CN113303204B

CN113303204B - Culture medium for potted peony, culture pot and culture method

Info

Publication number: CN113303204B
Application number: CN202110696994.5A
Authority: CN
Inventors: 朱向涛; 陈霞; 季雯; 金松恒
Original assignee: Jiyang College of Zhejiang A&F University
Current assignee: Jiyang College of Zhejiang A&F University
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2022-08-16
Anticipated expiration: 2041-06-23
Also published as: CN113303204A; CN115152582B; CN115152582A

Abstract

The invention relates to the field of agriculture and forestry. The culture medium for potted peony consists of turf, pearlite, vermiculite and rice husk. A potted peony cultivation pot comprises a flowerpot, wherein a potted peony cultivation substrate is contained in the flowerpot. Through test and comparison, the peony cultivated by the cultivation medium adopting the components is superior to the peony cultivated by other cultivation media. A method for cultivating potted peony, comprising the steps of planting the potted peony of any one of claims 4 to 7 in the bottom of 10 months, wherein the seedling is grown in four years and the water is applied every 15 days; the nutrient solution is poured for 3 times every 1 week 80 days after planting, and then the winter is normally overwintering indoors.

Description

Culture medium for potted peony, culture pot and culture method

Technical Field

The invention relates to the field of agriculture and forestry, in particular to ornamental flowers.

Background

Peony is a traditional famous flower in China and has high ornamental value, but the potting technology is always an important reason for limiting the development of the peony industry, and the culture medium of potted peony is an important factor for limiting the potting of peony.

Disclosure of Invention

The invention aims to provide a culture medium for potted peony.

The invention also aims to provide a culture pot for potted peony, which uses the culture medium for potted peony.

The invention also aims to provide a potted peony cultivation method, which is characterized in that a potted peony is cultivated by using the cultivation pot for potted peony and the cultivation substrate for potted peony.

The technical problem solved by the invention can be realized by adopting the following technical scheme:

the culture medium for potted peony is characterized by consisting of grass carbon, perlite, vermiculite and rice husk.

Has the advantages that: 1. through test and comparison, the peony cultivated by the cultivation medium adopting the components is superior to the peony cultivated by other cultivation media. 2. The rice hulls used in the invention are wastes in agricultural production, and a new direction is opened for the application of the rice hulls by taking the rice hulls as one of the components of the matrix, thereby being beneficial to the increase of the income of rice farmers. 3. The perlite and the vermiculite used in the invention can be treated at high temperature, and can improve the performances of the perlite and the vermiculite and improve the water and fertilizer absorption capacity of the matrix while sterilizing.

The pot for potted peony comprises a flowerpot body and is characterized in that a culture medium for potted peony is contained in the flowerpot body and consists of grass carbon, perlite, vermiculite and rice husk. The flowerpot comprises a basic pot and a superposed pot; the base basin is composed of a side wall and a bottom, the whole body is barrel-shaped, and a first drainage hole is formed in the bottom; the superposition basin is composed of a cylindrical body with openings at two ends and a curved surface cover body which is sunken downwards, the curved surface cover body is positioned in the cylindrical body, an upper port of the curved surface cover body is connected to the upper part of the inner side wall of the cylindrical body, a first opening is formed in the center of the curved surface cover body, the height of the first opening is not lower than that of the lower opening of the cylindrical body, and a second opening is formed in the curved surface cover body; an overlapping basin is arranged above the base basin.

Has the advantages that: 1. the cultivation pot adopts the cultivation medium, and the cultivated peony is superior to the peony cultivated by adopting other cultivation media. 2. The structure of the cultivation pot is optimized, the basic pot is convenient to replace by nesting the basic pot and the superposed pot, and the matrix components in the cultivation pot are updated by replacing the basic pot, so that the problem that the growth of the peony is influenced by the long-term nutrient deficiency of the household flower cultivation is solved.

A method for cultivating potted peony comprises planting potted peony in 10 months, wherein the seedling is grown for four years, and watering is performed once every 15 days; the nutrient solution is poured for 3 times every 1 week 80 days after planting, and then the winter is normally overwintering indoors. The peony cultivated by the method has high survival rate.

Drawings

FIG. 1 is a sectional view showing a structure of a pot for potted peony;

FIG. 2 is a cross-sectional view of one configuration of a stacked pot;

FIG. 3 is a schematic view of a structure of a stacked pot;

FIG. 4 is a schematic structural view of another structure of the superimposed pot;

FIG. 5 is a schematic view of an end cap;

fig. 6 is a top view of the whole formed by two end caps.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific drawings.

