AU2018102189A4

AU2018102189A4 - Method for growing grafted cherry blossom sapling

Info

Publication number: AU2018102189A4
Application number: AU2018102189A
Authority: AU
Inventors: Xiuwu HU; Chunfeng Liu; Wei Liu; Jianxin Wu; Hu ZHANG; Yuhua ZHOU
Original assignee: Jiangsu Vocational College Of Agriculture And Forestry
Current assignee: Jiangsu Vocational College Of Agriculture And Forestry
Priority date: 2018-03-28
Filing date: 2018-08-13
Publication date: 2020-11-12
Anticipated expiration: 2026-08-13
Also published as: CN108668731A; WO2019184196A1

Abstract

The invention discloses a method for cultivating Cerasus sp. grafted seedlings, which comprises the steps of: sowing rootstock seedlings: sowing Cerasus sp. seeds on a seedbed in spring, and lifting seedlings and making temporary planting when Cerasus sp. leaves start to change color in autumn; optimal selecting: selecting a Cerasus serrulata seedling with the ground diameter of above 0.8 cm as a rootstock, cutting off the length of 3/4-1/4 of a main root, and then planting; grafting and propagation: carrying out grafting in the spring of a second year, and densely planting on the seedbed after the grafting, with the density of 20-30 plants/m 2 ; and carrying out pruning management to the grafted seedlings. Strong first-level Cerasus sp. grafted seedlings with high quality can be cultivated with a series of cultivation measures.

Description

METHOD FOR CULTIVATING CERASUS SP. GRAFTED SEEDLING TECHNICAL FIELD

The invention relates to Cerasus sp. seedling cultivation, in particular to a method for cultivating Cerasus sp. grafted seedling.

BACKGROUND ART

Cerasus sp. is a joint name for several species of Rosaceae Cerasus Mill. Cerasus sp. is originated in the temperate zone of the northern hemisphere around Himalayas, and grows around the world, mainly in Japan. 3 to 5 flowers per branch form an umbrella-shaped inflorescence, petal tips are absent, and the flower color is mostly white and pink. Flowers often blossom with leaves or after leaves in March, with seasonal changes. The color of Cerasus sp. is gorgeous and beautiful, commonly used in gardens. Cerasus sp. can be divided into single-petal and double-petal types, the single-petal can flower and fruit, and the double-petal is mostly fruitless. According to the literature, Cerasus sp. was cultivated in Chinese palace garden in Qin and Han dynasties more than two thousand years ago. Cerasus sp. appeared in private courtyards in Tang Dynasty. At that time, many countries came to worship China. Japanese pilgrims brought Cerasus sp. back to their country, and Cerasus sp. has a history of more than 1000 years in Japan. The Cerasus sp. is a hot, pure and noble symbol.

Cerasus sp. is an arbor, 4-16 meters high. Its winter buds are oval and hairless. The buds sprout in an intergrowth state, and the sprouting of branches are disordered in the growth process, so the shape of the crown is oval, basin- or umbrella-shaped (see Fig. 1), the under crown height is not suitable to be determined in a natural state, the production standard of the Cerasus sp. cannot be standardized, and the phenomena of branch tip missing, bending and multiple tips often occur.

SUMMARY OF THE INVENTION

Object of the invention: in order to solve the problems in the prior art, the invention provides a cultivation method capable of standardized production of Cerasus sp. grafted seedlings for cultivating strong first-level Cerasus sp.

grafted seedlings with high quality.

Technical solution: the method for cultivating the Cerasus sp. grafted seedlings comprises the steps of:

(1) sowing rootstock seedlings: sowing Cerasus serrulata seeds on a seedbed in spring, and lifting seedlings and making temporary planting when Cerasus sp. leaves start to change color in autumn;

(2) optimal selecting and planting with root cutting: selecting a Cerasus serrulata seedling with the ground diameter of more than 0.8 cm as a rootstock, cutting off the length of 3/4-1/4 of a main root, and then planting;

(3) grafting and propagation: carrying out grafting in the spring of a second year, and densely planting on a seedbed after the grafting, with the density of -30 plants/m 2 ;

(4) carrying out pruning management to the grafted seedlings, comprising:

pruning a whole plant: cutting off all branches within 1/3 of the tree height of the lower part of the plant according to the tree height;

reasonably reserving branches: thinning out 1/2-1/4 number of branches of upper 2/3 of the tree body, wherein the included angle of adjacent branches is in the range of 90-120°;

tip processing: trimming away double tips of the plant in time, and leaving a robust and straight branch as a main branch; for the phenomenon that the main branch is missing, adjusting and straightening an uppermost branch; and binding and straightening the main branch with bent tips; and

determination of reasonable under crown height: determining the under crown height of the plant according to the requirements of the market for seedling formation.

