Key points of purple tomato cultivation management and planting techniques

Speaking of purple tomatoes, I believe many people think they are genetically modified varieties. In fact, purple tomato is not a genetically modified variety, but a new generation of characteristic hybrid color varieties, with the characteristics of good taste, high yield, strong disease resistance, etc., and high planting value. So, how should purple tomatoes be grown? The key points of purple tomato cultivation and management and planting techniques are introduced as follows.

1. The cultivation and management of purple tomato

The fruits of purple tomatoes are ripened in sequence, so they should be harvested in batches when they are ripe. Purple tomatoes are highly adaptable and can be cultivated in open fields and protected areas in the north and south of my country. If it is cultivated in the open field in Beijing, it is recommended to sow and raise seedlings in mid-to-late February and harvest in late June; in spring greenhouses for sowing and raising seedlings from late December to early February of the following year, harvesting starts in late May; autumn greenhouses or greenhouses for sowing and raising seedlings in July, 10 The harvest begins in the middle and late months. In the process of cultivation and management, in addition to ensuring adequate water and fertilizer supply, it is also necessary to adjust plants, erect and tie vines in time. Generally, single-pole pruning is used, and only the main shaft is retained. The removal time of axillary buds is also different.

Second, the key points of purple tomato planting technology

1. Climatic conditions: It can be planted all over the country, but the temperature is stable between 12-35℃, suitable for open field planting, and shade above 35℃; greenhouse for planting below 10℃.

2. Land preparation and bordering: The plots for transplanting cultivation shall be turned 25-30 cm deep. Increased application of base fertilizer: Generally, 10 kg of mixed compound fertilizer of 2000 kg of farmyard manure and 10 kg of superphosphate are applied per acre, and 10 kg of fully decomposed and fermented vegetable cake fertilizer can be added as basic base fertilizer per acre.

3. Planting and irrigating the ground: the day before planting, pour the seedbed with plantar water, cut the tufts the next day, and dig deep drainage ditches to reduce water accumulation. Pay attention to avoid pouring large soaking during planting and after planting and before fruit setting.

4. Planting seedlings: After the seedling height is 10-25 cm, 5-7 true leaves or the seedling age is 50 days, choose to plant in time on a sunny day without wind, and plant it before raining. After planting, it is necessary to water enough water at a time in order to bridge the roots.

5. Planting density: 2000 plants per acre are generally planted. Varieties should be north-south borders. It is recommended that the borders are 1 meter wide, planted in 2 rows, and the plant spacing is 35 cm.

6. Planting depth: do not plant too deep or too shallow when planting seedlings (3-4cm into the soil is appropriate). When planting, it can be planted at a 45-degree angle (the exposed stem tip is slightly tilted to the south) to reduce the height of the seedlings on the ground, promote indeterminate roots, and prevent lodging and sunburn.

7. Planting and binding vines: adjust vegetative growth and reproductive growth, and promote both seedlings and fruits. Shelving mostly adopts herringbone, quadrangular, and nylon rope hanging. Generally, the first layer of inflorescence needs to tie the vine when it sees the fruit, and it should be tight enough to leave room for the growth of the stem.

8. Pruning and branching: pruning and keeping the main stem when growing in the open field, and leaving only 1-2 side branches under the first inflorescence. Take care to avoid pruning before rain, when it rains or when the dew is not dry, to prevent infection, *** *** Between 10 am and 3 pm on a sunny day. In the later stage of growth, the old leaves, diseased leaves, and diseased fruits should be removed to facilitate ventilation and light transmission and reduce pest damage.

9. Top dressing and irrigation: In the fruit-bearing period, the plants need sufficient nutrients and water, and should be combined with irrigation for thin fertilizer and frequent application to meet the needs of rapid growth and development of plants and fruits. It should be noted that organic fertilizer should be used as the main ingredient, reduce the use of chemical fertilizers, increase the thickness of the peel, increase the color of the fruit, ensure the quality, and control watering during the mature period to prevent fruit cracking.

10. Flower preservation and fruit preservation: Vibration pollination during the flowering period and use of Zuoguoling. The concentration is controlled at 10mg/kg during the flowering period. Irrigation should be controlled and the foliage sprayed. Fertilizer and water management during the fruit ripening period should be evenly dried and wet to prevent fruit cracking. Lateral branches are prone to occur in the leaf axils, which must be pruned frequently and in time. In the early stage, the axillary buds can grow to 10~15 cm and then removed. In the middle and late stages, the axillary buds should be removed in time within 3 cm.

11. Yield per plant: Under normal conditions of temperature control and field management, fruit can be picked continuously for 4-8 months, and the yield per plant is generally 3-5 kg. With good management, the yield per plant can reach more than 10 kg.

12. Fruit harvesting: the open field can be harvested one after another about 60 days after planting. For storage or long-distance transportation, it is harvested during the color-changing or semi-mature period. Fresh fruits are on the market and are harvested in the near-mature period. Early harvest at the right time can increase the early yield and output value, and is conducive to the growth and development of the upper flower and fruit of the plant.

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