Strawberry cutting seedling raising method

Abstract

The invention discloses a novel strawberry cutting seedling raising method, and belongs to the technical field of plant seedling raising. The strawberry cutting seedling raising method comprises the steps of seedling selection, proper-period planting, strong seedling cultivation, cutting, management after cutting and the like, and cutting is conducted by cutting stolons from mother seedlings, cutting off all short piles of the stolons, conducting disinfection treatment and then conducting cutting; meanwhile, during cuttage, the hole tray is transversely placed, one corner, close to the seedling raising hole tray, of the back arch side of each seedling is directly pressed in the matrix and forms a 45-degree included angle with the plane of the matrix, the seedlings are prevented from suddenly falling down and falling out in the upright state, and the cuttage principle is that the rear row or column presses the front row or column. According to the seedling raising method, the emergence rate and the survival rate of strawberry cutting seedling raising are remarkably increased, the cultivated strawberry seedlings are developed in one-time roots, the seedling recovering time is short after transplanting, growth is rapid, and the yield and the quality of strawberries can be remarkably improved. The method is easy to operate and low in cost, the strawberry planting technology is easy to popularize and apply, and development of the strawberry industry is promoted.

Description

Technical Field

[0001] The invention relates to the technical field of plant seedling cultivation, and in particular to a new strawberry cutting seedling cultivation method. Background Art

[0002] At present, strawberry seedlings are mainly propagated by runners, and cutting seedlings are a common method of vegetative propagation of runners. Cutting seedlings have the advantages of uniform seedling age, convenient operation and management, and time and labor saving. However, when pruning the seedlings, traditional cutting seedlings will retain a short stolon. The short stolons are left to prevent wound infection on the one hand, and to fix the strawberry seedlings in the matrix with a fork on the other hand. However, this cutting seedling method has many disadvantages in practical application, such as low seedling rate, seasonal and environmental restrictions, relatively labor-intensive operation, low cutting efficiency, and the retained short stolons are easily affected by various factors to cause blackening, which eventually leads to the death of the seedlings; in addition, the cutting position of the strawberry seedlings in the cutting container is uncertain, some are cut in the middle, and some are cut on one side, which easily causes differences in root development. The quality of the strawberry seedlings is uneven, which cannot meet the market's growing demand for high-quality strawberry seedlings, limiting the development of the strawberry industry. Summary of the invention

[0003] In order to overcome the shortcomings of the prior art, the present invention provides a new strawberry cutting seedling method, which can improve the emergence rate and seedling quality of strawberry seedlings, improve the cutting survival rate, reduce the seedling cost, and provide a large number of high-quality and strong seedlings for strawberry planting. Specifically, the present invention adopts the following technical solutions:

[0004] A strawberry cutting seedling raising method of the present invention comprises the following steps:

[0005] (1) Seedling selection

[0006] Choose low-temperature dormant substrate plug seedlings as the seedlings, preferably virus-free original seedlings, with 3-5 functional leaves, rhizome thickness of more than 0.5 cm, well-developed primary roots, and plants free of diseases and pests; more than 0.5 cm means that the rhizome thickness should be relatively thick, at least 0.5 cm, and about 0.8 cm (0.6-0.9 cm) is preferred. Of course, the rhizome thickness of the plug seedlings themselves will not be very thick.

[0007] (2) Planting at the right time

[0008] The planting time is advanced, in the southern region, planting is in January-February, and in the northern region, planting is in November-February; the lowest temperature before warming management after planting should not be lower than minus 5℃, and warming management should be carried out in February-March;

[0009] (3) Cultivating strong seedlings

[0010] Through fertilizer and water management and pest and disease control, we can cultivate strong seedlings, promote early emergence of mother seedlings, produce more runners, and produce thick runners;

