Artificial induction efficient recovery method for agriophyllum squarrosum

Abstract

The invention provides a sand land natural agriophyllum squarrosum artificial induction rapid recovery method, which comprises the following steps: (1) setting sand barriers, selecting a flowing or semi-flowing dune, and when agriophyllum squarrosum seed induced germination is carried out at the initial stage of a plant growth season in April to May, arranging a row of mechanical sand barriers perpendicular to a main harmful wind direction along the contour line of the dune, and controlling the row spacing to be 4-6m; (2) turning over surface soil, and applying an organic fertilizer; (3) watering and preserving soil moisture. The agriophyllum squarrosum artificial induction efficient recovery method has the advantages that agriophyllum squarrosum is fast and efficient in recovery, and the growth period is prolonged; by utilizing the sensitivity advantage of agriophyllum squarrosum seeds to soil nutrients and moisture, the growth amount is greatly increased after the organic fertilizer is used for improving the sandy soil; the biological sand barrier belt is formed after recovery along the contour line of the dune according to a row belt mode, and compared with a natural cluster-shaped distribution structure, the wind prevention and sand fixation effects are remarkably improved.

Description

Technical Field

[0001] The invention belongs to the technical field of sand control, and more specifically, particularly relates to an artificial induction and efficient restoration method for sandy rice. Background Art

[0002] The natural plant in the sandy land (desert) area in northern my country - sago, is a native grass species with good windbreak and sand fixation function and feeding and edible value. At present, sago mainly relies on the natural germination and growth of natural seeds. Its main characteristics are: in the rainy season (July-August) every year when the soil moisture in the sandy land is good, the seeds buried in the sand on the leeward slope of the sand dune with weak wind erosion and sand accumulation can be naturally germinated, and seedlings can grow and grow. However, there are characteristics such as uneven distribution, small number, and low growth. In addition, the windbreak and sand fixation effect after the vegetation growth recovery is poor, and it cannot reach the high-yield level. The main disadvantages are as follows:

[0003] Disadvantage 1: The natural recovery of sandy rice depends on natural climatic conditions. In the leeward slope of sandy land or in the flat area with weak wind erosion, the seeds are first buried in the sand, and then germinate randomly when encountering suitable water conditions in the rainy season (July-August). The effective growth period is July-September.

[0004] Disadvantage 2: Under the natural sandy soil conditions of sand dunes, the annual growth of sand rice is relatively low. According to field surveys, the annual growth height of a single plant is 50-70cm, the dry matter biomass is between 140-600g, and the crown width is 22-67cm;

[0005] Disadvantage 3: Most of the naturally grown sand grains on the moving sand dunes are distributed in clusters, so there are many exposed patches between the clusters, which are easily affected by local wind erosion of the dunes, and the wind-proof and sand-fixing effect is poor.

[0006] Currently, there is no mature and standardized technical method to artificially promote the rapid growth and high yield of Sago in wild habitats. Therefore, in view of this, research and improvement are carried out on the existing structures and deficiencies, and a method for artificially inducing and efficiently restoring Sago is provided, in order to achieve a more practical purpose. Summary of the invention

[0007] In order to solve the above technical problems, the present invention provides a method for artificially inducing efficient restoration of sphagnum sphagnum, which targets sand dunes with sphagnum sphagnum soil seed banks in the mobile sand and semi-fixed sand areas in the northern sandy areas of our region, and takes artificial induction measures to efficiently restore the natural vegetation in the sand - sphagnum sphagnum, thereby achieving the goal of sand fixation.

[0008] The purpose and efficacy of the artificial induction and efficient recovery method of Psoralea corylifolia of the present invention are achieved by the following specific technical means:

[0009] An artificial induction and efficient recovery method for Psoralea corylifolia comprises the following steps:

[0010] (1) Sand barrier setting: Select mobile or semi-mobile sand dunes and lay out sand barriers in rows along the dune contours and perpendicular to the main harmful wind direction when inducing germination of sphagnum sphagnum seeds at the beginning of the plant growing season;

[0011] (2) Turning and mixing the topsoil and applying organic fertilizer: After the sand barrier is laid and a sand accumulation area is formed on the leeward side of the sand barrier until the topsoil is stable, the topsoil is turned and mixed in a point-like or strip-like layout in a direction parallel to the sand barrier, and organic fertilizer is applied at the same time;

[0012] (3) Watering to maintain soil moisture: Water the soil irregularly according to the drought situation, and keep turning and applying organic fertilizer to treat the soil to maintain the moisture content of the soil.

