A string of red, also known as Western red, firecracker red, native South American Brazil, is a labia species of the plant. A common list of red products are the "Betty" series, the "Novice" series, the "Saisa" series, the "Outlook" series, and the "Victoria" series. Colors are: scarlet, orange red, lavender, purple, wine red, red and white color, rose color, white, mixed color and so on.
Morphological characteristics and growth characteristics
A string of red annual herbaceous flowers, plant height 25 ~ 30cm, plant dwarf, beautiful plant shape, inflorescences in series, bright red color, long flowering period and not withered, not only suitable for planting open field flower beds, but also suitable for potted plants.
A bunch of red hi warm good sun, the optimum growth temperature is 20 Â°C ~ 25 Â°C, can withstand high temperatures, but the summer high temperatures when the growth and development weakened, growth retardation above 30 Â°C, plant and flowering will have poor performance. Growth stops above 35Â°C. Leaf yellowing below 7Â°C will fall off, and below 3Â°C will suffer frost damage or stop growing. A bunch of red is not like many water, management should control the watering, that is, do not dry, pouring is drenched. Phosphorus and potassium fertilizers during growth.
Can be divided into seed propagation and cutting propagation.
(1) Seed treatment: Seeds can be soaked in warm water of 25Â°C to 30Â°C for 6-8 hours before sowing, and then washed in gauze to wash the surface of mucus, and then sowing can be carried out directly. 6-7 days About sprouting and sprouting; can also be sowed after the first germination, that is washed in wet bag, put in 20 Â°C ~ 25 Â°C environment germination, rinse with warm water 2 to 3 times a day, about 5 to 6 days after the seed germination You can sow.
(2) sowing method: a. plug seedlings: in each cubic meter of medium (about 20 bags) add thiophantine powder 150 ~ 200g, stirring 2 ~ 3 times, so that the drug and the media are fully mixed, and then spray water While stirring, transfer to the medium can be hand-held into a group, loose rather than casual. 8 to 10 hours after stacking in the plug tray, stacking with a film cover. Put one seed per hole. After sowing, gently squeeze the seeds to bind the medium. Then use a sprayer to spray water and cover with newspaper or plastic film. To keep the newspapers moist for a long time, turn the newspapers open after the seeds have sprouted. b. Seedling nursery: yellow mud, peat, and perlite are mixed in a ratio of 4:2:1 to form a nursery medium. The seedbed is first wetted with water, and the seeds are mixed with fine sand at a ratio of 1:4 to be evenly spread on the seedbed. On the top, after sowing, a thin layer of thin wood ash is covered, and the soil is kept moist. Under the condition of adequate lighting at about 30Â°C, seedlings can emerge in about 5 to 6 days. When sowing, it should be uniform, wet and warm. Uniform refers to uniform sowing and even soil coverage; wet refers to medium and seedbeds kept moist after sowing and before emergence; warm refers to maintaining relatively high temperature during seeding and before sowing. This stage of management The good or bad will directly determine the level of emergence and the quality of seedlings.
(3) Seedling management: after the cotyledon grows, 3000 times liquid urea can be used for spraying. The seedling stage is prone to damping-off. It can be sprayed with 800 to 1000 times of liquid, such as Enkeson, Thiophanate, and Carbendazim. Spray once every 7 days. Moisture can be properly controlled to promote root growth to prevent lodging.
Cutting propagation Select the healthy plants without pests and diseases in the current year as the female parent and cut new shoots on the female parent. The cutting length is generally maintained at 2 to 3 knots. Then use â€œroot sunâ€ rooting agent 400 times liquid and yellow mud to mix into mud, cut the cuttings and cut the mud, and then insert the seedlings after treatment. The cutting medium can be directly used with coarse sand, and the temperature is in the range of 25Â°Cï½ž28Â°C. , 8 to 10 days after transplantation can be transplanted on the basin. The management of cutting seedlings is relatively convenient. No fertilizer is used throughout the seedling period, and water can be sprayed once a day.
Cultivation medium preparation
Yellow mud, sawdust, and mushroom puree are mixed in a ratio of 6:3:1 and then stacked for six months.