[0011] (4) Cutting

[0012] At the end of June and the beginning of July, cut the runners from the mother seedlings and repair the seedlings. When repairing, cut the runners directly from the position close to the shortened stems of the seedlings, and then disinfect them with disinfectant. The disinfectant uses a compound agent of Liangdun + Chunlei quinoline copper + Abamectazole to prevent and control a variety of diseases and insect pests. After soaking for 1-5 minutes, take them out and drain the liquid, and then cut them; choose plug trays or nutrient pots for cuttings, fill the matrix in advance and press it tightly, which is conducive to the fixation of the seedlings. Moisten the matrix in advance before cutting; when cutting, place the plug tray horizontally, and the seedlings are directly pressed into the matrix with the back arch side against one corner of the seedling tray, forming an angle of 40-50° with the plane of the matrix to prevent them from falling down suddenly in an upright state. The principle of cutting is that the back row or column presses the front row or column;

[0013] (5) Management after cutting

[0014] After the seedlings are cut, keep the air moist, spray water regularly, and shade appropriately. The daytime temperature should not exceed 25℃, and the air humidity should be maintained at 70-90%. Gradually expose the seedlings to light one week after the cuttings. After the roots have taken root, the substrate humidity should be maintained at 60-70%, and the greenhouse should be kept ventilated and light-permeable. The maximum daytime temperature should not exceed 28℃, and the air humidity should be 50-70%.

[0015] (6) Controlling the growth of the plants before leaving the field

[0016] Use growth-control agents to slow down the growth rate, thicken the leaves, and grade the seedlings for transplanting.

[0017] Step (1) The seedlings are selected from matrix plug tray seedlings that have been fully dormant at low temperatures, preferably virus-free original seedlings, such as overwintering plug tray original seedlings or overwintering plug tray seedlings. After planting, they have strong stress resistance, early germination, and a large number of seedlings. Traditional seedling cultivation does not clearly stipulate the use of original seedlings for seedling selection, nor does it require the use of plug tray seedlings in terms of species, nor does it specify the number of leaves that must be used in terms of specifications. Virus-free original seedlings are generally matrix plug tray seedlings. After the seedlings are virus-free, they have a large number of seedlings, grow strong, and the matrix seedlings have a fast germination rate.

[0018] Step (2) When planting at the right time, if you want more seedlings to emerge from cuttings, you must plant the seedlings in advance. The southern region is generally planted in January and February, and the northern region is planted in November and February. The earliest planting cannot be earlier than November to avoid flowering and consuming its own nutrients. The lowest temperature after planting cannot be lower than minus 5°C. The daytime temperature should not be higher than 15°C, preferably 10-13°C. It is best to keep it between 0-5°C at night, which can not only store cold at low temperatures, but also take root and strengthen seedlings. Wait until February to March to raise the temperature. The daytime temperature is about 25°C (23-26°C) and the night temperature is about 15°C (14-16°C). When planting, the planting method is determined according to the state of root development. If the roots are too heavy, it is recommended to shake the substrate for planting to facilitate rapid growth in the later stage. The traditional seedling planting period is generally February to March in the south and March to April in the north. This application requires planting in advance. At the same time, after transplanting, when the mother plant grows 2 new leaves and 1 heart, remove the old and damaged leaves to always maintain 4-5 leaves and 1 heart to promote the growth of runners. Traditional seedling raising methods do not require such treatment.

[0019] In step (3), when cultivating strong seedlings, after the seedlings are planted, scientific fertilizer and water management and pest and disease control are used to cultivate strong seedlings, promote the early emergence of mother seedlings, produce more runners, and produce thick runners, laying a good foundation for later cutting seedling cultivation. Here, the traditional seedling cultivation method can be used, and rooting fertilizer and high nitrogen fertilizer can be applied in the early stage of planting, balanced fertilizer can be applied in the middle stage, and silicon calcium fertilizer can be applied in the later stage. The diseases to be controlled include anthracnose, angular leaf spot, blight, and powdery mildew, and the pests to be controlled include two-spotted spider mites, aphids, and caterpillars.

