There is a good place to grow Pinellia ternata.

Pinellia ternata is not strict with soil, except saline-alkali soil, which is suitable for general soil, especially sandy soil. Intercropping seeds under mulberry fields, orchards and tall crops, planting a row of corn every 130 cm, with a hole distance of 66 cm and 2 plants per hole. The top should be flat, and 37,500-60,000 kilograms of ring fertilizer or soil miscellaneous fertilizer should be applied per hectare, and 225-300 kilograms of calcium superphosphate should be applied to the border.

2. Breeding method

It can be divided into tuber propagation, bulblet propagation and seed propagation, but seed and bulblet propagation cannot be harvested in the same year, and tuber propagation can be harvested in the same year.

(1) tuber propagation

Dig out annual tubers, mix them with wet sand, and store them in the shade for reproduction. Planting time is divided into spring and autumn. In March of spring, water is poured before planting, and tubers are soaked in 5% plant ash solution or 50% carbendazim 1000 times solution or 0.005% potassium permanganate solution or 300 times solution of vinegar for 2-4 hours. After the tuber is dried in the sun, it is planted according to the size, with row spacing 16-20 cm and plant spacing of 6- 10 cm.

(2) Pearl bud propagation

In summer and autumn, cultivate the pearl buds under the petiole, with row spacing 10- 16 cm, plant spacing of 6- 10 cm, open holes, put 3-5 buds in each hole, and cover with soil1.6cm..

(3) seed propagation

In this method, mature seeds are harvested from withered spatula more than ten days after flowering in autumn, stored in wet sand for sowing, and sown in spring and autumn. In spring, ditch the prepared border according to the row spacing of 10 ~ 13 cm, evenly spread the seeds into the ditch, and cover them with soil of 10 ~ 65438. In addition, there is a very extensive mode of communication. Pinellia ternata is very fertile. Pinellia ternata grows continuously in the planting area every year, and can be harvested without sowing and management, but the yield is low.

3. Tian Tuan management

(1) water

Pinellia likes humidity. No matter which method is used, water it before sowing. The growing season is hot, so it needs to be watered frequently. There is no shortage of water in the soil. If there is drought, the seedlings will wither and lodging. With water conditions, the growth of new buds will affect the yield, but there can be no water accumulation, otherwise the roots will be chaotic.

(2) Soil cultivation

In June and July, the lower part of the petiole was cultivated and topdressed twice, and 7500 ~ 15000 kg or rare human manure was applied per hectare. Every time the soil is raised from the row to cover the beads, the soil should be raised above 1.6 cm, and the soil should be frequently loosened and weeded during the growing period.

(3) picking buds

Except as seeds, all the buds growing in the growth period are removed, which can promote the growth and hypertrophy of tubers and increase the yield.

4, pest control

(1) leaf spot

Purple-brown spots grow on the leaves.

Prevention and treatment: before and at the initial stage of the disease, spray 1:120 bordeaux solution or 60% zineb 500 times solution, and spray1time every 7 ~ 10 days for 2 ~ 5 times continuously.

(2) Red moth

In July and August, larvae bite the leaves into notches.

Control method: spray 90% trichlorfon for 800 times at a young age and catch it manually.

(5) harvesting and processing

When the aboveground parts wither in autumn, harvesting begins, and tubers and bulblets are used for reproduction. When harvesting in the same year or the next year, it takes 3-4 years to harvest the seeds. Dig with a three-toothed or two-toothed rake to collect tubers, the large ones are used as medicinal materials and the small ones as propagation materials. The medicinal 10 ~ 12cm "sweating" is piled indoors, the soil is removed by sieving, and the medicinal12cm "sweating" is packed in sacks or chemical fiber woven bags according to the size, and each bag is 2/3. Tie the bag tightly and put it into the cement pool, then pour in cold water. The medicine bag is half submerged, put on water shoes for about 25 minutes, and turn the bag over. So far, all the fresh Pinellia ternata in the bag have been peeled off. Wash and peel Pinellia ternata with clear water, take out Pinellia ternata to whiten the tuber, dry the skin water, smoke it with sulfur until it penetrates the heart, expose it to the sun, and turn it over and dry it continuously. About 3750 kilograms of dry goods are produced per hectare. Pinellia ternata should be non-toxic and can only be used if it is not taken orally.

Drying: dry at 35 ~ 60℃ without fireworks, turn it from time to time, and dry as evenly as possible.