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Anonymous users2024-01-24There are two varieties of lettuce, loose-leaf lettuce and bulb lettuce. Spring and summer are suitable for planting loose leaf lettuce, because it is easy to dissipate heat, it can be harvested in about 40 days of planting, and it is suitable for planting ball lettuce in autumn and winter, and it can be harvested after 50 days of planting. The light requirements are not very strict, but sufficient light can accelerate the development of plants, and in long days, lettuce development can be accelerated with increasing temperature.
Potting: Larger rectangular plastic pots can be selected.
Soil: Lettuce is suitable for slightly acidic soils, planted in soil rich in organic matter, with strong water retention, fertility retention and high yield.
Pest control: The main diseases and pests of lettuce are downy mildew, soft rot and sclerotinia sclerotinia disease. Among them, sclerotinia and soft rot are more harmful, and they are easy to develop in warm and humid conditions.
After the onset of the disease, agricultural streptomycin and dyceum can be sprayed. In the season of high temperature and humidity, chlorothalonil is sprayed every 5-7 days for the purpose of prevention.
Daily maintenance. Lettuce can be propagated by sowing, when the temperature is below 25 degrees Celsius, it can be sown directly, and when the temperature is above 25 degrees Celsius, the seeds can be germinated. Soak the seeds in room temperature water for 6 hours, then wrap them in a damp cloth and refrigerate them in the refrigerator for a day, then place them in a cool place until 80% of the seeds are exposed before sowing.
The seeds are evenly spread on top of the soil, then covered with a layer of centimeter-thick soil, watered thoroughly, and the seedlings can emerge in 5-7 days at a temperature of 20 degrees Celsius, and can be planted when the seedlings have grown 2-3 true leaves.
Lettuce needs more water during the leaf growth period, and insufficient water will affect the taste of vegetables, so watering should be frequent, but pay attention not to accumulate water in the pot, otherwise it is easy to rot. Compound organic fertilizer can be applied once a week during the growing season, and fertilization and watering can be stopped 10 days before harvesting. When cultivating at home, you can use the leaves to eat and pick at any time to keep the leaves fresh.
Prepare the seeds, be sure to look at the later production date when buying the seeds, and don't buy them if they have passed, because the germination rate of expired seeds is very low. >>>More
Cream lettuce prefers a cold climate, with a minimum temperature of 4 for seed germination, which is a longer time. The optimal temperature for germination is 15 20, germination in 3 4 days, and germination above 30 is blocked. Therefore, when sowing seeds in summer, low temperature treatment must be carried out to promote the enzyme activity and other substances in the seeds. >>>More
Prepare the seeds, and be sure to look at them when you buy seeds. >>>More
Usually raise seedlings first, lettuce seeds are too small and too light, need to be accompanied by fine sand or other crushed soil, put it in a pot and stir evenly, and then sprinkle it on the soil, and then cover it with a layer of thin soil centimeters, a thin layer, 15-20 degrees for about 3-5 days of germination when the temperature is higher than 25 degrees is difficult to germinate, when planting lettuce in summer, you need to germinate, soak the lettuce seeds for 1 night, and then wrap them in wet gauze, put them in the refrigerator (about 5 degrees), about half of the lettuce seeds are white and then sown.
Seedlings of peppers.
It can be sown or seeded on demand for seedling transplanting. It is best to sterilize the seeds, first soak them in warm water at about 50 for 15 minutes, then soak them in potassium permanganate solution for about 20 minutes, and sow them with clean water. >>>More