[0020] Step (4) When repairing the seedlings by cutting, the runners need to be cut directly from the position close to the shortened stems of the seedlings, leaving no short stumps, that is, all the short stumps of the runners must be removed, while the traditional seedling cultivation retains the short stumps of about 5 cm. After disinfection with disinfectant, the disinfectant is Liangdun + Spring Thunder Quinoline Copper + Abamectazole. After soaking for 3 minutes, remove and drain the liquid, and then cut. Traditional seedling disinfection methods generally only use fungicides, while the present application adds additional miticides to better prevent and control a variety of diseases and pests. At the same time, because no short stumps are left, the residual surface left after cutting can be better protected to prevent contamination of bacteria from affecting growth.

[0021] In addition, it is better to choose a 32-hole plug tray for cutting. The matrix should be filled into the plug tray in advance and pressed tightly, which is conducive to the fixation of the seedlings. The matrix should be moistened in advance before cutting. When cutting, the plug tray is placed horizontally, and the back arch side of the seedling is directly pressed into the matrix against a corner of the seedling plug tray, forming a 45° angle with the plane of the matrix to prevent it from suddenly falling down in an upright state. The order of cutting is from left to right, from top to bottom, one row is pressed against a row or one column is pressed against a column. The general principle is that the rear row (column) presses the front row (column). The traditional seedling cutting order does not have such a requirement. At the same time, when the seedlings described in this application are cut, the back arch side must be close to a corner of the plug tray, which is conducive to primary root germination and avoids packing. The weight composition of the main components of the substrate is peat: vermiculite: perlite = 2-4:1:1, preferably 3:1:1. At the same time, some commonly used substrate insecticides, anti-root rot agents, etc. can also be added. In addition, in step (4), the daytime temperature before cutting is maintained at no more than 30°C, preferably 25-28°C, the substrate humidity is maintained at 60%-70%, and the air humidity is maintained at about 50-70%.

[0022] Step (5) Management after cutting: After the seedlings are cut, in order to maintain air humidity, the seedbed can be covered with non-woven fabric to keep it moist.

[0023] As a fruit with high economic value, the reproductive efficiency and quality of strawberry seedlings are crucial to the development of the strawberry industry. Different planting times and cutting methods may affect the emergence rate and survival rate of strawberry seedlings.

[0024] The beneficial effects of the present invention are:

[0025] 1. The seedling raising method of the present invention can significantly improve the emergence rate and cutting survival rate of strawberry cutting seedlings. At the same time, the seedling raising method of the present invention does not retain the short stolons, which can effectively reduce the dead seedlings caused by the blackening of the short stolons.

[0026] 2. The strawberry seedlings cultivated by the method of the present invention have well-developed primary roots, a short seedling acclimatization time after transplanting, and rapid growth, which can significantly improve the yield and quality of strawberries.

[0027] 3. The seedling raising method of the present invention is simple to operate, low in cost, and easy to popularize and apply strawberry planting technology, which is helpful to promote the development of the strawberry industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the runner and short pile structure, with the short pile inside the box.

[0029] Figure 2 This is a schematic diagram of the short stumps of the running stems being cut off, and the box shows the location of the short stumps after being cut off.

[0030] Figure 3 This is a schematic diagram of the dorsal arch structure of the seedling. The box on the left is the dorsal arch side.

[0031] Figure 4 This is a diagram of the position of the dorsal arch side against a corner of the hole tray when the seedlings are cut.

[0032] Figure 5 This is a schematic diagram of the seedlings being at a 45° angle to the substrate plane when being cut. DETAILED DESCRIPTION

[0033] The following embodiments are further descriptions of the content of the present invention as an explanation of the technical content of the present invention, but the essential content of the present invention is not limited to the following embodiments. Ordinary technicians in this field can and should know that any simple changes or replacements based on the essential spirit of the present invention should fall within the scope of protection required by the present invention.

[0034] Example 1

[0035] A strawberry cutting seedling raising method is as follows:

[0036] 1. Seedling raising equipment

[0037] The mother seedling planting equipment can be gallon pots, foam boxes, square pots or cultivation troughs. They must be breathable and water-permeable to prevent root rot. The seedling equipment uses 32-hole plug trays or 40-hole nutrient pots. The hole diameter of the gallon pot should be more than 18 cm, and the width of the foam box, square pot, and cultivation trough should be more than 15 cm. The mother seedlings can be planted in the seedbed or on a high shelf.

