Fruits and vegetables that can be soilless cultivated are: tomatoes, cucumbers, bitter melons, strawberries and radishes. Leafy vegetables include lettuce, celery, coriander, Chinese cabbage, small rape, water spinach, mugwort and so on. These dishes have different degrees of maturity. Fruits and vegetables generally last for 3-5 months, and leafy vegetables generally last for 2-3 months. The temperature requirement of fruits and vegetables is about 10-25 degrees, and the requirement of leafy vegetables is relatively small, which is suitable for general family planting. Vegetable seeds are sold in agricultural research institutes and seed companies all over the country.

Second, the equipment preparation

Waste plastic cups with holes in the bottom are used for seedling raising. Plastic flowerpots or foam plastic boxes (with holes at the bottom) have trays at the bottom. Don't use clay pots. 0.5kg+ of pottery gravel+perlite 1-2 kg (available in building materials stores), vermiculite, peat and rock wool can be used. Concentrated nutrient solution is divided into 1 and No.2, which must be used by comprehensive dilution. 2 bottles don't need empty plastic bottles (for diluting nutrient solution).

Third, raise seedlings.

Species invasion. Seeds must be soaked in warm water at 32 degrees for 6 hours. Soak the substrate. Soak the pottery gravel and perlite in water for later use. Sow seeds. Seedlings are raised in plastic cups with soaked substrates, holes are dug with fingers, 2 seeds are planted in each hole for fruits and vegetables, ditches are dug for leafy vegetables, and seeds are sown along small ditches. Cover with substrate, lightly press, cover with plastic bag or film, and wait for emergence.

Fourth, management.

Pour the liquid. After emergence, the diluted nutrient solution should be watered 1-2 times a day, and the exudate in the dish is appropriate. Vegetable seedlings. When the seedlings grow two leaves, they begin to be sparse, leaving only one seedling in each hole and pulling out the extra seedlings. Change the basin. When the seedlings grow to have 3-5 real leaves, they need to change the big pots. First, lay a layer of soaked pottery gravel on the bottom of the basin to facilitate drainage, then lay perlite, transplant the seedlings together with the substrate into the big basin, and finally cover the perlite with a layer of pottery gravel. After changing the pot, pour the liquid thoroughly for the first time, and it is advisable to ooze from the tray. Pour the liquid. Watering leafy vegetables once every two days and twice a day, and watering fruits and vegetables only twice a day, without watering.

The vegetable varieties mentioned in the family soilless culture method are all available in our life, and the instruments used are also cultivated by using some discarded bottles and cans produced in our life. The method is very green and ecological, and also has a certain beautification effect on the family.