Yudian is a large vegetable cultivation town in Guangshui City. Due to the large yield and high economic value of tomatoes in greenhouses, it is the primary choice for many vegetable farmers, and the sowing and breeding of tomatoes is the key to high yield. So in the technology entry, I explained to the demonstration households the sowing and breeding of tomatoes. Usually sowed in early January, if you add a small arch in the plastic greenhouse, covering the film, the sowing date can be appropriately advanced. Seeds are sown on sunny days for 2 to 3 days before soaking or chemical treatment, in order to improve the germination potential and make the buds robust and orderly. Carry out 50% carbendazim 500 times soaking for 0.5 hours, rinse with water, then soak in warm water for 5 hours, then soak it for 5 hours in 10% trisodium phosphate solution, remove and rinse with water. Germination. When germination, the seeds with sufficient moisture are loaded into a gauze bag, covered with a wet towel, placed in a 25-30°C environment (preferably using an oven) to germinate, and rinsed with water at the corresponding temperature for 1-2 times per day. After 2-3 days, when 50% of the seeds are white, they can be sown. It is recommended to use seedlings for seedlings. The nutritious soil for seedling raising can be prepared by adding 3 fertile pastoral soils and 1 full-fermented ring fertilizer (mashing, mixing after sieving), adding 3 kg of superphosphate per cubic meter of nutrient soil, and phosphoric acid. Potassium dihydrogen phosphate 0.25kg, 95% hymexazol 4g, 50% phoxim and saute gluten bran 0.25kg in a ratio of 1:200, and mix thoroughly until ready for use. The nutrient soil used must be fully decomposed and subjected to strict disinfection and insecticidal treatment. Put the prepared nutritious soil into the plug (or nutrition cup), discharge it in the greenhouse, and fill enough water. Seeds that have budding seeds are sown in each hole (or each nutrition cup) with a cover soil of 0.8 cm. The seedbed temperature is maintained at 25-28°C. If the temperature in the greenhouse is not enough, heating equipment or a middle shed or a small shed can be used. Warming. The entire seedling stage must pay attention to controlling the air humidity and soil moisture in the seedbed. It is recommended to spray the seedlings several times with the agents such as Dakkonin, Antivirus, or Jinlei to prevent seedling disease such as blight and damping-off. Before planting, use Aktai to spray the entire plant once to prevent worms and whitefly. In general, greenhouses are covered with small sheds. After Miao Qi, small arch sheds should be ventilated in time. Cultivation techniques for greenhouses in winter and spring in greenhouses should be irrigated according to soil moisture. When watering, use small water and do not wash down the seedlings. . Timely seedlings, strong and weak, too high or too short seedlings to go to keep the seedling height basically the same. In mid-March of next year, transplanted seedlings must meet the criteria for strong seedlings: plant height 20-25cm, short internodes, thick stalks, consistent from top to bottom; 7-8 true leaves, long palm-shaped leaves, dense leaves Green and thick, no spots; flower buds, seedling age 50 days, which is the basis of premature. Generally, when the ground temperature reaches 10°C or more, the average temperature in the shed is stable at 5-8°C, and transplanting can be carried out. When transplanting, the plant should be poured with dark water (watering in the planting hole first, and then transplanting when the water just penetrates into the soil).
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