Culture medium for potted peony

The method is characterized in that the three peony varieties of the Lu lotus, the Yinhong Qiang Pao and the Luo Yang red are used as experimental materials, and the peony is cultivated by adopting cultivation matrixes with different matrix components in a pot culture mode. 12 combinations were set up, as in the following table:

group of	Culture medium	Mass ratio of the components
			A	Grass carbon: perlite: vermiculite	6:2:2
B	Grass carbon: loosening scales: coconut husk	6:2:2
			C	Grass carbon: coconut husk	1:1
D	Grass carbon: perlite	7:3
			E	Grass carbon: vermiculite	7:3
F	Grass carbon: perlite: vermiculite: mixed straw	3:1:1:1
			G	Grass carbon: perlite: vermiculite: coal cinder	3:1:1:1
H	Grass carbon: perlite: vermiculite: saw dust	3:1:1:1
			I	Grass carbon: perlite: vermiculite: pine needle	3:1:1:1
J	Grass carbon: perlite: vermiculite: rice husk	3:1:1:1
			K	Grass carbon: perlite: vermiculite: oak leaf	3:1:1:1

The cultivation method comprises the following steps:

the seedlings were grown for four years in a pot (hereinafter, the inside diameter of the cylindrical body of the pot) of 30cm at the bottom of 10 months, and water was poured once in about 15 days. The nutrient solution is poured for 3 times every 1 week 80 days after planting, and then the winter is normally overwintering indoors. And observing the growth vigor of the potted peony after the flower buds sprout in the next year.

The observation results are:

influence of different culture mediums on growth form indexes of peony variety' Lu He hong

Influence of different culture media on growth form indexes of peony variety Luoyanghong

Influence of different culture media on growth form indexes of peony varieties

The numerical values in the above three tables are the average values of the samples, so that the flower bud number and the leaf number are in the case of decimal numbers. The lower case letters such as abcdef in the above three tables represent the difference between samples, and the lower case letters are sorted according to the sequence of the alphabet, the more the sorting is, the smaller the difference between the samples is, and the more the sorting is, the larger the difference between the samples is. One sample contained at least fifty pots of the same variety of peony using the same potting medium. Comparing the data in the above tables, C, F found the matrix formulation to be the worst; the formula of the J matrix is optimal.

The components of the culture medium corresponding to the J group are as follows: the weight percentage of the grass carbon, the perlite, the vermiculite and the rice hull is 3:1:1: 1. The following analyses were performed on the components: the peat is a product in the development process of swamps, contains various elements such as rich nitrogen, potassium, phosphorus, calcium, manganese and the like, and is a purely natural organic substance. Perlite is acid lava erupted from volcanoes, and is vitreous rock obtained by rapid cooling, and has good adsorptivity and expansibility. Vermiculite is a hydrate, has higher layer charge number, and therefore has higher cation exchange capacity and stronger cation exchange adsorption capacity. The rice hull is rich in nutrient substances such as cellulose, lignin, silicon dioxide and the like. From the analysis it can be seen that: 1. the rice hulls are waste of agricultural production, and by taking the rice hulls as one of the matrix components, a new direction can be opened for the application of the rice hulls, and the increase of the income of rice farmers is facilitated. 2. The perlite and the vermiculite have better water and fertilizer absorption capacity. 3. Perlite and vermiculite are not prone to decay like humus soil and coconut husk, and can be secondarily utilized through high-temperature treatment after use.

The testing group with the peony variety 'luspearmint' substrate being A, B, C, F, H, I, J, the nutrient solution applied to the testing group with the peony variety 'yinhong' substrate being A, B, C, D, E, F, G, H, I, J, K is a self-prepared nutrient solution, and the nutrient solution comprises the following substances by mass: 945g/t calcium nitrate, 809g/t potassium nitrate, 153g/t sodium dihydrogen phosphate, 493g/t magnesium sulfate, 20g/t ferrous sulfate, 2.86g/t boric acid, 2.13g/t manganese sulfate, 0.22g/t zinc sulfate, 0.08g/t copper sulfate and 0.02g/t ammonium molybdate.

