Tomatoes start to grow in a few days after planting, and how many days is the tomato growth cycle

Eggplant grafted tomato, grafted five days to start growing, only to find out that it is really too simple!

Tomato cultivation in energy-saving solar greenhouses, the following matters need to be paid attention to when planting:

1. Age-appropriate transplanting and directional planting: planting should be decided according to the growth of seedlings. Seedlings can only be planted when they grow to 8 or 10 leaves and the first inflorescence is just revealed.

When planting, it is necessary to implement directional planting according to the direction of inflorescence growth, so that the inflorescence growth part is on the side of the operation row (wide row), because the light in the wide row is sufficient, which can improve the light conditions of young fruits, facilitate the growth and development of fruits, reduce the occurrence of tendon rot fruits, and facilitate future field operations.

2. High-temperature simmering room: high-temperature simmering room should not be later than the first half of September, buckle the film before simmering, fill the room with water, and then divide it into 4 piles to ignite 2 kg of sulfur powder, 80% dichlorvos 300 400 grams, close the greenhouse to increase the temperature, simmer for 7 10 days, and kill indoor germs and pests.

3. Kill the seedbed pests and diseases, and clean the seedlings into the room: 7 days before planting and on the day of planting, carefully spray the seedlings with insecticides and fungicides, completely eradicate the bacteria and insect pests, and achieve the net seedlings into the room to reduce the damage of diseases and insects.

4. Seedlings in dry soil, stable seedlings in water holes: stop irrigation in the seedbed 7 to 8 days before planting to dry the soil mounds and prevent transplanting and scattering mounds. The planting hole should be opened 1 2 days in advance, so as to reduce the process of planting and improve the planting speed.

When planting, we strive to plant the entire greenhouse on the same day, so that it is easy to manage. After transplanting the seedlings, the root system will absorb water and new roots will occur, and the seedlings will not wilt, which can greatly shorten the seedling delay time. When planting, the hole is watered first, and then the seedlings are put infirmary, the seedlings are marked by the inflorescence, the orientation and positioning are horizontally planted, the soil mound is placed on the side, the seedling growth point is inclined to the north, and there is water in the hole, and the soil mound is pressed lightly on the top of the soil ridge.

5. Watering the medicine to protect the seedlings, and seal the hole the next day: after the water in the hole is infiltrated, each hole is watered 3000 times 96% Tianda Oxamyl + 500 1000 times drought and flood harvest solution, 150 200 ml per hole, improve the soil structure, promote the roots, and prevent the occurrence of root and rhizome diseases. Do not rush to seal the soil on the day of planting, wait for noon the next day, the hole temperature can be sealed after the temperature increases, combined with the sealing hole, each hole is sprinkled with 30 50 grams of biological organic fertilizer, carefully hoe the ridge, loosen the soil, increase the ground temperature, and cover the hole with plastic film immediately after sealing.

Note! When sealing the soil, the stem below 20 cm from the inflorescence should be buried shallow into the soil to promote adventitious roots, and then not only the plant is robust, but also the fruiting part is reduced, so that the first ear is 20 cm high from the ground, which is easy to manage and increase the number of fruit spikes. At the same time, it is absolutely not allowed to press the mulch, so as not to compaction the soil, or crush the soil lump, injure the root system, and affect the seedlings.

6. Reasonable change and dense planting: According to the characteristics of weak and uneven light conditions in the greenhouse, attention should be paid to adjusting the group structure when planting, and reasonable and variable dense planting should be implemented to achieve sparse in the north and dense in the south, so as to improve the utilization rate of light energy.

Plant spacing: 27 30 cm in the south of the greenhouse, 30 35 cm in the middle, and 35 40 cm in the north. 3,000 3,200 plants per 667 m2.

The time of growth of tomatoes is related to the regionality. In the northeast and northwest regions, it is sown in March-April and harvested in July-September, generally taking about 110 days. In northern China, it takes about 140 days to sow seeds in January and February and harvest in late June.

The Yangtze River basin takes the longest time to sow seeds in November and December and harvest in July, while the Pearl River region takes the shortest time to sow seeds in August and September and harvest in November.

Tomatoes grow in 110-170 days. Among them, the growth period is 7-9 days; Seedling stage 40-80 days; The flowering and fruit-setting period is 15-30 days, and the fruiting period is 30-50 days. In the spring, the protected area was planted during the transition period of cold and hot weather from late February to early March, and the open field mulch film was planted during the transition period of cold and hot weather around March 20.

