The most complete planting technology of Polygonum

The most complete planting technique of Polygonum multiflorum, Polygonum multiflorum is a perennial entangled vine that climbs plants and grows slowly. It is generally believed that wild Polygonum multiflorum should grow for more than three years to form larger roots for medicinal purposes. In recent years, the economic value of the market has increased gradually. Many friends have chosen to plant Polygonum multiflorum, but the planting techniques of Polygonum multiflorum are not well understood. The Zhengdao Fertilizer Network first summarizes the planting techniques of Polygonum multiflorum as follows:

Sexual reproduction of Polygonum

Seed collection and storage Firstly, the excellent single plants with pure varieties, no pests and diseases, and strong growth and development are collected as the mother plants for seed collection. When the seeds of Polygonum multiflorum are mature, the appearance changes from white to brown, and when the interior becomes black, it needs to be harvested in time, otherwise the seeds will naturally fall off. The harvested seeds have large water content, are prone to mildew and infection, and thus lose their ability to germinate. Therefore, they must be dried before being placed in sacks or sandbags, stored in a ventilated and dry place, and should not be stored in plastic bags.

1. Ground selection. Polygonum multiflorum seedlings have stricter soil selection, and it is suitable for deep soil layers, loose and fertile soil, convenient water source and capable of discharging energy. After the seedbed is confirmed, the weeds are removed before the weeds in the first year, so as to avoid the second year of weeds and the seedlings of Polygonum multiflorum to compete for nutrients and light, which is the key to the success of the seedlings.
2. Land preparation. After deepening the seedbed, the exposure will reduce the pests and diseases in the soil by exposure for 15 to 20 days. Where there are conditions, the branches and loose hair are piled on the scorpion and set on fire once, which can reduce the weeds, reduce the pests and diseases, and improve the soil fertility. Then carry out soil preparation and combine with the base fertilizer. It is required to apply 10kg of high-quality farmyard manure per square meter, and dig it once after application to remove the weed roots and grasp the flat surface.
3. Reason. Generally, after sowing, due to severe spring drought, mainly relying on artificial irrigation, it should be suitable for Pingyi, the width of the raft is 1.5m, and the soil is made around the circumference. The width of the raft is 30cm, which is conducive to water retention and fertilizer conservation.

sowing. The results of many years of experiments confirmed that the best planting season of Polygonum multiflorum was suitable for March “shock”. Too early, the temperature is low, can not meet the temperature required for seed germination, not only will not emerge, but will also rotten; too late, although seedlings are quick after emergence, but the best growth period is short, which is not good for seedling growth. Due to the small size of the seeds, Polygonum should be spread by sand.

The sowing amount is 4-6g per square meter. Before planting, use the tool to gently level the topsoil of the noodles. The soil gap should not be too large. If the soil is too deep, the seedlings will not be produced. At the same time, you must choose to mix fine soil or grass ash in the morning or evening without wind. After sowing, use sieved soil and a small amount of farmyard manure to cover the surface. The thickness should be 0.1-0.2cm, and then spread. Cover with a layer of green pine hair, the thickness of which is one-fifth of the soil visible to the naked eye.

Management of seedling bed in Heshouwu

1. Watering through the water. The seeds of Polygonum multiflorum are small, and must be sprayed several times with watering can when watering. Thereafter, on a sunny day, every day after 10 am or after 5 pm, lightly watering once; after 20 to 25 days of emergence, watering for 2 to 3 days - times.
2. weeding. After weeding in Polygonum multiflorum, weeds should be removed first, and weeding should be carried out in time and watered as appropriate. Weeding every 10 days or so later.
3. top dressing. After the seedlings are unearthed for 60 days, they can be sprayed with 100kg of water plus 0.2-0.3kg of compound fertilizer or urea. The concentration should be lighter and the number of times should be more, and sprayed every 10~15 days. In the middle and late seedlings, 0.5% to 1% of compound fertilizer or urea can be sprayed, or 50kg of clean water and 5~8kg of manure water can be applied.
4. Miao Miao. In order to cultivate strong seedlings, it is necessary to drop the dense and weak seedlings. The first seedlings were carried out about 30 days after the seedlings were unearthed; the second time was carried out about 50 days after the seedlings were unearthed; the third seedlings were called seedlings, and basically one plant was kept at intervals of 3 to 4 cm. The seedlings should be sooner rather than later, otherwise the seedlings will be long. Water should be properly watered after each seedling.
5. Control pests and diseases. At present, the insect pests found in the seedbed are mainly tigers, which can be killed manually or with a 1:2000-fold enemy kill spray. The disease is mainly powdery mildew. It can be prevented by spraying 1:1:200 times before the onset of the disease. It can be sprayed with 25% carbendazim 500-800 times solution.

