NL2032039B1 - Direct sowing planting method for trollius chinensis - Google Patents

Abstract

The present invention provides a direct sowing planting method for Trollius chinensis, and belongs to the technical field of plant cultivation. The direct sowing planting method for Trollius chinensis of the invention includes the following steps: performing pre—germination treatment on îîollius chinensis seeds; performing ridging, mulching the ridges with a black agricultural film, and making planting holes on the black agricultural film; mixing fine sand with the pregerminated seeds, sowing the seeds, and mulching the ridges with a white agricultural film; after more than 80% of seedlings have l~2 true leaves emerged, removing the white plastic agricultural film; and performing seedling protection. and strengthening, earth—up for seedling protection, and adult plant management. According to the direct sowing planting method for îTollius chinensis, the links of sowing and raising seedlings, and, then transplanting the seedlings into a large land after the seedlings grow up in a traditional planting method, for Trollius chinensis are omitted, the integration of sowing with planting is realized, and the planting cost is saved. Moreover, by using the method of the present invention to plant the Trollius chinensis, the damage to seedling roots in the transplanting link is reduced, the growth speed of plants is fast, the plants enter a high yield period one year ahead, the produced economic benefit is fast, and the average yield is increased by more than 20%. 25

Description

P1398 /NLpd

DIRECT SOWING PLANTING METHOD FOR TROLLIUS CHINENSIS

TECHNICAL FIELD

The present invention belongs to the technical field of plant cultivation, and particularly relates to a direct sowing planting method for Trollius chinensis Bunge.

BACKGROUND

Trollius chinensis Bunge (Trollius chinensis) is a perennial root herb of tropaeclum in the Ranunculaceae family, and its wild resources are mainly distributed in northern Hebei and eastern In- ner Mongolia China. Trollius chinensis, with its flower used as medicine, contains the active ingredients of orientin and vitexin, and has the antibacterial and antiviral effects. It is an essen- tial medicine for treating colds, high fever and other diseases, it is a main component of Chinese patent medicines such as Jin- lianhua Tablets, Jinlianhua Granules, Jinlianhua Capsules, etc. and it has been listed in the “National List of Protected Varie- ties of Traditional Chinese Medicine”. The raw materials of Trol- lius chinensis traditionally rely on mainly wild resources. With the gradual increase in market demands, the wild resources have encountered predatory picking, thereby resulting in a sharp drop in the reserves. In recent years, artificial planting of Trollius chinensis has sprung up in Hebei, Inner Mongolia, Ningxia, etc., and a planting scale is enlarged constantly. However, as Trollius chinensis has a low germination rate of seeds, weak growth in a seedling stage, and high requirements for seedling protection measures, it is necessary to sow and raise seedlings, and then transplant the seedlings into a large land after the seedlings grow up in the prior art, as shown in Chinese Patent Applications 201610729644.3 and 201910250559.2. These planting methods, charac- terized by complicated operation, consumption of long time and large labor, high cost and slow income gaining, cannot meet the industrial needs for high-quality development, and thus it is ur- gent to explore a “seedling-planting” integrated planting method.

SUMMARY

In view of this, the present invention is intended to provide a direct sowing planting method for Trollius chinensis, in which the links of raising and transplanting seedlings are omitted, the integration of sowing with planting is realized and the planting cost 1s reduced.

In order to achieve the above-mentioned objective, the pre- sent invention provides the following technical solution: the present invention provides a direct sowing planting meth- od for Trollius chinensis, including the following steps: performing pre-germination treatment on Trollius chinensis seeds; performing ridging, mulching the ridges with a black agri- cultural film, and making planting holes on the black agricultural film; mixing fine sand with the pregerminated seeds, sowing the seeds, and mulching the ridges with a white agricultural film; af- ter more than 80% of seedlings have 1-2 true leaves emerged, re- moving the white plastic agricultural film; and performing seed- ling protection and strengthening, earth-up for seedling protec- tion, and adult plant management.

