How to prevent ginseng sunburn? What are the prevention and treatment methods for sunburn of ginseng

1) Sunburn is a disease that occurs when ginseng is directly exposed to strong light. Due to the high temperature and strong sunlight, ginseng is very prone to sunburn in dry and sultry weather. Manifestations of the disease:

The light leaves turn light green and yellow, but the leaves can still survive and can carry out photosynthesis; In the case of severe damage, yellow-brown dead lesions of different sizes and shapes appear on the leaves. The leaves become brittle, crumble and fall off. Sunburn disease mostly occurs in June and July, under the conditions of high temperature and dry climate, the damage degree is aggravated, affecting the normal growth and development, resulting in the reduction of ginseng root yield.

In severe cases, the whole plant dies. When the temperature exceeds 33 and the light intensity reaches more than 80,000 lux, sunburn occurs for two consecutive days. Generally, the younger the age, the more serious the damage.

The annual inward abduction leaves are more damaged during the flowering period.

There are few stomata on ginseng leaves, strong light exposure time is long, stomata are closed, transpiration is blocked, the temperature in the leaves increases, chlorophyll is first destroyed and loses its function, and in more serious cases, the tissues are scorched, which is the main reason for the occurrence of sunburn.

2) Prevention and control methods Before and after the summer solstice, combine the loose soil to move the ginseng plants that extend to the outside of the shed into the ginseng shed, and arrange flowers, hang flowers or hang curtains on the ginseng shed in time to reduce direct sunlight and prevent and alleviate the occurrence of sunburn.

The prevention and control of grape sunburn should be started from the following aspects:

1) Strengthen the cultivation of grape fitness, choose fertile sandy loam land for planting.

2) Increase the application of organic fertilizer, avoid excessive application of fast-acting nitrogen fertilizer, dig drainage ditches, and pay attention to timely drainage.

3) Pay attention to the management of the shelf, avoid exposure to the sun, and leave more leaves near the ears for shade during summer pruning. Determine the best part of the ear.

Master the fruit thinning and bagging period, the thinning of the ears is carried out before the grapes are about to bloom, and the fruit thinning and bagging are carried out when the berries and soybeans are the size, and the preventive effect of this method on sunburn is.

Covered with shade nets, during high temperatures, put down at 10 a.m. and fold up at 3 p.m.

Remove the diseased particles, the victim is susceptible to anthrax or other fruit rot diseases, and should be removed in time.

What are the prevention and treatment methods for sunburn of ginseng? Prevention and control methodsBefore and after the summer solstice, combine the loose soil, move the ginseng facilities outside the shed to the ginseng shed, and adjust the light in the ginseng shed in time. The length of the front and back openings of the ginseng shed is appropriate, and the shadow on the roof of the shed is sufficient and cautious.

In summer, the temperature is high and the light is strong. Curtains can be hung in front and back of the ginseng shed. Hanging flowers or curtains in a ginseng shed to reduce direct glare can prevent and reduce sun burning by drip irrigation or by spraying Camry + 1 sachet of Camry Melatonin Bonus Saco at the beginning of the fruit expansion period, daytime illnesses often occur at both ends of the billiard chain on the border, especially on both sides.

Control method: adjust the light of the ginseng shed, the length of the front and rear people should be appropriate, the shadow of the roof of the shed should be appropriate, and the receiving luminescence of the ginseng shed in midsummer should not exceed the MS control method based on the 319312; Adjust the light inside the ginseng canopy so that the length of the front and rear canopies is sufficient for shade on the canopy roof. In the summer, when the temperature is high and the light is strong, shade can be hung in front of and behind the ginseng shed to avoid direct sunlight.

Adjust soil moisture content to avoid drought. Prevention and treatment of ginseng sunburn. Adjust the light inside the ginseng canopy.

Ginseng is a common disease that affects the normal growth of ginseng. It is easy to occur at high temperatures. The leaf color is light green and yellow, and the leaf margin is yellowish-brown, curly and withered.

In severe cases, the entire leaf and aerial parts will wither and die. If the ginseng growth temperature at the front and back of the cup exceeds 34; It causes ginseng stems and leaves to burn ...... sunThe intensity of light has a direct commercial impact on ginseng development, yield, and even quality.

Therefore, the degree of cultivation must be appropriate. Ginseng is a perennial cultivated plant. The main diseases in industrial production are soil diseases caused by continuous planting, such as sudden collapse, toxicity:

Objects of low-toxicity control: corners, anthrax, and dew must be moderated. In summer, the high temperature and light ginseng rot put the ginseng roots in danger, and the control methods of the above four underground pests are basically the same

The fertilizer applied must be completely rotten and preferably strong enough to use.