Planting techniques of Tomato

First of all, the tomato planting land will be fertilized and ploughed, and the seeds will be treated at the same time. Then sow the treated seeds in the soil from April to May, then soak them with water and cover the seeds with thin soil. And then in its periphery good support, cover plastic film. Finally, do a good job of maintenance in the later stage.

Tomato colonization management:

1. Temperature

After planting, there is a big release day and night, release the bottom wind, close around the greenhouse, only in the middle and upper parts. When the external temperature drops below 15 ℃, the weather is stopped at night and controlled at 25? 30 ℃, 15 at night? 17 ℃ . After the whole shed was fastened in late October, the roof was ventilated and dehumidified at noon.

two。 Water and fertilizer

Ploughing and weeding at the right time 2-3 days after planting, and watering once after slow seedling. Now the big buds are watered with water and then shallow ploughing and squatting seedlings. Wait for the first ear to grow to the size of walnut when topdressing watering, after mid-October, stop watering. Foliar fertilizer was sprayed to the fruit expansion period.

3. Pruning

The plant was adjusted by single dry pruning, leaving 3-4 fruits with correct shape on each ear, and 4-5 fruits in small fruit type varieties, excluding the rest of the fruits.

4. Pest control

Attention should be paid to the prevention and control of virus disease and late blight in cultivation. Pay attention to the prevention and control of virus diseases in the early stage, in addition to selecting disease-resistant varieties, sowing at the right time, raising seedlings in nutrient bowls and selecting disease-free seedlings, the shed can be fastened in advance, which can significantly reduce the number of aphids. If diseased plants are found, they should be removed in time and replanted after washing hands with soapy water. In the middle and later stage, we should pay attention to the prevention and control of late blight, strengthen ventilation to reduce temperature, remove diseased leaves and fruits, and comprehensively spray Dysen zinc, chlorothalonil and so on.

In addition, planting tomatoes should be properly harvested, and storage and preservation can be harvested in the green ripening period. The transport sale can be picked during the discoloration period (the fruit turns red at 1pm 3). On-the-spot sale or self-feeding should be picked during the ripening period, that is, when the fruit turns red above 1 / 3.