It comprises stratifying and sterilizing the Cerasus serrulata seeds before sowing, applying a decomposed organic fertilizer to the seedbed before sowing, and directly turning the organic fertilizer into soil during soil preparation in the step (1), wherein the application amount of the organic fertilizer is 2-4 kg/M 2 .

The stratifying treatment is a method for breaking dormancy of seeds, that is, the seeds are buried in wet sand at a temperature of 1-100 C, and the dormancy can be effectively broken after 1-3 months of treatment. Before sowing, the seeds are poured into 40°C warm water (mixed with 20 g/20 L carbendazim for disinfection) for one day and night, and washed twice with clear water for sowing; during sterilization, 40-60 mL/m 2 30-50% formalin added with 10-12 kg/M2 water is sprayed on soil 7-12 days before sowing; specifically, 50 mL/m2 40% formalin added with 10-12 kg/M2 water is sprayed on the soil 10 days before sowing.

After sowing, a layer of straws are covered on the seedbed to strengthen water management before germination; and the straws are timely removed after germination.

The optimal selection is very important, which is directly related to whether the quality of later seedlings is uniform or not, and the selected rootstocks are additonally cultivated by a container. When the rootstock is planted, a plurality of fibrous roots can be formed after the main roots of the rootstock are cut off for a certain length, and the planting survival rate is improved. Further, the main roots of the rootstock are cut off for 1/2 of the length and then densely planted on the seedbed, with the density of 24 plants/m2 . The proportion of soil for planting in the container is composed of 10 parts of rotten leaf soil, 2 parts of perlite and 1 kg/M3 of compound fertilizer (N : P : k is 15 : 15 : 15) by weight.

A cutting grafting method can be adopted in the grafting. A grafting position is 3-8 cm above the ground, further, 5 cm above the ground, and a middle section of a branch of a mother plant is selected for scions.

In step (5), the pruning management further comprises conventional pruning such as pruning over-dense branches, crossed branches, dead branches, parallel branches, diseased branches and the like of the plants.

During straightening, upright post binding is adopted for straightening, and deep ditches on the stems of the seedlings after binding should be avoided after the binding.

The rootstock of Cerasus sp. is Cerasus serrulata.

Compared with the prior art, the invention has the following beneficial effects.

1. Fertilizer and water management is strengthened, so that the rootstock can reach the grafting standard as soon as possible; and the rootstock which is not suitable for grafting is removed by optimizing the rootstock seedling, and the method plays a decisive role in cultivating uniform specifications and carrying out standardized production in the later period.

2. By cutting roots, the root system of the seedling forms more fibrous roots, the root system is promoted to be exuberant, the survival rate of transplanting the seedling is improved, and a foundation is laid for height and thickening growth of the seedling in the later period.

3. The container cultivation is adopted for the seedlings to facilitate the removal in the management process, all inconveniences caused by in-situ seedling cultivation are avoided, and the cost is saved; it also facilitates the grafting of the seedlings by workers, and it is beneficial to the management in the seedling cultivation process. Meanwhile, the condition that "complete roots, full crowns and all weather" is required in the greening process is achieved.

4. Nutrient soil for container cultivation is prepared, so that the soil for cultivation is more suitable for the requirements of the Cerasus sp. on good soil loosening, ventilation and drainage; and the soil is rich in nutrients, meets the requirements of the Cerasus sp. seedlings on soil pH value, nutrient components and physical properties, and enables Cerasus sp. to quickly form finished seedlings.

5. The height growth of the seedlings is accelerated by the dense planting, and the requirement for the height growth of the seedlings is met in a short period.

6. By pruning the branches, the space required by each branch is reasonably allocated to obtain more illumination, so that photosynthesis is fully carried out, more nutrient substances are formed, and plants can grow rapidly.

