High-yield cultivation techniques of Platycodon grandiflorum in planting season

Many people know that Platycodon grandiflorum is very beautiful and is a flower with high ornamental value. In fact, Platycodon grandiflorum flower also has a high edible value and medicinal value, with the stem as medicine, it can be said that the whole body is a treasure! The following editor will introduce to you the cultivation techniques of Platycodon grandiflorum.

Planting season of Platycodon grandiflorum

Winter sowing or spring sowing: winter sowing from November to January of the following year, spring sowing from March to April. It is better to sow in winter, generally using sowing. When sowing, the seeds were mixed well with tidal fine sand (1 pot of soil mixed with 0.3kg seeds) and sprinkled on the border surface, swept gently with a broom, in order to see the seeds, slightly shock pressure. The following spring, the seedlings emerged early. In spring sowing, in order to make the seedlings emerge neatly, the seeds must be treated or soaked with cover grass after sowing (treatment method: soak the seeds in 30 ℃ warm water for 8 hours, soak them in 30 ℃ warm water for 8 hours, soak them out for 8 hours, wrap them with wet cloth, put them in a place of 25 to 30 ℃, cover them with wet flax slices, accelerate germination, and rinse and filter with warm water once a day. It takes about 5 days for the seeds to germinate and sow. The sowing method is the same as that of winter sowing, keep the soil moist for a long time, and generally emerge in about 15 days. The seed consumption per mu is 2.5kg.

High-yield cultivation techniques of Platycodon grandiflorum

1. Fine soil preparation, apply foot fertilizer to select sunny, deep sloping land or flat land with good drainage, ploughing 25-30 cm, fine crushing and leveling, press 150. It's 170 centimeters open. The width of the trench is 30-35 cm. The center distance of the ditch is 20-25 cm. The ditch is 6 cm deep. Phosphate fertilizer is applied as the base fertilizer, 20-25 kg per mu.

2. Timely sowing Platycodon grandiflorum can be sowed in autumn, winter and spring, but it is best to sow from September to October in autumn and from December to April of the second year. At this time, the seedlings emerge neatly, grow fast, and the yield is high. Strip sowing is adopted, and the sowing area is 10 cm. After sowing, cover with a layer of plant ash and fine soil, then cover with thin grass to maintain soil moisture and temperature, and remove the cover grass. Use 400 grams of seeds per mu.

3. When the height of field management seedlings is 2 cm, the seedlings should be thinned and interspersed properly. When the seedling height is 3-4 cm, the seedling is fixed. There are 1 strong seedlings with a distance of 10-14 cm. Replenishing seedlings and interseedlings were carried out at the same time. Platycodon grandiflorum should be weeded 1-2 times at seedling stage and fertilized with 1000 kg of clear dung water or 7 kg of urea per mu. The seedling height is 6.7 cm and the fertilizer is applied again, and the fertilizer and water is added 20% for the first time.

Growth habit

Like cool climate, cold-resistant, like sunshine. It is suitable to be cultivated in the hilly area below 1100m above sea level and in semi-sunny sandy loam, the neutral sandy soil rich in phosphorus and potassium fertilizer grows better, and the seed life is 1 year, and stored at low temperature can prolong the seed life. The germination rate of 0-4 ℃ dry storage seeds was 3.5-4 times higher than that of normal temperature storage for 18 months. The seed germination rate is 70%, the temperature is 18-25 ℃, there is enough temperature, and the seedlings will emerge 15 days after sowing.

Field management

It takes about 25 days for dry sowing seeds to emerge, and about 10 days for budding seeds. After the seedlings are unearthed, the weeds should be removed in time, and the seedlings should be thinned if the seedlings are too dense, with 10-12 seedlings per 100 square centimeters, and keep one seedling at an interval of 5 centimeters (about 60,000 seedlings per mu), and loosen the soil. Weeding should be carried out at the right time in the later stage. In addition, Platycodon grandiflorum has a long flowering period, which consumes a lot of nutrients and affects root growth. Besides planting, it is necessary to improve root yield and quality by thinning flowers and fruits in time.

As mentioned above, if you want to plant Platycodon grandiflorum well, you must understand the planting time and growth environment of Platycodon grandiflorum, soil texture and so on. Platycodon grandiflorum can be planted in spring and winter, so if you want to plant Platycodon grandiflorum, you'd better choose these two seasons.