Bionic planting method for sowing radix bupleuri in rainy season in northern grassland

Abstract

The invention discloses a simulated ecological planting method for sowing radix bupleuri in northern grassland rainy seasons, and belongs to the technical field of radix bupleuri planting. Comprising the following steps: (1) selecting high-quality bupleurum seeds as a seed source material for planting, mixing with fine sand, and planting in degraded natural grassland; (2) covering the surface layers of the seeds with fine sand after sowing, and applying a base fertilizer; (3) carrying out topdressing in a seedling stage; (4) performing reviving investigation at the beginning of the second year, and finishing the simulated ecological seed radix bupleuri in the rainy season when the reviving rate reaches 60-80%; and if the green turning rate does not reach the standard, repeating the step (1). The method mainly solves the problems of low emergence rate, difficulty in field planting and survival of plants and the like after natural grassland radix bupleuri is sown in northern China. The method comprises the following steps of seed source selection, planting field selection, planting time selection, sowing treatment, field management and timely harvesting. Compared with traditional radix bupleuri planting, the method has the advantages that the emergence rate and yield of radix bupleuri can be effectively increased, and remarkable economic benefits and ecological benefits are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of bupleurum planting, in particular to an ecologically simulated planting method for sowing bupleurum in northern grasslands during rainy seasons. Background Art

[0002] In recent years, due to factors such as overgrazing and human interference, natural grassland desertification and salinization have become more serious year by year, and plant resources have been continuously destroyed, resulting in a shortage of grassland productivity and high-quality medicinal plant resources, which not only affects regional economic development, but also has an adverse impact on the balance of the ecosystem. Songnen Grassland is located in an important agricultural and pastoral transition zone in my country. Its grassland degradation has seriously affected the sustainable use of grassland and restricted the development of my country's animal husbandry.

[0003] Bupleurum chinensieDC, a perennial plant of the genus Bupleurum in the family Apiaceae, is also known as firewood. It is a perennial plant that can be used for both feeding and medicine. It has good growth potential, strong environmental adaptability, and is not strict on soil requirements. It can grow in neutral, slightly acidic or slightly alkaline soils. The planting technology and agronomic management are simple to operate. It is a good variety for developing characteristic economy and agricultural wealth. Its dried roots are traditional Chinese medicines, mainly used to treat fever, alternating cold and heat, chest and flank pain, and organ prolapse. It has appeared and been used in pneumonia prevention and treatment programs, making its medicinal active ingredients increasingly valued. The clinical demand for it has increased year by year, but due to its low yield of wild resources, my country's wild Bupleurum resources have been severely damaged. At present, its wild resources are far from meeting the market's pharmaceutical needs. Therefore, it is necessary to continuously explore Bupleurum artificial cultivation technology and increase the planting area to alleviate the problem of market resource shortage. Summary of the invention

[0004] The purpose of the present invention is to provide an eco-simulated planting method for sowing Bupleurum chinense in the rainy season on northern grasslands. The present invention is to solve the technical problems of low emergence rate of artificially planted Bupleurum chinense, difficulty in plant survival, lack of yield, and difficulty in large-scale production, and to provide an eco-simulated planting method for sowing Bupleurum chinense in the rainy season. The method of the present invention can alleviate the shortage of wild Bupleurum chinense resources, increase its yield and quality, improve the quality of the ecological environment, lay a foundation for the subsequent sustainable green development of animal husbandry and industrial processing industries, and increase regional economic benefits.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] One of the technical solutions of the present invention is an ecological planting method for sowing Bupleurum chinense in northern grasslands during the rainy season, comprising the following steps:

[0007] (1) Select high-quality Bupleurum seeds as the seed source material for planting, mix them with fine sand, and plant them in degraded natural grasslands;

[0008] (2) After sowing, cover the surface of the seeds with fine sand and apply basal fertilizer;

[0009] (3) Topdressing during the seedling stage;

[0010] (4) Conduct a greening survey at the beginning of the second year. When the greening rate reaches 60%-80%, the rainy season ecological seed Bupleurum is completed; if the greening rate does not meet the standard, repeat step (1).

[0011] Based on the above technical solution, the present invention has the following technical effects:

[0012] 1. Songnen Grassland is located in a semi-arid and semi-humid area with an annual rainfall of 300-400 mm. It belongs to the temperate continental monsoon climate with good water and heat conditions. Since Bupleurum seeds are suitable for germination and growth in a warmer environment, the rising temperature in the rainy season is suitable for its seed germination and growth, and the presence of plants to block it can also prevent the adverse effects of excessive environmental and ground temperatures on seed germination and seedling growth.

