Tomato planting techniques: how to manage tomatoes in summer and autumn?

How to manage tomatoes in summer and autumn? Please introduce the method of summer and autumn tomato can refer to the following management methods: 1, seedbed management: using arch shed to raise seedlings, and covering the sunshade net. After sowing and dividing seedlings, sprinkle a layer of five-generation mixture or chlorothalonil and carbendazim soil to prevent and cure sudden collapse. After dividing seedlings, spraying 50 μ g / ml paclobutrazol solution per square meter with 80ml 100g paclobutrazol solution can prevent seedling overgrowth. After emergence, the temperature in the greenhouse was controlled at about 20 ℃ in the daytime and about 10 ℃ at night. The sunshade net should be covered during the day according to the weather conditions and should be removed in time sooner or later. Gradually remove the sunshade net and strengthen seedling training one week before planting. 2. Timely planting: turn the soil deeply before planting, apply sufficient basic fertilizer, and form a saddle-shaped high ridge of 50 cm and 70 cm. When the seedlings were about 40 days old, they were planted with about 4500 plants per mu, poured enough planting water and covered with plastic film. 3. Field management: before fruit setting, the temperature in the greenhouse was kept at 25 ℃ 30 ℃ during the day and 14 ℃ at night, with no or less watering. After fruit setting, the daytime temperature was kept at 20 ℃, and the night temperature was kept at about 15 ℃. Cut and prune in time, leave 3 ears of fruit. Leave 4 fruits per panicle, and spray with tomato spirit of 50 micrograms / ml to prevent falling flowers and fruits. After each ear was settled, it was combined with watering, and urea or compound fertilizer was applied to 15ml / mu and 20kg / mu, and then 2Mel potassium dihydrogen phosphate solution was sprayed step by step. Adding a reflective film in early December can increase the light in the greenhouse by 15% Mel 20%, increase the temperature in the greenhouse by about 20 ℃, and promote the expansion of tomato fruit. Increase production. The medicine was sprayed once every 2 Mel for 3 weeks to prevent the disease. Botrytis cinerea was controlled with Sukeling, and early blight, late blight and leaf mold were controlled with chlorothalonil, carbendazim, carbendazim and mancozeb. Click to get more tomato planting techniques click to get more vegetable planting techniques