Cultivation of carnations requires certain methods. Carnations are herbaceous flowers with fibrous roots, and their roots like to grow in loose, fertile, well-ventilated soil or medium. Temperature has a qualitative and quantitative effect on the growth and development of carnations. The optimal temperature for growth and development is 19-21°C, and the temperature difference between day and night should be kept within 10°C. However, it should be noted that if the summer temperature is higher than 35°C and the winter temperature is lower than 9°C, the growth will be slow or the performance will be abnormal or even stop.

Introduction to Carnations: Carnations like sunlight and are suitable for planting in sunny places, which can promote the blooming of flowers. It is suitable for growing in fertile, permeable soil with a pH value between 5.6-6.4. It doesn't need much water and can't stand being wet. Likes to apply fertilizers and has more requirements in this regard.

How to grow carnations 1. Soil: The best soil for planting carnations is sandy loam. The ideal soil aeration gap accounts for about 30%. Heavy and silted soil is not good for the growth of carnations, so it needs to be improved. The core is to coordinate the relationship between the solid, liquid and gas phases in the soil.

2. Temperature: Carnation is a cold-loving plant. The optimal temperature for growth and development is 19-2l°C. The temperature difference between day and night should be kept within 10°C. If the temperature is too high during the day, carnations will have narrow leaves, small flowers, and poor branching. If the temperature is too high at night, there will be abnormal reactions such as weak stems, small flowers, and good color. If the summer temperature is higher than 35 degrees and the winter temperature is lower than 9 degrees, the growth will be slow or abnormal or even stop.

How to grow carnations 1. First of all, the most suitable environmental temperature for the growth of carnations is 13-25 degrees, and the lighting conditions are controlled at 6-8 hours a day. The frequency of watering should be controlled, and the pot should be watered thoroughly. The surface should not be watered until it is dry.

2. Then pay attention to choosing clay soil with good drainage, rich humus, good fertilizer retention performance and slightly alkaline. Before planting, apply enough base fertilizer to the basin. Carnations are most suitable for propagation by cuttings. No time limit

3. Tips for pot selection: Choose a tall pot with a large inner diameter, pay attention to light, and avoid drought and floods. Carnations are in a semi-dormant state in midsummer and avoid exposure to the scorching sun.

How to water carnations at home? Carnations are shallow-rooted flowers. The planting depth should not exceed 2 cm. Water them once after planting and then water them again when the pot soil is dry. Carnations are not resistant to moisture. Except for increasing the amount of watering during the vigorous growth period, flowering period and midsummer, generally watering should not be too much and the soil should be kept at a certain humidity. Avoid making the soil too dry or too wet during the flowering period.

Carnation pruning and shaping methods should be carried out 1-2 times during the seedling stage to promote branching so that each plant has about 10 lateral branches. After topping, the plant shape is beautiful and the flowers bloom profusely. As the branches grow, supports should be set up to prevent them from falling over. During the growth period, the side buds and small flower buds produced on each branch should be removed in time, and only one flower bud at the top of each branch should be retained so that nutrients can be concentrated to supply the top bud.

Carnation care precautions: Carnations are generally brought into the greenhouse before and after frost, and the temperature control is most suitable at 10-20°C. In order to delay the flowering period, the temperature can be adjusted higher or lower appropriately. Try to reduce the humidity in the greenhouse to reduce the occurrence of diseases.

Prevent yellowing of carnation leaves. If you use insufficiently fertile, alkaline flower soil when maintaining it, or if you have not replaced the flower soil for many years, it may turn yellow because the soil is not suitable. leaf. Treatment method: At this time, you need to prepare some soft, breathable, slightly acidic flower soil. Then remove the plant from the pot and wash the roots, then plant it in new flower soil for maintenance.

How to avoid root rot with carnations. Carnations are herbs of the Caryophyllaceae family and the genus Dianthus, which require soil conditions that are fertilizer-preserving and have good ventilation and drainage properties. The soil is too sticky and has poor water retention and air permeability, which can easily cause root rot. The best solution is to enlarge the soil particles and add some large-particle materials, such as perlite, to the soil to enhance its breathability and water retention. This is beneficial to the growth and development of the root system.

How to prevent and control carnation diseases and insect pests 1. Leaf spot disease. Also known as stem rot, it is a serious disease of carnations. It mostly occurs on leaves and stems, and sometimes on buds and flowers. The disease usually starts from the lower part of the leaves, with light green water-soaked small round spots first appearing, and then gradually turning purple. As the lesions expand, the center of the lesions dies.

Prevention and control methods: After picking buds and cutting flowers, you can use 75 chlorothalonil, 70 generation mancozeb or 80 generation mancozeb wettable powder 500 times solvation spraying, you can also spray 1 Bordeaux mixture for control , the effect is very good. If the disease occurs during the growing period, diseased leaves or diseased plants should be removed promptly and the above-mentioned chemicals should be sprayed to prevent the disease from spreading.

2. Gray mold. This disease mostly occurs on petals and buds, and occasionally on stems and leaves. After the petals become infected, at first the edges of the petals appear light brown and water-soaked, and gradually most of the petals are invaded and multiplied by gray fungi. At this time, if the temperature is high and the humidity is high, it is easy to cause rot. When the disease occurs on the flower buds, water-soaked irregular spots appear and gradually rot, preventing the entire flower bud from opening.

Prevention and control methods: Pay attention to indoor ventilation and light transmission, reduce humidity; remove diseased plants promptly; spray 75% chlorothalonil wettable powder 500 times every 15 days or so, spray 2-3 times continuously , effective and good control effect. If rust occurs on carnations, spray 800 times sodium dichloride solution.

3. When carnations are damaged by aphids, spider mites, etc., you can spray 40 dimethoate emulsion 1000 times or 80 dichlorvos emulsion 1000 times to prevent and control it.