The method is characterized in that a part of peony seedlings in a test group with a peony variety Lu lotus matrix of D, E, G, K are applied with the self-prepared nutrient solution, a part of peony seedlings are applied with the commercially available nutrient solution, a test group with a peony variety Luo Yang red matrix of A, B, C, D, E, F, G, H, I, J, K is applied with the commercially available nutrient solution, and the commercially available nutrient solution is purchased from a shop, a manufacturer: standby agricultural group, Inc., Cathaki, Cathayata, Stichleya, Shidanli, Stichleya, Shitay, Stichi, Stichleya, Sprens, Shitah.L.: JS-SDLMDYYL, Capacity: 500 g 1 bottle, description of the pot life of a commercial nutrient solution: and (5) growing the whole period.

Comparing the values in the above three tables, both the self-prepared nutrient solution and the commercially available nutrient solution can provide nutrient elements for the growth of peony, but the peony flowers administered with the self-prepared nutrient solution have better consistency, small difference and more concentrated flowering time.

Referring to fig. 1, 2, 3, 4, 5 and 6, a pot for potted peony and a method for cultivating potted peony

A potted peony cultivation pot comprises a flowerpot, wherein a potted peony cultivation substrate is contained in the flowerpot. The flowerpot comprises a basic pot and an overlapped pot. The base basin is composed of a side wall and a bottom 10, the whole body is barrel-shaped, and a first drainage hole is arranged on the bottom. The stack basin comprises the both ends open-ended tube-shaped body 1 and the curved surface cover body 2 of undercut, and the curved surface cover body 2 is located the tube-shaped body 1, and the last port of the curved surface cover body is connected on the upper portion of the inside wall of the tube-shaped body, and the center department of the curved surface cover body is opened has first trompil 7, and the height of first trompil 7 is not less than the lower open-ended height of the tube-shaped body, and it has second trompil 8 to open on the curved surface cover body. In fig. 2, the upper part of the cylindrical body 1 is an upper opening 3, and the lower part thereof is a lower opening 4. The inner diameter of the cylindrical body is not larger than the outer diameter of the side wall of the foundation basin. The cylindrical body is seated on the side wall of the foundation basin. The cylindrical body of the superimposed basin can be provided with a side opening for water drainage and ventilation. Preferably, a downward extending notch is arranged at the lower opening of the cylindrical body, and the notch is used as a side opening. Under the condition of being provided with the side opening, a gap is not additionally arranged so as to ensure the structural strength.

The use method of the pot for potted peony comprises the following steps:

step one, inserting the peony into a first superposition basin, and then carding the root system of the peony to ensure that one part of the root system of the peony is positioned in the curved mask body and the other part of the root system penetrates through a first opening on the curved mask body and extends downwards. The downwardly projecting roots preferably comprise about three fifths to about seven tenths of the total root system. And step two, pouring the culture medium for potted peony, and burying the part of the peony in the mask body by using the culture medium for potted peony, so that the peony is fixed in the first superposed basin, and the peony absorbs the nutrition in the culture medium through the root system in the mask body. The peony leaks out through the part of the first opening extending downwards, and the beneficial effects are as follows: 1. can ensure the air permeability of the root system. 2. The nutrient solution is purposefully applied through the leaked root system according to the production condition of the peony. 3. The change of user of being convenient for observes the tree peony root system, judges the health condition of tree peony through the change of tree peony root system. 4. The root system is trimmed and shaped conveniently, so that the root system of the outer leakage part is thicker, and the peony can better adapt to the limited living environment of the root system space under the potted plant. Step three, after the root system of the peony grows to a certain length or the peony is planted for a certain time, a second stacked pot is arranged below the first stacked pot, the root system of the peony which extends downwards through the first opening in the curved cover body is inserted into the curved cover body of the second stacked pot, and a full-potted planting medium for planting the peony is filled between the upper end face of the curved cover body of the second stacked pot and the lower end face of the curved cover body of the first stacked pot. Step four, after the peony is cultivated for a certain time, a first basic pot is arranged below a second superposed pot, the first basic pot is filled with culture mediums for potted peony, no culture mediums for potted peony are filled between the upper end of the first basic pot and the lower end of the curved cover body of the second superposed pot, and step five, after the peony is cultivated for a certain time, the first basic pot is removed, the culture mediums for potted peony in the first basic pot are replaced, and then the first basic pot is arranged below the second superposed pot according to the method in the step four. The culture medium for potted peony in the basic pot can be replaced by directly replacing the basic pot with a new culture medium for potted peony. After removing the first basic pot, the root system of the peony protruding from the second or first opening of the second superimposed pot is preferably trimmed, preferably all of the protrusion is trimmed. The culture medium for potted peony is not filled between the upper end port of the first basic pot and the lower end face of the curved cover body of the second superposed pot, so that on one hand, the probability that the root system extends out of the first opening is reduced, and on the other hand, the first basic pot is convenient to remove. For conveniently adding the culture medium between the two superimposed basins, especially facing the filling problem of the culture medium in the space between the two superimposed basins, preferably, a side opening is arranged on the cylindrical body of the superimposed basin, strip-shaped protrusions are arranged at two edges of the side opening in the vertical direction, a sliding groove is formed in one side opposite to the strip-shaped protrusions, and a blocking piece 13 capable of sliding up and down is inserted in the sliding groove. The separation blade is opened, the cultivation substrate is filled inwards, after the cultivation substrate is filled, the separation blade is closed, the whole side opening is closed to the bottom, the whole side opening can be closed, a part can be closed, the side opening part is opened, and the opened part is used for ventilation and drainage. The root section can be cut by coating the root with ginkgo leaf leachate, and then coating the root with rooting powder aqueous solution. The folium Ginkgo leachate is preferably room temperature water soaked with folium Ginkgo. According to the invention, the ginkgo leaf leachate is smeared on the root, on one hand, the ginkgo leaf leachate has the functions of diminishing inflammation and sterilizing, and can be used for cleaning the wound surface of the root of peony; on the other hand, the leaves of the ginkgo leaf system ginkgo tree can be obtained from local resources by farmers, and the cost is reduced. In the flowering period of the peony, water or nutrient solution with purple color of the dragon fruit can be applied or poured on the leaf surface. The water or nutrient solution can be changed into purple by adding a purple dye into the water or nutrient solution. The juice of the red-heart pitaya can also be added into the water or the nutrient solution to make the water or the nutrient solution become purple. The peony can bring the dye or the juice of the dragon fruit to the petals by absorbing water, so that the petals are more gorgeous. Especially, the flower color is pink purple 'Lu Nehong'.

