It is divided into spring and autumn. When planting in autumn, underground tubers should be dug out in late September and planted in time according to their size and grade. Planting thawed tuber in spring (buried in the ground or potholes in winter), row spacing 15cm, stump 6- 10cm, each refraction group (i.e. digging) 1-2, and covering with soil 3-6cm. Water the ground when it is dry.
Row spacing 12 cm, plant spacing 6- 10 cm, and 3 cm seeds should be planted after ditching. In April, we should choose soft places, stop sowing, build shallow ditches, sow evenly, row spacing 10- 13 cm, and cover with soil. Van Hecky grew up in a humid environment, so no matter what sowing method is used, water should be injected before sowing. In this way, the soil surface is not easy to harden and germinate. In addition, if planted in a cool place, it should be intercropped with soybeans, codonopsis pilosula and other crops and other medicinal materials to avoid sun exposure.
Water when drying, and water once every 10 day when drying. Fertilizer should be mixed with decomposed fertilizer and phosphate fertilizer, and base fertilizer should be applied appropriately. In June and July, topdressing should be combined with golden horse machine and scarification. Moth larvae are the main pests of phosphate fertilizer 15-20kgo in Tang Miao, which generally begin to damage after May. Control method: spray 5% DDT powder 1.5 kg per mu, or spray 400-500 kg water to 0.5 kg trichlorfon.
Tuber propagation, pearl propagation is harvested in the autumn of the same year or the following year, and seed propagation is harvested in the autumn of 3 ~ 4 years after sowing. Dig it out, wash it, peel it, dry it and sell it. Pinellia ternata is poisonous and cannot be taken orally without being processed. Educate someone to take care of the children when they are drying. If you take it carelessly, use licorice or mung bean soup to detoxify.
Pinellia tuber fertilizer is suitable for fertile soil environment. Pinellia ternata is prone to tuber rot during planting, which is mainly related to soil environment. Poor soil permeability, low organic matter content, soil hardening or high salt content will all lead to serious problems in the growth of Pinellia ternata, so it is necessary to provide a fertile and breathable soil environment. In addition, giving priority to phosphorus, potassium and calcium fertilizers in the production of Pinellia ternata can obviously improve the quality and yield of Pinellia ternata. However, when fertilizing, we must stay away from stems and leaves, pay attention to avoiding seedbeds, and give priority to loyalty to the west in autumn rain to speed up the absorption of fertilizer and water by Pinellia ternata. Pinellia likes the growth environment of semi-CD. When the light intensity is too high or too low, it is not conducive to the growth of Pinellia ternata, which will seriously reduce the quality and yield of Pinellia ternata. Insufficient light intensity will weaken the growth momentum and affect dry matter accumulation. The intensity of light is too strong to survive for half a summer. Therefore, only in a suitable shade environment can the root system of Pinellia ternata be strong, and the quality and yield can be improved during the later harvest.
Pinellia planting market has planted a lot of sandy soil, and more than 90% of the soil has different degrees of judgment, which is worse every year. Generally speaking, the soil is not fertile, the organic matter content is relatively low, generally 0.6-0.8, the fertile soil is above 4.0, and the general soil organic matter is between 2-4. The content of organic matter is an important reference to determine soil fertility, and it is also related to the survival of microorganisms in soil. If the organic matter content is too low, the gaps between soils will become smaller, and beneficial microorganisms will be difficult to survive, thus reducing the permeability of soil. Especially when irrigation or rainfall, it will affect the respiration of roots and tubers, leading to problems such as root inclination and stem rot.