Ziru network lightning news, 8 february, issued the “technical guidance on the management of vegetable production in the spring of the city of taian 2025” (hereinafter referred to as the guidance) on 6 february. The guidance guides farmers in the management of spring vegetable production in the solar greenhouses, early spring archer vegetable management techniques, spring field vegetable management techniques and disaster weather response measures。
Vegetable production in the spring is faced with complex and variable weather conditions and multiplicity of mouths. In winter, vegetables sprung into production, in winter springs into harvests, in plastic sheds began to grow and in winter springs the vegetables gradually recovered. Farmers need to prevent adverse weather conditions such as “spring cold” and drought。
The guidance indicates that the main varieties of sun-smooth vegetables in the spring are tomatoes, cucumbers, water pickles, etc. These vegetables are currently in boom, and farmers should be managed in ways that improve the regulation of temperature, light, water fertilizer, etc., to prevent disease and pests, to extend the harvest period and to increase production. Among them, for temperature management, the temperature control is dominated by ventilation, cold tides or “cooling” weather, which should be accompanied by a buffer film at the door and near the front of the house, below the upper vents, with plastic film covered outside the temperature protection, or with temporary warming using heat enhancement blocks, heaters, etc. In the management of humidity, farmers are required to minimize indoor humidity, with ventilation at the top for a short period of time, not exceeding 20 minutes each, when external temperatures are low; the option of ventilation between 12 and 13 noon for 10 and 20 minutes on consecutive days; and irrigation by dripping or microjet, whenever possible. In light management, farmers should be aware of changes in external temperature. As the temperature rises, farmers should, as soon as possible, lift their caps, extend the time of light, and enhance the light with a reflection film on the rear wall of the greenhouse. After march, solar-morbid pests will become widespread, so farmers will have to focus on prevention, integrated treatment and control of the occurrence and spread of pests。
Early spring archer vegetables are mainly warm vegetables, and farmers are managed to capture the three key elements of temperature, humidity and fattening. In this case, the temperature in the arch shed should not exceed 30°c when controlling the temperature, with attention to timely ventilation and cooling. The temperature in the night shed is as high as 15 to 20°c and is ventilated throughout the night at a minimum temperature above 15°c. As the temperature rises, the vegetables of the shed move into a rapid and long-term life, requiring sufficient soil moisture to meet their growing needs, but the air moisture in the shed should not be too high to be susceptible to disease and thus to increased ventilation and reduced humidity. Following the vegetative season, farmers are required to fertilize properly in accordance with their long-term needs, at a certain distance from the roots of the plant (in the middle of the platinum), usually with 10-15 kg urea per acre, 5-10 kg potassium sulfate, then water and ventilation. In addition, small- and medium-sized archer vegetables need to be prepared for pre-detonation, planting during safe seasons, planting and heat protection。
In the case of spring field vegetables, farmers should be aware of the need for timely planting, temperature protection, promotion of the roots of winter vegetables, and early clearing of vegetable fields and weeds, and, depending on weather conditions, proper fattening, watering, seeding and early return to the market. In the spring, especially after late april, which is a multi-prevalence and ready-to-prevalence phase, sound management of vegetable fields should be based on a “preventive and integrated approach” approach, using techniques such as agricultural, biological, physical and chemical control, and the development of integrated management techniques to ensure that pesticide residues do not exceed standards and achieve high quality production。
The spring winds, “spring cold” and drought weather have a certain impact on agricultural production, and farmers need to focus on weather forecasting and improve prevention and management for different weather types. In response to the “spring-down” weather, farmers need to increase their cold exercise and improve their resistance to cold. When the seedlings are ready, they are ventilated in a timely manner and are gradually increased as the weather warms, so that the seedlings are made at low temperatures and their ability to adapt to the cold. At the same time, water can be poured in due course, or sprayed with aerosols on the plant surface to mitigate the freezing effects, which can also be reduced or avoided effectively through temporary warming and fumigation. In response to spring and drought, farmers choose drought-resistant vegetable varieties. During the early stages of crop transfer and early seeding of crops, water is to be poured into the pine fields in a timely manner, cutting off soil surface catheters, inhibiting soil evaporation and enhancing the resilience of vegetables to drought. At the same time, the timely resupply of fast-acting fertilizers, which can take place early and late, to be applied with diligence and in combination with the application of leaf fertilizers, promotes the growth of plants and enhances their own resilience。
Lightning journalist, wang xian
