How to plant daisy seeds?

Daisies, also known as spring chrysanthemum, Malan head flower, longevity chrysanthemum, etc., originated in Europe, and the original species are regarded as tufted weeds. They bloom in spring and are now cultivated all over the world. Garden cultivation in various parts of our country is used as ornamental plants in flower beds. It can be branched and propagated in cold areas that can spend the summer. Let's take a look at how to plant daisies seeds.

Sowing time

Daisies like cool climate, avoid heat, like light, and tolerate semi-shade. The optimum temperature for seed germination is 22-28 ℃, and the suitable temperature for growth is 20-25 ℃. The seeds are very small, with 4900 to 6600 seeds per gram, and most of them are sown in September, while in Zhejiang, they generally begin to sow in late July, mainly from late July to mid-August, when sowing New Year's Day is the heyday.

Sowing method

Daisy sowing selection of loose, breathable medium, the medium after disinfection, it is best to cover with vermiculite, a thin layer, with no seeds for the degree. Because the daisy seed is very small, it is not suitable for sowing, so it is generally used for sowing. When the seedling has 2 or 3 true leaves, it can be transplanted once. The suitable pH value of sowing medium is 5.8-6.5, the EC value is 0.5-0.75, the temperature is 18-20 ℃ after sowing, the humidity is 80-90%, and germination is 5-8 days.

Post-broadcast management

1. The first stage: maintain a temperature of 1822 ℃ and a humidity of 8090% after sowing. The radicle grows on the 5th and 8th day. After germination, it is still necessary to keep the medium moist, do not need to spray fertilizer, need to give light, but the germination time can not be too strong, still need proper shade. From July to August, it is still necessary to cool down by shading around noon.

2. The second stage: in this stage, the humidity is 70-80%, which can make the root penetrate into the medium to absorb nutrients for the extension of its cotyledons, and the temperature is controlled at 16-20 ℃ until the first pair of real leaves unfold. Fertilization can be started, mainly with 20-10-20 water-soluble fertilizer of 50ppm. After this stage, you can start a transplantation with a 288-or 128-point plate.

3. The third stage: this stage is the rapid growth period of seedlings, in order to prevent the medium from getting too wet, 20-10-20 and 14-0-14 special fertilizers of 50ppm are applied alternately. Because of the temperature and transpiration, liquid fertilizer is usually irrigated once every two or three days instead of watering, which is a more scientific method of water and fertilizer management in seedling production. According to the traditional method, if the fertilizer is irrigated at intervals, the concentration will be relatively increased to 70~100ppm. However, the medium should be slightly dried between watering or fertilizer, and alternating between dry and wet should be used to promote the growth of seedlings and the development of roots. When the seedling has 2-3 pairs of true leaves, the height of the seedling is 3-100 cm, and the root system is basically fully developed, the next stage of seedling refining can be carried out.

4. The fourth stage: at this stage, the root system of the seedling has grown well, and there are 3 pairs of true leaves. The seedling refining process before putting on the pot can be considered. The temperature is the same as the previous stage, and the humidity decreases slightly. Moisture control is particularly important at this stage. Apply 14014 water-soluble fertilizer, otherwise the seedlings are easy to grow. Therefore, it is necessary to have enough sunshine, strengthen ventilation, control temperature and humidity, and prevent it from overgrowing.