7. The treatment of the tips is reasonable and effective to avoid the waste of plants.

8. With the above measures, the cultivation time of the finished seedlings is greatly shortened, and the finished seedlings can be obtained in three years generally.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 shows crown characters of Cerasus sp., wherein A is umbrella-shaped,

B is basin-shaped, and C is broadly ovate;

Fig. 2 shows a grafting position and a root cutting position of the invention;

Fig. 3 shows pruning requirements for branches within 3 years of the present invention; A: branches at a base part of 1/3 of tree height are completely trimmed off, B: a part of the branches at an upper part of the tree are trimmed away, and C: 1/3 of the tree height;

Fig. 4 is a schematic view of the treatment of plants with missed tips according to the present invention;

Fig. 5 is a schematic view of the treatment of plants with bent tips according to the present invention;

Fig. 6 is a view showing a requirement (1) for binding upright posts according to the present invention;

Fig. 7 is a view showing a requirement (2) for binding the upright posts according to the present invention;

Fig. 8 is a view showing a requirement (3) for binding the upright posts according to the present invention;

Fig. 9 is a view showing the phenomenon to be avoided after binding the upright posts;

Fig. 10 is a view showing a branch reserved requirement after pruning branches at the upper part of the tree body according to the present invention.

DETAILED DESCRIPTION OF THE INVENTION

The present invention will be further illustrated and described with reference to specific embodiments thereof, and it should be understood that these embodiments are merely illustrative of and not restrictive on the scope of the invention. Modifications to various equivalent forms of the invention by those skilled in the art, after reading the present invention, are intended to fall within the scope of the appended claims.

Embodiment 1

A method for cultivating high-quality Cerasus sp. grafted seedlings is as follows.

1. Sowing rootstock seedlings (within the first year)

(1) Stratifying: during November to December, harvested Cerasus serrulata seeds (used as stocks) are subjected to low-temperature stratification treatment for sowing in March.

(2) Fertilizing: in March, the nursery field is made into a 1-1.1 m wide seedbed with a furrow width of 40 cm and a bed height of 20 cm. 2 kg/M2 of organic fertilizer (decomposed) is spread on the seedbed, and the organic fertilizer is directly turned into soil during soil preparation.

(3) Sterilizing: 50 mL/m2 40% formalin added with 10-12 kg/M2 water is sprayed on soil 10 days before sowing; the seeds are poured into 40C warm water (mixed with 20 g/20 L carbendazim for disinfection) for one day and night, and washed twice with clear water for sowing.

(4) Sowing: a uniform sowing method is adopted, and the sowing amount is 25 g or 250 grains/m 2 . After the sowing, a thin layer of straws are covered on the seedbed to strengthen water management before germination.

2. Rootstock seedling stage management (within the first year)

(1) Managing after germination: the seeds germinates in May; and it is a period of vigorous weed growth from June to September, and the weeds must be "removed as early and small as possible".

(2) Lifting seedling: when in autumn and Cerasus sp. leaves start to change color, it lifts seedlings and makes temporary planting.

(3) optimal selecting: the grading is done according to the ground diameter, and the rootstocks with the ground diameter of above 0.8 cm are selected (if the ground diameter is too thin, the rootstock should not be grafted).

(4) Cutting roots: 1/2 of the length of the root system (i.e. 1/3 of the length of the root system remaining from the root collar) is cut off from the main root of the optimized seedling to form a plurality of fibrous roots and improve the planting survival rate. It is additionally planted in a non-woven fabric container. See planting requirements from the root cutting and soil preparation steps.

(5) Mixing soil: the planting soil proportion in the non-woven fabric container includes 10 parts of rotten leaf soil (grass scraps in the rotten leaf soil can be crushed into scraps with the size below 12 meshes (the composition of rotten leaf soil is that it is prepared by crushing withered leaves or stalks, mixing them with vegetable cakes and garden soil, and retting), 2 parts of perlite and 1 kg/m3 of compound fertilizer (N : P : K is 15 : 15 : 15). The non-woven fabric container for planting is 20 cm in caliber after being filled with soil.

3. Grafting and propagation (within the second year)

(3) Grafting: the grafting is carried out in March using the cutting grafting method (a middle section of a branch of a mother plant is selected for scions). The grafting position is 5 cm above the ground. See Fig. 2.

(4) Densely planting: after the grafting, they are placed on the seedbed, with the density of 25 plants/m 2 . The management of fertilizer, water and weeds is strengthened.

4. Pruning (second year and later)

In addition to pruning over dense branches, crossed branches, dead branches, parallel branches, diseased branches of plants, the pruning should be carried out according to the following measures (the pruning management is carried out when leaves fall after the grafting).

