Fertilization management: The principles of "balanced fertilization, adequate base fertilizer application, organic fertilizer application, and reasonable fertilizer application" should be followed, and the fertilization management of spring vegetables should be well managed. According to the fertility of the soil and the law of crop growth and fertilizer requirements, the implementation of balanced fertilization, should not be a single or excessive use of nitrogen fertilizer, should be a reasonable use of nitrogen, phosphorus, potash fertilizer, a reasonable top dressing, top dressing with watering, should be selected sunny.
Moisture management: Spring is a season in which vegetables are pests and diseases. It is important to control water and pests to control pests and diseases. In the management of water, we should follow the principle of "just in time, not less, rather less."
Reasonable ventilation: more diseases occur in spring due to the high humidity in the shed. It can be used to reduce the humidity in the shed to prevent the occurrence of diseases. The correct method of air release is to open the air outlet immediately after the grasshopper has been uncovered for air release. Pay attention to small winds in order to discharge the moisture in the shed. Then close the air outlet, wait until the temperature in the shed has risen to 30°C to restart the air release, and start the air release from small to large.
Pest control: The spring is a season in which pests and diseases are prone to multiple occurrences and proneness. Good prevention and control of pests and diseases is of great significance for increasing production and income. In the prevention and control of pests and diseases in spring vegetables, we must implement the principle of “prevention-oriented, comprehensive prevention and controlâ€, formulate comprehensive prevention and technical measures, and adopt technologies such as agricultural control, ecological control, biological control, physical control, and chemical prevention and control.
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