The plant spacing of the early-maturing varieties is 30 cm, the row spacing is 50 cm, and there are about 3000 plants per mu. Medium-late maturing varieties can be retained about 3500 plants per mu by single-stem pruning method, and about 2000 seedlings per mu can be retained by double-plant pruning method.

How long do tomatoes grow.

The growth cycle of tomatoes is about 100 to 140 days. Generally, the growth cycle of tomatoes in different regions and varieties is different. Tomatoes planted in spring generally have a growth cycle of 110 days, and tomatoes planted in autumn generally have a growth cycle of 140 days.

The growth and development stages of tomatoes are generally germination, flowering, and fruiting. Generally, there are two sowing times, one is in March and April in spring, and the harvest time is about September, and the other is in January and February.

The growth process of tomatoes.

1. Germination periodThe germination period is generally from the first planting to the germination of new branches and sprouts. This time is about 10 to 14 days, and its nutrients are generally supplied by the seeds themselves. 2. The flowering period generally takes 15 to 30 days.

This stage is usually a critical period for tomato growth. 3. Maturity PeriodThe maturity period is generally the time when it can be harvested. If the environment is suitable, its yield will be relatively high.

At the same time, a certain amount of moisture should be guaranteed during this period.

Maintenance and management of tomatoes during the growing period.

In general, spending more time in the sun can promote its growth. 2.Flowering Maintenance:

The main management measures at this stage are fertilization and watering. Generally, some fertilizers should be applied once a month or so, and water should be added once a week. 3.

Maintenance during the maturity period: It is generally necessary to prune during the maturity period and cut off some bad branches, which is conducive to promoting the growth of branches with better growth.

The suitable seedling age for open-field spring tomato cultivation is 50-70 days, that is, sowing should be carried out 50-70 days before planting. For example, in the Shenyang area, which is located at 41 north latitude, spring tomatoes are sown in the protected area in February, and planted in the open field after the late frost in early May. At the seedling stage, management should be strengthened and strong seedlings should be cultivated.

Spring tomatoes are generally planted immediately after the late frost period in the local area, and the ground temperature of the cultivated layer is 5-10 cm deep and stable through 12 o'clock. For example, the average late frost period in Shenyang is May 2, and the suitable planting period is generally May 6-10. The Yangtze River basin is generally planted before and after the Qingming Festival, before and after the valley rain in North China, and around the beginning of summer in Northeast China1.

Planting should also be determined according to the weather conditions, in case of rainy and rainy weather, the planting should be appropriately postponed. Early planting should be carried out during the suitable planting period.

Preparation for planting: Before planting, about 5000 kg of decomposed organic fertilizer per mu is applied, 80 kg of 15 15 15 nitrogen, phosphorus and potassium compound fertilizer is used as base fertilizer, 30 cm deep, rake is crushed and leveled, and disinfectant is sprayed with 800 times of new high-fat film to disinfect the soil. Then it is made into a furrow to be planted.

Plant row spacing configuration: plant spacing 40 45 cm, row spacing 75 80 cm, 1700 1900 seedlings per mu. High ridges are used for planting.

Slow seedling management: the key is cold protection and heat preservation. The temperature is kept at 25 30 during the day and 15 18 at night, and the new high-fat film is sprayed at the seedling retardation stage to shorten the seedling retardation period and protect the seedlings from thriving.

From the seedling period to the pre-fruit set: the temperature during this period should be controlled at 23 25 during the day, 18 20 in the afternoon, and the temperature at 13 15 at night. In terms of water and fertilizer management, it is mainly promoted.

5 7 days after watering planting water, choose a sunny day to water the seedling water in the morning, and combined with watering 10 kg of urea per mu, spray to promote Kao 3 to inhibit the growth of the main shoots, promote the differentiation of flower buds, and at the same time when the soil surface can be operated, loosen the soil and hoe. Fruit setting period management: start ventilation when the shed temperature rises to 25 in the morning during the fruit setting period, keep the shed temperature at 23 25, about 20 in the afternoon, and 15 18 at night.

The relative humidity is kept at 50% and 60%, which can effectively prevent the occurrence of diseases, and spray the tomato at the early flowering, blooming and fruit expansion stages (add 1 capsule of the vegetable fruit to every 15 kg of liquid, stir and dissolve and spray the foliage. Once, the tomato can enhance the quality of pollen fertilization, improve the rate of cyclic fruit set, promote fruit development, multi-fruit set, prevent fruit drop, no deformity, improve quality, and produce bumper yields year after year.

Generally, it can be planted when the ground temperature is above 12 degrees.

When can you plant at home or under suitable conditions in a greenhouse, outdoors at a temperature of more than 25 degrees.