Tomato planting technology

[ Agricultural Products Network] Tomatoes are also known as foreign persimmons . The fruits are rich in nutrients and have special flavors. They can be eaten raw, cooked, and processed into ketchup, juice or whole fruit jars. Therefore, the cultivation of tomatoes is constantly increasing. This article gives you a detailed introduction to the technical knowledge of tomato planting for your reference.

1. Soil disinfection and plot selection Protected areas use solar energy to disinfect in summer. As far as possible, the seriously ill plots should be rotated for more than three years with non-solanaceae vegetables , or rice rotations should be implemented to control soil-borne diseases. Sandy loam or clay soil with deep soil, fertile, good ventilation, convenient drainage and considerable water retention, pH 5.6~6.7 should be selected.

2. Suitable for large-scale and medium-shed spring tomato cultivation. It is necessary to buckle the plastic film before planting. Because the shed film is frozen beforehand, in order to increase the ground temperature as much as possible, it is necessary to grab the shed early. The shed film can be buckled 2 to 4 weeks before planting. It is not necessary to buckle the shed film before freezing, and the shed can be buckled too early. The film is seriously polluted, the light transmittance is reduced, and the service life of the film is also shortened. The shed tomato is planted and then inserted into the arch buckle film. Most of the greenhouses are buckled in the fall.

3. Before the planting is done, the former dead leaves of the dead leaves will be cleaned and deepened. Line spacing 50 ~ 60 cm for ridges, can be used flat or high sorghum, 畦 width 1.5 m, double row planting. Laying drip irrigation facilities and implementing water-saving cultivation can effectively raise the ground temperature in winter and spring, and effectively control pests and diseases. Two drip irrigation belts are laid in the middle of each raft, arranged near the root system. Generally, a trough groove should be repaired on the surface of the crust, and the micro-arch of the mulch film should be supported to effectively increase the ground temperature by 3 to 4 ° C to carry out sub-film watering. It is also possible to use a mulch film for every two large ridges, and the ditch between the two ridges is reserved for watering. The mulch film should be covered 1 week in advance, and it should not be planted along the film, otherwise the seedlings will be long.

4. Apply the base fertilizer to the ridge and then break open the ridge and ditch to apply the high-quality farmyard manure, 4000-6000 kg per mu. Chicken manure may be mixed manure, soil kang, house soil, dust, ash, pig manure and the like, and mixed mu DAP 15 to 25 kg, exposed increased to 30 kg, cake 100 kg, potassium sulfate plus 14 ~20 kg. It is recommended to use biological potassium fertilizer . It is not advisable to use nitrogen fertilizer alone, such as urea . Otherwise, the disease resistance will decrease, the seedlings will grow long, and the growth will be slow. This also plays an important role in the prevention and treatment of various physiological diseases such as viral diseases, blight and rot. Fertilization requires uniform mixing and deep application in the cultivation line 20 to 25 cm. When the soil available phosphorus (phosphorus pentoxide) concentration reaches 80-120 mg / kg, the phosphate fertilizer can no longer be applied. It is forbidden to use municipal waste, sludge, and industrial waste.

5. Greenhouse disinfection disinfection of 2 to 3 kg of sulfur powder per mu of greenhouses, plus 80% of dichlorvos EC 0.25 kg mixed with sawdust, piled up to ignite, and then closed the shed for a day and night, after the release of wind, no matter when planted.

6. Grab early planting of spring tomato seedlings and other vegetables are significantly different, especially sensitive to early planting, even after 1 to 2 days of early planting can clearly see the difference, especially the seedlings of the flower buds. Therefore, early colonization should be specifically advocated. The colonization time is based on the low temperature of the ZUI in the shed. In the early morning, the ground temperature of 10 cm deep reached 5 °C or above, and the ZUI low temperature no longer appeared at 0 °C. Most of the greenhouses are in mid-January, and the greenhouses are from late March to early April. Try to be as thin as possible and take the size line. Generally, the row spacing of the tomato is 60 cm, the plant spacing is 35-40 cm, and 2 rows are planted on the raft, the rafting distance is 50 cm, and the row spacing is 1 meter. The number of cultivated plants per acre is 2,000 to 2,200. The ordinary low shelf cultivation density is 60 cm row spacing, the plant spacing is 30 cm, and 3300-3500 plants per acre are planted. The planting should be carried out in the morning when the bad weather just passed and the good weather just started. First, drill the hole on the mulch according to the plant spacing, pour enough water, and pour the warm water around 30 °C. Then move the nursery into the sputum, the nutrient sputum seedlings should be removed from the container, and the direction of the flower buds should be directed outside the ridge when the nursery is moved. The result will be on the outside of the shelf, which will help prevent the tomato gray mold. The small arch shed spring tomato should turn the direction of the flower buds to the north to prevent the disease. After the water has been infiltrated, it should be sealed. Do not water the seedlings first, so as not to increase the damage.

Tomato planting technology