[0013] Furthermore, the sand barrier material in step (1) is at least one of gauze, wicker and straw.

[0014] Furthermore, the initial period of the plant growth season in step (1) is April to May;

[0015] The row spacing of the row-shaped sand barriers is 4-6m.

[0016] Furthermore, the stirring in step (2) is performed manually with a shovel at a distance of 25-30 cm from the sand barrier.

[0017] Furthermore, in the dotted layout in step (2), the distance between dots is controlled to be 50-100 cm.

[0018] Furthermore, the specific method of the dot layout in step (2) is to first dig a hole with a diameter of 30-50 cm and a depth of 18-22 cm, then mix the excavated sand and organic fertilizer in a ratio of 7:3, and then backfill the hole and compact it;

[0019] The specific method of the strip layout is to first dig a trench with a width of 25-30 cm and a depth of 18-22 cm, then mix the excavated sand and organic fertilizer in a ratio of 7:3, and then backfill the trench and compact it.

[0020] Furthermore, the organic fertilizer in steps (2) and (3) is fully decomposed organic fertilizer.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] (1) It has the characteristics of rapid and efficient recovery of sago and prolongs the growth period;

[0023] (2) Taking advantage of the sensitivity of rice seeds to soil nutrients and water, the growth rate was greatly increased after the sandy soil was improved with organic fertilizer;

[0024] (3) After restoration along the dune contour lines, a biological sand barrier belt was formed. Compared with the natural cluster distribution structure, the windbreak and sand fixation effect was significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0026] Figure 1 This is a picture taken of Example 1, in which the seeds of Gnaphalium sphaerocephalum on the windward side (slope) of the sand dune naturally germinated and grew into seedlings (the seedlings in the circle are Gnaphalium sphaerocephalum seedlings) during the rainy season in July.

[0027] Figure 2 This is a diagram of the natural growth of sand grains on the leeward side (slope) of the mobile sand dunes in November for Example 1.

[0028] Figure 3 This is a diagram of the natural growth of sand grains on the leeward side (slope) of the mobile sand dunes in November for Example 2.

[0029] Figure 4 This is a diagram of the natural growth of sand grains on the leeward side (slope) of the mobile sand dunes in August for Example 3.

[0030] Figure 5 The natural growth conditions of sand grains on the leeward side (slope) of the mobile sand dunes in August in Example 1 Figure 1 .

[0031] Figure 6 The natural growth conditions of sand grains on the leeward side (slope) of the mobile sand dunes in August in Example 1 Figure 2 . DETAILED DESCRIPTION

[0032] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0033] Example 1

[0034] The test site is located in the Ulan Tolegai Sand Control Station in Wushen Banner, Ordos City, Inner Mongolia Autonomous Region. The site type belongs to the sandy soil of the Maowusu Sandy Land.

[0035] The prerequisites and necessary conditions for the natural recovery of S. sphaerocephala: the test dunes originally had S. sphaerocephala growing naturally, and there was a good soil seed bank with natural seeding in the autumn of the previous year (the end of the growing season) to provide seed guarantee for the renewal growth in the second year. In other words, if there was no natural distribution of S. sphaerocephala in the local area, near or around the dunes, there would be no seed source and the natural recovery of S. sphaerocephala could not be achieved. This experiment was carried out on a dune with a good S. sphaerocephala seed bank.

[0036] Specific methods:

[0037] (1) In mid-April 2021, rows of flat-laid mechanical sand barriers were set up on the windward side of the moving sand dunes, with a row spacing of 5m;

[0038] (2) 7-10 days after the sand barrier is laid, a certain sand accumulation area is formed on the leeward side of the sand barrier until the surface soil is stable. The surface soil on the leeward side 25-30 cm away from the sand barrier is manually turned over in dots or strips with a shovel. Fully decomposed organic fertilizer is selected and mixed with sand and organic fertilizer in a ratio of 7:3. The purpose of turning over is to promote the further burial of several sago seeds in the 0-0.5 cm layer of the surface soil. The purpose of applying organic fertilizer is to target the sensitivity of sago seeds to nutrients. , creating a fertile matrix guarantee for the efficient germination and growth of seeds; the specific method of the point layout is to first dig a hole with a diameter of 30-50cm and a depth of 18-22cm, then mix the excavated sand and organic fertilizer in a ratio of 7:3, then backfill it into the hole and tamp it down; the specific method of the strip layout is to first dig a groove with a diameter of 25-30cm and a depth of 18-22cm, then mix the excavated sand and organic fertilizer in a ratio of 7:3, then backfill it into the groove and tamp it down;

[0039] (3) Watering was performed in April, May, and June to increase soil quality. After a full growing season from April to September, the growth survey results are shown in Table 1. Figure 5 and Figure 6 As shown, it can be seen that the recovery growth effect of Sami was good.

