What are the climatic requirements for transplanting open-air tomato seedlings in natural environment?

Tomb-Sweeping Day planted melons and beans before and after. Is there a big temperature difference in mid-spring season? What climatic conditions should we pay attention to when transplanting tomato seedlings in the open air? This kind of "tall seedling" is easy to appear in tomato seedlings transplanted in greenhouse every year. The time from sowing to transplanting of tomatoes is about one month, which is not too long. The stem is thick and short, the stem height is about 15~20cm, the stem diameter is below 0.3cm, the root system is developed, there are many roots, and the growth is vigorous. At this time, transplanting can be chosen, and the survival rate is higher in the future. The plant height of tomato seedlings is about 1.5-20 cm, and it is transplanted in the place where the stem is 0.3 cm thick.

Tomatoes transplanted in the open air are first transplanted under 20~22 degrees geothermal. Tomatoes are a warm vegetable. Under normal circumstances, the daytime temperature is about 20~28 degrees, and the root system is most suitable for soil temperature growth between 20~22 degrees. Tomato seedlings grow vigorously and have developed roots under such climatic conditions.

The weather of tomatoes transplanted into the wild is getting warmer, and the temperature below low temperature is a little low, but it is not urgent. After transplanting, put the tomato seedlings on the bow by inserting a small bow. When the temperature of seedlings is high, put two people in the sky, and ventilated tomatoes, a promising plant, will grow well under the insulation of small bows. When the temperature and low temperature are suitable for tomato growth, take a small bow and let the tomato grow in the open air.

I want to plant tomatoes well, with good results and more harvest. Choose plots rich in organic matter and reasonably match base fertilizer. Strong disease resistance and drug resistance, beautiful fruit shape, good quality and high yield, suitable for planting varieties with suitable climate when transplanting. After transplanting tomatoes, water must be used to promote the growth of roots and plants. When the ground is wet and dry, intertillage weeding should be carried out in time to make the management play the role of heat preservation and moisture preservation. Good soil ventilation is beneficial to tomato root growth and plant sturdiness. After the tomatoes grow to about 20-25cm, make columns, tie the tomatoes to the columns with ropes, and prune and fertilize the tomatoes to prevent pests and diseases.