Codonopsis pilosula-- Codonopsis 8917mur2
8917Mel 2 is every new strain of Codonopsis pilosula in China selected by the people in the study of dry agriculture in Dingxi region of Gansu Province. It shows the advantages of high and stable yield, drought and cold resistance and strong adaptability. Compared with Shanxi Lu Party and Gansu Baitiao Party, the yield is 20%, 30%, 667%, 150, 200 kg and 250 kg, respectively. The main points of its seedling and cultivation techniques are briefly introduced as follows.
The main results are as follows: 1. The seedling and seedling land should be carefully cultivated and fully fertilized. 2500 kg of rotten agricultural fertilizer should be applied every 667m2, and cake fertilizer should be increased by 100kg, and then 3911 granules should be sprinkled with 1.5-2kg of granule. Deep ploughing and fine ploughing should be done, and the bed should be 90ml 120cm wide, leaving 30cm drainage ditch between the borders. It can be sowed in spring or autumn. Spring sowing is from late March to mid-April and autumn sowing is in mid-late October. Pour water once before sowing, strip sow or sow after the topsoil is slightly dry, open a ditch with a depth of 1.5cm according to the row spacing of 10mur12 cm, mix the seeds with the same amount of fine sand and sow, cover the soil 0.7-1cm, compact, and then cover a layer of grass. Sow 0.5-1 kg every 667 square meters. It can sprout half a month after sowing and transplant after growing for one year.
2. Planting and management in order to prevent the hybrid degradation of varieties, the planting site of this variety should be more than 1 km away from other Codonopsis varieties. Planted in April in spring and in October in autumn, basic fertilizer was applied while digging and moving, planting in trenches according to the distance of the plants was 15 cm and the depth was 15 cm. The ginseng seedlings were placed obliquely in the ditch, covered with 3 cm of soil and compacted. After transplanting, the height of the plant is up to 6ml 10cm, and the weeding in the middle tillage is 2Mel for 3 times, which should be removed shallowly to prevent root injury. When the seedling height is 12Mel 15cm, you can build a frame to make the stem vines wound around the bracket for ventilation and light. It can also cut off part of the ginseng seedlings in the high temperature and rainy season and sunny days, so as to prevent dirty seedlings, rotten seedlings and affect the yield.
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Prevention and control of Codonopsis pilosula grass damage
Fields dominated by annual grass weeds such as paspalum grass, horse tang, dogtail grass, and so on, were treated with herbicides such as Napujing (sparse grass), fine grass, Jingshengde and other herbicides. ① 2% Napujing EC 75 100g per 667m2. ② 5% refined grass EC 75ml 100g. ③ 15% steady kill EC dosage of 75ml 100g. The weeds were sprayed on stems and leaves with 15ml / kg of clear water and 20kg of water. Choose a sunny day without wind at 9: 00 am and enter after 4: 00 p. M.
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Harvesting and preliminary processing of Codonopsis pilosula
1. Harvest and storage of seeds of Codonopsis pilosula although annual plants of Codonopsis pilosula can blossom and bear fruit, there are many shrunken seeds, and the seedlings that are not easy to emerge or grow are weak after sowing, so they are not suitable for planting. The 2-year-old Codonopsis pilosula plants have more flowering and fruiting, full grains, high yield and good quality, and the seedlings grow healthily and are suitable for seed use. The seeds of Codonopsis pilosula are generally harvested when the fruits of 2 ~ 3 years old are yellow and white and the seeds turn brown from September to October. Dry after harvest, should be packed in cloth bag or linen bag, suitable for low temperature storage, suitable temperature below 10 ℃. two。 Codonopsis pilosula
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