The latest matters needing attention in the management of shed in spring

With the rise of temperature in spring, the night temperature in the shed is also constantly increasing. At this time, if the shed management is slightly improper, there will be many problems, which is extremely unfavorable to crop growth. Therefore, spring shed management must pay attention to the following points, along with Xiaobian together to understand it.

1, anti-excessive growth

As the temperature rises, day and night shrink, plant crops are easy to appear excessive growth phenomenon, especially solanaceous vegetables are the most obvious, once excessive growth, easy to drop flowers and fruits, but also easy to produce abnormal fruit. To prevent excessive growth, first of all, to control the seedling age, timely planting, so as not to miss the best planting time, in the planting 15-30 days before the soil preparation should be done fertilization light, at the same time dig a good drainage ditch, in order to drain irrigation, in the rainy season can effectively drain moisture, help slow down. When excessive growth has occurred, timely measures should be taken to minimize the loss. First, part of the root system should be cut off in combination with intertillage and weeding to weaken the absorption capacity of the root system and control the growth of the above-ground plants. However, it is not advisable to cut off the main root. At the same time, plant growth regulators should be used to irrigate the root to control excessive growth.

2. Prevent cold in late spring

The most serious harm in spring is simple, it has a great impact on crops, so after the seedlings are fully seedlings, they should be ventilated in time, gradually increase the amount of ventilation as the temperature rises, improve the cold resistance of seedlings, and increase the cold resistance of seedlings. Irrigation in time before the arrival of cold in late spring can reduce the degree of freezing injury, or spray water on the surface of plants with sprayers to increase air humidity, which can delay freezing injury. Before the cold snap comes, you can set up a coal stove in the shed or use electric heaters and warming blocks for temporary heating to increase the temperature in the shed and prevent freezing damage, but once you pay attention to ventilation to avoid gas poisoning.

3. Prevention of hormone poisoning

After the temperature rises, the concentration of flower and melon should be reduced accordingly. If the concentration is too high, it will affect the flower bud differentiation of the plant, causing leaf shrinkage, deformity and abnormal fruit. When hormone poisoning occurs, a large amount of water is sprayed first, which can wash away the liquid medicine on the surface of the plant, dilute the concentration of the liquid medicine, and spray growth regulators at the same time to enhance the recovery ability and quickly restore the normal growth of the plant. After that, topdressing and loosening light are carried out to enhance the recovery ability of the plant itself and remove the phytotoxicity. At the same time, the corresponding mitigation agent is sprayed against the agent causing the phytotoxicity.

4. Prevention and control of pests and diseases

After the temperature rises, the occurrence of diseases and insect pests is also relatively common. Measures of prevention and comprehensive control should be taken to control the spread of diseases and insect pests. Common diseases of vegetables should be sprayed in time for prevention and control, as well as insect pests. After entering April, high temperature and strong light, crops are prone to sunburn, so measures can be taken to pluck leaves and wipe branches, but not too much at one time, spraying foliar fertilizer to promote flowering and fruit setting and prevent physiological diseases.

The above is the introduction of spring shed management precautions, I hope to help you, want to know more about the relevant knowledge, please pay attention to us.