Planting techniques of Cherry Tomato in Solar greenhouse

Cherry tomato has high ornamental value and rich nutritional value; it can be used as a vegetable on the table and eaten as fruit on a fruit plate. Suitable for sour and sweet, unique flavor, deeply loved by people. At present, cherry tomato is the most popular tomato variety, which can be supplied all the year round. It weighs about 14 grams per fruit, contains as high as 9.8 degrees sugar, has a lot of flesh, is moderately sour and sweet, has a crisp skin, good taste and strong fruiting power. A flower ear can bear up to 60 fruits, and a double-stem pruning plant can bear more than 500 fruits. Its cultivation techniques are as follows: 1. Soil selection and cultivation stubble (1) soil selection. It is appropriate to use loam and clay soil with good water conservation, solar greenhouse with sufficient sunshine and good ventilation. (2) arrangement of stubble. Can be produced annually. It is generally cultivated in spring in February, planted in mid-late March, and picked in mid-late May. The seedlings were cultivated in autumn in July, planted in September and harvested in November. two。 Seedling (1) seed disinfection and seed soaking to accelerate germination. Scald the seeds with 50 ℃ 55 ℃ water and keep stirring until the water temperature is 25 ℃ and then soak for 8 hours. Wrap the seeds in a wet cloth, put them in 27 ℃ and 30 mol water to promote germination, and rinse once a day. Seeds can be sown after whitening. (2) preparation of nutritious soil. 40% rotten livestock dung or peat soil, 40% day garden soil, 10% large dung noodles, 10% slag, evenly sifted, 1 Mel 2kg of calcium superphosphate per cubic meter, and the nutrient soil can be filled into a nutrition bowl. 3. The sowing amount per mu is 30m / mu and 45g / mu, and the sowing capacity is 10m / m ~ 15g per square meter of seeding bed. Spread 8 cm thick nutritious soil in the seeding bed, fill with enough bottom water, and then add 15 grams of fine soil with 10 grams of five-generation mixture per square meter (40% pentachloronitrobenzene and 70% zinc 5 grams). After fully mixing well, sprinkle 1x3 as the subsoil before sowing, cover the soil with 2x3 after sowing, cover the soil with 1cm after sowing, and cover with plastic film. Remove the plastic film when 60% of the seeds emerge. When the seedlings grow two true leaves, they can be transplanted into a nutrition bowl. 4. Seedling management (1) temperature management. Before emergence, 30 ℃ in daytime and 24 ℃ at night are favorable for seedling emergence. It is suitable for 25 ℃ in daytime and 17 ℃-18 ℃ at night after emergence. (2) illumination at seedling stage. The nursery bed in winter and spring should choose the place with strong light. Summer seedlings should be ventilated to prevent overgrowth, noon light is too strong to properly shade, to prevent roasting seedlings. (3) Water management at seedling stage. Keep the soil moist after sowing and water thoroughly when transplanting seedlings. After the slow seedling, the topsoil is watered when it is dry, the soil moisture is maintained, and the air relative humidity is controlled between 60% and 70%. 5. Colonization (1) colonization time. Spring stubble can be planted in mid-early March, and the lowest soil temperature of 10 cm in solar greenhouse is above 15 ℃ and stabilized for 7 days. It should be planted in sunny morning in spring and cloudy or sunny afternoon in summer. (2) colonization method. It is better to plant in dark water. That is, first dig holes, pour enough bottom water, and then put the seedling belt soil into the planting depth to bury the soil. (3) planting density. Generally large row spacing of 100 cm, small line spacing of 60 cm, double-stem pruning plant spacing of about 50 cm, if single-stem pruning plant spacing of about 40 cm. 6. Manage (1) plant pruning after planting. Cherry tomatoes often use double-stem pruning, that is, one side branch is selected under the first inflorescence, and the other side branches are removed. When the lateral branch is removed, it should be removed in time when it grows to 6ml / 8cm. If the fork is too early, it is easy to cause premature senescence of the plant; if the fork is too late, it is easy to cause nutrition consumption, plant overgrowth, and affect fruit setting. During the annual cultivation in the solar greenhouse, the plant should drop the vine and disk the vine in time after growing tall, and get rid of the withered and old leaves below the fruiting branch in time. (2) temperature management. The key to planting in winter and spring is to prevent freezing and protect seedlings, and strive to slow down seedlings as soon as possible. after planting, there is no ventilation after 4 days, and the indoor temperature is maintained at 30 ℃ during the day and 18 ℃ at night. After slowing down the seedlings, the seedlings were 20 ℃ 25 ℃ during the day and 13 ℃ 15 min at night. When the first inflorescence begins to blossom, properly reduce the indoor temperature, control vegetative growth, promote reproductive growth, and coordinate the relationship between seedlings and fruits. Summer cultivation should pay attention to strengthen ventilation to prevent high temperature overgrowth. (3) before the ① results of fertilizer and water management. Results before planting, the planting water must be watered thoroughly, the slow seedling water and vine water should be properly replenished according to the soil and plant growth potential, and the water should be controlled as appropriate to strengthen the seedlings, especially when the seedlings are in full bloom, resulting in the phenomenon of falling flowers. the time of topdressing should be determined according to the growth of the plant and the application of base fertilizer. If the seedling growth is not good enough, it is necessary to apply nitrogen fertilizer properly, combined with a small amount of phosphorus and potassium fertilizer. After ② set the fruit. After the first ear is seated, the squatting seedlings should be finished in time, and the fruit should be watered and fertilized in time to promote fruit development. After that, topdressing should be done with phosphorus and potash fertilizer, and nitrogen fertilizer should be applied as little as possible. Watering and topdressing every 5 min 7 days depending on soil moisture and plant growth can also be properly supplemented with potassium dihydrogen phosphate, potassium treasure and other foliar fertilizers. Watering should be uniform, not suddenly large or small, to avoid sudden changes in soil dryness and humidity, otherwise there will be hollow fruit after fruit cracking. Dip flowers in ③. Planting in winter and spring must be dipped in flowers with sitting fruit. 7. 10% imidacloprid spray can be used to control aphids and whitefly, once every 7 days. Sudden fall disease, blight spray 25% Ruidui wettable powder 800m 900 times or 75% chlorothalonil wettable powder 600 times. Early blight can be treated with 45% chlorothalonil aerosol or 10% Chlorothalonil smoke agent, 200 Mel 250 grams each time.