilizer of nitrogen, phosphorus and potassium was applied per mu when wheat was planted, and then Ribelli bird's nest water-soluble fertilizer was applied.

Step 2 broadcast at night

Vigorously promote the "wheat-corn two nights and one increase technology", appropriately postpone the corn harvest period, and postpone the wheat sowing date to 65438+ 10 ~ 10, which not only ensures the increase of corn production, but also overcomes the problems of early sowing date, large population before winter and easy occurrence of sheath blight.

3. Reduce the amount of sowing

Change the misconception that farmers have money to buy seeds but no money to buy seedlings for a long time, and reduce the sowing amount of wheat to 10~ 12.5 kg, so as to prevent the wheat population from being too large, diseases too much and wheat sheath blight.

4. Chemical control

Aiming at the wheat field with white ears before wheat harvest, combined with the soil preparation before wheat planting, 1kg 80% carbendazim wettable powder or 1.5kg 50% carbendazim wettable powder and 10~ 15 kg essence were evenly mixed in the field, which effectively prevented the occurrence of wheat sheath blight.

In the wheat seedling stage, once wheat sheath blight is found in the wheat field, 300 times of 5% jinggangmycin aqueous solution or 600 times of 50% carbendazim wettable powder can be used to remove the nozzle during the spraying period and spray the liquid medicine to the base of wheat stem, with a large amount of liquid medicine per mu, at least 45-60 kg.