Question 1: How long does it take for tomatoes to be harvested from sowing to harvesting? Generally, the nursery period takes more than a month. It takes about 10 days to bloom after transplanting. After flowering and fruit setting, it takes about 40 to 50 days for the fruit to mature. . The picking period for open field cultivation is about one month to one and a half months, the picking period for limited growth type in greenhouse cultivation is about one month, and the picking period for unlimited growth type ranges from 6 months to 3 years depending on the cultivation mode.

Question 2: How many days does it take to harvest a tomato bush? About 3 months

2. Growth cycle

Tomato is a perennial herbaceous plant in the tropics, but is cultivated as an annual plant in temperate frosty areas. Its growth and development process has certain stages and periodicity, and can be roughly divided into the germination stage, seedling stage and seedling stage. There are four different periods: flowering stage, flowering stage and fruiting stage.

Germination period of tomato photography: from sowing to the appearance of the first true leaf (broken heart). Under normal temperature conditions, this period lasts 7 to 9 days; from the time when the seeds absorb water and germinate to when the cotyledons unfold and the true leaves are exposed, it is the germination period. Under normal temperatures, it usually takes 10-14 days from sowing to when the true leaves break. If the temperature is too low, germination will be slow. From the beginning of germination to the expansion of cotyledons, the seeds belong to a heterotrophic growth process. The nutrients required for their growth are supplied by the seeds themselves, that is, from the germination stage to the seedling stage.

Seedling stage: refers to the period from the emergence of the first true leaf to the budding of the first inflorescence. The suitable day temperature during this period is 25-28℃ and the night temperature is 13-17℃. The ground temperature during this period has a great influence on the growth of seedlings, and the appropriate ground temperature should be maintained at 22 to 23°C; the initial flowering and fruit setting period refers to the period from the first inflorescence budding to the fruit setting. This stage is a transitional period for tomatoes from mainly vegetative growth to equal development of reproductive growth and vegetative growth, which is directly related to the formation of product organs and yield;

Tomato flowering period: from flower buds to the first The flowering stage is when the inflorescence fruits are sitting, which takes about 15-30 days. During this period, in addition to continuing the differentiation and development of flower buds and leaf buds, the plants also have very vigorous vegetative growth. The appearance of the plants is that the plant height increases and the leaves continue to grow. Therefore, at this stage, the relationship between vegetative growth and reproductive growth must be adjusted. It is necessary to achieve sufficient vegetative growth, thick leaves, thick stems, deep roots and luxuriant leaves, but also to avoid excessive growth, flower drop and delayed flowering and fruiting.

Fruiting period: from the first inflorescence to the end of harvesting (seedling pulling). During this period, fruits and seedlings grow at the same time, and resolving the contradiction between vegetative growth and reproductive growth is a key priority during this period.

3. Fruit ripening process

Judging from the external appearance, the fruit ripening process can be roughly divided into the following five periods. Production should be timely harvested according to needs.

(1) Green ripening stage (white ripening stage) The fruit no longer grows in size, the peel is shiny, and the fruit color changes from green to white. Fruits in the green ripening stage can be artificially ripened or harvested and stored.

(2) Color-changing period (color-changing period) Most of the fruits are white-green, but the top of the fruit turns red. The fruits in the coloring stage are relatively hard, suitable for long-distance transportation, and the quality is good. The seeds are basically mature during this period.

(3) Maturity stage: Except for the fruit shoulder, a small part of the fruit turns red to all of it. In the mature stage, the fruits have shown the inherent color of the variety and have not yet softened. They have high nutritional value and are best eaten raw, so they must be harvested in time. At this time the seeds in the fruit are fully mature.

(4) Full maturity stage: The fruits all turn red, the pulp begins to soften, the sugar content increases, the sweetness increases, and the seeds are mature and plump.

(5) Over-ripe stage: The fruit is severely softened and the pulp is water-soaked, making it no longer suitable for sale as a fresh food product.

The fruiting period is characterized by synchronous growth of seedlings and fruits, and the contradiction between vegetative growth and reproductive growth always exists. Adjusting the relationship between seedlings and fruits in production is a key technology. [5]

4． Requirements for environmental conditions

(1) Temperature: Tomato is a temperature-loving vegetable. Under normal conditions, the optimal temperature for assimilation is 20-25°C, and the optimal soil temperature for root growth is 20-22°C. ℃. Increasing soil temperature can not only promote root development, but also significantly increase the nitrate nitrogen content in the soil, accelerate growth and development, and increase yield.

