During the day, plants will carry out photosynthesis and release oxygen, but at night, plants will have dark reactions. At this time, plants also need oxygen as nutrition to have dark reaction. Therefore, in a relatively closed room, it is not advisable to put too many green plants. So as not to cause plants to compete with people for oxygen at night.
cutting
Hydroponic radish is propagated mainly by cutting. In late spring and early summer, cut off 65,438+0.5 cm to 30 cm branches and 65,438+0 to 2 leaves at the base. Potted plants are directly planted with culture soil, 3-5 plants per pot, watered and planted in a cool and ventilated place to keep the pot soil moist. They can take root and sprout in a month or so, and grow into ornamental plants that year. Cutting with branches in spring and summer is easy to take root; Totem columns must be sharpened with leaves, so that the shape is faster. Hydroponics can also be used for hydroponics, but the plants are smaller than those planted in soil. It takes about a week for the newly-cut hydroponic radish to take root.
Temperature and photosynthesis
In the north of autumn and winter, in order to make up for the shortage of temperature and photosynthesis, the illumination should be increased. The method is to put hydroponic green radish in the best indoor light, or move to a sealed balcony at noon to bask in the sun. At the same time, when the temperature is low, try to open the window as little as possible, because in a very short time, the leaves may be frostbitten. When the room temperature is above 10℃, hydroponic radish can overwinter safely, and when the room temperature is above 20℃, hydroponic radish can grow normally. It is not a big problem for ordinary families to reach this temperature. It should be noted that the temperature difference is too large, and the leaves should not be close to the heating equipment.
Water quantity room temperature
The watering amount in autumn and winter should be strictly controlled according to the room temperature. Before heating, the temperature is low, so to reduce watering, the water quantity should be controlled between the original 1/4- 1/2. Even after heating, don't pour water too often, and pour less water into the basin. The water should seep through the brown silk. In addition, water should be sprayed on the aerial roots of the palm column to reduce the insufficient water absorption of the roots caused by excessive evaporation. The water poured in winter is better to bask in the sun for a day, and the water is too cold to damage the roots. ? Plants grow slowly or even stop growing in autumn and winter, so fertilization should be reduced. Before winter, it is mainly liquid inorganic, and the time is about 15 days. Fertilization is mainly sprayed on the leaves after winter, mainly through the stomata on the leaves, and the fertilizer is absorbed through the stomata on the leaves, so the fertilizer effect can directly act on the leaves. Special fertilizer should be used for foliar fertilizer, and ordinary inorganic fertilizer is not easily absorbed by foliar.
Cultivation management
The hydroponic radish grows rapidly and its cultivation management is extensive. In the process of cultivation management, the plants should be sprayed with water in summer and supplemented with nutrient solution every 10 day to keep the leaves green. Potted seedlings should be cut off when they grow out of the cultivation column 30cm; When the foot leaves fall off 30%-50%, it should be abandoned and replanted. Potted plants with green columns are ideal plants for courtyard doorposts and wall greening, and their leaves are also well arranged and matched. 4-5 plants are planted in each pot or directly cutted, and a brown column is set in the middle of the pot to facilitate the winding growth of hydroponic radishes. Plastic pruning is carried out in spring. When the stems and vines are covered with brown columns and the tips are about 20 cm beyond the brown columns, cut off the stems and tips of 2-3 of them by 40 cm. When new buds and leaves germinate after short cutting, the shoot tips of other plants are cut off.