Temperature and humidity adjustment
In the early stage of the temperature, the film around the shed should be rolled up to leave only the film on the top of the shed for large ventilation. Timely tillage and reduce soil moisture.
During the peak season, by mid-October, the outside temperature will drop rapidly. The average temperature of the month will drop to 20 °C. When the nighttime minimum temperature is lower than 15 °C, it is necessary to buckle the shed in time. Before covering the shed film, it can be sprayed more than 50%. Fungic WP 800 times to prevent downy mildew, do not cover the film at the beginning of the film, reasonable ventilation according to temperature changes, adjust the temperature inside the shed, the temperature in the shed should be maintained at 25-30 ° C during the day, 13-15 ° C at night. When the minimum temperature is below 13 °C, close the vents at night.
In the late stage of the melon, the outside temperature dropped sharply, and it is necessary to strengthen the insulation management. Cover the shed film, when the minimum temperature is lower than 12 °C at night, cover the grass on time; delay the release time during the day, increase the temperature; actively take insulation measures to keep the temperature at night and maximize the growth time of the cucumber. When the minimum temperature in the shed falls to 10 °C, the falling frame management can be adopted, that is, the bracket is removed, the stems are dropped, and the small arch shed is covered in the shed, and the grass raft is additionally covered at night to extend the harvesting period.
Fertilizer management
After planting, the seedlings should be prevented from growing, watering should be controlled, less water or small water should be poured, nitrogen fertilizer should be applied less, phosphorus or potassium fertilizer should be added, or the fertilizer should be applied 2-3 times with 0.2% potassium dihydrogen phosphate. A top dressing can be carried out before inserting the rack, 500 kg of manure per manure or 300 kg of decomposed manure. After applying top dressing, fill the water rack or hang the vine. In the melon period, the topdressing is generally 2-3 times, each time using 10 kg of urea or 500-750 kg of manure and manure, and applying with water. It can also be combined with anti-disease spray, spraying 0.2% urea and 0.2% potassium dihydrogen phosphate solution 2-3 times. When the temperature is high, the watering can be poured once every 4 days. When the temperature is low, it can be poured once every 5-6 days, and then poured in 7-8 days after the end of October. In November, if it is cloudy and the light is weak, it can be sprayed with 0.1% boric acid solution to prevent the action of melon.
(Wang Dixuan)
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