Summer and autumn seasons are suitable for sowing lettuce, spinach, celery, garlic and other vegetables. Because of the high temperature, the seed germination rate is low, and low temperature germination is required.
1. Lettuce seed germination (1) Suspension method: The seed is soaked with fresh water (15 °C or so) or cold water for 5 hours, rinsed 2 or 3 times, remove the mucus impurities, remove it and dry it slightly, use a wet cloth bag. Pack, slightly dry, hang from the well water surface 10 to 30 cm, the temperature is maintained at 15 ° C, washed with well water 1 or 2 times a day, 3 to 4 days can be bud. (2) Cold storage method: After soaking the seeds for 24 hours, wash them thoroughly, wrap them in gauze, place them in a refrigerator or a refrigerator, and refrigerate at a temperature of 3 to 5 °C for 24 hours, then place them in a cool and ventilated place, and the seeds will germinate slowly. get on. When the young shoots are white, spread them in a cool, ventilated place with scattered light, and pay attention to water spray, moisturizing and anti-drying. After 2 to 3 days, when the germ is light green, it can be sown. (3) Sand mixing method: After soaking the seeds for 1 to 2 hours, mix with the moist fine sand, place them in the air-proof hole or the water tank, keep the cold and humid conditions, and germinate in 3 to 4 days. (4) growth regulator germination method: at 30 ~ 40 ° C high temperature, can also be soaked with 5 mg / liter of gibberellin solution for about 8 hours, then rinsed with tap water, you can sow, the germination rate can be increased to 80% about.
Second, the garlic seed germination (1) well water soaking method: the garlic cloves are soaked in the well water for 20 to 24 hours, drained and then sown, covered with a sunshade net to cool down. (2) Chaojiao method: 15 to 20 days before sowing, the garlic cloves are graded, then washed in clear water and removed, placed in the cellar or in a cool room. Place the garlic cloves on the ground or kneading surface, about 7 to 10 cm thick, and then cover the soil. The humidity of the cover soil is squeezed into a group by hand, and it is scattered to the ground. After 15 to 20 days of "wild garlic" treatment, most of the garlic cloves can be sown when they are white rooted, and they can be emerged 5 to 8 days after sowing.
Third, celery seed germination celery seeds thick, oily glands, and very small, germination at 25 ° C or more is very difficult, should be carried out after low temperature germination. Soak for 6 to 12 hours in cool well water, remove the floating seeds, add a little gibberellin or love to collect, etc., then dip for 12 hours, drain with gauze, hang into the well or put it in the refrigerator at 5 °C 1~ 3 days. The treated seeds are mixed with 5 times fine sand, placed in a place where light is seen at 15 to 18 ° C, and turned 1 or 2 times a day to keep the fine sand moist, and 5 to 7 days when 80% of the seeds are germinated, they can be sown; It can be soaked in water for 12 to 24 hours, suspended in the well 40 to 60 cm from the water surface, and 3 to 4 days when 80% of the seeds are germinated.
4. Spinach seed germination The seeds are immersed in cold water for about 12 hours, placed in a refrigerator freezer, refrigerated at 4 ° C for 24 hours, and then germinated at 20 ° C ~ 25 ° C. Sowing after 3 to 5 days of budding. It can also be immersed in 0.1% potassium nitrate solution for 16-20 hours to break the dormancy, and the seeds are sown after being exposed to white.
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