Greenhouse celery planted after planting

 

  After the celery is planted, the new high-fat membrane insulation is sprayed in time to improve the survival rate. If it is cloudy at noon, it will be shaded for 2-3 days at noon, and it can be watered 2-3 times after planting. After slow seedlings, deep tillage is appropriate for seedlings. When the minimum temperature drops to 5 °C, pay attention to heat preservation at night, and cool down and damp during the day to prevent the plants from growing and getting sick. The daytime temperature is kept at 20 °C -25 °C and 10 °C at night. In the middle of November, the straw curtain should be covered with heat preservation. The wind should be released for more than 2 hours every day. On cloudy days, pay attention to the wind and humidity, and the air release time should be shortened. When the plant grows to a height of 25-30 cm, it can be fertilized once, urea is applied, and water is immediately applied. After the plant enters a period of vigorous growth, it is not necessary to lack water. It should be poured with water for about 7-10 days, once with water and topdressing. Watering is usually carried out in the sunny morning. And spraying the plants with strong stems and stalks to make the seedlings flourish, the stems are thick, the leaves are thick, and the yield is high. At the same time, it is necessary to heat up the greenhouse to make the ground temperature rise rapidly, and the wind is discharged at noon. During the vigorous growth period, watering, topdressing, heat preservation and organic fertilizer should be applied in time to ensure the supply of trace elements. In the middle and late growth stages, potassium dihydrogen phosphate + plant electronic fertilizer can be sprayed on the foliar surface. And pay attention to the prevention and control of pests and diseases, and timely use targeted drugs for effective prevention and treatment.