Psammophyte seedling cultivation method

Abstract

A psammophyte seedling cultivation method, comprising the following steps: S1, selecting a seedling cultivation site; S2, preparing a seedling cultivation bed, which comprises several arched seedling beds (1), wherein the arched seedling beds (1) are built up in soil and are arranged on the ground, a working aisle (3) is reserved between two adjacent arched seedling beds (1), the highest point of arching in the middle of each arched seedling bed (1) is 0.08-0.1 m higher than the working aisle (3), thus forming a smooth arch, and the working aisle (3) is formed as a 0.3% longitudinal slope, with the low end being in communication with a drainage channel (4); S3, spreading a weeding cloth; S4, manufacturing a seedling cultivation trough frame; S5, preparing a seedling cultivation substrate, which step comprises sprinkling water onto sand, a coal gangue powder, a mudstone powder and a dry branch and fallen leaf powder until no dust is generated, and uniformly stirring same to obtain the seedling cultivation substrate; S6, loading the seedling cultivation substrate into seedling cultivation pots; and S7, cultivating seedlings, which step comprises transplanting psammophytes into the seedling cultivation pots or planting psammophyte seeds into the seedling cultivation pots, and watering and nursing same. By means of providing the arched seedling beds and preparing the seedling cultivation substrate, the method improves the integrity rate of root balls and the survival rate of seedlings.

Description

A method for raising seedlings of psammophyte TECHNICAL FIELD

[0001] The present application relates to the technical field of seedling raising, in particular to a method for raising seedlings of psammophyte. BACKGROUND

[0002] Psammophyte refers to a plant living in a sandy habitat with sand particles as the substrate. Psammophyte plays an important role in desertification control and ecological restoration. Most psammophytes have developed taproots and underdeveloped fibrous roots. When psammophyte is cultivated in a container, the developed taproots penetrate the container and enter the soil. During transplanting, the taproots can only be cut with a shovel due to their excessive length, which greatly reduces the survival rate of transplanted seedlings.

[0003] On the other hand, in the desert area, sand soil is mostly used for seedling raising. However, the cohesiveness of sand soil is poor. When the seedlings are transplanted, the soil ball is easy to break after being removed from the nutrient bowl. In addition, the soil ball is also easy to break during transportation, which reduces the survival rate of transplanted seedlings. In the prior art, clay is usually added to sand to improve its cohesiveness. However, it is costly to dig clay in the desert, and the original vegetation will be damaged. SUMMARY

[0004] To solve the above technical problems, the present application provides a method for raising seedlings of psammophyte, which solves the problem of root penetration in container seedling raising, greatly improves the success rate of psammophyte seedling raising and the survival rate of transplanted seedlings, and specifically comprises the following steps:

[0005] S1, selecting seedling land: selecting land with good wind-shielding and drainage conditions as seedling land;

[0006] S2, making seedling bed: the seedling bed comprises a plurality of arched seedling beds, the arched seedling beds are made of soil and arranged on the ground, and working channels are left between the adjacent two arched seedling beds;

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

[0008] S3, laying grass cloth: laying grass cloth on the arched seedling bed and fixing it;

[0009] S4, making seedling groove frame: the seedling groove frame is a support, the support 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 support, and the working channel forms a 0.3% longitudinal slope, and the low end is connected with the drainage channel;

[0010] The seedling groove frame is made of waste materials such as packaging box boards or support poles removed from green trees;

[0011] S5, seedling substrate preparation: the seedling substrate is made of sand, coal gangue powder, mudstone powder and dry branches and leaves powder, the sand, coal gangue powder, mudstone powder and dry branches and leaves powder are sprinkled with water to be non-dusting, and are uniformly stirred to obtain the seedling substrate;

[0012] S6, potting: the seedling substrate obtained in step S5 is loaded into the seedling pot, and is placed on the arched seedbed in the seedling groove frame; since it is arched, the nutrient pot is placed into the seedling groove frame to prevent the nutrient pot with the loaded substrate from toppling over;

[0013] S7, seedling: the sand plant is transplanted into the seedling pot or the sand plant seed is planted into the seedling pot, water is poured, and maintenance is performed.

