Propagation method and cultivation method of cactus Hu Jin

Propagation method of opuntia Hu Jin 1, sowing method.

The seeds harvested in that year have high germination rate. Choose full Jincheng seeds (black) in spring or autumn; Soak the seeds for two days to accelerate germination, and then sow the soil. About 7 o'clock? /kloc-germinate in 0/0 day. Press 5 when the ball reaches 1 cm. The spacing between plants is 5 cm. When it grows to 4 cm, it can be planted, one in a small pot. 30 ~ 40 days after germination, the seedling ball is the size of rice grain or mung bean, which can be transplanted or grafted on rootstock to promote growth.

2. Bulb grafting method

Graft the seedlings cultivated for more than 3 months on the twig measuring ruler to accelerate the growth. When the scion grows to a certain size or the rootstock can't support it, it can be cut, dried and potted by cutting. In an environment with fertile soil and good air circulation, the seedlings without grafting grow rapidly. Potted seedlings or grafted bulbs should be placed in a semi-shady place to avoid direct sunlight. After 7 ~ 10 days, the bulb will not shrink, that is, it will survive.

3. Cutting method

This is the most commonly used breeding method, which can be carried out all year round. The key to survival is to cut mature small pieces from the mother plant, put them in the shade for half a day, and then cut them again. Cuttings should be made of materials with good air permeability, water retention and drainage, such as perlite, vermiculite and river sand. After cutting, the sand can be slightly wet without watering.

4. Grafting method

Grafting propagation can promote growth and blossom ahead of time. In the growing season, grafting can be carried out at any time except in the period of high temperature and humidity, because the incision is perishable, but September is the most suitable time. The rhizome is triangular and has a strong affinity with Hu Jin. When grafting, first make a cross section on the proper height of the rootstock, then make a cross section on the lower part of the scion ball, immediately stick the scion on the cross section of the rootstock after cutting (pay attention to at least closely connect the scion with a part of the vascular bundle in the center of the rootstock), and then vertically bind it with thin lines to closely connect the upper and lower incisions. After grafting, put the flowerpot in a slightly shady place, cover it with plastic film, keep the air humidity, and release the bondage after 3 to 7 days.

Cultivation method of Hu Jin cactus Hu Jin cactus likes high temperature and dry environment. In winter, the room temperature should be kept above 20℃ during the day and not lower than 5℃ at night. Too low temperature is easy to cause root rot. When the temperature in the north is low in winter, you should stop watering and put it indoors above 5℃.

Hu Jin cactus needs plenty of sunshine, but it can't be exposed to strong light in summer, so it needs proper shade. Indoor cultivation can use light to make it grow healthily.

The soil for potted Hu Jin cactus is calcareous sandy soil (or sandy loam) with good drainage and air permeability, which can be mixed with sandy loam, humus soil and coarse sand, and limestone gravel or old lime wall fragments abandoned during the demolition of old buildings, or mixed with loam, coarse sand, broken bricks, humus soil and old lime wall fragments. When breeding, a small amount of broken bricks should be placed at the bottom of the basin to make the drainage smooth.

It is best to plant pots in early spring, and the flowerpots should not be too big, so that the spheres can be accommodated with a slight gap. The flowerpot is too big to be absorbed after watering, and the air in the pot is blocked, which is easy to rot the roots. A few species are taproot, bird feather jade, giant elephant ball and so on. Need a deeper cone. For varieties with shallow roots, such as silver hair balls and grandson balls, shallow ordinary flowerpots can be used.

Hu Jinxian's Feng Shui Taboos and Precautions: Hu Jin likes sunshine, but he needs shade in summer. When the temperature reaches above 35℃, it should be shaded around noon to avoid strong sunlight burning the ball. /kloc-0 before morning or after 5 pm, it can be placed in the sun to promote more buds, avoid excessive shading, make the ball longer and reduce the ornamental value. The overwintering temperature is maintained at 8 ~ 10℃, and the basin soil is kept dry.

Summer is the peak season for the growth of Jinhu Lake, and the water demand increases. In case of drought, water frequently, preferably in the early morning and evening, to avoid pouring too cold water at hot noon, which is easy to cause? Catch a cold? And cause diseases. If the soil in the basin is too dry at noon, you can spray less water to make the basin surface wet, and you can't spray water on the top of the ball and grafting parts to avoid water rot. Apply 1 ~ 2 times of dilute fertilizer solution containing nitrogen, phosphorus, potassium and other components about half a month during the growth period, and then clean and water it. Organic fertilizer should be fully decomposed and the concentration should be appropriate.

Jinhu Lake has strong resistance to diseases, but in summer, due to humidity, heat, poor ventilation and other factors, diseases and insect pests such as red spider, scale insect and whitefly are prone to occur, so prevention and control should be strengthened. We should strengthen the prevention and control of diseases and insect pests such as red spider, scale insect and whitefly. Spraying 40% dimethoate or 90% trichlorfon 1000 ~ 1500 times to control red spider. When scale insects and whiteflies are found to be harmful, they can be eliminated manually.