The height of the first opening is preferably higher than the height of the lower opening of the cartridge. On the one hand, allow the tree peony to insert the back, the stack basin stands when subaerial, guarantees that first trompil does not land to avoid the tree peony to stretch out the root system pressurized damage of first trompil, on the other hand can make the root system unsettled between stack basin and the basic basin, makes things convenient for removing of later stage basic basin.

The outer side wall of the cylindrical body 1 is provided with two first annular bulges protruding outwards, and the two first annular bulges are respectively positioned at two openings of the cylindrical body and are respectively a first annular bulge 5 positioned above and a first annular bulge 6 positioned below. The outside of lateral wall is equipped with outside bellied second annular arch, and second annular arch is close to the last port of lateral wall. So that the two parts are fixed together by the annular protrusion when the superimposed pot and the superimposed pot are superimposed or when the superimposed pot and the base pot are superimposed. Four bolt holes are formed in the first annular bulge at equal intervals, bolt holes are also formed in the second annular bulge at the position corresponding to the first annular bulge, and bolts enabling the first annular bulge and the second annular bulge to be fixed together are inserted into the bolt holes opposite to each other.

The upper end face of the bottom of the foundation basin is provided with a plurality of first strip-shaped grooves 11 which are parallel to each other, the lower end face of the bottom of the foundation basin is provided with a plurality of second strip-shaped grooves 12 which are parallel to each other, the first strip-shaped grooves and the second strip-shaped grooves are arranged alternately, the depths of the first strip-shaped grooves and the second strip-shaped grooves are both greater than one half of the thickness of the bottom, through holes 9 which enable the two grooves to be communicated are arranged between the first strip-shaped grooves and the second strip-shaped grooves, the through holes are used as drain holes, one end opening of each through hole is arranged on the side wall of the corresponding first strip-shaped groove, and the other end opening is arranged on the side wall of the corresponding second strip-shaped groove. The structure of the base basin bottom is optimized, on one hand, a plurality of channels are creatively constructed by adopting the strip-shaped grooves as the bottom of the base plate, and the ventilation and the drainage of the root of the peony are facilitated. On the other hand, the existing bottom lower drainage is changed into side drainage, the part of the first strip-shaped groove below the through hole can be used for storing water, and the water storage and water retention effects are achieved. The through holes can be holes or strip-shaped through grooves.

