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, there are also many flower friends whose flowers will die. How can we effectively prevent flowers and plants from dying in spring? You might as well start from the following aspects.

Rose (details)

1. Appropriate watering: for general flowers and trees, the principle of watering is that if you don't dry or water, you will water thoroughly.

2. Rational fertilization: the fertilization principle of potted flowers is that the amount of fertilizer applied each time should be less, but the times of fertilization should be more. In order to meet the nutrient needs of flowers and trees, 0.5% urea liquid fertilizer or 0.25% potassium dihydrogen phosphate liquid fertilizer can be prepared for foliar fertilization if necessary.

Excessive fertilization or too high concentration of fertilizer will cause fertilizer damage.

3. Get out of the shed in time: all flowers and trees should not be moved out of the shed prematurely until the weather is stable. In particular, the flowers and trees in the new pot should not be moved out of the shed and exposed to the sun prematurely, but should be maintained in the shed or in a cool and ventilated place for a period of time (usually out of the shed after mid-April) before they can be gradually moved to the sun after their growth is stable.

4. Proper preparation of basin soil: in the process of basin soil preparation, not only its fertility but also its pH value should be considered to see whether it accords with the biological characteristics of the flowers and trees planted. If the pH value does not meet the requirements, the new soil should be prepared as soon as possible.

5. Effective prevention and control of diseases and insect pests: control of shellfish and aphids with 1000 times of omethoate or other insecticides; control of beetles with black light trapping adults, manual killing of adults or insecticides; control of blight disease can be irrigated with 1000 times of methyl topiramate wettable powder at the initial stage of the disease.

How to protect the seedlings of Carnation in Southwest China in Spring

Spring is a good season for the growth of flowers and plants, and in the southwest of China, the light conditions are more favorable for carnations, but water and fertilizer still need to be given artificially, so how should the southwest region protect the seedlings of carnations in spring?

Carnation

First, watering

The water in the four elements is very important for the growth of carnations at seedling stage. Kunming, Xichang and other main producing areas have little precipitation in winter and spring, and the climate is dry, which is disadvantageous to the production of carnations. Growers need to water frequently to ensure the growth of seedlings. According to Zhao Peifei of the Flower Institute of Yunnan Academy of Agricultural Sciences, the "fixed root water" planted under carnation seedlings is the key to affecting the survival rate of seedlings, and the soil should be watered before planting to ensure that the soil achieves higher humidity. The soil is very dry in spring. If it is planted directly, the soil will not promote the growth of the seedlings, but will absorb the water in the seedlings, causing the seedlings to die. After the cultivation is finished, water it again. Water thoroughly this time. It's windy in spring, so you don't have to worry about watering too much.

II. Fertilization

Carnations like soil with good fertility and require good ventilation and drainage, preferably rich in humus, mixed with crude organic matter that accounts for 30% to 40% of the soil volume, and can also be mixed with peat into perlite. If the soil has base fertilizer, thin fertilizer can be applied 15 days after planting. If there is no base fertilizer in the soil, the amount of fertilizer should be increased as appropriate. After the seedlings have fully survived, it is necessary to start applying nitrogen, phosphorus and potassium fertilizers, which are needed during the production of carnations, but more nitrogen fertilizers should be applied during the growing period of seedlings. Nitrogen fertilizer was beneficial to the leaf growth of seedlings, and the amount of phosphate and potassium fertilizer could be increased in the later stage. In addition, when applying fertilizer, try not to spray it on the leaf surface, but sprinkle it on the root soil, and the frequency of fertilization is 7 to 10 days.

Third, lighting

Carnation is a cumulative long-day plant, the longer the sunshine accumulation time, the more can promote flower bud differentiation, and then early flowering, increase the number of flowers and improve flowering uniformity. The light intensity in the two main producing areas of Kunming and Xichang in spring is not high, which is suitable for the growth of carnations, and it is not necessary for growers to use shading nets and other facilities. As the temperature rises gradually, facilities such as sunshade nets can be appropriately increased as summer approaches. Rising temperatures will lead to an increase in insect pests, the more common are aphids and thrips, which can be treated with different brands of pesticides, which can be used alternately to prevent leaves from twisting caused by pests. Compared with insect pests, there are not many diseases in the seedling stage of carnations, and Fusarium wilt caused by black spot and Fusarium may appear in the later stage, which can be prevented alternately with chlorpromadil and chlorothalonil.

Experience of growing flowers in spring sharing the changeable weather in spring, if you don't take good care of the potted flowers, you may not be able to survive the green plants in winter, which will be damaged this spring. In March, the average temperature in most areas is more than 10 degrees, and the lowest temperature is higher than 0 degrees. With the increase of precipitation, humidity and the increase of plant germination and flowering species, the earth has shown the meaning of spring. In April, the average temperature is more than 15 degrees, and the highest temperature is more than 30 degrees. It is the plant growing season, and most plants grow new buds. The average temperature in May is as high as 20 degrees, and the lowest temperature is about 10 degrees, which is the best season for plant growth. Spring flower growing experience share the following with pollen fans to share a few flower cultivation experience: first, spring wind is strong, the air is dry, and coincides with the growing period of flowers and plants, flowers consume more water than at any time. Their own flowers and trees do not have enough water after the winter, and they are easily dehydrated and withered by the wind. So to avoid the hard wind blowing pot flowers, basin soil should be timely watering when dry cracking, for general flowers and trees, the principle of watering is not dry do not water, watering is thoroughly. Spring flower cultivation experience sharing 2. The withered branches and leaves after winter must be pruned so that the branches and leaves are evenly distributed and ventilated. Third, after all kinds of flowers enter the prosperous period of growth, the fertile soil should be managed well. First of all, the fertilizer should keep up, and the newly recovered flowers do not need to fertilize, wait for the branches and leaves to grow, fertilize when the leaves are bigger, and fertilize once a week or half a month, and secondly, loosen the soil before watering and fertilizing. Fourth, if you want to change pots, evergreen flowers are most likely to survive before sending leaves, and it is best to choose to change pots on cloudy days. Spring is a period of high incidence of viruses and insect pests. If prevention is not done in time, it will be too late to prevent and cure the flowers, so prevention is the most important. For flowers raised in spring, the simplest way to control diseases and insect pests is to spray Bordeaux solution on the back of the leaves once or twice a day.