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

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

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

[0017] Moreover, the straw is longitudinally laid on the arched seedbed in step S3, the upper layer is on the lower layer, the upper layer is on the windward side, and the joint is on the leeward side.

[0018] Moreover, in step S5, the seedling substrate is proportioned by volume, and the sand: coal gangue powder: mudstone powder: dry branches and leaves powder = 1-2: 0.5-1.5: 1-2: 0.3-0.6.

[0019] Moreover, in step S5, the seedling substrate is proportioned by volume, and the sand: coal gangue powder: mudstone powder: dry branches and leaves powder = 1.5: 1: 1.5: 0.45.

[0020] Moreover, in step S5, the seedling substrate is proportioned by volume, and the sand: coal gangue powder: mudstone powder: dry branches and leaves powder = 1: 0.5: 1: 0.3.

[0021] Moreover, in step S5, the seedling substrate is proportioned by volume, and the sand: coal gangue powder: mudstone powder: dry branches and leaves powder = 2: 1.5: 2: 0.6.

[0022] Moreover, in step S6, after the seedling substrate is loaded into the seedling pot, the seedling substrate is loaded to be 0.2-0.3 cm away from the pot opening.

[0023] Moreover, the sand plant is a cassia fistula or a caragana.

[0024] Compared with the prior art, the beneficial effects of the present application are as follows:

[0025] 1. This invention lays a weed-control cloth on an arched seedbed. After the plants develop roots, the soil and water in the seedling pots, while the weed-control cloth underneath does not contain water or other nutrients, will cause the plant roots to grow in the seedling pots due to their instinct to attract soil and water. This avoids the disadvantage of sandy seedlings having roots that have entered the soil before transplanting, which are too long and can only be cut off with a shovel during transplanting, thus reducing the survival rate of transplanted plants. At the same time, it can also extend the time that the seedlings are in the nursery, improve the growth of sandy plants before transplanting, and further improve the survival rate of transplanted sandy plants.

[0026] 2. The arched seedbed designed in this invention avoids water accumulation at the roots and salinization of the soil ball, thus improving the survival rate of psammophytic plant seedlings.

[0027] 3. This invention uses a volume ratio of sand:coal gangue powder:mudstone powder:fallen leaf powder = 1-2:0.5-1.5:1-2:0.3-0.6 to prepare a seedling substrate, which improves the nutrition of the seedling substrate, increases the firmness of the soil ball, and utilizes the abundant mudstone and coal gangue in the desert to replace clay, thus making use of waste and solving the problem of the soil ball being easily broken when using sand to fill seedling pots. Attached Figure Description

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

[0029] Figure 2 is a schematic diagram of the seedling bed without seedling pots in the seedling pots of the present invention.

[0030] In the diagram, 1-arched seedbed; 2-support frame; 3-working path; 4-drainage channel. Detailed Implementation

[0031] Example 1

[0032] As shown in Figures 1 and 2, a method for cultivating seedlings of psammophytes includes the following steps:

[0033] S1. Selecting a nursery site: Choose a sheltered and well-drained site for the nursery.

[0034] S2. Making seedbeds: The seedbeds include several arched seedbeds 1, which are made of soil and placed on the ground; a working passage 3 is left between two adjacent arched seedbeds 1;

[0035] The highest point of the arched seedbed 1 is 0.08-0.1m higher than the working path 3, forming a smooth arch.

[0036] S3. Lay weed control cloth: Lay weed control cloth on the arched seedbed 1 and fix it in place;

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

[0038] S5, seedling substrate preparation: the seedling substrate is made of sand, coal gangue powder, mudstone powder and dry leaves powder, the sand, coal gangue powder, mudstone powder and dry leaves powder are sprinkled with water to be non-dusting, and are uniformly stirred to obtain the seedling substrate;

[0039] S6, potting: the seedling substrate obtained in step S5 is filled into a seedling pot and is neatly placed on the arcuate seedbed 1 in the seedling groove frame;

[0040] S7, seedling: the xerophyte is transplanted into the seedling pot or the xerophyte seed is planted into the seedling pot, water is poured, and maintenance is performed.

