A method for raising seedlings of sand-growing plants

Abstract

The invention provides a sand-dwelling plant seedling raising method, comprising the following steps: S1, selecting a seedling raising site; S2, making a seedling raising bed: the seedling raising bed comprises a plurality of arched seedling beds, the arched seedling beds are formed by piling soil and are arranged on the ground; a working path is left between two adjacent arched seedlings; the highest point of the arch in the middle of the arched seedling bed is 0.08-0.1m higher than the working path and forms a smooth arch; the working path forms a longitudinal slope of 0.3%, and the lower end is connected with a drainage channel; S3, laying a weeding cloth; S4, making a seedling raising trough frame; S5, making a seedling raising matrix: sprinkling sand, coal gangue powder, mudstone powder, and dead branch and leaf powder with water until dust does not arise, and stirring evenly to obtain a seedling raising matrix; S6, potting; S7, raising seedlings: transplanting sand-dwelling plants into seedling raising pots or planting sand-dwelling plant seeds into seedling raising pots, watering, and maintaining; the invention improves the soil ball integrity rate and the seedling survival rate by arranging the arched seedling bed and preparing the seedling raising matrix.

Description

Technical Field

[0001] The invention relates to the technical field of seedling cultivation, in particular to a method for cultivating seedlings of sand-dwelling plants. Background Art

[0002] Desert plants refer to plants that live in sandy soil habitats with sand as the matrix. Desert plants play an important role in desertification control and ecological restoration. Most desert plants have well-developed taproot systems and underdeveloped fibrous roots. When desert plants are cultivated in containers, when the well-developed taproots penetrate the container and enter the soil, they can only be cut off with a shovel during transplanting because the roots are too long. This greatly reduces the survival rate of transplanting.

[0003] On the other hand, in desert areas, sand is mostly used for seedling cultivation, but sand has poor cohesion. When sand is used to fill nutrient pots for seedling cultivation and transplanting, the soil ball is easy to break after being removed from the pot, and the soil ball of the nutrient pot seedlings is also easy to break during transportation, which reduces the survival rate of transplanted seedlings. In the prior art, people usually add clay to sand to improve its cohesion. However, digging clay in the desert is costly and will destroy the original vegetation. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a method for raising seedlings of desert plants, which solves the disadvantage that the roots of container seedlings are buried in the ground, greatly improves the success rate of raising seedlings of desert plants and the survival rate of transplanting, and specifically comprises the following steps:

[0005] S1. Selecting a nursery site: Select land with good wind leeward and drainage conditions as the nursery site;

[0006] S2. Making a nursery bed: the nursery bed comprises a plurality of arched nursery beds, the arched nursery beds are made of soil and are arranged on the ground; a working path is left between two adjacent arched nursery beds;

[0007] The highest point of the arch in the middle of the arched seedbed is 0.08-0.1m higher than the working path and forms a smooth arch;

[0008] S3. Laying weed cloth: Lay weed cloth on the arched seedbed and fix it;

[0009] S4, making a seedling trough frame: the seedling trough frame is a bracket, the bracket is arranged around the arched seedling bed and fixed to the ground, a drainage channel is arranged at the outer edge of one side of the bracket; the working channel forms a longitudinal slope of 0.3%, and the lower end is connected to the drainage channel;

[0010] The seedling trough frame is made of waste materials such as packing box slats or poles removed from greening trees;

[0011] S5. Preparation of seedling medium: The seedling medium is made of sand, coal gangue powder, mudstone powder, and dead branches and leaves powder. Sand, coal gangue powder, mudstone powder, and dead branches and leaves powder are sprinkled with water until no dust is generated, and stirred evenly to obtain the seedling medium;

[0012] S6, potting: the seedling substrate obtained in step S5 is placed in the seedling pot, and neatly placed on the arched seedling bed in the seedling trough frame; because it is arched, the nutrient pots placed on it need to be placed in the seedling trough frame to prevent the nutrient pots with the substrate placed on it from tipping over;

[0013] S7. Seedling raising: Transplant the sand-tolerant plants into the seedling raising pots or plant the seeds of sand-tolerant plants into the seedling raising pots, water them and maintain them.

[0014] Moreover, the width of the arched seedbed is 1.1-1.3m.

[0015] Moreover, the width of the working channel is 0.3-0.4m.

[0016] Moreover, the width of the drainage channel is 0.3-0.4m.

[0017] Moreover, the method of laying the weed cloth in S3 is: laying the weed cloth longitudinally on the arched seedbed, with the upper side pressing the lower side, the upper side being on the upwind side, and the joint seams being on the leeward side.