Preferably, the pre-germination treatment is specifically performed as follows: Trollius chinensis seeds are soaked with 59/L gibberellin aqueous solution for 48h, drained, and subjected to constant-temperature incubation at 20~25°C.

Preferably, the ridges are 3~5cm high and 60~120cm wide.

Preferably, a spacing in the rows and a spacing between rows of the planting holes are 15~30 x 30~40cm, a diameter of the planting holes is 4~6cm and a depth of the planting holes is 1~2cm.

Preferably, a mixing weight ratio of the fine sand and to pregerminated seeds is 50~80:1.

Preferably, a sowing amount of the seeds is 0.5~0.8kg/ 667m.

Preferably, the seedling protection and strengthening are performed by spraying a foliar fertilizer, and the step of spray- ing a foliar fertilizer is specifically performed by spraying the foliar fertilizer every 10~15 days, 3~5 times throughout a seed- ling stage.

Preferably, the earth-up is performed when 5-6 true leaves emerge from each of the seedlings or the seedlings are 10~15cm high.

Preferably, a height of the earth-up is 3~4cm.

Preferably, the adult plant management includes root applica- tion of a compound fertilizer before flower buds appear, a number of root application times is two times, an interval of the root application is 7-10 days, and an application amount of the com- pound fertilizer is 30~40kg/667m".

Compared with the prior art, the present invention has the following advantages:

According to the direct seeding planting method for Trollius chinensis of the present invention, a “double film” mode is adopt- ed to promote the germination of seeds, and also to realize the seedling protection and strengthening, so that a seedling rate is greatly improved. Moreover, direct sowing of seeds is used in the present invention, the links of raising and transplanting seed- lings are omitted in traditional planting methods for Trollius chinensis, the integration of sowing with planting is realized, and the planting cost is reduced. Compared with the traditional methods, by using the method of the present invention to plant the

Trollius chinensis, the damage to seedling roots in the trans- planting process is reduced, the growth speed of plants is fast, the plants enter a high yield period one year ahead, the produced economic benefit is fast, and the average yield is increased by more than 20%.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The present invention provides a direct sowing planting meth- od for Trollius chinensis, including the following steps: performing pre-germination treatment on Trollius chinensis seeds; performing ridging, mulching the ridges with a black agri- cultural film, and making planting holes on the black agricultural film; mixing fine sand with the pregerminated seeds, sowing the seeds, and mulching the ridges with a white agricultural film; af- ter more than 80% of seedlings have 1~2 true leaves emerged, re- moving the white plastic agricultural film; and performing seed-

ling protection and strengthening, earth-up for seedling protec- tion, and adult plant management.

The Trollius chinensis seeds of the present invention are preferably those free from pests and diseases, mature and full of grains. In the present invention, there is no special limitation to the source of the Trollius chinensis seeds, and conventional commercially available Trollius chinensis seeds in the art may be used. In the present invention, there is no special limitation to the pre-germination treatment manner, and conventional pre- germination treatment manners of Trollius chinensis seeds in the art may be used. As a preferred embodiment, the specific pre- germination treatment steps of Trollius chinensis seeds in the present invention are as follows: Trollius chinensis seeds are soaked with 5g/L gibberellin aqueous solution for 48h, drained, and subjected to constant-temperature incubation at 20~25°C. In the present invention, there is no special limitation to the source and type of gibberellin, and conventional commercially available gibberellin in the art may be used. The gibberellin aqueous solu- tion of a suitable concentration of the present invention can break seed dormancy, promote germination and fully ensure a seed germination rate, and also have the functions of reducing the cost and reducing the impact on seedlings. An over-high concentration of gibberellin may easily lead to the occurrence of deformed seed- lings, and a suitable soaking time is more beneficial to improve the seed germination rate; in a specific embodiment of the present invention, the gibberellin aqueous solution is preferably a gib- berellin 3 aqueous solution. In the present invention, there is no special limitation to the draining manner. In a specific embodi- ment of the present invention, a preferred draining manner is per- formed by pouring the seeds into a plastic mesh bag for draining, as long as no water droplets leak. In the present invention, be- fore the constant-temperature incubation, it is preferable to uni- formly disperse the drained seeds in a mesh bag and then perform the constant-temperature incubation. In the present invention, there is no special limitation to the constant-temperature incuba- tion manner, and the constant-temperature incubation is preferably performed in a constant-temperature incubator. A temperature of the constant-temperature incubation is preferably 23°C; a humidity of the constant-temperature incubation is preferably 70%~90%, and more preferably 80%; and a time of the constant-temperature incu- bation is preferably 2~3 days. 5 In the present invention, ridging is performed in a planting field, the ridges are mulched with a black agricultural film, and planting holes are made on the black agricultural film. In the present invention, there is no special limitation to the ridging manner, and conventional ridging manners in the art may be used.