Asexual reproduction of Polygonum multiflorum

1. Stem segment cutting propagation method

1 chemical treatment, in the wild or domestic species of Polygonum multiflorum germination, the base of the stalk of the saplings, cut into 10 to 20cm long, retain 2 to 3 buds, dozens of bundles for the small, respectively Rooting powder No. 1, No. 2, No. 3, Nae acetic acid, 2.4-D for root immersion treatment, the specific use of the concentration reference manual, note that iron, copper vessels can not be used to hold the solution. It is also possible to use the above method for the second batch of cutting seedlings after germination of Polygonum multiflorum in May-June. The survival rate of both batches can reach more than 80%.

2 In the period from February to March and from May to June, the treatment method of the young stems is the same as above, and then the base of the stems is smashed with alcohol or ash, and the survival rate is above 70%.

3 After germination of young vines from May to June, the stem segments do not need any treatment, and the direct cutting survival rate can reach more than 50%. In short, no matter which cutting stem segment must be inserted into the soil on the same day, the plant spacing is 10cm×20cm. The seedbed is preferably loose or not fertilized, and poured into water for 2 to 5 days.

2, root propagation method

The roots of Polygonum multiflorum were harvested from August to September or from February to March. The bases of small and medium-sized roots or roots of the roots were used for planting in loose and fertile plots. The row spacing was 10cm×20cm. After sowing, the root water must be poured once. Normal management after emergence.

The seedling bed of cuttings and roots must be strengthened by cultivating and weeding. When the new seedling grows to 20~30cm, it must be uniformly applied with 2~3kg of compound fertilizer to 100kg of water.

Cultivation time of Polygonum multiflorum planting

Regardless of the method of cultivating the seedlings, the best transplanting season is suitable for the "Summer Solstice" in mid-June. The root vines of Polygonum multiflorum are several meters long, and the plants grow vigorously. Only reasonable close planting can fully exert the effects of soil, light, heat, water and gas to achieve high quality, high yield and high efficiency. It is advisable to plant 9000 to 11,000 plants per acre. It should be transplanted with soil as much as possible. The plant spacing is 25cm×30cm or 25cm×25cm.

Field management of Polygonum harvest

1. Fertilize. The transplanted plot applies 1000-1500 kg of farmyard manure plus 30-50 kg of phosphate fertilizer or 20-30 kg of compound fertilizer per mu. Generally transplanted in the transplanting pond and then transplanted.
2. top dressing. When transplanting seedlings grow to about 60cm, combined with cultivating and weeding, 30-40 kg of compound fertilizer or 30 kg of urea can be applied per acre, which is suitable for water application, and weeding at any time later.
3. Control pests and diseases. It has been found that powdery mildew, hairy worms, etc. must be controlled by carbendazim, enemy killing and the like.
4. Rack. This is a special management measure for the cultivation of Polygonum multiflorum. Because the genus Shouwu vines climb plants, the aerial parts grow vigorously. In order to further improve the yield and quality, after transplanting, when the plant grows to about one meter, it must be raised more than 1 m with bamboo rafts or branches, and the ventilation and light transmission conditions should be improved to facilitate the growth and development of plants and underground roots.
5. Topping the vine. When the vine grows to 2 meters high, the top bud is removed to facilitate branching. After 30 days, the dense branches and the long branches sprouting from the base were cut to reduce nutrient consumption. Remove the leaves at the base of the stem and the flower buds that are not kept in order to facilitate ventilation and light transmission.
6. earth. In the southern producing area, the rhizosphere soil was cultivated at the end of December to increase the propagation material and promote the growth of the roots; the northern part was cultivated before winter to facilitate wintering.

Pest control in planting of Polygonum multiflorum

1. Leaf spot disease begins to develop in the hot and rainy season, and the field is poorly ventilated and is harmful to the leaves. Control methods: 1 keep ventilation, light transmission, cut off diseased leaves; 2 spray 1:1:120 Bordeaux mixture at the beginning of the disease, spray once every 7-10 days, 2-3 times in a row.
2. Root rot occurs mostly in the summer and damages the roots. Control methods: 1 pay attention to the water; 2 remove the diseased plant, the diseased hole is sprinkled with lime on the lid; 3 with 50% carbendazim WP 1000 times solution to root, can play a protective role.
3. Rust disease begins in late February, and it is harmful in March-May and July and August, which is harmful to the leaves. Control methods: 1 remove diseased leaves, diseased plants and above-ground residual leaves; 2 spray with 75% chlorothalonil 1000 times solution or 75% methyl thiophanate 800-1000 times solution, spray once every 7-10 days , 2 times in a row.
4. The mites are sprayed with 40% dimethoate 1500-2000 times with a small amount of washing powder, and sprayed once every half month.

Harvesting and processing of Polygonum multiflorum

It can be harvested after 2-3 years of planting, and the yield of the fourth year of cutting is higher. After the autumn leaves or before the early spring germination, remove the stems and vines, dig out the roots, wash the soil, cut into thick slices of about 2 cm, small, not cut, dried or dried. It is good for weight, quality and powder.

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