[0018] Moreover, in step S5, the seedling medium is mixed in a volume ratio of sand: coal gangue powder: mudstone powder: dead branches and leaves powder = 1-2: 0.5-1.5: 1-2: 0.3-0.6.

[0019] Moreover, in step S5, the volume ratio of the seedling medium is sand: coal gangue powder: mudstone powder: dead branches and leaves powder = 1.5:1:1.5:0.45.

[0020] Moreover, in step S5, the seedling medium is mixed in a volume ratio of sand: coal gangue powder: mudstone powder: dead branches and leaves powder = 1:0.5:1:0.3.

[0021] Moreover, in step S5, the seedling medium is mixed in a volume ratio of sand: coal gangue powder: mudstone powder: dead branches and leaves powder = 2:1.5:2:0.6.

[0022] Moreover, when filling the pot in step S6, after the seedling-raising matrix is ​​filled into the seedling-raising pot, the seedling-raising matrix is ​​filled to a distance of 0.2-0.3 cm from the pot mouth.

[0023] Moreover, the sand-dwelling plant is Ammopiptanthus mongolicus or Caragana spp.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The present invention lays a weed cloth on the arched seedling bed. After the plants grow roots, there is soil and moisture in the seedling pot, while the weed cloth laid under the seedling pot does not contain moisture and other nutrients. The plant roots will grow in the seedling pot due to their instinct to move towards soil and water, thereby avoiding the disadvantage that the roots of sand-dwelling seedlings enter the soil before being planted and can only be cut off with a shovel during transplanting due to excessive roots, thereby reducing the survival rate of transplanting. At the same time, it can also extend the time of the seedlings in the nursery, improve the growth of sand-dwelling plants before transplanting, and further improve the survival rate of sand-dwelling plants after transplanting.

[0026] 2. The arched seedbed provided in the present invention avoids water accumulation at the roots and salinization of the soil ball due to the arched seedbed, thereby improving the survival rate of the seedlings of sand-tolerant plants.

[0027] 3. The present invention prepares the seedling medium by mixing sand: coal gangue powder: mudstone powder: dead branch and leaf powder in a volume ratio of 1-2: 0.5-1.5: 1-2: 0.3-0.6, thereby improving the nutrition of the seedling medium and the firmness of the soil ball, using the abundant mudstone and coal gangue in the desert to replace clay, thereby utilizing the waste and solving the problem that the soil ball for seedling cultivation in a sand-filled pot is fragile. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of a seedling bed in which seedling pots are neatly placed in a seedling trough frame according to the present invention;

[0029] Figure 2 It is a schematic diagram of a seedling raising pot and a seedling raising bed of the present invention without a seedling raising pot.

[0030] In the figure, 1-arched seedbed; 2-support; 3-working channel; 4-drainage channel. DETAILED DESCRIPTION

[0031] Example 1

[0032] like Figure 1 , 2 As shown, a method for raising seedlings of sand-dwelling plants comprises the following steps:

[0033] S1. Selecting a nursery site: Select land with good wind leeward and drainage conditions as the nursery site;

[0034] S2. Making a nursery bed: The nursery bed comprises a plurality of arched nursery beds 1, each of which is made of soil and arranged on the ground; a working path 3 is left between two adjacent arched nursery beds 1;

[0035] The highest point of the arch in the middle of the arched seedbed 1 is 0.08-0.1m higher than the working path 3 and forms a smooth arch;

[0036] S3, laying weed cloth: laying weed cloth on the arched seedbed 1 and fixing it;

[0037] S4, making a seedling trough frame: the seedling trough frame is a bracket 2, the bracket 2 is arranged around the arched seedbed 1 and fixed to the ground, a drainage channel 4 is arranged at the outer edge of one side of the bracket 2; the working channel 3 forms a longitudinal slope of 0.3%, and the lower end is connected to the drainage channel 4;

[0038] S5. Preparation of seedling medium: The seedling medium is made of sand, coal gangue powder, mudstone powder, and dead branches and leaves powder. Sand, coal gangue powder, mudstone powder, and dead branches and leaves powder are sprinkled with water until no dust is generated, and stirred evenly to obtain the seedling medium;

[0039] S6, potting: the seedling medium obtained in step S5 is placed into the seedling pots, and neatly placed on the arched seedbed 1 in the seedling trough frame;

[0040] S7. Seedling raising: Transplant the sand-tolerant plants into the seedling raising pots or plant the seeds of sand-tolerant plants into the seedling raising pots, water them and maintain them.

[0041] Furthermore, the width of the arched seedbed 1 is 1.1 m.

[0042] Furthermore, the width of the working channel 3 is 0.3 m.

