How long does it take for tomato seedlings to grow?

Tomato seedlings need about 2 months, suitable for tomato seedlings in spring, about 3-5 months, greenhouse planting will be appropriate one or two months earlier.

In addition, autumn is also possible, which takes place in July-August. When raising seedlings, it is necessary to prepare nutrient soil first.

and seeds, it also needs to be simple to treat the seeds, and finally to sow seedlings.

Before planting, the seeds should be soaked in warm water for about 15 minutes and stirred evenly. After that, add some cold water to lower the temperature to about 35, and then soak for 6-8 hours.

In addition, in order to avoid the seedlings suffering from diseases, it is also necessary to put trisodium phosphate.

Soak in the solution for 40 minutes, then rinse with water and let it dry.

Tomato seeds are sown after germination and grow within 7 to 14 days. Look at the temperature at the time of sowing and the soil in which you are planting.

Germination, from sowing to the appearance of the first true leaf (heartbreaking). Under normal temperature conditions, this period is 7 to 9 days; From the seed absorption and germination to the cotyledons and true leaves, it is the germination period. At normal temperatures, it generally takes 10-14 days from sowing to the time the true leaves break the heart.

If the temperature is too low, the emergence of seedlings will be slow. Seeds from the beginning of germination to cotyledons belong to the heterotrophic growth process, and the nutrients required for its growth are from the seeds themselves, that is, from the germination stage to the seedling stage.

Answer: Tomato seedlings sprout 7-14 days after planting, as long as the right temperature is ensured, the sprouts can grow quickly, try to choose deep soil layer and strong water retention soil when planting tomatoes, and after the seeds germinate, it is necessary to provide them with sufficient scattered light to promote the growth of sprouts, and to apply rotten organic fertilizer to tomato seedlings to make the plants grow more vigorously.

The normal emergence period is about a week.

To control the degree, humidity, temperature and water.

Wishing you a great harvest.

Open-air tomato seedlings are generally raised in March and May in spring, and the environment and climate are different in different regions, and the warming time is also divided into early and late. In the case of the southern region, the seedlings can be raised in February, and in the northern region, the seedlings are usually raised after April. In order to prevent frostbite and frostbite seedlings in northern China, it is necessary to wait for the temperature to be relatively stable before raising seedlings.

Tomatoes are suitable for growing in deep, well-drained and organic-rich soils. In addition, the soil needs to be loose and nutrient-rich, so that it can be turned over before planting. And add enough fully decomposed farmhouse fertilizer into it, so try to choose loose and fertile soil with good water retention performance and excellent fertilizer retention performance for planting, so as to get high yield.

Open-air tomatoes are best sown in February-March in spring, although some varieties are best planted in July. The planting time should be determined according to the stable climate of the region. If it is in a cold area, the sowing time should be postponed, and the sowing should be done after the temperature is stable in April and May.

In the warmer regions of the south, early spring and autumn sowing are fine. If you want its growth to be unrestricted, you can use greenhouses to plant, which can control the temperature well and can be sown at any time.

Tomatoes are raised from the end of December to mid-January.

Generally, when the local temperature is stable above 13, you can sow seedlings, you can choose the appropriate sowing time according to the temperature of different regions, as well as the sowing method, tomato seedlings in early spring depend on the degree of insulation in the greenhouse and the planting time outside the shed, usually the greenhouse planting time is 2 months earlier than the outside of the shed.

If the greenhouse is planted in mid-May, the greenhouse will be planted in mid-March, and the tomato seedling age is about 60 days. If it is planted in conjunction with other crops, it is necessary to choose the seedling raising time according to the harvest time of the previous crop, and try to take the method of waiting for seedlings.

Seedling Technique:

1. Soak and disinfect.

Usually the amount of seeds per mu is between 30-50 grams, 2 days before sowing, can improve the germination rate, and then soak in warm water about 55 for 15 minutes, stir clockwise, add cold water, and wait for the water temperature to drop to about 35, soak the seeds for 6-8 hours, which can effectively avoid the occurrence of viral diseases.

Soak it in 10% trisodium phosphate solution for about 50 minutes, wash off the seed coat mucilage with water after soaking, drain the seeds, and dry them before sowing.

2. Establish a seedbed.

An average of 10 square meters of seedbed per mu is needed, and then 100 kg of organic fertilizer is applied to fully rot, 3,000 100 grams can be killed, 500 grams of Yongzhuang fertilizer, 12cm is withdrawn and turned shallowly, and then the seedbed is leveled and the water is poured thoroughly, and the seedbed soil is disinfected with 58 methyl frost manganese zinc and 70 thiophanate-methyl mixed 1:1, and 10 grams and 5 kg of fine soil are filtered and stirred evenly according to 10 grams and 5 kg of fine soil per square meter.