(2) Light: Tomato is a light-loving crop. The light saturation point is 70000lx. The suitable light intensity for tomatoes is 30000~50000lx.

Tomatoes are short-day plants. They basically require short days during the transition from vegetative growth to reproductive growth, but the requirements are not strict. Some varieties can bud and bloom in advance under short days, while most varieties bloom longer under 11 to 13 hours of sunshine. Early, the plants grow vigorously.

(3) Moisture: Tomatoes need more water, but do not need frequent and large amounts of irrigation. Generally, a soil moisture of 60 to 80% and an air humidity of 45 to 50% is appropriate. High air humidity not only hinders normal pollination, but also causes severe disease under high temperature and high humidity conditions.

(4) Soil and nutrition: Tomatoes do not have strict requirements on soil conditions, but in order to obtain high yields and promote good root development, tomatoes need to absorb a large amount of nutrients from the soil during the growth process. According to Egelistan reported that for every 5,000kg of fruit produced, 33kg of potassium oxide, 10kg of nitrogen and 5kg of phosphoric acid need to be absorbed from the soil. ...>>

Question 3: How many months does it take for tomatoes to bear fruit from sowing? If sown, it will take about 90 days to be picked and eaten. If seedlings are used, it will be picked and eaten in about 70 days. As long as they bear fruit, 10 will be deducted. About days.

Question 4: How long does it take from sowing tomatoes to transplanting? Generally, tomato seedlings can be transplanted in 90 days. The specific time depends on the development level of the seedlings.

Tomato seedling raising process:

1. Seedling raising time: Generally, sowing and raising seedlings are from late December to early January.

2. Seed disinfection: Generally, the amount of seeds per mu is 30 to 50 grams. Dry the seeds for 2 days before sowing to increase the germination rate. Blanch the seeds with 55℃ warm water for 15 minutes, keep the temperature and stir in one direction, then add cold water to lower to 35℃ and soak the seeds for 6 to 8 hours. In order to prevent the occurrence of viral diseases, you can soak it in 10% trisodium phosphate solution for 40 to 50 minutes, then rinse the seed coat mucus with clean water, drain the water, and dry it before sowing.

3. Seedbed establishment: 10 seedbeds per acre are required, apply 100kg of fully decomposed organic fertilizer, 500g of Yongzhuang fertilizer, 3,000g of 100g of killable fertilizer, spread evenly and lightly plow 12cm, and level the seedbed. , water thoroughly. For seedbed soil disinfection, use Suzhining (58% Manganese zinc) or Hetosun (70% Promethazine) mixed with 70% Xingnong Zhenglu (Thiophanate methyl) at a ratio of 1:1, and apply 10% per square meter. Grams and 5 kg of sieved fine soil are mixed evenly. When sowing, 2/3 of the nutritious soil is used to level the seedbed and used as cushion soil, and then the seeds are spread evenly. After sowing, 1/3 of the soil is used to cover the seeds with a thickness of 0.8 to 1 cm. In order to promote early emergence, the seedbed should be covered with plastic film to keep the daytime temperature at about 30°C, with a maximum of 32°C. When 1/3 of the seedlings are unearthed, remove the plastic film. After gathering the seedlings, lower the temperature to about 25°C to prevent excessive growth. . After the vaccine is ready, use 10 grams of Yibao (68.75% oxazolin. Manganese zinc) or 30 grams of Xitosan (70% proponium zinc) plus 20 ml of Propamocarb (72.2% propamocarb hydrochloride) in 15 kg of water. Spray seedlings repeatedly to prevent and control blight, damping-off and early blight in the seedling stage.

4. Seedling division: When the seedlings grow to have two leaves and one heart, it is the critical period for seedling division. Prepare the nutrient soil in advance, including 1 cubic meter of nutrient soil with 60% field topsoil (remove the top 5 cm of soil to avoid herbicide residues), 40% decomposed organic fertilizer, 10kg Hai Zhuangyuan biological bacterial fertilizer, and Xitosheng (70% propionate). Zinc) 90 grams, Yongzhuang 500 grams, mix thoroughly and put into the bowl. Before dividing the seedlings, dip the roots of the tomato seedlings in 1000 times of Sea Spirit. The temperature is controlled to 28℃～30℃ within 3 days after seedling splitting, and the temperature is controlled to 22℃～25℃ after slowing down the seedlings. Pay attention to spraying 750 times liquid free liquid (72.2% propamocarb hydrochloride) once before dividing the seedlings to prevent damping-off disease. After slowing down the seedlings, use Yongzhuang 500 times liquid + Teyougen 500 times liquid for root irrigation to prevent and cure the disease immediately. At the same time, the blight causes many tomato seedlings to take root.

