How to manage vegetables after planting in spring
Vegetables are planted after the Spring Festival. Because the weather is still very cold during this period of time, the temperature in the shed is low, and the humidity is high. Vegetable seedlings that have just been planted often grow poorly and have many diseases in this environment. Therefore, we must strengthen the management of newly planted vegetable seedlings.
Strengthen heat preservation to prevent "cold damage". After the Spring Festival, the temperature in the shed is still very low, and the vegetable seedlings that have just been planted have poor cold resistance. Therefore, it is necessary to strengthen heat preservation measures to prevent cold damage. In addition to the usual thermal insulation measures such as covering the quilt at night, covering with floating film, and increasing sunlight during the day, a windshield film must be set at the air outlet to prevent cold wind from popping on the seedlings.
Use fertilizer scientifically to prevent "burning seedlings". Before planting vegetables, apply chicken manure and other organic fertilizers to be decomposed to prevent the raw chicken manure from burning seedlings. If you find that there is a strong smell of ammonia in the shed, you should ventilate immediately. At the same time, vegetable farmers must pay attention to avoid applying fertilizers with too high nitrogen content when topdressing and extracting seedling fertilizers, so as to prevent the ammonia volatilized from such fertilizers from damaging the vegetables when the ventilation in the shed is restricted. In addition, pay attention to the combined use of biological bacterial fertilizers, because biological bacterial fertilizers can improve soil structure, improve soil fertility, and inhibit soil-borne diseases, and the effect of rooting and rooting is ******. For example, 25-30 kilograms of high-quality biological fertilizer can be applied per mu each time, which can obviously promote the growth and development of vegetable roots.
Water rationally to prevent "root damage". Watering should generally be carried out before 10 o'clock in the morning on a sunny day, in order to have sufficient time for temperature raising and dehumidification. When watering, pay attention to not too much at a time, take the water to the head of the border as the degree, and avoid flooding with flooding. The shed temperature should be increased by 2-3°C within 2 days after watering to promote the rise of ground temperature. Where conditions permit, use micro irrigation only.
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