In the present invention, the ridging is preferably performed in early-to-mid April or mid-to-late August; a ridging height is preferably 3~5cm, and more preferably 4cm, and a ridging width is 60~120cm, and more preferably 20cm. In the present invention, mulching with a black agricultural film can not only maintain a ground temperature, but also inhibit the growth of weed. In the present invention, there is no special limitation to the source and quality of the black agricultural film, and conventional com- mercially available products in the art may be used. In a specific embodiment of the present invention, a width of the black agricul- tural film is preferably 100~150cm, and more preferably 130cm. In the present invention, there is no special limitation to the man- ner of making planting holes, and conventional manners of making planting holes in the art may be used. In the present invention, it is preferable to make planting holes by a planting hole punch- er, a spacing in the rows and a spacing between rows of the plant- ing holes are preferably 15~30 x 30~40cm, and more preferably 20~25 x 33~37cm; a diameter of the planting holes is preferably 4-6cm, and more preferably bcm; and a depth of the planting holes is preferably 1~2cm, and more preferably 1.5cm. In the present in- vention, the spacing in the rows and the spacing between rows of the planting holes can guarantee a suitable planting density of

Trollius chinensis, which not only meets a yield demand in produc- tion, but also satisfies a later requirement for the tillering growth of Trollius chinensis. In the present invention, the diame- ter of the planting holes not only facilitates field operation, but also ensures water in the planting holes not prone to loss. In the present invention, the depth of the planting holes can not on-

ly ensure the germinated Trollius chinensis seeds to sprout out of the soil smoothly, but also satisfy the requirements of the germi- nation and growth of seeds for soil moisture.

In the present invention, a mixing weight ratio of the fine sand to the pregerminated seeds is preferably 50-80:1, and more preferably 60~70:1. In the present invention, the mixing weight ratio of the fine sand to the pregerminated seeds can not only satisfy a demand for the sowing amount of Trollius chinensis seeds, but also fully exert the efficacy of the fine sand on main- taining water and moisture. In the present invention, there is no special limitation to the sowing manner, and it is preferable to sow seeds by a seeder. A sowing amount is preferably 0.5-0.8kg/667m?, and more preferably 0.6-0.7kg/667m?. The sowing amount in the present invention guarantees a suitable planting density of Trollius chinensis, satisfies a later requirement for the growth and development of Trollius chinensis, and ensures a higher yield. In the present invention, a layer of white agricul- tural film is applied on the black agricultural film upon comple- tion of sowing; on one hand, this can ensure water in the planting holes not prone to loss, and on the other hand, the white agricul- tural film can also promote the seed germination and root growth of Trollius chinensis, so as to achieve the functions of seedling protection and strengthening. In the present invention, there is no special limitation to the source and quality of the white agri- cultural film, and conventional commercially available products in the art may be used. In a specific embodiment of the present in- vention, a width of the white agricultural film is preferably 100~150cm, and more preferably 130cm.