(1) Pruning a whole plant: according to the height of the tree, all branches within 1/3 of the tree height of the lower part of the plant are cut off, and these branches are formed by small-sized leaves, so that the obtained nutrients are less, and the growth of the branches is weak; and due to the fact that the branches are positioned at the lower layer, most branches are withered due to natural pruning. See Fig. 3.

(2) Reasonably reserving branches: 1/3 of branches at the upper 2/3 part of the tree body can be thinned out, and the included angle of adjacent branches is in the range of 90-120°, so that sunlight cannot be mutually shielded between every two branches, and the space is sufficiently and reasonably occupied so as to facilitate the rapid height growth of plants. See Fig. 10.

(3) Tip processing: double tips of the plants are trimmed away in time, leaving a robust and straight branch as a main branch; for the phenomenon that the main branch is missing, an uppermost branch can be adjusted and straightened by an upright post, as shown in Fig. 4. The bent main branch of the tip is also straightened by binding, see Fig. 5. The binding method with the upright post can be seen in Figs. 6, 7 and 8. During the binding, the binding position is in the range of 80 cm -1 m of the height of the trunk; a straight and upright post is selected, with the length of about 1.3-1.5m; the upright post is inserted into one side of the trunk, and into soil by 30 cm -50 cm, and the distance between the upright post and the trunk is not more than about 5 cm; and a thick non-woven fabric is taken to be bound on the trunk, and after tightening it with a string, one end of the string is tied to the upright post, as seen in Fig. 6. The fastening method of the string may be as shown in Fig. 7, and either method can be applied. The final effect is shown in Fig. 8. Too-deep ditches on the stems of the seedlings after binding should be avoided, as shown in Fig. 9.

(4) Determining reasonable under crown height: according to the requirements of the market for finished seedlings, the under crown height of the plant is reasonably determined. There may be remained with 1 m, 1.5 m, 1.8 m, 2 m, etc.

Embodiment 2

1. Rootstock cultivation

The cultivation of rootstock seedlings is the first step in the cultivation of Cerasus sp. finished-product seedlings. Improving the germination rate of rootstock seeds and cultivating strong rootstock seedlings as soon as possible are the most important contents in this step.

1.1 Effect of stratification and sterilization treatment on germination rate

Experimental method:

Broken leaves, seed coats and the like are removed from Cerasus serrulata seeds by adopting a winnowing method, and the Cerasus serrulata seeds are stratified by using clean sand; the stratifying method includes that the spinning cloth is cushioned on a bottom layer of a selected basket, then a layer of sand and a layer of seeds are layered until all the seeds are stratified; and it should be noted that the sand must be moist and cannot be dried excessively, and the basket is placed in a shade and cool place after the stratifying. The seeds are taked out in March, screened out the sand, poured into 40°C warm water (mixed with 20 g/20 L of carbendazim for disinfection) for one day and night, and washed twice with clear water for sowing.

The effects of single and double treatments on germination rate of rootstock seeds are determined during the sowing. The single treatment means that the seeds are only stratified without sterilization (the sterilization includes sterilization of carbendazim and formalin for soil), or only sterilized without stratification. The double treatments refer to both stratification and sterilization for the seeds. Control refers to neither stratification nor sterilization. The treatment results are collected statistically on December 1 and shown in Table 1. Table 1 Effect of different treatments on germination rate

Germination Rate (%) Stratification Sterilization Control

Single treatment 72.3 68.1 46.8

Double treatments 88.4

It can be seen from Table 1 that the germination rate of the control is only 46.8% at the lowest. When in the double treatments, the germination rate of the seeds only subjected to the stratification treatment is 72.3%, 54.5% higher than that of the control, and 6.2% higher than that of the sterilization treatment only. However, the germination rate of seeds reaches 88.4% after the double treatments, which is 22.3% higher than that of the single treatment, indicating that the roles of stratification and sterilization in seed germination are superimposed. Therefore, stratification and sterilization are indispensable for seed germination.

1.2 Effect of fertilization before sowing

Experimental method:

A land parcel is fertilized before sowing. Before fertilization, the seedbed must be subjected to rotary tillage. In the rotary tillage process, the organic fertilizer is uniformly spread on the surface of the seedbed. The smaller the soil block is, the better the ploughing is, and the seedbed should be flat, clean and uniform.

Two treatments of fertilization and no fertilization (control) are adopted in the effect of fertilization before sowing on the rapid growth of rootstock seedlings. The rootstock seedlings in 3 areas of 1 square meter (side length 1 x 1 m) are randomly selected on the seedbed on December 1 to survey the average tree height, average ground diameter and average branch number of rootstock seedlings, respectively, as shown in Table 2.