[0038] 2. Seedling cultivation method

[0039] The use of the insertion method can reduce the occurrence of diseases.

[0040] 3. Matrix ratio

[0041] Peat: vermiculite: perlite = 3:1:1.

[0042] The peat in the substrate must be fully decomposed and free of weed seeds and pathogenic bacteria. Pesticides and anti-root rot agents are generally added to the substrate.

[0043] 4. Matrix mixing

[0044] Before potting (trough), the matrix insecticide and anti-root rot agent (fungicide) need to be mixed evenly. When mixing, spray appropriate water to facilitate potting and watering later. The insecticide is bifenthianidin granules, and the anti-root rot agent is azoxystrobin, oxadiazine, etc.

[0045] 5. Matrix potting (trough)

[0046] Put the mixed substrate into the gallon pot (trough), and the substrate should be enough to fill the entire pot. Then place it in the seedbed. Place the cultivation trough in the seedbed in advance and then fill it with the substrate. The substrate of the seedling equipment should be filled before cutting. After filling, it should be slightly firm to prevent the water from losing too quickly in the later stage. After filling, place it in the cutting bed.

[0047] 6. Install drip irrigation tape

[0048] After the seedling pots are placed, install the drip irrigation tape with a spacing of 10 cm between the leakage holes.

[0049] 7. Selection of mother seedlings (seedlings)

[0050] For mother seedlings, it is advisable to choose overwintering plug tray seedlings or overwintering plug tray seedlings, especially original seedlings. It is not recommended to use old seedlings (slow germination) for fruit production. Plug tray seedlings grow quickly and produce runners early. Whether it is original seed or seedling, it must have 3-5 functional leaves, the root and stem thickness is about 0.8 cm, the minimum is not less than 0.6 cm (the original seed is not less than 0.5 cm), the root system is well-developed, white or slightly yellow, without root and stem diseases, and strong and not leggy.

[0051] 8. Planting time of mother seedlings

[0052] For production seedling breeding, the mother seedlings are transplanted into the seedling pots in the greenhouse from mid-November to mid-February. Early transplanting and early germination can prevent the occurrence of diseases during high temperature periods, especially anthrax and bacterial angular leaf spot, which are highly contagious and cause serious harm.

[0053] 9. Watering the substrate before planting

[0054] Before planting, water the substrate thoroughly once in advance.

[0055] 10. Planting

[0056] The mother seedlings should be graded and planted in different areas according to their size. It is not recommended to remove old leaves or dip the roots of the mother seedlings.

[0057] Planting density: plant one tree in one gallon pot, with a spacing of 20-25 cm between plants in cultivation troughs, and a width of about 15 cm for single row planting and about 18 cm for double row planting.

[0058] The direction of the runners' growth is consistent with the arch, so when planting, the arch side should face the direction of the runners' traction.

[0059] Planting requires that the mother seedling is located in the middle of the planting container. First, remove the substrate at the root of the strawberry to expose the core, pinch off the substrate and root system at the bottom of the substrate, and if the root is too entangled, remove the substrate completely before planting to help the seedlings to grow. When planting, it is required that the core is not buried deep and the roots are not exposed shallowly, which is conducive to the germination of the first root, shortening the seedling growth period and promoting plant growth.

[0060] After transplanting, the minimum temperature cannot be lower than minus 5℃, the daytime temperature should not be higher than 15℃, and it is best to keep it between 0-5℃ at night. This can not only store cold air at low temperatures, but also allow rooting and strong seedlings. Wait until February to March to increase the temperature. The daytime temperature should be around 25℃ (24-26℃), and the nighttime temperature should be around 15℃ (14-16℃).

[0061] 11. Watering

[0062] After planting, water thoroughly once immediately to help the seedlings take root.

[0063] 12. Root irrigation to promote root growth

[0064] The first root irrigation is carried out on the 5th day after planting, and the second root irrigation is carried out around 15 days after planting.

