Planting method of cactus:

Tools/raw materials: potted cactus, flowerpot, culture soil, calcium superphosphate, potassium phosphate.

1. Configuration of cultivated soil Cactus is a desert plant, which is more suitable for acidic and weakly acidic soil environment. Because the root system of cactus is underdeveloped, the soil must be rich in organic matter, loose and breathable. Generally, humus exposed for 2 ~ 3 days is added with phosphorus and potassium fertilizer. Generally, 1 kg calcium superphosphate and 0.5 kg potassium phosphate are added to each 50 kg pot as base fertilizer.

2. The principle of rational water management is "Don't water, rather dry than wet". Don't water the cactus's heart. Generally, water it once every half month in spring and once a week in summer. It grows slowly in autumn and winter, and it is enough to water it once every 20 days. It should be noted that it is best to water the flowers with rain. If it is tap water, it is best to use it in the sun for two days.

3. Rational fertilization management: Peach water can be placed in a closed container for half a month and then irrigated. This kind of rice washing water is rich in nutrition and weakly acidic, which is very suitable for watering cactus. When necessary, topdressing, generally in spring and summer every year, with water application 1% potassium dihydrogen phosphate, 2 ~ 3 times a year.

4. Placing cactus in light control is a kind of plant that likes sunshine very much, but if the temperature exceeds 36 degrees Celsius, it should also be shaded. Cactus is not suitable for being kept indoors for a long time, which easily leads to the color blackening of cactus. Usually put it in the outdoor sun for 2 to 3 days, and then move back indoors. Pay attention to sunny places indoors.

5. Change pots and soil in time. Generally, when cactus grows in a pot for 2 to 3 years, the nutrients in the soil will be guaranteed to some extent, and it will also cause hardening of the cultivated soil. It's time to change the pot. Carefully remove the cactus from the original flowerpot, put a few pieces on the bottom of the new flowerpot to facilitate drainage and ventilation, and then fill in the culture soil prepared in the first step until 1/3. Compaction by hand, gently put in the dug cactus (cut off rotten roots, old roots and diseased roots), fill in the surrounding culture soil, gently lift the cactus to facilitate root extension, and finally fill in the remaining culture soil and compact.

6. Prevention of its pests and diseases The pests and diseases of cactus are mainly anthrax, canker, scale insect and whitefly, mainly to control water, ventilate in time and prevent. Carbendazim has a certain effect on anthrax, streptomycin is more effective on ulcer, but prevention is the main thing.

Matters needing attention

Cactus is a prickly plant flower, so you need to wear gloves when changing pots and transplanting to avoid stabbing.

When buying cactus, you should pay attention to the varieties with strong plants and strong resistance, and pay attention to the appearance without scars.