[0013] 2. The present invention can effectively alleviate the demand of plants for water, achieve the purpose of water conservation and efficient utilization, and enable plants to meet the basic conditions for wintering through growth in summer and autumn, thereby ensuring the survival rate of plants during wintering. Mechanical sowing operations in late spring and early summer will not damage the original plants in the grassland, because the original plants do not have a high plant height and will not affect their normal growth. The crushed parts of the plants can be restored to their original state a few days after sowing. This operation does not involve any subsequent human interference except sowing and topdressing, and simulates the wild environment, which is of great benefit in further alleviating the shortage of wild Bupleurum resources. It can also increase the grass production at the end of the growing season, promote the development of regional animal husbandry, and improve the quality of the regional ecological environment.

[0014] 3. The invention has low technical requirements and can be operated by conventional agricultural machinery, avoiding the need for early germination treatment due to low germination rate of direct seeding, saving time and labor, and having high reproducibility, strong feasibility, small operation limitations and easy promotion. The invention greatly improves the effective utilization rate of natural grassland.

[0015] 4. The technology cost is low, and the yield of Bupleurum chinense (dry) per mu is 200-400 jin, and the net income is as low as 5,000 yuan. With the increase of planting years, the yield per mu will increase significantly. Taking sheep grass hay as an example, it is 800-1,000 yuan per ton, which is a great improvement in income. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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 will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is the data graph of Bupleurum emergence rate and greening rate in the test of Example 1 and Example 2;

[0018] Figure 2 It is a data graph of Bupleurum plant height, root length, number of fine roots and number of leaves in the tests of Example 1 and Example 2.

[0019] Figure 3 It is a data graph of the total biomass of a single Bupleurum plant in the experiments of Example 1 and Example 2. DETAILED DESCRIPTION

[0020] Now, various exemplary embodiments of the present invention are described in detail. The methods in the examples are conventional methods unless otherwise specified, and the reagents used are conventional commercially available reagents or reagents prepared by conventional methods unless otherwise specified. This detailed description should not be considered as a limitation of the present invention, but should be understood as a more detailed description of certain aspects, features and embodiments of the present invention.

[0021] It should be understood that the terms described in the present invention are only for describing a particular embodiment and are not intended to limit the present invention. In addition, for the numerical range in the present invention, it should be understood that each intermediate value between the upper and lower limits of the scope is also specifically disclosed. The intermediate value in any stated value or stated range, and each smaller range between any other stated value or intermediate value in the described range is also included in the present invention. The upper and lower limits of these smaller ranges can be independently included or excluded in the scope.

[0022] Unless otherwise indicated, all technical and scientific terms used herein have the same meanings as those generally understood by those skilled in the art. Although the present invention describes only preferred methods and materials, any methods and materials similar or equivalent to those described herein may also be used in the implementation or testing of the present invention. All documents mentioned in this specification are incorporated by reference to disclose and describe the methods and / or materials associated with the documents. In the event of a conflict with any incorporated document, the content of this specification shall prevail.

[0023] It will be apparent to those skilled in the art that various modifications and variations may be made to the specific embodiments of the present invention description without departing from the scope or spirit of the present invention. Other embodiments derived from the present invention description will be apparent to the skilled artisan. The present invention description and examples are exemplary only.

[0024] The words “include,” “including,” “have,” “contain,” etc. used in this document are open-ended terms, meaning including but not limited to.

[0025] The technical solutions described in the present invention, unless otherwise specified, are all conventional solutions in the art, and the reagents or raw materials used, unless otherwise specified, are purchased from commercial channels or have been disclosed.

[0026] The embodiment of the present invention provides an ecological planting method for sowing Bupleurum chinense in northern grasslands during the rainy season, comprising the following steps:

[0027] (1) Select high-quality Bupleurum seeds as the seed source material for planting, mix them with fine sand, and plant them in degraded natural grasslands;

[0028] (2) After sowing, cover the surface of the seeds with fine sand and apply basal fertilizer;

[0029] (3) Topdressing during the seedling stage;

[0030] (4) Conduct a greening survey at the beginning of the second year. When the greening rate reaches 60%-80%, the rainy season ecological seed Bupleurum is completed; if the greening rate does not meet the standard, repeat step (1).

[0031] In some specific embodiments, the quality of the Bupleurum seeds is characterized by a germination rate of more than 60% and an active germplasm purity of more than 85%.

[0032] In some specific embodiments, the mass ratio of the Bupleurum seeds to fine sand is 1:3.

[0033] In some specific embodiments, the plant fall on the degraded natural grassland is 15-20 cm.