In the present invention, the white agricultural film is re- moved after more than 80% of seedlings have 1~2 true leaves true leaves emerged; at this time, the seedlings have strong adaptabil- ity to the environment, the white agricultural film has finished its task of seedling protection, and removing the white plastic agricultural film can also satisfy the requirement of the normal growth of the seedlings for sunshine.

Preferably, the seedling protection and strengthening are preferably performed by spraying a foliar fertilizer; an interval of spaying is preferably one time every 12-15 days, and more pref- erably one time every 12-13 days; a number of spraying times is preferably 3-5 times throughout a seedling stage, and more prefer- ably four times throughout the seedling stage. The spraying inter- val and the number of spraying times in the present invention can satisfy the normal requirement of seedlings for water and avoid a phenomenon of “burnt seedlings” caused by excessive spraying. In the present invention, there is no special limitation to the source and type of the foliar fertilizer, and conventional commer- cially available foliar fertilizer products in the art may be used.

In the present invention, the earth-up is performed prefera- bly when 5-6 true leaves emerge from each of the seedlings or the seedlings are 10~15cm high, and more preferably when the seedlings are 12~13cm high; at this time, the seedlings have grown to a suitable height for convenience of field operation. Moreover, earth-up at this time has a good effect on protecting seedlings and a remarkable effect on promoting growth. A height of the earth-up is preferably 3~4cm, and more preferably 3.5cm.

In the present invention, the adult plant management includes root application of a compound fertilizer before flower buds ap- pear; a number of root application times is preferably two times; an interval of the root application is preferably 7~10 days, and more preferably 8~9 days; and a fertilizing amount of the compound fertilizer is preferably 30~40kg/667m®, and more preferably 33~37kg/667m°. The application amount, the number of application times and the application interval of the compound fertilizer in the present invention can satisfy the requirement of Trollius chinensis for nutrients during flowering and avoid the phenomenon of “burnt seedlings” caused by excessive application. In the pre- sent invention, there is no special limitation to the source and type of the compound fertilizer, and conventional commercially available compound fertilizer products in the art may be used.

The technical solution provided by the present invention will be explained in detail below in combination with the embodiments, but these embodiments should not be understood as a limitation to the protection scope of the present invention.

Embodimentl {1) In April, 2016, a fertile soil land with an area of 6,670m? was selected from an Experimental Base in Guyuan Branch of

Ningxia Academy of Agricultural and Forestry Sciences in Lingou village, Guanzhuang Town, Longde County, Ningxia Province, China; on April 3%, the land was leveled up and ridged, the ridges were 5cm high and 100cm wide, and then ridges were mulched with a 150cm-wide black agricultural film. (2) On April 5%, 7kg of Trollius chinensis seeds were select- ed and placed in a plastic bucket, 12L of 59/L GA; aqueous solution was added to scak the seeds for 48h, and then the seeds were poured into a plastic mesh bag to drain the solution until no more water droplets leak. The drained seeds were uniformly dispersed in a mesh bag, and then incubated in a constant-temperature incubator for 3 days at a temperature of 25° and a humidity of 90%. (3) On April 8%", planting holes were made by a planting hole puncher at a spacing in the rows and a spacing between rows of 20x30cm, and the holes were 4cm in diameter and lcm in depth. Fine sand and the Trollius chinensis seeds were uniformly mixed at a ratio of 50:1, and sown in the planting holes by a seeder at a sowing amount of 0.7kg/667m°. Upon completion of the sowing, the ridges were mulched with a layer of 150cm-wide white agricultural film. (4) On May 15%, the Trollius chinensis seeds had germinated and more than 80% of the seedlings had 1 true leaf emerged, and then the white agricultural film was removed. (5) A foliar fertilizer (Chunyu No. 1, Henan Zhongwei Highs

Sci. & Tech. Chemical Co. Ltd.) diluted at a ratio of 1:1,000 was sprayed one time every 15 days, totally four times, and each seed- ling root was earthed up to a height of 3cm when a fifth true leaf emerged from the seedling. {6) In April 2017, Trollius chinensis perenial roots had de- veloped and grown into adult plants, weed between the ridges were removed in time, and before flower buds appeared, the root appli- cation of a compound fertilizer (Yangfeng Compound Fertilizer) was performed at a fertilizing amount of 30kg/667m° two times, with an interval of 7 days between the two times of fertilization.