Cuttage seedlings can be transplanted when the roots grow to 5-7 mm. If seedlings are used to raise the seedlings, the pots should be transplanted in 2 to 3 pairs of true leaves. Immediately after pouring the pots, water must be poured to avoid direct sunlight. If the seedlings are placed under the strong sunlight, they should be covered with a shading net. 4 days. Plug seedlings are not covered with shading mesh because the roots of the plug seedlings have a soil matrix. Topping
Immediately after planting, the heart was picked to promote branching, to prevent shoots and shoots from becoming long, thinning the stem, controlling the height of the plant, increasing the number of flowers and the number of seeds. Generally when the seedlings have 4 to 5 true leaves for the first picking, if it is to be used for cutting propagation of the cuttings, it can be picked in 8 to 10 true leaves, and the second picking is to grow to 3 to 4 slices. When the true leaves can be picked off the top buds, each picking the heart only on the basis of the original to leave 2 to 3 knots is appropriate, in order to promote the plants dwarf, plump, dense flowers. A bunch of red flowers many times during growth. In general, the temperature of 20 Â°C ~ 25 Â°C and short-day conditions, will remove the remaining buds, the new shoots by 15 to 20 days of growth and flowering. Therefore, after a string of red blossoms, we must cut off the residual flowers in time to reduce the consumption of nutrients and promote flowering again.
Water and fertilizer management
Should control the watering, do not do not water, otherwise it is prone to yellow leaf defoliation, resulting in large branches and sparse, less flowering. During the growing period, the demand for phosphorus and potash fertilizers is relatively high. The amount of fertilizer must be increased in time. The chicken manure is mainly applied, and nitrogen fertilizer is less applied to meet the growth needs. A 0.2% dihydrogen phosphate can be applied once every 10 days. Potassium solution. Especially after each bud removal, we should pour enough water. After one week, we must apply fertilizer and water, and then dilute the water fertility and increase the P and K fertilizers appropriately to promote the growth of new shoots and flourish.
A bunch of red is a positive plant. The growth and flowering require sufficient sunlight. Adequate light also helps prevent plant growth. However, in areas with strong light, direct sunlight should be avoided, and sunny days should be shaded appropriately.
After the basin, the temperature can be reduced to 18Â°C, and the temperature can be lowered before and after flowering to form a good plant type. Generally speaking, the plant will not be subjected to freezing injury above 5Â°C, and it can grow well at 10Â°C to 30Â°C. . Summer temperatures, such as temperatures above 35Â°C, are unacceptable for most species unless they are extremely short or occasionally.
Flowering period control
To ensure that a string of red energy blossoms on time in all major festivals throughout the year, in addition to grasping the above technical management, it is also necessary to determine the final picking time to achieve accurate flowering control. After a series of red flowers have been removed, if the water and fat keep up, they can bloom again. The schedule is the author's string of red planting time and the last picking time in Zhuhai, Guangdong, which can all achieve the purpose of flowering control.
The main diseases are damping-off, leaf spot, downy mildew and mosaic disease. (1) The damping-off disease can be controlled by 800-1000 times of the anti-virus maggots; (2) leaf spot, downy mildew, 5% zeocin-zinc wettable 0.2% solution spray; (3) mosaic disease, also known as mosaic disease A string of red virus disease, the performance of the symptoms of yellowing leaves, wrinkles, smaller, the whole atrophy is not long, until death, because the disease is mostly caused by the propagation of locusts, in the prevention and control should be used to kill disease prevention methods, When the leaves are severely yellowed, it can be used as a Victorian fruit, that is, ethylenediaminetetraacetic acid iron is sprayed 2,000 to 3000 times for 1 or 2 times, once a week, the effect is better, and green is faster.
Insect common pests are whitefly, aphids, and spider mites. (1) The whitefly sucks plant sap and causes leaf discoloration, curling, and atrophy, and it is often used as a vehicle for various toxins. It can be sprayed and killed by the enemy's 0.01% solution. If it is in a confined environment such as a greenhouse, the use of fumigant Strong Shedworm II will have a better fumigation effect, 2 or 3 times in succession, and will completely eliminate the greenhouse whitefly; (2) Aphids are usually concentrated in tender shoots, young leaves, and tender Sap sucking sap on the branch, causing atrophic deformation of the affected parts of the plant, the aphids also secrete honeydew-contaminated plants, and induced coal pollution and other diseases, can be used to kill the Wanling 600 ~ 800 times liquid; (3) red spiders more in the back of the leaf Leaf suction juice, often causing discoloration and even leaf curling, can be sprayed with 0.01% dicofol solution.
Pay attention to the need to strengthen water and fertilizer management in peacetime and find out that pests and diseases are prevented and treated early.
Planting Time Festival Flowers From Transplantation to Flowering Days Last Picking Distance Holiday Days Remarks
October 7New Year's Day 83
25Planting with 7-inch pots
February 15"May 1" 7525 planted with 7-inch flower pots on July 20 "11"
7020 High temperature survival rate Low Lunar October First Lunar New Year 9030 Planted in 7-inch pots
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