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Corn top rot is a new disease in China, which is mainly caused by Fusarium moniliforme in soil. The occurrence of top rot disease is on the rise. The damage is heavy and the potential risk is high. The symptoms are as small as a single ear, and the grain is not full. The degree of the disease varies depending on the land to be cultivated, cultivation management, and variety. The average incidence rate is 10% to 20%, and the incidence rate of severe plots is as high as 70%, which seriously affects the yield of corn. The occurrence of corn head rot occurs in the soil temperature and humidity and the sowing date. During the planting process, temperature and humidity recorders are used to monitor the temperature and humidity in the soil in real time, and appropriate regulation and control are performed. What is the environment in which the incidence of top rot is relatively high?
By using a temperature and humidity recorder to control the temperature and humidity of the soil to understand the occurrence probability of corn top rot, it was found that the low temperature and high humidity in the soil environment are conducive to the occurrence of corn top rot disease. In numerous experiments, it was found that when the temperature is at 25°C and the humidity is at 10%, the probability of getting rich and happening in corn is the lowest. Therefore, proper control of the temperature and humidity in the environment must be performed during planting to avoid Top rot affects the yield of corn.
Sowing time will affect the occurrence of the disease to a certain extent, sowing too early (April 2), due to the low soil temperature and the emergence of seedlings late, serious pathogen infection, high incidence, low yield; sowing too late (4 On the 30th of the month, although the morbidity rate decreased, corn gluttony was ripe and the yield was also low. The incidence of sowing on April 16 was relatively low, at 13.3%, with the highest level of yield. Therefore, in the actual production, in order to reduce the incidence of corn top rot disease and increase yield, appropriate sowing should be promoted, and sowing on April 16th is appropriate.
In fact, early sowing, you can also use the form of cover film to increase the temperature of the soil, as to increase the amount and effect can be directly connected to the temperature and humidity recorder to monitor, through this form to reduce the emergence of top rot.
By using a temperature and humidity recorder to control the temperature and humidity of the soil to understand the occurrence probability of corn top rot, it was found that the low temperature and high humidity in the soil environment are conducive to the occurrence of corn top rot disease. In numerous experiments, it was found that when the temperature is at 25°C and the humidity is at 10%, the probability of getting rich and happening in corn is the lowest. Therefore, proper control of the temperature and humidity in the environment must be performed during planting to avoid Top rot affects the yield of corn.
Sowing time will affect the occurrence of the disease to a certain extent, sowing too early (April 2), due to the low soil temperature and the emergence of seedlings late, serious pathogen infection, high incidence, low yield; sowing too late (4 On the 30th of the month, although the morbidity rate decreased, corn gluttony was ripe and the yield was also low. The incidence of sowing on April 16 was relatively low, at 13.3%, with the highest level of yield. Therefore, in the actual production, in order to reduce the incidence of corn top rot disease and increase yield, appropriate sowing should be promoted, and sowing on April 16th is appropriate.
In fact, early sowing, you can also use the form of cover film to increase the temperature of the soil, as to increase the amount and effect can be directly connected to the temperature and humidity recorder to monitor, through this form to reduce the emergence of top rot.
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