During the vernal equinox season, the cold has passed and the temperature has risen rapidly. The average daily temperature in North China has risen above 10°C and has entered a bright spring. The "Equinox Air" explains that it has been defrosted to the busy season of planting, planting and managing vegetables.
Spring greenhouse tomatoes, peppers, eggplant, cucumber and other thermophilic vegetables colonization: first of all to pay attention to weather changes, grab the "cold tail warmer" timing of the appropriate planting. Tomatoes, eggplants, and other solanaceous fruit crops can be colonized at a temperature of 10 cm above 13°C, whereas cucumbers, wax gourds, and other melons can be colonized when the ground temperature of 10 cm is stable above 15°C. In the Beijing plain area generally in late March, in case of large seedlings and the temperature is still low, a multi-layer covering method can be adopted to increase the temperature. Secondly, we must clean our pastoral gardens, remove the former stubbles, rotten leaves and weeds in time, and transport them to the ground for centralized treatment of high-temperature composting and other harmless treatments. We must also pay attention to the application of organic fertilizer, fine soil preparation, and reasonable close planting.
Solar greenhouse tomato, cucumber and other fruits and vegetables management: adjust the appropriate temperature and humidity: during the day 23 °C -30 °C, about 15 °C at night; appropriate reduction of cloudy days, strengthen ventilation. Increase the light: Wash the film regularly to increase the light transmittance. Management of water and fertilizer science, plant sorting: timely vines, pruning and hiccups to remove the lower yellow leaves and old leaves. We must also do a good job of preventing and controlling diseases and insect pests. Cucumbers should focus on the prevention of diseases such as downy mildew, white powder, and keratinocytes, and tomatoes should be protected against leaf mold, late-vegetation and other diseases. Strengthen the control of insect pests such as locusts, whiteflies, leafminers and bollworms.
Colonization of Brassica vegetables such as cabbage, cauliflower, lettuce, lettuce, etc.: Do a good job of low-temperature “cooking†5-7 days before planting, and in the Beijing plain area generally in late March, use the method of covering the mulch “innateâ€. increase temperature.
Seeding of cherry radish, water radish, garland chrysanthemum, fennel, spinach and other leafy and rhizome vegetables: To improve the quality of soil preparation, apply finely crushed organic fertilizer with good quality as the base fertilizer, sowing or sowing seeding method, pouring sole water, planting After covering the film, it will be withdrawn after 70% emergence. It is also possible to increase the temperature by covering the agricultural film with a bamboo arbour, so that it can be sown 10-15 days earlier.
The management of exposed winter vegetables: spinach, spring onions, leeks and other overwintering root leeks must be cultivated in time to remove dead leaves, topdressing with comminuted organic fertilizer, and timely watering in late March. Leeks use biological pesticides or safe pesticides to control earthworms.
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