Planting techniques of Radix Paeoniae Alba how to grow Paeonia lactiflora

Planting peony can be used as both an ornamental plant and a medicinal material. However, as an ornamental plant, most of the peony is double peony, and the medicinal peony is not only different in shape, but also different in the focus of cultivation, so we must determine our own planting goal before planting peony.

Planting technique of Radix Paeoniae Alba

Before planting, the roots of peony buds should be divided into two categories according to their size, and they should be planted separately for future management. Large planting, good management, can be harvested one year earlier, planting time is generally around Cold Dew, the earlier the better, the latest can not exceed Frosts Descent, if too late, on the one hand, because the stored peony buds have new roots, easy to break when planting; on the other hand, the temperature is getting lower and lower after planting, which affects the sprouting and growth of the next year. When planting holes, the row spacing is 40-45 cm, the plant spacing is about 30 cm, and the hole depth is 16-20 cm. 3500-4000 plants can be planted per mu. After opening the hole, 1-2 buds are planted in each hole, leaving 2-3 main roots, and the roots should be bifurcated and oblique, buds upward, covering soil and border flat, it is appropriate to use buds about 5 cm underground, soil covering operation should be meticulous, soil should be fine, and soil should not be covered with soil clods. The bud head covered by soil can not be closely combined with the soil, the ventilation is strong, and the bud head is vulnerable to drought and freezing damage, which will delay germination or even not germination.

Sowing time of Paeonia lactiflora

The mature and full seeds of Paeonia lactiflora were collected in the middle and last ten days of August, and had better be sowed as soon as they were picked. If the seeds are not sown temporarily, they should be mixed and stored in a cool and ventilated place immediately, and sown in the middle and late September. The sowing method can be used to sow the seeds according to the row spacing of 20-25m, the ditch depth is 3-5cm, and the seeds are evenly scattered in the ditch, covered with soil 1-2cm, and slightly suppressed. The amount of seed used per mu is 30-40 kg. In early April of the following year, when the seedlings were unearthed, the cover grass should be removed in time to facilitate the growth of the seedlings. Due to the use of seed propagation, it takes 2-3 years for seedlings to be planted, and the growth cycle is long, so there is less application in production.

The new production period of Radix Paeoniae Alba is in July and August. After harvesting, the medicinal rhizome is removed, and the bud head without disease and full bud head is selected as the propagation material. The bud head of Paeonia lactiflora is cut into several pieces according to its natural growth shape. There are 3 buds per bud, the thickness of the bud is more than 2 cm, and the bud head should be cut and planted as soon as possible. If it can not be planted in time, it should be stored temporarily. Choose a cool, dry and ventilated place, spread the wet fine sand on the ground, stack the bud head up, and then cover the wet sand for storage. Or dig a hole for storage and pay attention to drainage when it rains to avoid mildew and rot.

Field management of Paeonia lactiflora

1. Ploughing and loosening soil in Radix Paeoniae Alba

After emergence, the weeds should be removed 2-3 times a year, and the middle tillage should be shallow, so as not to hurt the roots and die the seedlings. In late October, before the ground freezes, the branches and leaves are cut off at 7mur10 cm from the ground, and the soil is cultivated in the rhizosphere to survive the winter. The method of "splitting ridges and brightening roots" is often used in the cultivation of Radix Paeoniae Alba in Heze, that is, in the first ten days of May of the second year after planting, the soil around the peony plant is gently plucked away so that the roots are slightly exposed, dry for 5 years for 7 days, and then cultivate the soil to support the roots, which can increase the soil temperature, kill insects and sterilize, and achieve the effect of increasing production, but the drying time should not be too long.

2. Topdressing irrigation and drainage of Radix Paeoniae Alba

From the second year, topdressing was applied three times a year, from late March to early April, light human feces and urine were applied in the first ten days of March, 500 kilograms of human feces and urine per mu were applied in the second ten days of April, and from October to November of the third time, the manure was mainly circle fertilizer, 1500Mu / mu. In the last ten days of March, 750kg of human feces and urine, 50kg of rotten cake fertilizer and 25kg of superphosphate were applied per mu in late March, 1000 kg of human feces and urine per mu in late April, and 1500000kg of stable fertilizer in November.

Topdressing twice before harvest in the fourth year, applying 1000 kg of human feces and urine per mu in late March, adding 10 kg of ammonium sulfate and 25 kg of calcium superphosphate per mu, and applying again according to the above amount of fertilizer except phosphate fertilizer in late April.

Each fertilization is suitable for opening holes on both sides of the plant. Paeonia lactiflora likes drought and is afraid of waterlogging, and generally does not need irrigation. In case of severe drought, it is appropriate to irrigate once in the evening. In rainy season, clear ditches and drain in time to reduce root diseases.

Prevention and Control of Diseases and insect pests of Radix Paeoniae Alba

1. Diseases: mainly leaf spot, including red spot and brown spot, the peak of the disease is in the summer and autumn with high temperature and high humidity. At the initial stage of the disease, 40% carbendazim 800 times solution can be used to spray foliar control. In severe cases, 40% carbendazim 500 times solution can be sprayed once every 15 days, 2-3 times.

2. Insect pests: mainly grubs and nematodes. For grubs during the peak period from July to August, 30% carbofuran (5kg/ mu) or 50% phoxim granules (3kg/ mu) or methyl isofenphos can be mixed with organic fertilizer or sandy soil to form poison bait, spread evenly, and then hoe deeply. Nematodes are root-knot nematodes with strong transmission and serious damage to peony. The symptoms are nodules of different sizes in fibrous roots, weakening of plant growth, yellowing, scorching and early falling of leaf margin, and in severe cases, the plant becomes shorter and dies. 25 g / m2 of 30% carbofuran granules available for prevention and control were evenly applied to the occurrence plot in the rainy season in summer, and then deep hoe 5-10cm. Because the root-knot nematode is a kind of low-grade animal, it mainly lives in the soil layer within 5-20cm. When applying pesticide, it should not be too deep.

Radix Paeoniae Alba is a kind of Paeonia lactiflora used in pharmacy. Good raw Radix Paeoniae Alba can achieve good results in the treatment of many diseases. Therefore, planting Radix Paeoniae Alba is a good planting project for drug farmers. For this reason, planting technology and management means are particularly important.