1. Variety of aging, disease resistance weakened, so the selection of disease-resistant varieties is one of the economic and effective measures.
2. The temperature is too low. It is an important factor that induces head smut, so when sowing in early spring, avoid low temperature or cover the mulch in advance, increase the temperature of the ground, or remove the tumor in time when the disease is not ruptured. , to reduce the spread of germs in the field, reduce the chance of pathogen infestation.
3. Maize smut is mainly spread by the soil. The rotation of 3-5 years or more is carried out to reduce the bacteria content in the soil. The applied soil miscellaneous fertilizer should be fully fermented to reduce the bacteria content.
4. Properly dense planting. Strengthen the management of the field, promote the robust growth of plants, and enhance their ability to resist diseases. In short, the use of disease-resistant varieties, selective use of seed coating agents and improved sowing quality, and strengthening of field management can effectively control the occurrence and harm of corn head smut.
5. Improper use of pharmaceuticals. The correct selection of seed coating agent can effectively reduce the damage of corn head smut, control efficacy can reach more than 80%. However, due to the variety of corn seed coating agents, most of them do not contain bactericide components that have a preventive and therapeutic effect on head smut, and farmers often pay attention only to the price and choose to purchase blindly.
6. Differences in cultivation sites. The same species, the same management level, planted in different locations, the incidence of varying degrees. The incidence of land that is planted on flat ground, trenches, and low-lying land is 10% to 15%, and that on slopes is 30% to 40%.
Nucleic Acid Extractor NFAST 32A
This Nucleic Acid Extraction system is a biomedical instrument specially used for automatic magnetic bead method nucleic acid extraction. You only need to add the samples to be extracted to the matching kit, put the kit into the machine, and run the edited program that comes with the instrument, and a round of sample nucleic acid extraction can be completed in 10 minutes.
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