How to improve the survival rate of purple ginseng?

How to improve the survival rate of purple ginseng?

Purple yam is also called "purple ginseng", with its hypertrophy root tuber or cylindrical root for consumption, purple yam is rich in anthocyanins, widely used, not only can be used as food on the table, but also can be used as health medicine, often eat purple yam, can reduce blood pressure, blood sugar, anti-aging longevity, brain tonic wisdom, enhance human immunity. As a new variety of purple yam, Xunong Ziyao could not purify and rejuvenate its fine characters by producing yam beans like common white yam. At present, the purple yam is planted by tuber cutting propagation, and the propagation coefficient is only 10-15 times, which greatly limits the propagation and popularization of the purple yam, and the survival rate and survival quality of the cultivated purple yam seedlings are poor.

1. Purple Ginseng Tuber Planting: From April 6 to April 10, XuNong purple tubers with the weight of 60g/block are selected, soaked in rooting powder No. 5 liquid medicine with the concentration of 600ppm for 80s, the tubers are completely immersed into 3 cm below the liquid medicine surface, the tubers are taken out and dried on the surface, the purple tubers are planted on a seedbed, the seedbed consists of fine soil or nutrient soil added with farm manure, the overall humidity of the soil is suitable, the purple tubers are planted according to the mode of head top and tail bottom bottom, the planting space of each tuber section is 20 * 20 cm2, After planting, the soil covering thickness is 3-5cm, the water amount is evenly sprayed 200- 300ml during planting, and then the water amount is evenly sprayed 150- 200ml to the seedbed every 7 days until the end of April;

2. Purple ginseng seedling preparation: spraying paclobutrazol powder 6g/mu on the planted seedbed from May 10 to 25, spraying once every 5 days, continuously spraying for 3 times, sticking to the ground and cutting after the purple ginseng seedling grows to 20-25cm, spraying paclobutrazol powder regularly according to the same method, cutting seedlings after the seedling length is appropriate, repeatedly spraying and cutting seedlings for 4-5 cycles;

3. Purple Ginseng Seedling Cuttings: screening and discarding the purple ginseng seedlings without spreading leaves, thin and damaged by insects, planting the intact seedlings in a cutting shed scattered with farm manure after the temperature is lower than 28 DEG C in the afternoon, wherein the cutting planting space of each seedling is 25 * 25 cm2, spraying rooting powder No. 5 liquid medicine on the branches and leaves of the seedlings after cutting, spraying rooting powder No. 5 liquid medicine 0.5 kg/mu again after 10 days, By covering film and hay on the cuttage shed and adopting spray cooling mode to coordinate temperature control in the shed, the daytime temperature is adjusted to 25-30 DEG C, the night temperature is adjusted to 22-25 DEG C, and the humidity is constantly controlled to 85- 90 percent;

4. Purple Ginseng Seedling Growth: From June 10 to June 15, spraying paclobutrazol powder 24g/mu on the leaves of planted seedlings, spraying paclobutrazol powder 50g/mu on the leaves of seedlings after an interval of 10 days to promote the growth and development of purple ginseng roots. After June 20, after 10:00 a.m. and before 3:00 p.m. every day, opening the film and hay covered on the cutting shed to ensure that the purple ginseng seedlings can carry out sufficient photosynthesis. After September 20, removing the film on the shed, hay to enable seedlings to grow freely and normally; from June 10 to September 20, the temperature in the cutting shed is maintained at 25-28 DEG C and the humidity is maintained at 85- 90 percent through a film on the cutting shed, hay and spray cooling mode in the shed, so as to promote the growth and development of the stems and leaves of the Chinese yam; from September 20 to September 22, 25kg/mu of a solution composed of a mixture of DA-6 and alcohol milk powder according to a ratio of 1:1 is sprayed on the purple ginseng, and 5 days later, 15kg/mu of a solution composed of a mixture of DA-6 and alcohol milk powder according to a ratio of 2:1 is sprayed again to promote the growth of the Chinese yam;

5. Purple ginseng harvest: October 15-30, purple ginseng mature purple ginseng potato will be dug out, dry the surface after the temperature of 10-15℃, humidity suitable indoor storage.

Conclusion;

(1)The purple ginseng seedlings are cut, kept warm, kept moist and sprayed with pesticides to promote the seedlings to take root and germinate, thereby effectively ensuring the seedling yield and the seedling cultivation quality of the purple ginseng, eliminating the need for frame materials and significantly reducing the investment cost of seedling field facilities;(2) The method reasonably screens the cut purple ginseng seedlings, changes the low efficiency caused by selecting strong seedlings in the traditional seedling raising process, cuts first and then screens, facilitates the growth replacement of the seedlings, facilitates the selection of healthy and robust seedlings for cultivation, and ensures the growth quality of the purple ginseng at the later stage;(3) The invention reasonably designs the growth space of the yam tuber through tuber planting, adjusts the temperature and humidity of the soil by covering a film on the cutting shed, hay and spraying and cooling in the shed to ensure that the tuber germinates and seedlings as soon as possible, reasonably uses fertilizer in the seedling growth stage, effectively improves the propagation coefficient of the purple ginseng, provides continuous and appropriate fertilizer support for the seedling growth through multiple and appropriate fertilization in the growth process of the yam seedling, ensure the survival rate and survival quality of the purple ginseng seedlings, and effectively promote the propagation and popularization of the purple ginseng. The propagation coefficient of seedling raised by the method is 35 times, and the rooting rate, survival rate and tuber setting rate are all above 83.6%.