How to plant seeds (when to plant them) the method of potted planting

Mantianxing is a kind of plant with strong vitality, which grows best in a warm climate. The full sky star is now a very popular flower, which is very popular because of its beautiful appearance. There are still many people who want to grow it, but before planting it, you need to have a comprehensive understanding of its planting technology.

How to plant the seeds (when to plant them)

1. Soil. In fact, there is no need to buy flower soil, just go outside and dig some. Before planting, soak the soil thoroughly, set and then sow seeds, cover it with a thin layer of soil, sunlight and temperature are essential, the watering principle is dry and transparent, and the amount of water should be reduced at the seedling stage. With the growth of the star, there will be a phenomenon of overgrowth, which needs to be fixed by constantly adding soil, not too dense. If planting is more careful, it is recommended to disinfect the soil before planting and expose it to the sun for a few days.

2. Seedling raising: choose loose soil to make bed, sow seeds in September, cover fine soil slightly, germinate in about 10 days, and move to cold bed before winter.

3. Cultivation: in the following spring, the seedlings were transplanted in the open field with soil, and the seedlings were plucked once after they were planted and survived, which made them more branched. When the height of the plant is more than 20 cm, the amount of irrigation is reduced appropriately, and a little drought can promote flowering. It blossoms in the middle and late May, and this species can also be directly broadcast in the open field before freezing in November or sown in early spring.

4. Cuttage propagation is dominant. Hardwood cuttings are carried out in spring. The mature branches of the previous year are 10-15 cm long and inserted into the sand bed. Generally, they take root in about 30 days. Softwood cuttings can be used in the rainy season, select the top softwood cuttings in the current year, and take root 2-3 weeks after cuttage. When changing the basin every spring, add fresh and fertile soil, keep the basin soil moist during the growing period, and apply fertilizer once every 2 weeks to promote multiple branches and leaves and blossom.

Potted planting method of Artemisia paniculata

1. Soil preparation: the root is perishable. Generally speaking, the soil is better than slightly alkaline calcareous soil or gravelly loam with good drainage. Acid or neutral soil should be properly applied with lime to adjust the acidity and alkalinity of the soil. Before planting, the soil should be turned 40cm to 50cm deep, enough organic fertilizer should be applied, and some phosphorus and potassium fertilizer should be added appropriately. As a high border, the surface of the border is 30cm to 40cm high.

2. Planting: 2000 plants per mu, using double strips, row spacing 50 cm, plant spacing 35 cm 50 cm. It should be fully watered before planting, then planted in cloudy days, and watered thoroughly after planting. Planting time: as a cut flower cultivation, such as production in the greenhouse, can be planted in summer or autumn or even early spring. In this way, flowers are picked from early autumn to early summer. The plants after picking flowers should be dug up from June to July, then refrigerated to August to September, and then planted.

How fat and watery are the stars in the sky?

1. Moisture: there is more demand for water in the seedling stage, and sufficient water and fertilizer are still needed after coring, so that the plant can gradually change from the vegetative growth period to the reproductive growth period, that is to say, enter the protruding stage (flowering stage). Until the spikelet is drawn out, the moisture content of the petals should be slightly reduced when the petals grow out, so as to prevent the quality and pumping capacity of the cut flowers from decreasing, and to promote the flowers to bloom neatly.

2. Fertilizer: like other grass flowers, Mantianxing requires more fertilizer and water, but is most afraid of random fertilization, concentrated fertilizer and partial application of nitrogen, phosphorus and potash, and requires to follow the two principles of "frequent application of light fertilizer, less and more times, complete nutrition" and "dry and wet, dry, dry and irrigated". And after fertilization, leaves and flowers should be kept dry at night, and fertilizer should be applied by stages after planting. Nitrogen fertilizer is the main fertilizer in the early stage, and phosphorus and potassium fertilizer is the main fertilizer in the later stage.

Pest control methods of Mantianxing

1. Pests all over the sky. There are few insect pests in the sky, and the common ones are aphids, mites and red spiders, whose harmful symptoms are basically the same, mainly harmful to leaves, and when serious, a large number of insect bodies will be gathered on the flowers. When the disease occurs, the branches are removed in time, or sprayed with 1000 times of omethoate EC, or 1000 times of dicofol and 1500 times of fenvalerate.

2. diseases all over the sky. Mantianxing is mainly harmful to leaf spot disease. It can be sprayed with 600 times of 65% zinc wettable powder. Stem rot and atrophy are fatal diseases. Before planting, the soil should be disinfected with formaldehyde solution.

The planting of all over the sky is generally more common in autumn, and it can also be sown in spring, so we can carry out it according to the actual needs. The full sky star is not tolerant of stagnant water, so we must do a good job of drainage when planting. In the later stage of planting, it is necessary to strengthen the prevention and control of diseases and insect pests, only in this way can the stars grow healthily.