First, the biological characteristics of strong cold, hi cool mountains, 800-2000 meters above sea level can be planted in the mountains, with deep soil, well-drained, sandy soil containing more humus as well, avoid continuous cropping. Second, the breeding method Codonopsis using sexual reproduction, divided into two kinds of live broadcast and seedling transplanting. III. Seedlings were transplanted and planted on semi-sloping land. The land was deep-turned in the first year of winter. 15,000 kilograms of farmland manure was applied per hectare, 750 kilograms of phosphate fertilizer was used as base fertilizer, and the land was finely ground in the 2nd year of spring. It was made by 170 centimeters wide before and after the equinox. High box. 45 kg of seeds per hectare, mixed with fine soil sowing, 10 cm row spacing ditch, ditch depth 1-2 cm, even in the broadcast cabin, covered with fine soil. After weeding, weeding and top dressing were carried out. In the second year of transplanting, 6 hectares of Daejeon could be planted per hectare of seedbeds. Fertilizer planted 15,000 kilograms of manure per hectare, and 750 kilograms of phosphate fertilizer. Then the soil was leveled and dug, and the strong seedlings of the second year were dug to plant seedlings before and after “Qingming†or in autumn. When planting seedlings, 10-20 centimeters are the main slopes of the seedlings arranged obliquely in the ditch. The top of the reed is about 7 centimeters below the soil surface. 7500 kilograms of barn fertilizer and 300 kilograms of phosphate fertilizer are used per hectare. Open the second row of earth cover and the first row of seedlings. . Fourth, after the field management planting, weeding twice a year, in addition to the spring planting autumn, spring planted in addition to autumn. Codonopsis is tolerant to fertilization, which is based on the use of base fertilizer. In the year of cultivation, 15,000 kilograms of faecal water or 375 kilograms of ammonium bicarbonate should be applied. After the cultivation of Codonopsis pilosula, a small rod or branch with a length of 170 cm was selected and interleaved between the rows every 30-60 cm for Codonopsis pilosula. For seed collection, the seeds that are harvested after 2 years should be planted first. Before and after the “summer heat,†the mature seeds are harvested and stored. Fifth, pest control erythromycin root rot, yellow rust, generally severe in May-July, after the onset of disease, remove the diseased plants burned, using the lime hole disinfection. Before sowing, 30 kg of pentachloronitrobenzene was used for soil disinfection per hectare. Use 65% wettable Zinc 500 times solution or 1:1:200 Bordeaux mixture to spray or root, once every 7 days for 2-3 times. To control locusts and red spiders, dimethoate can be sprayed with 1 kg plus 200 kg of water. Earthworms, ground tigers, cockroaches, and golden needles can be used to irrigate the ground with 75% sulphur-containing EC, or use bait traps. Six, harvest processing can be 2-3 years to harvest. Before and after "White Dew". Straighten up the roots, avoid damage, drying or drying. Rubbing and baking, repeated 4-5 times the quality requirements of the root length 10-15 cm, cross-section yellow and white, aromatic, slightly Wei Gan. Orange Pvc Coated Gloves,Single Dipped Pvc Gloves,Freezing Weather Pvc Gloves,Industrial Orange Pvc Gloves JINAN SHANDE SECURITY TECHNOLOGY CO., LTD , https://www.sdsxlb.com