What Is Spring Vegetable? A Complete Guide to Spring Vegetable
Spring vegetable is a leafy vegetable of the lettuce genus. Spring vegetable has many leaves, which make up a large proportion, and fewer stems. In areas such as Beijing and Tianjin, starting from the Beginning of Spring, many households buy spring vegetable to eat, and this custom has been passed down to this day.
Spring vegetable transplanting methods
1. Hardening off seedlings: To help the seedlings adapt to the outside environment, harden them off according to the weather forecast, generally 7 days before transplanting. For seedlings raised in a greenhouse, when the nighttime temperature is above 8°C, ventilate to harden them off, and both the greenhouse film and the inner film can be ventilated on all sides; when the nighttime temperature is below 8°C, the greenhouse film should be kept closed while the inner film may be left off; when the temperature is below 3°C, manage them as winter seedlings.
2. Spraying: 3 days before transplanting the seedlings, apply the send-off pesticide, using Shajunwang at 1 packet per 100 jin of water or Kebingwei at 1 packet per 30 jin of water; at the same time, add 1 packet of Lesiben per 30 jin to kill aphids. To help them resume growth after planting and shorten the recovery period, 2 days before transplanting spray Genwang at 1 packet per 40 jin of water (Genwang is rooting powder, which must be dissolved in alcohol or 50-proof liquor before adding water). Whether spraying pesticide or topdressing fertilizer, spray the front and back of the leaves and the base of the plant, and it is best to do this around 10 a.m. on a sunny day.
3. Transplanting into a greenhouse or open field: Water thoroughly on the afternoon of the day before transplanting the seedlings, and choose several consecutive sunny days for transplanting. Generally, transplanting on April 6 is relatively safe; if transplanting into the open field in mid-March, double-film covering should be used, and it is best to transplant seedlings raised in nutrient pots. Water and cover with film as you transplant (for transplanting into the open field, in addition to covering with microfilm, also arch another layer of medium film); you may also use 30% decomposed human and livestock manure water plus 20% Jinggangmycin (1 packet of Jinggangmycin per 800 jin of water, that is, first mix 1 packet of Jinggangmycin with 16 wine cups of water, then add 1 cup to each bucket of manure water) to prevent the occurrence of damping-off and southern blight.