The faceplate can also comprise end covers, the end covers preferably comprise sectors 14 and connecting pieces 15 positioned at the end parts of the sectors, pin holes 16 are formed in the connecting pieces, the two end covers are in a group, the end covers positioned in the same group are oppositely placed, and after the connecting pieces are opposite up and down and the pin holes are aligned, the whole formed by the two end covers is in a circular ring shape. The outer diameter of the circular ring is equal to the inner diameter of the cylindrical body, so that the circular ring is clamped in the cylindrical body and is pressed against the curved surface cover body. The flower stem of the peony passes through the circular ring. The invention adopts a structure that the two end covers are buckled, so that the flower stem of the peony can conveniently extend out, and the flower stem of the peony can be prevented from being damaged in the cultivation process. According to the invention, the end cover is used for applying pressure to the culture substrate on the curved cover body, so that the culture substrate is more uniformly compacted, and the problems of peony dumping, peony turning-out and the like caused by unrealistic culture substrates after peony cultivation are avoided. Meanwhile, the positioning and supporting functions on the peony can be realized, and the problems of peony toppling and the like can be avoided, especially when the peony is newly cultivated. In order to better exert the supporting function, the inner edge of the sector is provided with a flanging extending upwards or downwards, and the contact area between the flanging and the peony is increased. Preferably, two connecting pieces are respectively arranged at two ends of the sector, and a gap 17 is arranged between the two connecting pieces. This clearance has ventilative mouthful, the effect of water filling port after the cultivation on the one hand, and in the accessible sharp thing stretched into the clearance on the one hand, the end cover was taken out from the stack basin to the light of utilizing sharp thing. During cultivation, the end cover plays a role in compacting the cultivation substrate, plays a role in protecting seedlings, preserving water and preserving heat in the early stage of cultivation, and can be removed in the later stage of cultivation.

The basic basin, the superimposed basin and the end cover can be made of plastic materials. Preferably, both are of recyclable plastic material. Or mixed materials, such as a cylindrical body made of coconut shells and a curved cover body made of plastics. But also ceramic, china clay. When the basin is made of ceramics and pottery clay, the service lives of the basic basin, the superposed basin and the end cover are longer. However, the ceramic and the argil need to be subjected to a high-temperature firing process, and the firing process is easy to deform, so that the strip-shaped bulges, the sliding grooves and the blocking pieces are not required to be arranged. But optimizes the structure and material of the baffle plate. For example, the separation blade is elastic separation blade, and open around elastic separation blade has the opening recess outwards, and elastic separation blade passes through the recess joint on the side opening. Or a strip-shaped bulge and a sliding groove can be arranged, and the blocking piece is made of plastic.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The pot for potted peony comprises a flowerpot and is characterized in that a culture medium for potted peony is contained in the flowerpot and consists of grass carbon, perlite, vermiculite and rice husk, and the mass percentage of the grass carbon, the perlite, the vermiculite and the rice husk is 3:1:1: 1;

the flowerpot comprises a basic pot and a superposed pot;

the base basin is composed of a side wall and a bottom, the whole body is barrel-shaped, and a first drainage hole is formed in the bottom;

the superposition basin is composed of a cylindrical body with openings at two ends and a curved surface cover body which is sunken downwards, the curved surface cover body is positioned in the cylindrical body, an upper port of the curved surface cover body is connected to the upper part of the inner side wall of the cylindrical body, a first opening is formed in the center of the curved surface cover body, the height of the first opening is not lower than that of the lower opening of the cylindrical body, a second opening is formed in the curved surface cover body, one part of a root system of peony is positioned in the curved surface cover body, and the other part of the root system penetrates through the first opening in the curved surface cover body and extends downwards; the aperture of the first opening is larger than that of the second opening, and the height of the first opening is lower than that of the second opening;

a superposition basin is arranged above the foundation basin;

the cylindrical body of the stacking basin is provided with side openings, the side openings are located on two edges in the vertical direction and are provided with strip-shaped bulges, one side, opposite to the strip-shaped bulges, of each strip-shaped bulge is provided with a sliding groove, a separation blade is inserted into each sliding groove, the separation blade is opened, cultivation substrates are filled inwards, and after the cultivation substrates are filled, the separation blade is closed.

2. The pot for cultivating potted peony of claim 1, wherein the inner diameter of the cylindrical body is not greater than the outer diameter of the side wall of the pot.