(7) From June to September 2017, in a period without rain- fall, after the morning dew disappeared, the flowers with fully open sepals and uncpened petals were picked, with each flower stalk kept for 0.bcm during picking, and one batch was picked eve- ry 5 day. (8) The fresh flowers were evenly and lightly spread on a drying rack to avoid the accumulation of flowers, the flowers were dried for 2 days, and the dried flowers were lightly placed in a carton or paper bag and stored away from light for later use.

In 2018 and 2019, field management and harvesting were per- formed in accordance with the above-mentioned management measures.

In 2018, a total output of dried flowers was 316kg, with an aver- age of 31.6kg/667m?. In 2019, the total output of dried flowers was 344kg, with an average of 34.4kg /667m’.

Embodiment 2: (1) In August 2016, a fertile soil land with an area of 6,670m? was selected from a Planting Base in Xiji Ruitai Agricutur- al Development Co., Ltd. in Longwangba Village, Jigiang Town, Xiji

County, Ningxia Province. China; on August 20°, the land was lev- eled up and ridged, the ridges were 3cm high and 60cm wide, and then ridges were mulched with a 100cm-wide black agricultural film. (2) On August 21°%°, 8kg of Trollius chinensis seeds were se- lected and placed in a plastic bucket, 12 L of 5g/L GA: aqueous so- lution was added to soak the seeds for 48h, and then the seeds were poured into a plastic mesh bag to drain the solution until no more water droplets leak. The drained seeds were uniformly dis- persed in a mesh bag, and then incubated in a constant-temperature incubator for 2 days at a temperature of 20°C and a humidity of 80%. (3) On August 23%, planting holes were made by a planting hole puncher at a spacing in the rows and a spacing between rows of 15x30cm, and the holes were 6cm in diameter and 2cm in depth.

Fine sand and the Trollius chinensis seeds were uniformly mixed at a ratio of 60:1, and sown in the planting holes by a seeder at a sowing amount of 0.8kg/667m°. Upon completion of the sowing, the ridges were mulched with a layer of 100cm-wide white agricultural film, in order to ensure water in the planting holes not prone to loss. (4) On September 25%, the Trollius chinensis seeds had germi- nated and more than 80% of the seedlings had 2 true leaves emerged, and then the white agricultural film was removed. (5) A foliar fertilizer (Chunyu No. 1, Henan Zhongwei Highs

Sci. & Tech. Chemical Co. Ltd.) diluted at a ratio of 1:1,000 was sprayed one time every 10 days, totally three times, and each seedling root was earthed up to a height of 4cm when the seedling was 15cm high. (6) In June 2017, Trollius chinensis perenial roots had de- veloped and grown into adult plants, weed between the ridges were removed in time, and before flower buds appeared, the root appli- cation of a compound fertilizer (Yangfeng Compound Fertilizer) was performed at a fertilizing amount of 40kg/667m° two times, with an interval of 10 days between the two times of fertilization. (7) From June 15 to September 15, 2017, in a period without rainfall, after the morning dew disappeared, the flowers with ful- ly open sepals and unopened petals were picked, with each flower stalk kept for lcm during picking, and one batch was picked every 5 days. (8) The fresh flowers were evenly and lightly spread on a drying rack to avoid the accumulation of flowers, the flowers were dried for 3 days, and the dried flowers were lightly placed in a carton or paper bag and stored away from light for later use.

In 2018 and 2019, field management and harvesting were per- formed in accordance with the above-mentioned management measures.

In 2018, a total output of dried flowers was 263kg, with an aver- age of 26.3kg/667m?. In 2019, the total output of dried flowers was 314kg, with an average of 31.4kg/667m".

