Big commander is a rare variety of cactus. Its flowers are huge. There is a long process from a small bud to flowering. Even on the day of flowering, if there is not enough light, flowering is slow. So how did the great commander breed? Follow Xiaobian to read down!
The best breeding time: sowing can be carried out in autumn when the climate, soil and temperature are suitable, and sowing can be carried out as soon as it is picked; Cutting should be carried out in late April or early May;
The best growing soil: the general had no strict requirements on soil, but the fertile and loose neutral sandy soil was better;
Growth humidity requirements: the cultivation of the commander needs to keep the soil moist;
The best growth temperature: the best growth temperature of big commander is 20 ~ 30 ℃ ° C；
The best growth light: big command like warm and sunlight, avoid exposure.
The cultivation method of the great commander
The fertilization of the commander should be based on dry manure and supplemented by liquid fertilizer. Because this kind of flowers are mostly cultivated in the balcony and windowsill, topdressing organic liquid fertilizer, easy to send out an intolerable smell, so we should try to use or not, so as not to pollute the environment. In the growing season, it is necessary to topdressing liquid fertilizer. A small amount of organic fertilizer can be used, and an appropriate amount of chemical fertilizer can be added. Because chemical fertilizer has the advantages of high efficiency, speed, convenience and sanitation, it should be vigorously promoted. The commonly used fertilizers are urea, potassium dihydrogen phosphate and other three element fertilizers, as well as various fertilizer tablets. However, this kind of fertilizer must be used according to the instructions, and the concentration is generally not more than 0.1%. It is not allowed to increase the concentration at will, so as to avoid damaging the root system and apply light fertilizer frequently. At the same time, in the morning of the next day after each fertilization, water should be irrigated once, so that the soil is fertile and moist, which is more conducive to plant absorption. In midsummer and severe cold, fertilization should be stopped in order to make plants over summer and jelly.
Watering points:
Due to the dry environment, the basin soil water evaporates quickly, especially in the growing season. In order to prevent the basin soil from being too dry and dehydrate the plants, water should be added at any time. Generally, water should be added 2-3 times a week. In summer, when the soil is semi dormant, the watering should be wet and dry, that is, when the soil surface is hard and white, the water should be poured thoroughly. In order to avoid the occurrence of large and permeable basin, the basin soil should not be too full, and the soil surface should be at least 2 cm away from the basin edge, so as to facilitate soil loosening and watering, and increase the soil permeability. Watering in summer depends on plant growth and climate. Generally, it is best to water before 10 a.m. and after 5 p.m. Watering in autumn is the same as that in spring, and it can be done once or twice a month in winter.
Basin soil replacement:
The commander can change the soil every year to increase the soil fertility.
The cultivation method of big Commander
Breeding points:
The methods of sowing, cutting and grafting were used in the propagation of big commander.
Sowing: it can be carried out in autumn when the climate, soil and temperature difference are suitable. At the same time, seed reproduction can not only maintain the good shape of female parent and strong resistance, but also produce a large number of seedlings for market demand.
Cutting: in the cutting of the commander, the first problem is to solve the source of the ball. The ability of sprouting new buds was low and most of them grew independently. In order to obtain the bulblet, the breeder can cut off the growth point at the top of the mother bulblet to promote the germination of new buds on the top part of the bulblet. After such attack processing, generally each cue can germinate dozens of particle balls. Therefore, the management of water, fertilizer, temperature and light should be strengthened to promote the growth of pellets. Generally, after 1-2 years of application and growth, when the ball is 1.8-2 cm, it can be cut off from the mother ball for cutting propagation.
The cutting of Datong collar ball should be done in the morning on a sunny day. The ball should be strong, delicate, bright green and strong. During the operation, use a sharp knife to cut off the ball at the position just away from the ball, apply lime to the incision, disinfect the wound, and put it in a ventilated and dry place. After two days, the cutting can be carried out.
Grafting: the most fundamental problem in the grafting propagation or cultivation of the great commander is to combine the rootstock and scion into a new body through grafting techniques. However, in practice, it is inevitable that there will be differences in stem shape, body size, seedling age and other aspects. If you encounter these situations, you must make a good comparison before grafting to make it as close as possible. When grafting, it is necessary to find out the central vascular bundles of the two. It is better that the central vascular bundles of the rootstock and scion are basically equal. After the flat grafting, the two grafts overlap, which is the key to the survival of grafting.
Pest control:
The main diseases are stem rot, red spider and scale insects.
The cultivation method of big Commander