Table 2 Effect of two treatments on seedling growth

Fertilizati Control Higher rate (%) from the on fertilization than the control

Average seedling 60.7 46.2 31.4 height (h)

Average ground 0.62 0.45 37.8 diameter (cm)

Average branch 4.5 3.8 18.4 number

As can be seen from Table 2, the effect of fertilization is significant. The rootstock seedlings fertilized is 31.4% higher in average seedling height, 37.8% higher in the average ground diameter, and 18.4% higher in average branch number than the control. The first-level seedling rate after fertilization reaches 43.7%, while the control is only 29.4%, so the effect of fertilization on the growth of rootstock seedlings is obvious.

2. Effect of root cutting on rootstock seedlings

Experimental method:

1/2 length of the main root is cut off from the optimized seedling by using a sharp pruning shear. The seedling with an uncut root is used as a control, and the number of fibrous roots and the survival rate are counted.

Comparing the root cutting with the control, it can be seen from Table 3 that the number of fibrous roots is greatly increased by 155.1%, the survival rate is also increased by 9.7%, and the average root length is decreased by 14% compared with the control. Therefore, the two important indexes are significantly higher than those of the control.

Table 3 Effect of root cutting on root system growth and transplanting survival rate

Root Control Higher rate (%) than cutting the control

Average fibrous 238.3 93.4 155.1 root

Average root length 9.2 10.7 -14

(cm)

Survival rate(%) 98.3 89.6 9.7

3. Effect of dense planting on height growth of grafted seedlings

Experimental method:

The grafted seedlings with the root system cut are planted by the non-woven fabric, and arranged on a seedbed. Three rows are dense planting, followed by sparse planting (4 plants/m 2 ), and the seedlings are planted in turns. In the survey, any place in the middle row of the three rows is selected as a survey plot to establish an area of 1 m 2 (side length 1 x 1 m) for the survey. The same method is used to select a survey plot for the sparse planting.

Densely planting and control treatments are applied for a comparison experiment of the cut seedlings. The dense planting is 25 plants/m2 and the control is 4 plants/m 2 , which is surveyed on December 1 of the year, see Table 4.

Table 4 Effect of dense planting on height growth of grafted seedlings

Dense Control Higher rate (%) than planting the control

Average tree 1.76 1.43 23.08 height (m)

Average DBH 1.03 1.52 -32.24 (cm)

As can be seen from Table 4, the effect of dense planting on plant height and DBH is significant. The dense planting is 23.08% in the average tree height higher than that of the control, but 32.24% in the average DBH less than that of the control. Therefore, the dense planting method could effectively promote the high growth, but it is negative for DBH growth.

4. Effect of pruning treatment on high-quality seedling rate

Experimental method:

The position of the pruning is particularly important to the formation of the seedling. At first, the pruning is carried out for a base of the plant on a part generally below 1/3 of a tree height, and most of all branches are pruned off at this position. The second part is an upper 2/3 part of the plant. In addition to pruning dead branches, diseased branches, crossed branches and the like, 1/3 number of branches are frequently pruned away in order to enable each branch to obtain more sufficient space, and the included angle between each branch is uniform. Thirdly, treatment of the tips. The double tips must be trimmed away with a weaker one to leave a strong upright branch, and a bent branch should be straightened by binding an upright post as shown in Fig. 5. The control does not have any treatment.

The high-quality seedling is a high and straight seedling without bending, double tips, bent tips and so on, and with small taperingness. Four pruning methods are used, i.e. 1/3 pruned at the plant base, 2/3 reserved at the upper part of the plant, tip treatment and control. No measures are used in the control, and the seedlings are allowed to grow naturally. As can be seen from Table 5, the results of the single treatment are not particularly significant, with a maximum being 76.9% for the treatment of 2/3 reserved at the upper part of the plant, and a minimum being the treatment of 1/3 pruned away from the plant base. The analysis shows that the treatment of 1/3 pruned away from the plant base has no significant effect on the seedlings, because most branches at the plant base are naturally pruned due to dense planting, and the number of branches is not much. For the tip treatment, Cerasus sp. is an intolerant tree species after all, and apical dominance is stronger, so the phenomenon of bending and missing tips is not much. However, the triple treatment results obviously reflect the superposition of the three treatment results, the high-quality seedling rate reaches 89.5%, which is 22.5% higher than the single treatment average. Therefore, various pruning measures are indispensable in the pruning process of Cerasus sp. and comprehensively used so that more high-quality seedlings can be produced.