Embodiment 3: {1) In April 2017, a fertile soil land with an area of 6,670m? was selected from an Experimental Base in Xinhe Village,

Chenjin Town, Longde County, Ningxia Province, China. On April 10", the land was leveled up and ridged, the ridges were 4cm high and 80cm wide, and then ridges were mulched with a 120cm-wide black agricultural film.

(2) On April 11", 7.5kg of Trollius chinensis seeds were se- lected and placed in a plastic bucket, 12 L of 5g/L GA; aqueous so- lution was added to soak the seeds for 48h, and then the seeds were poured into a plastic mesh bag to drain the solution until no more water droplets leak. The drained seeds were uniformly dis- persed in a mesh bag, and then incubated in a constant-temperature incubator for 2 days at a temperature of 23°C and a humidity of 70%. (3) On April 13%", planting holes were made by a planting hole puncher at a spacing in the rows and spacing between rows of 25x35cm, and the holes were 5cm in diameter and Zcm in depth. Fine sand and the Trollius chinensis seeds were uniformly mixed at a ratio of 80:1, and sown in the planting holes by a seeder at a sowing amount of 0.75kg/667m°. Upon completion of the sowing, the ridges were mulched with a layer of 120cm-wide white agricultural film. (4) On May 18%, more than 80% of the Trollius chinensis seeds had germinated and the seedlings had 2 true leaves emerged, and then the white agricultural film was removed. (5) A foliar fertilizer {Chunyu No. 1, Henan Zhongwei Highs

Sci. & Tech. Chemical Co. Ltd.) diluted at a ratio of 1:1,000 was sprayed one time every 14 days, totally five times. Each seedling root was earthed up to a height of 4cm when the seedling was 10cm high. (6) In May 2017, Trollius chinensis perenial roots had devel- oped and grown into adult plants, weed between the ridges were re- moved in time, and before flower buds appeared, the root applica- tion of a compound fertilizer (Yangfeng Compound Fertilizer) was performed at a fertilizing amount of 35kg/667m° two times, with an interval of 8 days between the two times of fertilization. (7) From June to September 2018, in a period without rain- fall, after the morning dew disappeared, the flowers with fully open sepals and unopened petals were picked, with each flower stalk kept for 0.8cm during picking, and one batch was picked eve- ry 4 days. (8) The fresh flowers were evenly and lightly spread on a drying rack to avoid the accumulation of flowers, the flowers were dried for 3 days, and the dried flowers were lightly placed in a carton or paper bag and stored away from light for later use.

In 2019 and 2020, field management and harvesting were per- formed in accordance with the above-mentioned management measures.

In 2019, a total output of dried flowers was 303kg, with an aver- age of 30.3kg/667m?. In 2020, the total output of dried flowers was 337kg, with an average of 33.7kg /667m".

Comparative Example: Trollius chinensis was planted by a tra- ditional method of raising and transplanting seedlings (1) In April 2017, a fertile soil land with an area of 667m" was selected from an Experimental Base in Xinhe Village, Chenjin

Town, Longde County, Ningxia Province China. On April 10%", the land was leveled up and ridged, the ridges were 4cm high and 80cm wide, and then a small-scale arched greenhouse was erected. (2) On April 12%, 0.75kg of Trollius chinensis seeds were se- lected and placed in a plastic bucket, 1.2L of 5g/L GA: agueous so- lution was added to soak the seeds for 48h, and then the seeds were poured into a plastic mesh bag to drain the solution until no more water droplets leak. The drained seeds were uniformly dis- persed in a mesh bag, and then incubated in a constant-temperature incubator for 2 days at a temperature of 23°C and a humidity of 70%. (3) Fine sand and the Trollius chinensis seeds were uniformly mixed at a ratio of 80:1, then the Trollius chinensis seeds were sown on the ridges, seedlings were raised in the arched green- house, and management was performed by traditional measures until living through the winter. (4) on April 15%", 2018, the Trollius chinensis seedlings were transplanted into a land with an area of 6,670m® at a spacing in the rows and a spacing between rows of 25x35cm, and management was performed by traditional measures after transplanting. {5) From June to September 2018, in a period without rain- fall, after the morning dew disappeared, the flowers with fully open sepals and unopened petals were picked, with each flower stalk kept for 0.8cm during picking, and one batch was picked eve- ry 4 days. (6) The fresh flowers were evenly and lightly spread on a drying rack to avoid the accumulation of flowers, the flowers were dried for 3 days, and the dried flowers were lightly placed in a carton or paper bag and stored away from light for later use.