[0041] Further, the width of the arcuate seedbed 1 is 1.1 m.

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

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

[0044] Further, the S3 grass cloth laying mode is that the grass cloth is laid longitudinally on the arcuate seedbed 1, the upper part is pressed on the lower part, the upper part is on the windward head, and the joint is on the leeward side.

[0045] Further, in step S5, the seedling substrate is proportioned by volume, and the proportion of sand: coal gangue powder: mudstone powder: dry leaves powder is 1:0.5:1:0.3.

[0046] Further, in step S6, after the seedling substrate is filled into the seedling pot, the seedling substrate is filled to be 0.2 cm away from the pot opening.

[0047] Further, the xerophyte is a cassia fistula.

[0048] Example 2

[0049] As shown in FIGS. 1 and 2, a xerophyte seedling method includes the following steps:

[0050] S1, selecting a seedling site: selecting land with good wind-shielding and drainage conditions as a seedling site;

[0051] S2, making a seedling bed: the seedling bed includes a plurality of arcuate seedbeds 1, the arcuate seedbeds 1 are made of soil and are arranged on the ground; and a working channel 3 is left between the adjacent two arcuate seedbeds 1;

[0052] The highest point of the arch-shaped seedbed 1 is 0.08-0.1 m higher than the working path 3 and forms a smooth arch shape.

[0053] S3, laying the straw mat: laying the straw mat on the arch-shaped seedbed 1 and fixing it;

[0054] S4, making the seedling groove frame: the seedling groove frame is the support 2, which is arranged around the arch-shaped seedbed 1 and fixed to the ground, and a drainage path 4 is arranged at the outer edge of one side of the support 2; the working path 3 forms a longitudinal slope of 0.3%, and the low end is connected to the drainage path 4;

[0055] S5, making the seedling substrate: the seedling substrate is made of sand, coal gangue powder, mudstone powder and dry leaves, and the sand, coal gangue powder, mudstone powder and dry leaves are sprinkled with water to prevent dust and stirred uniformly to obtain the seedling substrate;

[0056] S6, potting: the seedling substrate obtained in step S5 is filled into the seedling pot and placed neatly on the arch-shaped seedbed 1 in the seedling groove frame;

[0057] S7, seedling: transplanting the halophyte into the seedling pot or planting the halophyte seeds into the seedling pot, watering and maintaining.

[0058] Further, the width of the arch-shaped seedbed 1 is 1.3 m.

[0059] Further, the width of the working path 3 is 0.4 m.

[0060] Further, the width of the drainage path 4 is 0.4 m.

[0061] Further, the way of laying the straw mat in step S3 is to lay the straw mat vertically on the arch-shaped seedbed 1, with the upper part on the lower part, the upper part on the windward side and the joint on the leeward side.

[0062] Further, in step S5, the seedling substrate is mixed in a volume ratio of sand:coal gangue powder:mudstone powder:dry leaves = 2:1.5:2:0.6.

[0063] Further, in step S6, after the seedling substrate is filled into the seedling pot, the seedling substrate is filled to 0.3 cm from the pot opening.

[0064] Further, the halophyte is Caragana.