[0065] Root irrigation agents mainly include higher fungal agents + disease agents, the formula is 1000 times of Liangdun + 1000 times of Chunlei Quinoline Copper, and the roots are irrigated in circles. The first root irrigation is 100ml per plant, and the second root irrigation is 150ml per plant.

[0066] 13. Break leaves

[0067] When the mother plant grows 2 new leaves and 1 heart, remove the old and residual leaves. Choose a time when there are several consecutive sunny days. Spray pesticides or irrigate the roots immediately after removing the leaves. After that, remove the leaves once a month, and always keep 4-5 leaves and 1 heart to promote the growth of runners. When the seedlings have too many leaves, remove the leaves, leaving 3 leaves and 1 heart.

[0068] 14. Fertilizer and water management

[0069] Within one month of planting the mother strawberry seedlings, the main focus is on slowing down the seedlings and promoting rooting. Half a month after the temperature rises, a large amount of element fertilizers will be applied. In the early stage of seedling cultivation, high nitrogen fertilizers will be used as the main fertilizer. Rooting fertilizers will be applied 1-2 times within one month of planting. Balanced fertilizers will be used as the main fertilizer in the middle stage. In the later stage, a large amount of element fertilizers will no longer be used, but silicon calcium products will be used as the main fertilizer to enhance the disease resistance of the plants. Water-soluble fertilizers should be applied every 2-3 days, and the EC value should be controlled at 0.8-1.0. The seedlings do not need bottom fertilization, only foliar fertilizers need to be sprayed. When the temperature is higher than 25℃, water in the evening; when the temperature is lower than 20-25℃, water at 3-5 o'clock; when the temperature is 15-20℃, water at noon; when the temperature is 10-15℃, water before noon; when the temperature is below 10℃, water before 10 o'clock. The lower the temperature, the earlier the watering time should be, and the water temperature should be kept consistent with the substrate temperature.

[0070] 15. Runner Management

[0071] All the runners that emerge in the early stage of transplanting should be pinched off. The runners can only be retained after the plants grow strong and the original species have more than 5 functional leaves and the seedlings have more than 4 functional leaves.

[0072] 16. Cuttings

[0073] Cuttings start in late June and continue until early July. Before cuttings, place the plug tray or nutrient pot, trim the seedlings, and cut off the runners of each seedling directly from the shortened stem position, leaving no short stumps (such as Figure 2 ). Remove the smallest scale leaves, and retain up to 3 leaves and 1 heart. Soak the repaired seedlings in the solution for sterilization (62.5g / L Liangdun 2000 times + 36% Spring Thunder Quinoline Copper 2000 times + 20% Abamectin 2000 times) for 5 minutes, then remove and drain for cuttings. When cutting, it is best if the root suckers are just embedded in the substrate, and the cuttings should not be too deep to bury the heart. The main cutting instruments are 32-hole plug trays or 40-hole nutrient pots. When cutting, pay attention to the seedling heart being located at one corner of the center of the plug tray or nutrient pot, which is conducive to the germination and growth of the primary root. When cutting, place the plug tray horizontally, with the seedling back arched (such as Figure 3 ) Press the corner of the seedling tray directly into the substrate (such as Figure 4 ), the seedling body is 45° to the substrate plane (such as Figure 5 ), to avoid lodging.

[0074] 17. Pest and disease control

[0075] Main diseases: anthracnose, bacterial angular leaf spot, leaf spot.

[0076] Main pests: aphids, thrips, red spiders, and lepidopteran pests.

[0077] For control agents, please refer to the strawberry common disease and pest control calendar.

[0078] 18. Temperature and humidity management

[0079] Before cutting, the daytime temperature should be kept below 30℃, the substrate humidity should be kept at 60%-70%, and the air humidity should be kept at around 60%. After cutting, low temperature, high humidity and shading treatment are required in the early stage. The daytime temperature should be below 25℃, and the air humidity should be kept at around 80%. Build an arch shed, cover with plastic film and shade net in the first week, and spray water 1-2 times a day. After a week, remove the shade net. Within a week, gradually uncover the plastic film from small to large, and gradually extend the uncovering time until it is completely uncovered. One week after cutting, start spraying pesticides to prevent diseases, once every 7 days. After rooting and survival, the substrate humidity is kept at 60-70%, the shed is kept ventilated and light-permeable, and the highest temperature during the day does not exceed 28℃. The air humidity is around 60%.