5. Promote flower bud differentiation: The flower bud differentiation of tomatoes starts from the third true leaf and ends with the ninth true leaf. Basically, by the time of the seventh true leaf, the first three fruits are all It has been differentiated. If the flower buds are not differentiated well, deformed flowers and fruits will appear in the later stage. Therefore, the differentiation of the flower buds in the seedling stage directly determines the yield in the early stage. In order to promote the differentiation of flower buds, spray 25 grams more flowers and fruits + Sea Elf when there are 3 to 5 true leaves. 8 grams can promote flower bud differentiation.

6. Pests and diseases at the seedling stage: The focus of pest control is whitefly, aphids, and leafminers. Use 5 grams of 70% imidacloprid and 10 grams of 40% Valin to spray 15 kilograms of water.

The main diseases in the seedling stage are viral diseases and stem rot. To prevent and control viral diseases, use 4% Ningnanmycin 25 ml + Compozinc 4 ml + Longden Eudoboron 15 ml + Haijing when there are 3 to 4 true leaves. 8 grams + 100 ml of honey sprayed with 15 kg of water; to prevent and control stem rot, you can use 9 grams of Yikuaijing (52.5% oxazolin? cymoxanil) 2 days before planting, which can kill 3,000 to 10 grams Sea Elf 8g spray seedbed with 15kg water.

7. Standards for planting seedlings: The seedlings are about 90 days old, the main stem is half purple and half green, 70% has flower buds, the stem is 0.6 cm thick, the root system is developed and free of diseases and insect pests.

Question 5: How long does it take to grow tomatoes? There are two major categories, one is annual and the other is unlimited growth type.

The general growth period of annuals is 4 to 6 months, and it will be longer if the environmental conditions are better. .

Another type of tomato is the unlimited growth type, which can grow for many years, continue to grow, and continue to bear fruit.

Question 6: How long does it take to plant tomatoes before harvesting them? It is an annual herbaceous plant that can complete its life cycle in one growing season, that is, it blooms, bears fruit and then dies in the same year. Greenhouse hydroponic tomatoes are sown and nursed in early July every year and planted in mid-August. Cultivation tubes: Tomato water and fertilizer daily automatic control system , supplied eight times a day for about eight minutes each time. It blooms and pollinates one month after planting, and can be harvested in about two months. The harvest period is from mid-October to early July of the following year.

Question 7: How long does it take to grow a tomato from a seed? Usually 2 months. Seedlings are raised in March and bear fruit in May. It takes about a month to eat. I just started eating it a few days ago. When you are raising seedlings at this time, it is difficult to determine how they will grow if the temperature is too high. It is difficult to bear fruit when the temperature is too high, so you don’t know when you will be able to eat them. Depends on weather conditions. < /p>

As long as the results are obtained, about 10 days will be deducted.

Question 9: How many days does it take to sow tomatoes to bear fruit? Hello!

The growth and development cycle of tomatoes

The period from seed sowing and germination to the maturity of the first fruit seed is the growth and development cycle. It is divided into four stages: germination stage, seedling stage, flowering and fruit setting stage and fruiting stage.

1. Germination period

The development period is from the time when the seed germinates to when the two cotyledons grow and the first true leaf is revealed, usually 7---9 days.

2. Seedling stage

The period from the first true leaf to the emergence of large flower buds is the seedling stage. Seedlings generally take about 50 days under suitable temperatures, and in cold seasons it takes 60-80 days, about 40 days in high temperature season.

3. Flowering and fruit setting period

This period takes 15---30 days. Early-maturing or high-temperature cultivation requires a shorter time, and vice versa.

4. Fruiting period

The fruiting period is from the first inflorescence fruit setting to the harvesting of all fruits. It takes 70-80 days in spring and July-August in the solar greenhouse. The fruiting period of tomatoes is the time when they need the most nutrients and water, and it is also an important period for management.

Question 10: How long did it take for the small tomatoes you planted to bear fruit? One and a half months