[0043] Furthermore, the width of the drainage channel 4 is 0.3 m.

[0044] Furthermore, the method of laying the weed cloth in S3 is: laying the weed cloth longitudinally on the arched seedbed 1, with the upper side pressing the lower side, the upper side being on the upwind side, and the joint seam being on the leeward side.

[0045] Furthermore, in step S5, the seedling medium is mixed in a volume ratio of sand: coal gangue powder: mudstone powder: dead branches and leaves powder = 1:0.5:1:0.3.

[0046] Furthermore, during the step S6 of filling the pots, after the seedling-raising matrix is ​​filled into the seedling-raising pots, the seedling-raising matrix is ​​filled to a distance of 0.2 cm from the pot mouth.

[0047] Furthermore, the sand-dwelling plant is Ammopiptanthus mongolicus.

[0048] Example 2

[0049] like Figure 1 , 2 As shown, a method for raising seedlings of sand-dwelling plants comprises the following steps:

[0050] S1. Selecting a nursery site: Select land with good wind leeward and drainage conditions as the nursery site;

[0051] S2. Making a nursery bed: The nursery bed comprises a plurality of arched nursery beds 1, each of which is made of soil and arranged on the ground; a working path 3 is left between two adjacent arched nursery beds 1;

[0052] The highest point of the arch in the middle of the arched seedbed 1 is 0.08-0.1m higher than the working path 3 and forms a smooth arch;

[0053] S3, laying weed cloth: laying weed cloth on the arched seedbed 1 and fixing it;

[0054] S4, making a seedling trough frame: the seedling trough frame is a bracket 2, the bracket 2 is arranged around the arched seedbed 1 and fixed to the ground, a drainage channel 4 is arranged at the outer edge of one side of the bracket 2; the working channel 3 forms a longitudinal slope of 0.3%, and the lower end is connected to the drainage channel 4;

[0055] S5. Preparation of seedling medium: The seedling medium is made of sand, coal gangue powder, mudstone powder, and dead branches and leaves powder. Sand, coal gangue powder, mudstone powder, and dead branches and leaves powder are sprinkled with water until no dust is generated, and stirred evenly to obtain the seedling medium;

[0056] S6, potting: the seedling medium obtained in step S5 is placed into the seedling pots, and neatly placed on the arched seedbed 1 in the seedling trough frame;

[0057] S7. Seedling raising: Transplant the sand-tolerant plants into the seedling raising pots or plant the seeds of sand-tolerant plants into the seedling raising pots, water them and maintain them.

[0058] Furthermore, the width of the arched seedbed 1 is 1.3 m.

[0059] Furthermore, the width of the working channel 3 is 0.4 m.

[0060] Furthermore, the width of the drainage channel 4 is 0.4 m.

[0061] Furthermore, the method of laying the weed cloth in S3 is: laying the weed cloth longitudinally on the arched seedbed 1, with the upper side pressing the lower side, the upper side being on the upwind side, and the joint seam being on the leeward side.

[0062] Furthermore, in step S5, the seedling medium is mixed in a volume ratio of sand: coal gangue powder: mudstone powder: dead branches and leaves powder = 2:1.5:2:0.6.

[0063] Furthermore, during the step S6 of filling the pots, after the seedling-raising matrix is ​​filled into the seedling-raising pots, the seedling-raising matrix is ​​filled to a distance of 0.3 cm from the pot mouth.

[0064] Furthermore, the desert plant is Caragana.

[0065] Example 3

[0066] like Figure 1 , 2 A method for raising seedlings of sand-dwelling plants comprises the following steps:

[0067] S1. Selecting a nursery site: Select land with good wind leeward and drainage conditions as the nursery site;

[0068] S2. Making a nursery bed: The nursery bed comprises a plurality of arched nursery beds 1, each of which is made of soil and arranged on the ground; a working path 3 is left between two adjacent arched nursery beds 1;

[0069] The highest point of the arch in the middle of the arched seedbed 1 is 0.08-0.1m higher than the working path 3 and forms a smooth arch;

[0070] S3, laying weed cloth: laying weed cloth on the arched seedbed 1 and fixing it;

[0071] S4, making a seedling trough frame: the seedling trough frame is a bracket 2, the bracket 2 is arranged around the arched seedbed 1 and fixed to the ground, a drainage channel 4 is arranged at the outer edge of one side of the bracket 2; the working channel 3 forms a longitudinal slope of 0.3%, and the lower end is connected to the drainage channel 4;

[0072] S5. Preparation of seedling medium: The seedling medium is made of sand, coal gangue powder, mudstone powder, and dead branches and leaves powder. Sand, coal gangue powder, mudstone powder, and dead branches and leaves powder are sprinkled with water until no dust is generated, and stirred evenly to obtain the seedling medium;

[0073] S6, potting: the seedling medium obtained in step S5 is placed into the seedling pots, and neatly placed on the arched seedbed 1 in the seedling trough frame;

[0074] S7. Seedling raising: Transplant the sand-tolerant plants into the seedling raising pots or plant the seeds of sand-tolerant plants into the seedling raising pots, water them and maintain them.

