Nutrient block seedlings are natural, nutritious, economical and useable, and have the advantages of disease prevention, disease control, good seedlings, strong seedlings, improved soil fertility, no seedlings, no seedlings after planting, and the like, which can be called the third seedling technical revolution. In Yangshuo, it is labor-saving, inexpensive, and easily accepted by vegetable farmers. After several years of practice, the eggplant seedlings in Yangshuo should have the following technical points.
Yangshuo is built. Before the broadcast, the leeward sunny plot was selected, and the width was 1.7 meters long, 10 meters long, and 25 centimeters deep. The bottom is leveled with water, filled with concrete, and a wind barrier is set for every 2 Yangshuo.
Pendulum block expansion. Before sowing, lay a layer of plastic film on the bottom of the bowl, select the large-hole-thickness nutritious block for placement, and leave a 1 cm gap between the block and the block. Spray the small water on the block first to make the surface wet. Then use a small water stream to slowly water from the edge of the bowl. Diffuse the block. After the water is sucked dry, pour water again until the nutrient block is completely foamed and swelled. Use iron wire. Without the hard core, place 8-10 hours for sowing.
Soak germination. First soak in seeds in warm water at 30°C for 15 minutes, then add hot water at 55°C. Stir constantly. When the water temperature drops to 30°C, soak again for 8 hours. Then rinse with clean water for 2-3 times and wash off seed coat mucus. . Remove the water from the seed epidermis by drying, and perform the temperature-warming and germination, that is, 16 hours at 30°C, 8 hours at 20°C, and sowing when 70% of seeds break buds.
Fine sowing. Spray a little water on the nutrition block with a watering can to make the surface moist. On or about February 25, when the seeds are sown on a sunny day, they will sow the seeds of the buds in the holes, one for each hole, and then sprinkle 1.5 centimeters of fluvo-aquic soil. Press it lightly, cover the film immediately after each shot, seal it tightly with mud, and quickly increase the temperature to 30°C. Gradually cover the grasshoppers in the evening, and after the sunrise, open the haystacks and keep it open.
Seedling management. Debride the grasshoppers every day to remove dirt and impurities from the membrane. When the cotyledon is unfolded until two true leaves are exposed, the temperature is released at 28°C during the daytime, kept at 25°C-26°C during the day and 10°C-14°C at night. After the two leaves have been flattened, they are released at 26°C during the day and 10°C-12°C during the night. When 3-4 leaves, the outside air temperature is already high. Gradually increase the air volume to prevent the high-temperature firing of seedlings during the day and prevent freezing injury at night. Seedlings generally do not water, but found that blocks dry, when the seedlings are thick, use a small amount of water poured from the bottom of the bed to make the block from the bottom up and absorb water, avoid plunging water for a long time. Seedlings in the event of cloudy days, during the day also have to uncover the grasshoppers, even after the cloudy days turn fine, at noon to pay attention to back shading. Ventilation and hardening of seedlings shall be carried out 7 days before planting. Four days before planting, the seedlings may be removed in accordance with weather conditions. When 4-5 leaves are planted, they can be transplanted to Daejeon after April 15.
Veress Needle,Pneumoperitoneum Needle,Veress Needle Insertion,Disposable Veress Needle
Qingdao DMD Medical Technology Co., LTD , https://www.dmd-medical.com