What is the reason for the yellowing and thinness of turmeric after emergence

Yellowing of ginger leaves is a very common phenomenon, if a large area of yellowing, may be something wrong with ginger, serious may lead to a reduction in production. So what is the reason for the yellowing and thinness of ginger after emergence?

First, what is the reason for yellowing and emaciation?

The yellowing of ginger leaves may be infected with ginger plague, which shows that the fresh leaves turn yellow and wither overnight, spread widely and get sick quickly. It's a fungal virus. This is due to the fact that the organic fertilizer used is not fully mature and the production of ammonia during fermentation in the soil leads to the proliferation of fungal viruses.

Second, how to prevent and cure it?

1. Rake the soil deeply before sowing, spray chloropicrin soil fumigant, and then cover the film to disinfect and kill fungi. The temperature is above 20 degrees Celsius for a week, and if the temperature is low, it can be about 2 weeks.

two。 When yellow leaf disease occurs during the growing period, it is also possible that the film is removed too late, and the plastic film mulching leads to high soil temperature, resulting in the death of ginger. I would like to remind ginger farmers to remove the film in time and in the afternoon on cloudy days.

3. Yellow leaf disease is most likely to occur in overcast and rainy weather, because humid and hot weather can easily lead to high-speed propagation of bacterial viruses, which can be prevented by difenoconazole and carbendazim.

4. After the heavy rain, the ginger field will produce stagnant water, more than 2 hours, will cause ginger root damage, causing the whole plant to begin to die, the initial performance of leaves yellowing. It is particularly important to rake the ridges in time and release stagnant water.

After the emergence of ginger, if it is a small amount of yellow and thin, it is a normal phenomenon, if it is the emergence of a large area, ginger farmers should pay special attention, otherwise it will lead to a reduction in production. It is best to do a good job in prevention and control to avoid this situation.