Recently, over-wintering cucumbers in solar greenhouses at individual demonstration sites in Ganzhou District have experienced premature aging due to poor management, especially the effects of low-temperature weather. For example, the melons and roots are weak and turn into red-brown, the capillary roots that absorb nutrients are reduced, and the plants grow. Reduced potential. To alleviate this symptom, there are the following suggestions. First, the use of rooting agents with severe symptoms is followed by irrigation, followed by foliar sprays of 2003, Biao, and other growth regulators. The second is to top-dressing fertilizers with water, and to select sunny water for wintering, you must use drip irrigation or under-membrane irrigation. The amount of water must be small, and the water in the reservoir must be used. Use drip irrigation to water once every 2-5 days, 3-6 square meters of water for each mu. Irrigation under the membrane should be done once every 7-10 days, and water per mu should be 10-15 square meters. Topdressing is done to balance NPK and trace elements. Because of the combination with watering, it is best to select liquid fertilizers that are easy to absorb and topdressing once every 10-15 days. Observe the growth of the crops and supplement the trace fertilizers with potassium dihydrogen phosphate or Rayleigh 2000, etc., and pay special attention to spraying on the leaves.
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