[0065] Example 3

[0066] As shown in FIGS. 1 and 2, a halophyte seedling method comprises the following steps:

[0067] S1, selecting a seedling site: selecting land with good wind-shielding and drainage conditions as a seedling site;

[0068] S2, making seedling bed: the seedling bed comprises a plurality of arched seedling beds 1, the arched seedling beds 1 are piled up by soil and arranged on the ground; a working path 3 is left between the adjacent two arched seedling beds 1;

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

[0070] S3, laying straw cloth: laying straw cloth on the arched seedling bed 1 and fixing it;

[0071] S4, making seedling groove frame: the seedling groove frame is a support 2, which 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 support 2; the working path 3 forms a longitudinal slope of 0.3%, and the low end is connected with the drainage channel 4;

[0072] S5, making seedling substrate: the seedling substrate is made of sand, coal gangue powder, mudstone powder and dry leaves powder, and the sand, coal gangue powder, mudstone powder and dry leaves powder are sprinkled with water to prevent dust, and then stirred uniformly to obtain the seedling substrate;

[0073] S6, potting: the seedling substrate obtained in step S5 is filled into the seedling pot and placed neatly on the arched seedling bed 1 in the seedling groove frame;

[0074] S7, seedling: transplanting the halophyte into the seedling pot or planting the halophyte seeds into the seedling pot, watering and maintaining.

[0075] Further, the width of the arched seedling bed 1 is 1.2m.

[0076] Further, the width of the working path 3 is 0.35m.

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

[0078] Further, the way of laying straw cloth in step S3 is: laying straw cloth vertically on the arched seedling bed 1, the upper layer is on the lower layer, the upper layer is on the windward side, and the joint is on the leeward side.

[0079] Further, in step S5, the seedling substrate is proportioned by volume, sand: coal gangue powder: mudstone powder: dry leaves powder = 1.5:1:1.5:0.45.

[0080] Further, in step S6, after the seedling substrate is filled into the seedling pot, the seedling substrate is filled to 0.25cm from the pot opening.

[0081] Further, the halophyte is aadistoma.

[0082] Comparative example 1

[0083] The difference between this comparative example and Example 3 is that the seedbed is a rectangular seedbed, and no arch is formed.

[0084] Comparative Example 2

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

[0086] Comparative Example 3

[0087] The difference between this comparative example and Example 3 is that the seedbed substrate is mixed by volume, sand: coal gangue powder: mudstone powder: dry branch and leaf powder = 4: 1: 1.5: 0.45.

[0088] Comparative Example 4

[0089] The difference between this comparative example and Example 3 is that the seedbed substrate is mixed by volume, sand: coal gangue powder: mudstone powder: dry branch and leaf 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 seedbed substrate is mixed by volume, 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 seedbed substrate is mixed by volume, sand: mudstone powder: dry branch and leaf powder = 1.5: 1.5: 0.45.

[0094] Comparative Example 7

[0095] The difference between this comparative example and Example 3 is that the seedbed substrate is mixed by volume, coal gangue powder: mudstone powder: dry branch and leaf powder = 1: 1.5: 0.45.

[0096] Comparative Example 8

[0097] The difference between this comparative example and Example 3 is that the seedbed substrate is all mudstone powder.

[0098] Comparative Example 9

[0099] The difference between this comparative example and Example 3 is that the seedbed substrate is all dry branch and leaf powder.

[0100] Comparative Example 10

[0101] The difference between this comparative example and Example 3 is that the seedbed substrate is all coal gangue powder.

[0102] Comparative Example 11

[0103] The difference between the present comparative example and Example 3 is that the seedling raising substrate is all sand.

[0104] Comparative Example 12

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

[0106] Comparative Example 13

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

[0108] The seedlings of Examples 1-3 and Comparative Examples 1-13 after the seedling raising are transplanted. Before the transplantation, 100 seedlings are randomly selected and checked one by one to observe whether the soil balls are complete, have cracking, breaking, and loosening, and the complete rate of the soil balls is calculated according to the following method: complete rate of soil balls = (total number of soil balls - number of cracked, broken, and loosened soil balls) / total number of soil balls. The survival rate of the seedlings is calculated one month after the transplantation, and the results are shown in Table 1.

[0109] Table 1: Complete rate of soil balls and survival rate of seedlings

[0110]

[0111] As can be seen from Table 1, the complete rate of the soil balls is 100% and the highest survival rate of the seedlings is 99% by using the technical scheme of the present application, and only one seedling is found to be dead one month later.

