What are the conditions and management points of tomato soilless cultivation facilities? The conditions of tomato soilless cultivation facilities include cultivation tanks, irrigation facilities and cultivation substrates. The main management points include soilless seedlings, planting management, water and fertilizer management, and pest control. Next, we will talk about the conditions and management of tomato soilless cultivation facilities. Key points.
First, the facilities conditions
1 cultivation trough
80cm in the north of the greenhouse and 30cm in the south, and then the bricks are built into the north-south cultivation trough. The inner diameter of the cultivation trough is 48 cm wide, the trough frame is 24 cm high, the trough is 72 cm, and a layer of 0.1 is placed at the base of the trough. After the millimeter-thick plastic film is pressed with the uppermost brick, the film is covered with 3 cm thick clean river sand, and a layer of woven bag is placed on the sand, and the substrate is filled with the substrate.
2 irrigation facilities
Use tap water facilities or reservoirs with a water level difference of 1.5 m. The main pipes in the reservoir and the drip irrigation belts in the cultivation tanks can be made of plastic pipes. There are 1 to 2 drip irrigation belts and 0.1 mm thick plastic. film.
3 cultivation substrate
The organic substrate may be corn stover, mushroom residue, sawdust, etc., the inorganic substrate is sand or slag, and the mixing ratio is 1:2:2, and the mixture is uniformly mixed and filled, and the substrate is disinfected after each crop is harvested.
Second, no soil nursery
1 Select tomato varieties with low temperature tolerance, low light tolerance, high yield and strong disease resistance. At the end of September, artificial seedless tray seedlings are used to soak seeds and germination;
2 According to the ratio of 3:1 of charcoal and vermiculite, mix the matrix with 5 kg of chicken manure and 0.5 kg of vermiculite compound fertilizer, mix and fill in 72-well plastic tray;
3 The temperature before emergence is maintained at 25-30 °C, the temperature after emergence is 20-25 °C during the daytime, and 10-15 °C during the nighttime. When the seedlings grow 3~4 true leaves, they can be planted and planted. The seedling age is about 30 days. .
Third, colonization
When planting, it is planted in 2 rows per trough. The plant spacing is 30 cm, and 3000 plants are planted in acre.
Fourth, cultivation management
1 Fertilizer management
20 days after planting, topdressing is started. Each time, 10-15 grams of special fertilizer is applied to each plant. After 7 days, the fertilizer is applied once every time, and each plant is applied with 25 grams of special fertilizer. In addition, carbon dioxide fertilizer can be applied in the shed. Watering is usually done every 5 days after planting.
2 temperature, lighting management
After planting, the indoor temperature is 22 to 25 ° C during the day and 10 to 15 ° C during the night; after the fruit setting, the day is 25 to 28 ° C, and the night is about 12 ° C.
3 preserved fruit and fruit thinning
At 7-9 in the morning, use 10~15 mg/kg 2.4-D solution to increase the fruit setting rate, while leaving 3-4 fruits per plant, and the rest of the flowers and fruits should be removed in time.
V. Pest Control
The prevention and control of tomato pests and diseases is mainly based on agricultural control and biological control, supplemented by chemical control, and low-toxic and low-residue pesticides are selected to ensure that the products are free from pesticide pollution.
Sixth, harvest
It can be harvested when the top of the tomato fruit begins to turn orange after entering the green ripening period.
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