[0075] Furthermore, the width of the arched seedbed 1 is 1.2 m.

[0076] Furthermore, the width of the working channel 3 is 0.35 m.

[0077] Furthermore, the width of the drainage channel 4 is 0.35 m.

[0078] Furthermore, the method of laying the weed cloth in S3 is: laying the weed cloth longitudinally on the arched seedbed 1, with the upper side pressing the lower side, the upper side being on the upwind side, and the joint seam being on the leeward side.

[0079] Furthermore, in step S5, the volume ratio of the seedling medium is sand: coal gangue powder: mudstone powder: dead branches and leaves powder = 1.5:1:1.5:0.45.

[0080] Furthermore, during the step S6 of filling the pots, after the seedling-raising matrix is ​​filled into the seedling-raising pots, the seedling-raising matrix is ​​filled to a distance of 0.25 cm from the pot mouth.

[0081] Furthermore, the sand-dwelling plant is Ammopiptanthus mongolicus.

[0082] Comparative Example 1

[0083] The difference between this comparative example and Example 3 is that the seedling bed is a rectangular seedling bed without arching.

[0084] Comparative Example 2

[0085] The difference between this comparative example and Example 3 is that step S3 of laying the weed control cloth is not performed.

[0086] Comparative Example 3

[0087] The difference between this comparative example and Example 3 is that the volume ratio of the seedling medium is sand: coal gangue powder: mudstone powder: dead branches and fallen leaves powder = 4:1:1.5:0.45.

[0088] Comparative Example 4

[0089] The difference between this comparative example and Example 3 is that the volume ratio of the seedling medium is sand: coal gangue powder: mudstone powder: dead branches and fallen leaves powder = 1.5:3:0.5:0.2.

[0090] Comparative Example 5

[0091] The difference between this comparative example and Example 3 is that the volume ratio of the seedling culture medium is sand: coal gangue powder: mudstone powder = 1.5:1:1.5.

[0092] Comparative Example 6

[0093] The difference between this comparative example and Example 3 is that the seedling culture medium is mixed by volume in the ratio of sand: mudstone powder: dead branches and fallen leaves powder = 1.5:1.5:0.45.

[0094] Comparative Example 7

[0095] The difference between this comparative example and Example 3 is that the volume ratio of the seedling medium is coal gangue powder: mudstone powder: dead branches and fallen leaves powder = 1:1.5:0.45.

[0096] Comparative Example 8

[0097] The difference between this comparative example and Example 3 is that mudstone powder is used as the seedling culture medium.

[0098] Comparative Example 9

[0099] The difference between this comparative example and Example 3 is that the seedling-raising medium is all made of dead branch and leaf powder.

[0100] Comparative Example 10

[0101] The difference between this comparative example and Example 3 is that coal gangue powder is used entirely as the seedling culture medium.

[0102] Comparative Example 11

[0103] The difference between this comparative example and embodiment 3 is that all the seedling raising substrates are made of sand.

[0104] Comparative Example 12

[0105] The difference between this comparative example and Example 3 is that when the seedling bed is made in step S2, the highest point of the arch in the middle of the arched seedling bed is 0.05m higher than the working path and forms a smooth arch.

[0106] Comparative Example 13

[0107] The difference between this comparative example and Example 3 is that when the seedling bed is made in step S2, the highest point of the arch in the middle of the arched seedling bed 1 is 0.15m higher than the drainage channel and forms a smooth arch.

[0108] The seedlings of Example 1-3 and Comparative Example 1-13 were transplanted after the seedling raising was completed. Before transplanting, 100 seedlings were randomly selected and inspected one by one to observe whether the soil ball was intact and whether there was any cracking, breaking or loosening. The soil ball integrity rate was counted, and the statistical method was as follows: soil ball integrity rate = (total number of soil balls - number of cracked, broken or loose soil balls) / total number of soil balls; the survival rate of the seedlings was counted one month after transplanting, and the results are shown in Table 1.

[0109] Table 1 Statistics of soil ball integrity rate and seedling survival rate

[0110]

[0111] As can be seen from Table 1, by adopting the technical solution of the present invention, the soil ball integrity rate is 100%, the survival rate of seedlings is as high as 99%, and only one seedling is found to have not survived after one month.

