When the temperature rises, should vegetables be frozen in autumn? Strengthen the management of spring crop vegetables

When the temperature rises in spring, we should strengthen the late management of wintering stubble vegetables in solar greenhouse and extend the harvesting time.

Strengthen the management of spring crop vegetables

First, improve planting benefits mainly include the following points:

1, for the vegetables in the seedling period, grasp the seedling management, timely cultivation of seedlings, cultivation of age-appropriate seedlings.

2, spring greenhouse vegetables to reasonable arrangement of stubble, 15 to 20 days in advance to improve the temperature of the shed. Timely preparation and fertilization, pay attention to balanced fertilization, increase the application of organic fertilizer.

3, when the planting should be selected in the morning of a sunny day, in order to achieve early planting can take multi-layer covering technology, and do a good job of temporary warming preparation.

Second, strengthen the prevention and control of diseases and insect pests

As the temperature rises, the humidity in the greenhouse and plastic greenhouses increases correspondingly, and the plant vegetable production is prone to diseases and insect pests, so the prevention of diseases and insect pests should be done well.

1. Through reasonable fertilization, watering, timely pruning and branching, removing diseased old leaves and other measures, improve plant resistance, improve the growth environment, and prevent the occurrence of diseases and insect pests.

2. Physical control is carried out by hanging yellow boards in the shed and setting insect control nets. As far as possible, use a combination of physical and biological control methods for pest prevention. When necessary, high efficiency, low toxicity and low residue pollution-free pesticides should be selected, and the amount, frequency and safety interval should be strictly controlled. Chemical pesticides prohibited by the state on vegetables are strictly prohibited to ensure the quality and safety of agricultural products.

Third, we will prevent severe weather disasters

In spring, it is easy to have extreme disastrous weather such as overcast days, "reverse spring cold" and strong wind, which cause serious harm to vegetable production. It is necessary to pay attention to the weather forecast information in time and take effective measures before the disaster to prevent the occurrence of cold damage and freezing damage to vegetables.

1. Strengthen heat preservation. The "reverse spring cold" weather will cause serious harm to spring vegetable production, so we should do a good job of heat preservation and cold prevention. The shed film holes and cracks are blocked to avoid cold air blowing directly into the room from the vents to damage the plants.

2. Prevent wind disasters. In spring, gale weather is more likely to occur. Pay attention to weather changes in time and fix the covering in advance to prevent it from being lifted by the wind and causing damage to the shed.