[0080] 19. Control the prosperity

[0081] Principles of growth control: light control in the early stage of seedling raising, medium control in the middle stage, and heavy control in the late stage. Growth control agents include Nadiwin, Tebuconazole, Chlormequat, Triadimefon, PBO, Prohexadione-Calcium, Diniconazole, etc. Paclobutrazol is not recommended. Use the ones you are used to. Don't follow the crowd. Safety and effectiveness are the main focus. The purpose of growth control is to slow down the growth rate, but it does not affect the number of seedlings, thicken the leaves, make the plants thicker, and increase the resistance of plants.

[0082] 20. Seedling management

[0083] Before transplanting, the seedlings are graded.

[0084] 21. Management of mother and seedlings

[0085] After cutting, take the mother seedlings and the substrate out of the greenhouse area. Then keep the greenhouse in high temperature for more than 30 days.

[0086] 22. Strawberry seedlings planting and transportation

[0087] Starting from late August, when most of the runner seedlings meet the production seedling standards, they can be planted out according to production needs. Production seedling standards: more than 4 unfolded leaves, bright green leaves, strong petioles but not too long, rhizomes more than 0.8 cm thick, well-developed root system, many thick and white fibrous roots, free of diseases and insect pests.

[0088] Place the strawberry seedlings neatly in the packaging box and pre-cool them in the cold storage for more than 12 hours. Then add frozen water bottles or ice bags to the strawberry seedlings and pack them in cartons or foam boxes. Then load them into low-temperature refrigerated trucks for transportation or air transportation.

[0089] Example 2

[0090] Experiment on the effects of different strawberry planting times and cutting methods on the number of seedlings and cutting survival rate.

[0091] 1. Test materials

[0092] Healthy seedlings of three strawberry varieties: Hongyan, Zhangji, and Xiangye.

[0093] 2. Test location

[0094] Xining City, Qinghai Province.

[0095] 3. Test methods

[0096] The seedlings of the three varieties were planted on the seedling raising racks on February 15 and March 30, 2024, respectively. 50 seedlings of each variety were planted at each time point, and they were managed according to the normal management method. The runners were cut on June 30 for cuttings, and the seedlings of different varieties at different planting times were counted before cuttings. 1,000 seedlings of each variety were selected, and 500 seedlings were cut by ordinary cuttings and cuttings without short stakes (the present invention), and the survival rate was counted in late August.

[0097] 4. Experimental results

[0098] Table 1 Effect of different planting times on the number of seedlings

[0099]

[0100] As shown in Table 1, the three varieties showed the highest number of seedlings when planted on February 15. As the planting time was delayed, the number of seedlings decreased significantly. Early planting of Hongyan could increase the emergence rate by 23%, Zhangji early planting could increase the emergence rate by 20%, and Xiangye early planting could increase the emergence rate by 26.7%. When planted early (February 15), the strawberry growth period was extended, the temperature was low in the early stage, which was conducive to the growth of the root system, the shortened stems and the thickening. The climate and environment were suitable in the middle stage, and the plants grew rapidly, so the number of seedlings was high. As the time was delayed, the growth period was shortened, resulting in a decrease in the emergence rate. Therefore, the planting time had a significant effect on the emergence rate of strawberry seedlings, and planting around February 15 was the best.

[0101] Table 2 Effects of different cutting methods on cutting survival rate

[0102]

[0103] As can be seen from Table 2, the survival rate of the cuttings with short pile removal is higher than that of the ordinary cuttings, and both are higher than 95%. The cuttings with short pile removal directly remove the short piles that are susceptible to diseases, which reduces the probability of disease occurrence and improves the survival rate of cuttings. Therefore, the cutting method with short pile removal is superior to ordinary cuttings in improving the survival rate of cuttings.

[0104] Comprehensive experiments have found that different planting times and cutting methods have a great influence on the strawberry germination rate and survival rate, and the seedling raising method of the present invention can achieve efficient breeding of strawberry seedlings.