[0112] In Comparative Example 1, because the nursery bed was not arched, the soil evaporation was large, salt return occurred, the soil became compacted, and the survival rate of the seedlings was affected.

[0113] In Comparative Example 2, because no weed cloth was laid, the plant roots took root in the nursery bed. When transplanting, the roots were too long and could only be cut off with a shovel, which greatly reduced the survival rate of the seedlings.

[0114] Since the seedling culture medium of Comparative Examples 3-11 is different from that of the present invention, the integrity rate of some soil balls is affected, especially in Comparative Example 11, which all loosened and fell off after the woven bags were removed; the survival rate of the seedlings in Comparative Examples 3-11 was affected.

[0115] In comparison example 12, the arch degree was low, and soil compaction also occurred, affecting the integrity of the soil ball and the survival rate of the seedlings; in comparison example 13, the arch degree was too high, and most of the water flowed into the drainage channel through the working channel, failing to fully store the water, resulting in low moisture content in the soil, which also affected the integrity of the soil ball and the survival rate of the seedlings.

Claims

1. A method for raising seedlings of desert plants, characterized in that: The sand-dwelling plant is Ammopiptanthus mongolicus or Caragana spp., comprising the following steps: S1. Selecting a nursery site: Select land with good wind leeward and drainage conditions as the nursery site; S2. Making a nursery bed: the nursery bed comprises a plurality of arched nursery beds (1), wherein the arched nursery beds (1) are made of soil and are arranged on the ground; a working path (3) is left between two adjacent arched nursery beds (1); The highest point of the arch in the middle of the arched seedling bed (1) is 0.08-0.1 m higher than the working path (3) and forms a smooth arch; the width of the arched seedling bed (1) is 1.1-1.3 m; S3, laying a weeding sheet: laying a weeding sheet on the arched seedbed (1) and fixing it; S4. Making a seedling raising trough frame: the seedling raising trough frame is a bracket (2), the bracket (2) is arranged around the arched seedling bed (1) and fixed to the ground, and a drainage channel (4) is arranged at the outer edge of one side of the bracket (2); the working channel (3) forms a longitudinal slope of 0.3%, and the lower end is connected to the drainage channel (4); S5. Preparation of seedling medium: The seedling medium is made of sand, gangue powder, mudstone powder, and litter powder. The sand, gangue powder, mudstone powder, and litter powder are sprinkled with water until no dust is produced, and stirred evenly to obtain the seedling medium. The seedling medium is mixed by volume in the following ratios: sand: gangue powder: mudstone powder: litter powder = 1-2: 0.5-1.5: 1-2: 0.3-0.6; S6, potting: the seedling medium obtained in step S5 is placed into seedling pots, and neatly arranged on the arched seedling bed (1) in the seedling trough frame, wherein the seedling pots contain soil and water, while the weed cloth laid under the seedling pots does not contain water and other nutrients; S7. Seedling raising: Transplant the sand-tolerant plants into the seedling raising pots or plant the seeds of sand-tolerant plants into the seedling raising pots, water them and maintain them.

2. A method for raising seedlings of desert plants as claimed in claim 1, characterized in that: The width of the working channel (3) is 0.3-0.4 m; the width of the drainage channel (4) is 0.3-0.4 m.

3. A method for raising seedlings of desert plants as claimed in claim 1, characterized in that: The method of laying the weed cloth in S3 is: laying the weed cloth longitudinally on the arched seedbed (1), with the upper side pressing the lower side, the upper side being on the upwind side, and the joint seam being on the leeward side.

4. A method for raising seedlings of desert plants as claimed in claim 1, characterized in that: In step S5, the seedling medium is mixed in a volume ratio of sand: coal gangue powder: mudstone powder: dead branches and leaves powder = 1.5:1:1.5:0.

45.

5. A method for raising seedlings of desert plants as claimed in claim 1, characterized in that: In step S5, the seedling medium is mixed in a volume ratio of sand: coal gangue powder: mudstone powder: dead branches and leaves powder = 1:0.5:1:0.

3.

6. A method for raising seedlings of desert plants as claimed in claim 1, characterized in that: In step S5, the seedling medium is mixed in a volume ratio of sand: coal gangue powder: mudstone powder: dead branches and leaves powder = 2:1.5:2:0.

6.

7. A method for raising seedlings of desert plants as claimed in claim 1, characterized in that: When filling the pot in step S6, after the seedling-raising matrix is ​​filled into the seedling-raising pot, the seedling-raising matrix is ​​filled to a distance of 0.2-0.3 cm from the pot mouth.

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