3. The pot for cultivating potted peony as claimed in claim 1, wherein the outer side wall of the cylindrical body is provided with two first annular protrusions protruding outwards, and the two first annular protrusions are respectively located at two openings of the cylindrical body;

the outer side of the side wall of the basic basin is provided with a second annular bulge which is bulged outwards, and the second annular bulge is close to the upper end opening of the side wall;

four bolt holes are formed in the first annular bulge at equal intervals, and bolt holes are also formed in the second annular bulge at the position corresponding to the first annular bulge.

4. The pot for cultivating potted peony of claim 1, wherein the upper end surface of the bottom of the pot has a plurality of first bar-shaped grooves parallel to each other, the lower end surface of the bottom of the pot has a plurality of second bar-shaped grooves parallel to each other, the first bar-shaped grooves and the second bar-shaped grooves are arranged alternately, the depth of each of the first bar-shaped grooves and the second bar-shaped grooves is greater than one half of the thickness of the bottom, a through hole for communicating the two grooves is provided between the first bar-shaped grooves and the second bar-shaped grooves, the through hole serves as a drain hole, one port of the through hole is opened on the side wall of the first bar-shaped groove, and the other port is opened on the side wall of the second bar-shaped groove.

5. A potted peony cultivation pot as claimed in any one of claims 1 to 4, wherein the flower disc further comprises end caps, the end caps are comprised of sectors and connecting pieces located at the ends of the sectors, the connecting pieces are provided with pin holes, the two end caps are in a group, the end caps in the same group are oppositely placed, and after the connecting pieces are opposite up and down and the pin holes are aligned, the two end caps form a whole ring shape;

the outer diameter of the circular ring is equal to the inner diameter of the cylindrical body, so that the circular ring is clamped in the cylindrical body and is pressed against the curved surface cover body.

6. The potted peony cultivation method is characterized by comprising the following steps of firstly, inserting peony into a first superposed pot of a potted peony cultivation pot, and then carding root systems of the peony to enable part of the root systems of the peony to be located in a curved mask body and part of the root systems to penetrate through a first opening on a curved mask body and extend downwards;

pouring a culture medium for potted peony, burying the part of the peony in the mask body by using the culture medium for potted peony, so as to fix the peony in the first superposed basin, wherein the peony absorbs nutrition in the culture medium through a root system in the mask body, the culture medium for potted peony consists of grass carbon, perlite, vermiculite and rice husk, and the mass percentage of the grass carbon, the perlite, the vermiculite and the rice husk is 3:1:1: 1;

step three, after the root system of the peony grows to a certain length or the peony is planted for a certain time, installing a second superposed basin below the first superposed basin, inserting the root system, which downwardly extends through a first open hole in a curved surface cover body, into the curved surface cover body of the second superposed basin, arranging a side opening on a cylindrical body of the superposed basin, arranging strip-shaped bulges at two edges of the side opening in the vertical direction, arranging a sliding groove at one side, which is opposite to the strip-shaped bulges, inserting a blocking piece capable of sliding up and down in the sliding groove, opening the blocking piece, inwards filling a culture medium, closing the blocking piece after filling, and filling the culture medium for potted peony between the upper end surface of the curved surface cover body of the second superposed basin and the lower end surface of the curved surface cover body of the first superposed basin;

step four, after the peony is cultivated for a certain time, arranging a first basic pot below a second superposed pot, filling the first basic pot with a culture medium for potted peony, and not filling the culture medium for potted peony between the upper end port of the first basic pot and the lower end face of the curved cover body of the second superposed pot;

and step five, after the peony is cultivated for a certain time, removing the first basic pot, trimming the root system of the peony extending out of the second opening or the first opening of the second superposed pot, replacing the culture medium for potted peony in the first basic pot, and then installing the root system below the second superposed pot according to the method in the step four.

7. A method of cultivating potted peony according to claim 6, wherein the potted peony is cultivated in a pot in the bottom of 10 months, the seedling is four years old, and water is applied every 15 days;

watering the nutrient solution for 3 times every 1 week 80 days after planting, and then normally overwintering indoors; the nutrient solution comprises the following substances by mass: 945g/t calcium nitrate, 809g/t potassium nitrate, 153g/t sodium dihydrogen phosphate, 493g/t magnesium sulfate, 20g/t ferrous sulfate, 2.86g/t boric acid, 2.13g/t manganese sulfate, 0.22g/t zinc sulfate, 0.08g/t copper sulfate and 0.02g/t ammonium molybdate.