[0112] Comparative Example 1 has a large amount of soil evaporation due to the absence of arching of the seedling bed, resulting in salt return and soil hardening, which affects the survival rate of the seedlings.

[0113] Comparative Example 2 has a large amount of root growth into the seedling bed due to the absence of the grass cloth, and the roots can only be cut by a shovel during the transplantation, which greatly reduces the survival rate of the seedlings.

[0114] Comparative Examples 3-11 have an affected complete rate of the soil balls due to the difference in the seedling raising substrate from the present application, and the survival rate of the seedlings is also affected.

[0115] Comparative Example 12 has soil hardening due to the low arching degree, which affects the complete rate of the soil balls and the survival rate of the seedlings; and Comparative Example 13 has a high arching degree, and most of the water flows into the drainage channel through the working channel, which fails to store the water sufficiently, and the water content in the soil is low, which also affects the complete rate of the soil balls and the survival rate of the seedlings.

Claims

1. A method for raising a sand plant seedling, characterized by, The psammophyte is Ammodendron or Caragana, comprising the following steps: S1, breeding seedbed: selecting land with good drainage conditions as the seedbed; S2, making the seedbed: the seedbed comprises a plurality of arched seedbeds (1) which are made of soil and arranged on the ground; two adjacent arched seedbeds (1) are separated by a working channel (3); The highest point of the arched seedbed (1) is 0.08-0.1 m higher than the working channel (3) and forms a smooth arch; the width of the arched seedbed (1) is 1.1-1.3 m; S3, laying the weed cloth: laying the weed cloth on the arched seedbed (1) and fixing it; S4, making the seedling groove frame: the seedling groove frame is a support (2) which is arranged around the arched seedbed (1) and fixed to the ground, and a drainage channel (4) is arranged at the outer edge of one side of the support (2); the working channel (3) forms a 0.3% longitudinal slope, and the low end is connected to the drainage channel (4); S5, making the seedling substrate: the seedling substrate is made of sand, coal gangue powder, mudstone powder and dry leaves, and the sand, coal gangue powder, mudstone powder and dry leaves are sprinkled with water to prevent dust, and then stirred uniformly to obtain the seedling substrate; the seedling substrate is proportioned by volume, and the proportion of sand, coal gangue powder, mudstone powder and dry leaves is 1-2:0.5-1.5:1-2:0.3-0.6; S6, potting: the seedling substrate obtained in step S5 is put into the seedling pot and placed neatly on the arched seedbed (1) in the seedling groove frame; the seedling pot contains soil and water, and the weed cloth laid under the seedling pot does not contain water and other nutrients; S7, seedling: transplanting the psammophyte into the seedling pot or planting the psammophyte seeds into the seedling pot, watering and maintaining.

2. The method for raising a psammophyte seedling according to claim 1, wherein 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. The method for raising a psammophyte seedling according to claim 1, wherein The method of laying the weed cloth in step S3 is to lay the weed cloth vertically on the arched seedbed (1), with the upper part pressing the lower part, the upper part facing the wind, and the joint being on the leeward side.

4. The method for raising a psammophyte seedling according to claim 1, wherein In step S5, the seedling substrate is proportioned by volume, and the proportion of sand, coal gangue powder, mudstone powder and dry leaves is 1.5:1:1.5:0.

45.

5. The method for raising a psammophyte seedling according to claim 1, wherein In step S5, the seedling substrate is proportioned by volume, and the proportion of sand, coal gangue powder, mudstone powder and dry leaves is 1:0.5:1:0.

3.

6. The method for raising a psammophyte seedling according to claim 1, wherein In step S5, the seedling substrate is proportioned by volume, and the proportion of sand, coal gangue powder, mudstone powder and dry leaves is 2:1.5:2:0.

6.

7. The method for raising a psammophyte seedling according to claim 1, wherein In step S6, after the seedling substrate is put into the seedling pot, the seedling substrate is put into the pot mouth at a distance of 0.2-0.3 cm.

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