Preventive measures for dead seedlings of vegetables

In the process of production and cultivation, the dead seedlings of vegetables often occur, which seriously affect the growth of vegetables, and there are many reasons for the dead seedlings of vegetables, so in order to deal with the dead seedlings of vegetables, what should we do in the process of cultivation? Come and have a look with the editor.

1. Bacterial fertilizer to control diseases and insect pests

Before the cultivation of vegetables, the soil preparation of greenhouse and vegetable garden should be carried out first. in recent years, the occurrence of soil-borne diseases is becoming more and more serious, and in order to prevent the occurrence of diseases, besides ploughing the land and applying bacterial fertilizer and medicament to the root at the same time, it is also necessary to take the method of hole application or bacterial fertilizer to promote root disease prevention. At the beginning of vegetable planting, underground pests like to gnaw on the roots, causing the aboveground seedlings to wither and die seriously, while biological fertilizer can not only provide growth fertility for vegetables, but also add beneficial bacteria to prevent soil-borne diseases. at the same time, it can also improve the stress resistance and lodging resistance of vegetables.

2. Organic fertilizer to prevent fertilizer damage.

Excessive or concentrated application of chemical fertilizer, or single application of a certain chemical fertilizer, will greatly increase the occurrence of fertilizer damage, resulting in burning roots and seedlings, resulting in dead seedlings and dead plants of vegetables. Therefore, in order to prevent the occurrence of fertilizer damage, it is necessary to reduce the amount of chemical fertilizer and increase the application of biological bacterial fertilizer and organic fertilizer. However, it should be noted that organic fertilizer must be warned to deal with rotten ones, otherwise it will also cause fertilizer damage. Especially when using farm manure such as chicken manure and duck manure as base fertilizer, it must go through the high temperature shed in advance to make it fully mature before use.

3. Planting depth

The phenomenon of dead seedlings of vegetables occurs from time to time because of diseases, which is mainly due to stem rot and blight, which often occurs after planting, which has a lot to do with the depth of planting. The vegetable is planted too deep, the stem base of the seedling is buried in the soil, the initial stage is less and too much, the external temperature is too high, and the water evaporates quickly, which leads to the high temperature at the base of the stem and the destruction of the epidermis at the base of the stem, which creates favorable conditions for the pathogen. Therefore, when planting vegetables, we must pay attention to the appropriate depth, and the best solution is ridging cultivation.

4. Watering should be moderate.

Excessive watering will lead to root retting, and water temperature also has a direct effect on root physiological activity. if the difference between soil temperature and water temperature is more than 5 degrees, it will cause a sudden change in soil temperature and damage the root system. on the contrary, it will affect the root system to absorb water, resulting in physiological drought. Therefore, it is best to irrigate when the water temperature is close to the soil temperature, and it is best to store the water indoors for a period of time in autumn and winter, or add warm water to raise the water temperature to 15-20 degrees before watering. Watering time is usually after 10:00 and 4 p.m., keep in mind that you can't water at night, which will increase the risk of disease infection and freezing injury.

The above is the introduction of preventive measures for dead vegetable seedlings. I hope it can help you. If you want to know more about it, please follow us.