Culture and Flower cultivation of Cymbidium

Sword orchid, the scientific name is Gladiolus. It's not an orchid. It belongs to the bulbous plant of Cucurbitaceae.

Ecological habits: light-loving long-day plants, winter cultivation cloudy days to increase light, afraid of cold. The suitable growth temperature is 20 / 25 ℃ in daytime and 10 / 15 / ℃ in night. Through the dormant corms, the temperature sprouted at 4 ℃ 5 ℃, and the plants froze to death when cultivated at 0 ℃ in winter. Do not tolerate waterlogging and avoid stagnant water in the cultivated land. For the sandy loam with good drainage and fertile soil, the best pH value is 5.6. 6. 5.

1. Characteristic plant height 80,170 cm, corm oblate or oval, with annular nodes. Leaves 6-9, sword-shaped. Scorpion tail umbels, with 24 flowers, large flowers. Gladiolus like cool, not cold-resistant, afraid of extreme heat, requiring loose, fertile, moist, well-drained soil. The optimum temperature for growth was 20: 25 ℃ during the day and 10: 15 ℃ at night. Gladiolus is a long-day plant, and the light of 16 hours a day is the most suitable.

2. The variety Gladiolus is a multi-source and multi-generation hybrid, and there is no recognized unified species name so far. There are many classification methods of Gladiolus, which can be divided into spring flowers and summer flowers according to florescence, regular and irregular flowers according to flower arrangement, giant flowers, medium flowers and small flowers according to flower size, and can be divided into horn type, lotus type, flying swallow type and so on. The article is from: http://www.yuhuagu.com

3. The cultivation and management of ① production is mainly to plant corms, which are classified according to the size of bulbs in spring, and soak in the mixture of 1000 times of carbendazim and 1500 times of carbendazim for 30 minutes, then sprout under the condition of 20: 25 ℃, and can be planted in about 1 week. For the varieties with serious virus infection and obvious degradation, stem tip detoxification can be used to rejuvenate the plant. The conventional cultivation of ② gladiolus refers to the cultivation under natural conditions, and the bulbs with a diameter of more than 2.5cm are generally selected. There are two planting methods: ridge planting and border planting, with a depth of 5cm and 10cm. When gladiolus produces the second leaf, it is the time of flower bud differentiation, and it is particularly sensitive to environmental factors. In case of low temperature and weak light, the number of "blind flowers" increases. Generally, when preparing the soil, nitrogen 6kg, phosphorus 6kg, potassium 7kg are applied per mu. Topdressing is needed for 3 times in the whole growing season, that is, when the inflorescence is extracted from the leaves and 15 days after flowering, topdressing is needed. In order to promote the cultivation of ③ gladiolus, the dormancy of seed bulb should be broken first. After planting balls, dormancy can be broken under natural conditions from late autumn to early winter under the influence of low temperature. To promote cultivation, dormancy must be broken artificially, that is, after harvest, the bulbs were first treated with 35 ℃ high temperature for 15-20 days, then treated with 2-3 ℃ low temperature for 20 days, and then planted, which could germinate and grow normally. If it is required to supply flowers from January to February, it will be planted from October to November; if it is planted in December, it will blossom from March to May. That is, it takes 100 to 120 days from planting to flowering. The row spacing of 15 cm × 15 cm or 25 cm × 7 cm was 15 cm × 15 cm or 25 cm × 7 cm, with 40 bulbs per square meter. After planting, the temperature should be kept at 20: 25 ℃ in daytime and 15 ℃ at night. ④ can also be cultivated after postponement. After harvest, the bulbs were stored in 3-5 ℃ dry cold storage, and then planted in the greenhouse from July to August the following year. The management work was the same as that of promoting cultivation.