Tangshan area suitable for planting which fall delayed tomatoes

Tangshan area is suitable for the planting of adaptable, disease-resistant, productive dwarf seedling varieties, such as Lupin 2, Early Abundance, Xifeng 3, Jinfeng 65 and so on.

Autumn delayed tomato refers to the summer sowing seedlings, planting in early September, early October with sunbeds, greenhouses or greenhouses for protected cultivation of this crop of tomatoes. Tomato fall delayed cultivation is generally harvested in mid-November to early December, after a period of storage, on New Year's Day or the Spring Festival to supply the market, can achieve high economic benefits. Autumn delayed cultivation of tomatoes, the temperature is high in the early and late low, plant growth is weak, susceptible to virus disease. To cultivate a good autumn delayed tomato, we must grasp the following links:

One, choose the appropriate varieties

Select adaptable, disease-resistant, yielding dwarf seedling varieties, such as Lupin 2, early abundance, west powder 3, Jin powder 65, and so on.

Two, cultivate high-quality strong seedlings

The appropriate sowing period is very important for the delayed cultivation of tomatoes in the fall, the appropriate sowing period for the end of July to early August. 3-4 days before sowing, with 10% of the trisodium phosphate soaked seeds for 20 minutes, wash the disinfectant solution with water and soak the seeds in 30 ℃ warm water for 3 hours, at room temperature to germinate, after germination, sown in the prepared nursery beds, seedling beds around the bamboo poles into a pergola frame, generally in the sunny days from 10:00 a.m. to 3:00 p.m. covered with a straw curtain to shade and cool down. Seedlings should be timely inter-seedling, and pay attention to the prevention and control of aphids. Tomato seedlings appear 2-3 true leaves divided seedlings, seedling spacing 12-13 cm. During the period of slowing down the seedlings, put up a shade before and after noon. 4-5 days before planting watering cut blocks, with soil lump planting.

Three, planting

The planting period is late August to early September. A few days before planting full bottom fertilizer, made 1.5 m wide bed, each bed planted 4 rows, plant spacing 30 cm, watering after planting.

Four, plowing, fertilizer, irrigation

Autumn delayed tomato planting slow seedling, should be timely hoeing plowing. Seedlings 7-8 leaves when watering 1 big water, and then plowing squatting seedlings. The first spike of fruit sitting that is the beginning of fertilizer, per mu of nitrogen, phosphorus, potassium compound fertilizer 20 kg, followed by watering, to promote fruit expansion. After each spike of fruit sitting combined with watering chased 1 time, each time with urea 15-20 kg or ammonium sulfate 30-40 kg or diammonium phosphate 15-20 kg per mu.

Five, frame, dipping flowers to protect the fruit

Autumn delayed tomato more than a single culm pruning method, in addition to the main culm, all the leaf axils occurring in all the lateral branches of the early removal, each spike to stay in the 4-5 fruits, the excess of flowers and fruits are all removed. The shed with a plastic rope hanging vine. after mid-September, the night temperature is low, not conducive to tomato pollination, fertilization. Flowering and fruiting period, each spike of flowers 2-4 flowers, available 15-20ppm of 2,4-D painted flowers, or 30-40ppm tomato spirit dipped in flowers, is conducive to improving the rate of fruiting.

Sixth, centering, flower thinning, fruit thinning

When the retained fruiting branch reaches a certain number of fruit spikes and the number of leaves, the apical growth point removed. Picking should be left in the inflorescence on the upper side of 2-3 leaves, which is conducive to fruit growth, but also to prevent direct exposure of fruit in the sun caused by sunburn. Autumn tomato flower thinning, can ensure that the plant has a certain number of results, reduce the number of results caused by too much nutritional deficiencies, accelerate fruit hypertrophy, increase the weight of a single fruit, improve the neatness of the fruit, improve the quality, improve the commerciality. Tomato single plant fruiting number of general large-fruited varieties of each spike should stay 3-4 fruit, medium-fruited varieties should stay 4-5 fruit, small-fruited varieties can stay more than 5. Tomato cultivation in the flowering period should be thinned out excess buds and deformed flowers, after the fruit should be thinned out fruit shape is not neat, shape is not standard and the same spike development is too late fruit.

Seven, cover the cold

Autumn temperatures are gradually low, should be covered in time to maintain the appropriate temperature. late September to early October, in the tomato beds of the north, east, west of the border wall, made into a sunny border border frame. the end of September to the beginning of October, tomato beds at night covered with plastic film, daytime uncovered. After frost, cover with plastic film during the day and add straw thatch at night. With plastic greenhouses or greenhouses for fall delayed cultivation of tomatoes, can be directly planted in the shed, in mid to late October buckle shed.

Eight, harvest

Tomato color change red, should be harvested in a timely manner, in order to facilitate the normal growth and development of other fruits on the plant. Has turned color red fruit after harvest can be stored at a low temperature of 2-5 ℃ 15-20 days after the market. early December, the weather is cold, should be all the fruit harvesting and grading after packaging storage, storage temperature can not be lower than 8 ℃.