[0105] It should be noted that the above-mentioned technical contents of the present invention are only for explanation and clarification to enable those skilled in the art to understand the technical essence of the present invention, so the technical contents are not used to limit the substantial protection scope of the present invention. The substantial protection scope of the present invention shall be subject to the claims. Those skilled in the art should know that any modification, equivalent substitution and improvement based on the substantial spirit of the present invention shall be within the substantial protection scope of the present invention.

Claims

1. A strawberry cutting seedling raising method, comprising the following steps: (1) Seedling selection The seedlings should be low-temperature dormant substrate plug seedlings with 3-5 functional leaves, a rhizome thickness of more than 0.5 cm, well-developed primary roots, and free of diseases and insect pests. (2) Planting at the right time Planting in January-February in the southern region or November-February in the northern region; the lowest temperature before warming up after planting should not be lower than minus 5℃, and warming up should be done in February-March; (3) Cultivating strong seedlings Through fertilizer and water management and pest and disease control, we can cultivate strong seedlings, promote early emergence of mother seedlings, produce more runners, and produce thick runners; (4) Cutting At the end of June and the beginning of July, cut the runners from the mother seedlings and trim the seedling heads. When trimming, cut the runners directly from the position close to the shortened stems of the seedlings, then soak them in disinfectants for 1-5 minutes, remove them and drain them, and then cut them for cuttings; choose plug trays or nutrient pots for cuttings, and moisten the substrate in advance; when cutting, place the plug tray horizontally, and press the back arch side of the seedling close to the corner of the seedling plug tray directly into the substrate, and form an angle of 40-50° with the substrate plane; (5) Management after cutting After the seedlings are cut, keep the air moist, spray water regularly, and shade appropriately. The daytime temperature should not exceed 25℃, and the air humidity should be maintained at 70-90%. Gradually expose the seedlings to light one week after the cuttings. After the roots have taken root, the substrate humidity should be maintained at 60-70%, and the greenhouse should be kept ventilated and light-permeable. The maximum daytime temperature should not exceed 28℃, and the air humidity should be 50-70%. (6) Controlling the growth of the plants before leaving the field Use growth-control agents to slow down the growth rate, thicken the leaves, and grade the seedlings for transplanting.

2. The strawberry cutting seedling raising method according to claim 1, wherein: The seedlings in step (1) are subjected to sufficient low-temperature dormancy.

3. The strawberry cutting seedling raising method according to claim 1, wherein: Step (2) After planting, the temperature should not be higher than 15°C during the day and between 0-5°C at night.

4. The strawberry cutting seedling raising method according to claim 1, wherein: Step (2) After transplanting, when the mother plant grows 2 new leaves and 1 heart, remove the old and damaged leaves and always maintain 4-5 leaves and 1 heart to promote the growth of runners.

5. The strawberry cutting seedling raising method according to claim 1, wherein: The fertilizer and water management in step (3) is to apply rooting fertilizer and high nitrogen fertilizer in the early stage of planting, apply balanced fertilizer in the middle stage, and apply silicon calcium fertilizer in the late stage.

6. The strawberry cutting seedling raising method according to claim 1, wherein: The disinfectant in step (4) is a composite agent of Liangdun + Chunlei quinoline copper + Abamectin.

7. The strawberry cutting seedling raising method according to claim 1, wherein: The matrix in step (4) mainly includes peat, vermiculite and perlite, and its weight composition is peat: vermiculite: perlite = 2-4:1:

1.

8. The strawberry cutting seedling raising method according to claim 7, characterized in that: The matrix also includes matrix insecticide and anti-root rot agent.

9. The strawberry cutting seedling raising method according to claim 1, wherein: Step (4) The principle of the order of cuttings is that the last row or column presses the previous row or column.

10. The strawberry cutting seedling raising method according to claim 1, characterized in that: Step (4) Before cutting, the daytime temperature is maintained at no more than 30°C, the substrate humidity is maintained at 60%-70%, and the air humidity is maintained at 50-70%.

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