[0040] Comparative Example 1

[0041] The same time and place as in Example 1 were used, without any treatment, to keep the sand dunes in their natural state. After a complete plant growth season from April to September, the field growth survey results are shown in Table 1. The growth conditions are as follows: Figure 1 and Figure 2 As shown, it can be seen that at this time, the seeds of S. sambar have the opportunity to germinate and renew naturally under the conditions of no wind erosion and high water content in the sand dune surface soil during the rainy season from July to August, and have the characteristics of sporadic, random distribution and low growth.

[0042] Comparative Example 2

[0043] The same time and place as in Example 1 were used, except that only step (1) was used, and steps (2) and (3) were not performed. After a complete plant growth season from April to September, the growth survey results are shown in Table 1. The growth status is as follows: Figure 3 As shown, it can be seen that setting up sand barriers is also conducive to the recovery of Psoralea corylifolia. There is sporadic recovery along the direction of the sand barriers, but the annual growth rate is not high.

[0044] Comparative Example 3

[0045] The same time and place as in Example 1 were used, except that no organic fertilizer was added in step (2). The rest was the same as in Example 1. After a complete plant growth season from April to September, the growth survey results were shown in Table 1. The growth status was as follows: Figure 4 As shown, it can be seen that the recovery growth effect of Sami was good.

[0046] Table 1 Survey results of the growth of natural plants in sandy land - sago under different experimental treatments

[0047] Experimental treatment Height / cm Crown width / cm Ground diameter / cm Biomass per plant / g Comparative Example 1 26.6 20.6 0.53 26.6 Comparative Example 2 32.5 25.8 0.61 57.5 Improvement rate / % 22.2 25.2 15.1 116.2 Comparative Example 3 62.6 31.3 0.55 117.4 Improvement rate / % 135.3 51.9 3.8 341.4 Example 116.4 84.2 1.8 286.7 Improvement rate / % 337.6 308.7 239.6 977.8

[0048] As can be seen from the table,

[0049] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A highly efficient recovery method for artificial induction of Psoralea corylifolia, characterized in that: The steps include: (1) Sand barrier setting: Select mobile or semi-mobile sand dunes and lay out sand barriers in rows along the dune contours and perpendicular to the main harmful wind direction when inducing germination of sphagnum sphagnum seeds at the beginning of the plant growing season; (2) Turning and mixing the topsoil and applying organic fertilizer: After the sand barrier is laid and a sand accumulation area is formed on the leeward side of the sand barrier until the topsoil is stable, the topsoil is turned and mixed in a point-like or strip-like layout in a direction parallel to the sand barrier, and organic fertilizer is applied at the same time; (3) Watering to maintain soil moisture: Water the soil irregularly according to the drought situation, and keep turning and applying organic fertilizer to treat the soil to maintain the moisture content of the soil.

2. The method for artificially inducing efficient recovery of Psoralea corylifolia as claimed in claim 1, characterized in that: The sand barrier material in step (1) is at least one of gauze, wicker and straw.

3. The method for artificially inducing efficient recovery of Psoralea corylifolia as claimed in claim 1, characterized in that: The initial growth season of the plant in step (1) is April to May; The row spacing of the row-shaped sand barriers is 4-6m.

4. The method for artificially inducing and efficiently recovering Psoralea corylifolia according to claim 1, characterized in that: The stirring in step (2) is performed manually with a shovel at a distance of 25-30 cm from the sand barrier.

5. The method for artificially inducing and efficiently recovering Psoralea corylifolia as claimed in claim 1, characterized in that: In the dot layout described in step (2), the distance between dots is controlled to be 50-100 cm.

6. The method for artificially inducing and efficiently recovering Psoralea corylifolia according to claim 1, characterized in that: The specific method of the dot layout in step (2) is to first dig a hole with a diameter of 30-50 cm and a depth of 18-22 cm, then mix the excavated sand and organic fertilizer in a ratio of 7:3, and then backfill the hole and compact it; The specific method of the strip layout is to first dig a trench with a width of 25-30 cm and a depth of 18-22 cm, then mix the excavated sand and organic fertilizer in a ratio of 7:3, and then backfill the trench and compact it.

7. The method for artificially inducing and efficiently recovering Psoralea corylifolia according to claim 1, characterized in that: The organic fertilizer in steps (2) and (3) is fully decomposed organic fertilizer.

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