Table 5 Effect of different pruning methods on high-quality seedling rate

High-quality seedling rate (%) Single treatment Triple treatments Control

1/3 pruned away from the plant base 68.3

2/3 reserved at the upper part of the plant 76.9 89.5 56.8

Tip treatment 73.6

5. Effect of comprehensive treatment on high-quality seedlings

During 3 years from the Cerasus sp. rootstock seedling cultivation to the determined under crown height, various measures are adopted in the seedling cultivation process. The statistics are performed on December 1 to obtain the results in Table 6. The first-level seedling rate in the table refers to the percentage of the first-level seedlings counted by the third year, and the measure index is the seedling height; and the high-quality seedling rate refers to the percentage of high-quality seedlings in the statistics of third year, and the measurement indexes are stem types and taperingness of the seedlings. The control is to cultivate seedlings without any management measures.

Table 6 Effect of comprehensive measures on the cultivation of Cerasus sp. seedlings

Quintupletreatments Control

First-level High-quality First-level High-quality seedling rate (%) seedling rate (%) seedling rate(%) seedling rate(%)

Ratio 93.3 87.6 64.6 53.8

As can be seen from the table, the first-level seedling rate of the quintuple treatments (i.e. stratification and sterilization, seedbed fertilization, optimal selecting, root cutting and dense planting, and pruning) is 44.4% higher than that of the control, and the high-quality seedling rate is 62.8% higher than that of the control.

According to the analysis of the whole cultivation process, in addition to a series of management measures such as stratification treatment, sterilization before sowing, fertilization, root cutting, dense planting and pruning are adopted in the cultivation process, the optimal selecting of rootstock seedlings is also very important, which seems to be simple, but actually plays a key role in unifying the size of the rootstock and the growth vigor of each grafted seedling. Therefore, the results show that the first-level seedling rate and high-quality seedling rate both appear high. Therefore, a series of management measures, such as stratification treatment, sterilization before sowing, fertilization, optimal selecting, root cutting, dense planting, pruning and so on, must be adopted in the management process in order to cultivate strong first-level Cerasus sp. grafted seedlings with high quality.

Claims

CLAIMS:

1. A method for cultivating Cerasus sp. grafted seedlings, characterized by comprising the steps of:

(2) optimal selecting and planting with root cutting: selecting a Cerasus serrulata seedling with the ground diameter of above 0.8 cm as a rootstock, cutting off the length of 3/4-1/4 of a main root, and then planting;

(3) grafting and propagation: carrying out grafting in the spring of a second year, and densely planting on the seedbed after the grafting, with the density of -30 plants/m 2 ;

(4) carrying out pruning management to the grafted seedlings, comprising:

reasonably reserving branches: thinning out 1/2-1/4 number of branches of an upper 2/3 part of the tree body, wherein the included angle of adjacent branches is in the range of 90-1200;

tip processing: trimming away double tips of the plant in time, and leaving a robust and straight branch as a main branch; for the phenomenon that the main branch is missing, adjusting and straightening an uppermost branch; and adjusting and straightening the main branch with bent tips; and

2. The method for cultivating Cerasus sp. grafted seedlings according to claim 1, characterized by stratifying and sterilizing the Cerasus serrulata seeds before sowing in the step (1).

3. The method for cultivating Cerasus sp. grafted seedlings according to claim

2, characterized by applying a decomposed organic fertilizer to the seedbed before sowing in the step (1), and directly turning the organic fertilizer into soil during soil preparation, wherein the application amount of the organic fertilizer is 2-4 kg/M 2 . 4. The method for cultivating Cerasus sp. grafted seedlings according to claim 1, characterized by additionally cultivating the selected rootstock in a container in the step (2).

5. The method for cultivating Cerasus sp. grafted seedlings according to claim 1, characterized by adopting a cut-grafting method during the grafting, with a grafting position being 3-8 cm above the ground in the step (3).

6. The method for cultivating Cerasus sp. grafted seedlings according to claim 1, characterized in that the pruning management further comprises pruning over-dense branches, crossed branches, dead branches, parallel branches and diseased branches of the plant in the step (4).

7. The method for cultivating Cerasus sp. grafted seedlings according to claim 1, characterized in that the rootstock of Cerasus sp. is Cerasus serrulata.