How to effectively prevent flowers and plants from dying in spring
Spring is a very suitable season for flowers and plants to grow, but in spring, many flower lovers' plants also end up dying. How can you effectively prevent flowers and plants from dying in spring? You might start from the following aspects.
Chinese rose (detailed introduction)
1. Water appropriately: for ordinary flowers and trees, the watering principle is not to water when dry, and to water thoroughly when you do.
2. Fertilize reasonably: the fertilizing principle for potted flowers is to apply thin fertilizer frequently, that is, the amount of each fertilization should be small but the number of fertilizations should be high. To meet the nutrient needs of flowers and trees, you can prepare a 0.5% urea liquid fertilizer or a 0.25% potassium dihydrogen phosphate liquid fertilizer for foliar feeding when necessary.
Excessive fertilization or too high a fertilization concentration will cause fertilizer damage.
3. Move out of the shed in time: do not move all flowers and trees out of the shed too early; wait until the weather conditions are stable before moving them out. Especially for newly potted flowers and trees, do not move them out of the shed too early and place them in sunlight; instead, keep them in the shed or in a cool, ventilated place for a period of care (generally moving them out after mid-April), and only after their growth is stable can they be gradually moved into sunlight.
4. Prepare the potting soil appropriately: when preparing the potting soil, consider not only its fertility status but also its pH value, to see whether it matches the biological characteristics of the flowers and trees being planted. If the pH value does not meet the requirements, prepare new soil according to the requirements as soon as possible.
5. Effectively prevent and control pests and diseases: to control scale insects and aphids, spray with 40% omethoate at 1000 times dilution or other insecticides; to control scarab beetles, use black lights to trap and kill adults, manually catch and kill adults, or use insecticides; to control damping-off disease, drench the roots with 70% thiophanate-methyl wettable powder at 1000 times dilution in the early stage of the disease.
How to protect carnation seedlings in spring in the southwest region
Spring is a good season for flowers and plants to grow, and in the southwest region of our country the light conditions are relatively favorable for carnations, but water and fertilizer still need to be supplied manually, so how should carnation seedlings be protected in spring in the southwest region?
Carnation
1. Watering
Among the four key elements, water is very important for the growth of carnation seedlings. In main production areas such as Kunming and Xichang, there is very little precipitation in winter and spring, and the climate is arid, which is unfavorable for carnation production. Growers need to water frequently to ensure the growth needs of the seedlings. According to Zhao Peifei of the Flower Research Institute of the Yunnan Academy of Agricultural Sciences, the "root-setting water" used when planting carnation seedlings is the key to affecting the survival rate of the seedlings. Before planting, the soil should be watered once to ensure that the soil reaches a relatively high humidity. In spring, the soil is especially dry. If planted directly, the soil will not only fail to promote seedling growth but will instead absorb water from the seedlings, causing them to die. After planting is completed, water again. This watering should be thorough. Spring winds are very strong, so there is no need to worry about watering too much.
2. Fertilizing
Carnations prefer soil with good fertilizer retention and require good aeration and drainage performance; it is best if it is rich in humus and mixed with coarse organic matter accounting for 30% to 40% of the soil volume, or peat mixed with perlite can also be used. If the soil has base fertilizer, then a thin fertilizer can be applied 15 days after planting. If the soil has no base fertilizer, the fertilization amount should be increased as appropriate. After the young seedlings have fully survived, begin applying nitrogen, phosphorus, and potassium fertilizers. These elements are needed throughout the carnation production period, but during the young seedling growth period, more nitrogen fertilizer should be applied. Nitrogen fertilizer is relatively favorable for leaf growth of young seedlings, and later the amounts of phosphorus fertilizer and potassium fertilizer can be increased. In addition, when fertilizing, try not to spray it on the leaf surface; just pour it on the soil around the roots. A fertilization frequency of 7 to 10 days is more suitable.
3. Light
Carnation is a cumulative long-day plant. The longer the cumulative daylight time, the more it promotes flower bud differentiation, thereby advancing flowering, increasing flower quantity, and improving flowering uniformity. In spring, the light intensity in the two main production areas of Kunming and Xichang is not high, which is relatively suitable for carnation growth, and growers do not need to use shade nets or other facilities. As the temperature gradually rises, shade nets and other facilities can be appropriately added when summer approaches. Rising temperatures will lead to an increase in pests, the more common ones being aphids and thrips, which can be treated with insecticides of different brands; alternating use gives better results, to prevent pests from causing leaf distortion. Compared with pests, there are not many diseases in the carnation seedling stage. Black spot and Fusarium wilt may appear later, and can be prevented by alternating treatments such as copper hydroxide and chlorothalonil.
Sharing small experiences in spring flower care
Spring weather is changeable. If you do not care for potted flowers carefully, the green plants that finally made it through winter may be lost in this spring.In March, the average temperature in most areas is above 10 degrees, and the lowest temperature is higher than 0 degrees; precipitation increases, and humidity rises; plants sprout, and the variety of flowering plants increases, and the earth already shows signs of spring. In April, the average temperature is generally above 15 degrees, and the highest temperature exceeds 30 degrees. It is the plant growth season, and most plants grow new buds. In May, the average temperature reaches as high as 20 degrees, and the lowest temperature is around 10 degrees, making it the best season for plant growth.
Sharing small experiences in spring flower care
Below, I will share a few small experiences in flower care with flower fans and flower enthusiasts:
1. Spring is windy and the air is dry, and it also happens to be the growth period of flowers and plants, so flowers consume more water than at any other time.
After winter, flowers and trees themselves have insufficient stored water and are very easily dehydrated and killed by the wind. Therefore, avoid letting hard wind blow directly on potted flowers. When the potting soil cracks from dryness, water in time. For ordinary flowers and trees, the watering principle is not to water when dry, and to water thoroughly when you do.
Sharing small experiences in spring flower care
2. Dead branches and fallen leaves after winter must be pruned away, so that branches and leaves are evenly distributed and light and air can pass through.
3. After various flowers enter the vigorous growth period, fertilizer and soil must be managed well. First, fertilizer must keep up. Newly revived flowers do not need fertilization at first; wait until branches and leaves grow out and the leaves are larger before fertilizing. Fertilize once a week or once every half month. Second, loosen the soil before watering and fertilizing.
4. If you want to repot, evergreen flowers are easiest to keep alive if repotted before they leaf out, and it is best to choose a cloudy day for repotting.
Sharing small experiences in spring flower care
5. Spring is a high-incidence period for viruses and pests. If prevention is not done in time, by the time the flowers are harmed, it will be too late to control the problem, so prevention is most important.
For flowers cared for in spring, the simplest way to prevent and control pests and diseases is to spray Bordeaux mixture once or twice a day on the leaf surface and the underside of the leaves.