Preventive measures for the latest green and dead strawberry seedlings

The phenomenon of withered seedlings will appear in the process of strawberry planting, which greatly affects the yield and income of strawberry, and brings huge economic losses to farmers. So what is the reason for the green and dead strawberries? Let's take a look at the detailed introduction.

I. the cause of occurrence

The main reason for the green and dead strawberry seedlings is that the sudden low temperature and persistent low temperature lead to the reproduction and infection of Rhizopus and Grizzly, which aggravates the phenomenon of dead strawberry seedlings. In addition, in addition to the reasons for the decrease in temperature, it is also related to varieties, soil water content, fertilizer types and cultivation management.

II. Preventive measures

1. Select improved varieties

Strawberry has strong adaptability, but the sudden drop in temperature will make it difficult for its roots to absorb water, hinder the transport of water, and have weak cold resistance. However, most of them choose early-maturing varieties, and their cold resistance and stress resistance are weaker than those cultivated in the open field, so the mortality rate is high, so good varieties should be selected when planting.

2. Increase the application of organic fertilizer

When applying base fertilizer, we should pay attention to increase the content of organic fertilizer, especially the content of phosphorus and potassium fertilizer, and pay attention to the amount of nitrogen fertilizer, lest the seedlings absorb too much nitrogen, causing the leaves to be thick green, and the aboveground parts of mangosteen are too late. It is very easy to die seedlings in case of low temperature, and it will also delay flower bud differentiation and fruiting, and yield to yield.

3. Pay attention to low temperature

We should pay attention to the weather change at any time and take precautions in advance before the coming of low temperature and cold. We can cover it with flat cover, cover it with grass curtain at night, and uncover the film in time after the weather is fine or warm up, so as to avoid green and dead seedlings.

4. Replanting in time

When planting, some insurance seedlings should be reserved for diseases and insect pests or man-made damage. when the plants suffer or die, the diseased seedlings and dead seedlings should be pulled out in time, and the root soil should be removed and replanted in time.

5. Spray prevention and cure

Once the seedlings are injured, immediately spray chemicals and growth regulators to promote plant recovery as soon as possible, enhance disease resistance, so as to avoid bacterial infection.

The above is the introduction of the preventive measures of strawberry green and dead seedlings, hope to help you, want to know more related knowledge, please pay attention to us.