Lettuce planting techniques: how to sprout lettuce in summer and autumn?

How to sprout lettuce in summer and autumn? What methods can be used to promote sprouting? Please introduce the method of accelerating germination of summer and autumn lettuce can refer to the following list: the temperature range of lettuce seed germination is 5-25 ℃, and germination above 30 ℃ is blocked. The temperature of summer and autumn lettuce is higher when sowing, so the seeds can emerge early and evenly by low temperature treatment. In low temperature treatment, the seeds should be wrapped in gauze and soaked in well water at a water temperature lower than 25 ℃. Soak lettuce seeds for 5-6 hours, celery seeds for 10 hours, and then germinate at low temperature. There are three methods of sprouting, which can be selected according to the actual situation. First, the seeds were wrapped in gauze and frozen in-5 ℃ ~-3 ℃ cold storage for 24 hours, then the frozen seeds were left indoors to melt and germinate in 2 or 3 days. The second is to put the seeds wrapped in wet gauze in the fresh-keeping room of the refrigerator and keep them for 15-20 ℃, which can germinate in 3-5 days. Third, the seeds are wrapped in wet gauze and suspended in the well, 30 centimeters from the water surface of the well, which can germinate in 3 to 5 days. In the process of accelerating germination, you should replenish the water in time, wash the seeds at least once a day, and let the seeds see the light properly. Sowing after sprouting, sowing with grass curtain after sowing, if possible, you can build a 1-meter-high sunshade to facilitate seedling emergence. Click to get more lettuce planting techniques click to get more vegetable planting techniques