|
Heavy snow todayToday, heavy snow is the 21st solar term in the 24 solar terms and the third solar term in winter.
Heavy snow solar term greenhouse management 1. Strengthen plant adjustment and fruit management. Remove the old, yellow and diseased leaves of the side branches and the lower part of the plant in time to enhance ventilation. For tomatoes cultivated over winter and long season, falling vine or continuous head change should be adopted to extend the fruiting period of the plants. 2, scientific watering Watering should be carried out in the sunny morning, in the cloudy, snowy days do not water. Using drip irrigation, micro - spray or under - film irrigation is beneficial to improve the ground temperature and water saving. To raise the temperature of irrigation water, a reservoir or water storage tank is set in the greenhouse. When watering, the amount of water should not be too large each time, and the principle of water management should be "small water frequently watering" and "see dry see wet". 3, reasonable fertilization Topdressing should be carried out according to the characteristics of crop fertilizer demand and plant growth, so as to achieve the balance of nitrogen, phosphorus, potassium and trace elements fertilization. Special attention should be paid to the application of potash fertilizer, which can enhance the cold resistance of plants. 4. Harvest in time Tomatoes, such as melons and fruits in the optimal maturity of the fruit harvest in time to prevent overgrowth and affect the continued fruit of the plant. Try to choose a sunny morning harvest, picking and storage should be handled with care.
5, do a good job of snow and cloudy day management Clear the snow on the shed in time to avoid snow melting on the grass mat or insulation cover to reduce its insulation effect. After the stop of snow and cloudy days, under the premise of ensuring that the temperature in the greenhouse is above 12℃, the grass tomakomai can be lifted around noon, so that the crops accept scattered light. |
