How to grow tomatoes on the balcony?

How to grow tomatoes on the balcony? Please guide the balcony to plant tomatoes can refer to the following methods: soak tomato seeds in warm water for 20 minutes, and constantly stir, take out and soak in clean water for about 4 minutes for 5 hours, the amount of water is more than 5 times that of seeds. Then wrap it with a wet cloth and put it at a temperature of 28 to 30 ℃ for budding. It can also be mixed with 2 to 3 times of fine sand, covered with wet cloth in an earthen basin, and should be turned up and down once a day. The sand is not dry and does not need to be washed, and it can sprout smoothly within 2-3 days after keeping 25 ℃. The nutrient soil sown on the balcony can use 6 parts of sifted garden soil and 4 parts of rotten compost, and the garden soil is preferably onion and garlic stubble soil. Can also be mixed through their own family situation, such as plant ash, chicken and bird droppings, evenly mixed. In order to prevent seedling diseases, 65% of Dysen zinc wettable powder can be mixed with fine soil to make disinfectant soil, half of which is sprinkled on the surface of the irrigated basin soil, and the other half is sprinkled on the seeds that have been evenly sown, and then covered with 1 cm thick soil. After emergence, the temperature should be kept at 20-25 ℃ in the daytime and 10-12 ℃ at night. About 25 days after sowing, when the seedlings spread out 1-2 true leaves, the seedlings should be divided. If the sun is too strong at noon, cover the sun, such as newspaper or wood board. When the seedlings open new leaves, it marks that the seedlings have been slowed down, and then the balcony glass should be opened properly to cool down, but the cold wind should be prevented from blowing the seedlings directly, watering should be carried out at noon, a few water should be removed, and attention should be paid to ventilation and loosening soil after watering. It can be planted about 70 days after sowing. (1) make a good land and plant good seedlings. When planting in the balcony, it is still necessary to apply 500 grams of high-quality mature organic fertilizer to each side of the soil, mix it well with a shovel, first cultivate a small amount of soil to stabilize the seedlings, and apply 2 grams of phosphate between the plants, 2 grams per kilogram of soil at a time, and then cover them with plastic film. then raise the temperature and slow the seedlings on the closed balcony, and the seedlings can be ventilated and cooled after 4-5 days. (2) watering and fertilizing. After 6-7 days of planting, slow seedling water can be irrigated once, then ploughing to preserve soil moisture, squatting seedlings properly, watering the first ear fruit after sitting down, and applying urea 1 g / kg soil with the water, in the small dark ditch under plastic film, mature human feces can also be used. When the first ear is about to be harvested, in order to promote the second and third layers of fruit, 1.52.0 g / kg soil of nitrogen can be applied, and the next 2 ears can be fertilized once, preferably with nitrate, phosphate, potassium sulfate, urea and so on. You can also spray fertilizer on the leaves during the growth period. Sprayed with 0.23% potassium dihydrogen phosphate solution for 2-3 times, strong seedlings were resistant to disease, early maturity and high yield. The result period should be watered once a week, should not be suddenly dry and wet, should always keep the soil moist, in order to reduce fruit cracking. (3) plant adjustment. The growth period of this crop of tomato cultivated on the balcony is very long, and the harvest period is up to 6 months, so there are three ways to leave 6 ears or even 9-10 ears: first, the main vine leaves three ears and then picks the heart, and then selects the strongest side branch to replace the main branch to grow, and then leaves three ears to pick the heart. Second, 9 ears of fruit should be pruned, and the head should be changed twice. Third, continuously take off the heart and change the head. (4) protecting flowers and fruits. There are two measures should be earlier not later, one is to pick the heart, generally leaving 2-3 leaves above the top ear to pick the heart. Second, auxin treatment, tomato spirit micro sprayer can be used to spray flowers directly, the concentration is 25-50 mg / L, so it is not easy to produce deformed fruit. Click to get more tomato planting techniques click to get more vegetable planting techniques