In 2019 and 2020, field management and harvesting were per- formed in accordance with the above-mentioned management measures.

In 2019, a total output of dried flowers was 28.6kg, with an aver- age of 2.86kg/667m*. In 2020, the total output of dried flowers was 242kg, with an average of 24.2kg /667m".

The comparison results between embodiment 3 and the compara- tive example showed that the plants cultivated by the traditional

Trollius chinensis planting method in the art had not entered a high yield period yet in 2019 and had a low yield; the plants cul- tivated by the method of the present invention had entered a high yield period in 2019, 1 year ahead of the traditional planting method; the plants cultivated by the traditional Trollius chinen- sis planting method in the art entered a high yield period in 2020 with an average yield of 24.2kg, which was decreased by about 205 as compared with an average yield of 30.3kg of the present inven- tion in 2019.

Those described above are only the preferred embodiments of the present invention. It should be noted that for those of ordi- nary skill in the art, a number of improvements and modifications may be made without departing from the principle of the present invention, and these improvements and modifications should also fall within the protection scope of the present invention.

Claims (10)

CONCLUSIONS A method of direct sowing Trollius chinensis, comprising the steps of: performing a pre-germination treatment on Troliius chinensis seeds; performing ridging, mulching the ridges with a black agricultural film, and making planting holes on the black agricultural film; mixing fine sand with the pre-germinated seeds, sowing the seeds, and mulching the ridges with a white agricultural film; after more than 803 of the seedlings have emerged 1~2 true leaves, removing the white agricultural plastic film; and performing seedling protection and reinforcement, ridging for seedling protection, and mature plant management. A direct seed planting method for Trollius chinensis of claim 1, wherein the pregermination treatment is specifically performed as follows: Trollius chinensis seeds are soaked for 48 hours with 5 g/L gibberellin aqueous solution, drained, and subjected to incubation at constant temperature at 20-25 °C. The direct seed planting method for Trollius chinensis of claim 1, wherein the ridges are 3-5 cm high and 60-120 cm wide. The direct seed planting method for Trollius chinensis of claim 1, wherein an inter-row spacing and an inter-row spacing of the planting holes are 15-30 x 30-40 cm, a diameter of the planting holes is 4-6 cm, and a depth of the planting holes is 1~2 cm. The direct seed planting method for Trollius chinensis of claim 1, wherein a mix weight ratio of the fine sand to the pregerminated seeds is (50~80):1. The direct seed planting method for Trollius chinensis of claim 1, wherein a sowing rate of the seeds is 0.5~0.8 kg/667 m°. The direct seed planting method for Trollius chinensis of claim 1, wherein the protection and strengthening of the seedling is performed by spraying a foliar fertilizer, and the step of spraying a foliar fertilizer is specifically performed by spraying the foliar fertilizer every 10-15 days, 3~5 times during a seedling stage. The direct seed planting method for Trollius chinensis of claim 1, wherein the ridging is performed when 5-6 true leaves emerge from each of the seedlings or the seedlings are 10-15 cm high. The direct seed planting method for Trollius chinensis of claim 1, wherein a height of the ridging is 3-4 cm. A direct seed planting method for Trollius chinensis of claim 1, wherein the management of the mature plant consists of applying a compound fertilizer to the roots before the flower buds appear, a number of root application times being twice , an interval of root application is 7-10 days, and an amount of the compound fertilizer is 30-40 kg/667 m? is.