[0034] In some specific embodiments, the thickness of the covering fine sand is 0.7-1 cm.

[0035] In some specific embodiments, the base fertilizer is compound fertilizer or urea, and the dosage is 45 kg / mu.

[0036] In some specific implementation schemes, the method of applying topdressing during the seedling stage is: when the Bupleurum seedlings are 6-10 cm tall, apply urea once before rain, with an application amount of 15 kg / mu.

[0037] The present invention reseeds the natural grassland in the rainy season according to the characteristics of Bupleurum chinense germination water requirement and temperature requirement, and the original plants in the grassland had a certain shielding effect on sunlight, which, on the one hand, prevented the plant seeds from being exposed to the sun after sowing, resulting in water loss and difficulty in germination. On the other hand, it can also effectively keep the soil moist after rain, improve the effective utilization rate of water in the seed germination stage, and improve the seed germination and plant colonization rate; at the same time, due to sowing in the rainy season, the number of manual irrigation after sowing can be reduced, reducing labor cost investment.

[0038] The present invention can be widely applied to degraded grasslands in the north. On the one hand, the successful planting of Bupleurum chinense can effectively improve the productivity and community coverage of degraded grassland vegetation. On the other hand, long-term harvesting can increase agricultural economic income, taking into account both ecological barrier restoration and agricultural economic benefits.

[0039] The present invention mainly solves the problems of low emergence rate of Bupleurum chinense after sowing in natural grasslands in the north, and difficulty in plant survival. The invention comprises the following steps: seed source selection, planting site selection, planting time selection, sowing treatment, field management, and timely harvesting. Compared with traditional planting of Bupleurum chinense, the present invention can effectively improve the emergence rate and yield of Bupleurum chinense, and has significant economic and ecological benefits.

[0040] Example 1

[0041] An ecological planting method for sowing bupleurum in rainy season is carried out according to the following steps:

[0042] (1) Select high-quality Bupleurum seeds from the previous year with a germination rate of more than 60% and an active germplasm purity of more than 85% as the seed source material for planting.

[0043] (2) In the first year, select a large area of ​​contiguous degraded natural grassland that can be operated mechanized, with plant height of 15-20 cm.

[0044] (3) Select Bupleurum seeds with full grains and no pests and diseases, and mix them evenly with fine wet sand (to damage the seed coat and break the dormancy mechanism). The mass ratio of seeds to fine sand is 1:3.

[0045] (4) 2-3 days before the rainy season, conventional agricultural mechanized seed sowing is carried out on the degraded grassland. After sowing, the surface of the seeds is covered with 0.7-1 cm fine sand.

[0046] If the natural grassland is a slightly degraded saline-alkali grassland, the seed sowing rate is 35±5kg / ha, and the seed treatment is the same as step (3). The judgment standard for slightly degraded grassland is that the vegetation coverage is more than 90%.

[0047] If the natural grassland is moderately or severely degraded saline-alkali grassland, the seed sowing rate is 70±10kg / ha. The judgment standard for moderately or severely degraded saline-alkali grassland is that the vegetation coverage is less than 60%. At the same time, increase the ratio of fine sand to 1:4 in the mixture of seeds and fine sand, and add organic fertilizer, the amount of organic fertilizer added is 200-300kg / mu.

[0048] (5) After sowing, apply 45kg / mu of compound fertilizer as base fertilizer.

[0049] (6) When the seedlings are 6-10 cm tall, apply urea once before rain at a rate of 15 kg / mu.

[0050] (7) Subsequent agricultural technical activities will not be interfered with by humans, and everything except sowing and topdressing will be consistent with the environment.

[0051] (8) Routine grassland mowing is carried out at the end of the first growing season.

[0052] (9) Conduct a greening survey at the beginning of the second year. When the greening rate reaches 60%-80%, the rainy season ecological seed Bupleurum is completed. If the greening survey does not meet the standard, repeat steps (1) to (4).

[0053] (10) In the third year, the regular Bupleurum chinense harvesting season is carried out, including digging roots, removing mud, and drying them in the sun.

[0054] Example 2

[0055] The only difference from Example 1 is that mechanical sowing of Bupleurum seeds is planted in spring, and the amount of seeds used is:

[0056] If the natural grassland is slightly degraded saline-alkali grassland, the seed sowing rate is 70±10kg / ha. If the natural grassland is moderately or severely degraded saline-alkali grassland, the seed sowing rate is 140±20kg / ha.

[0057] The remaining steps are exactly the same as those in Example 1.

[0058] Experimental results:

[0059] Statistical analysis was performed on Examples 1 and 2. Figure 1-Figure 3 As shown, Example 1 is for sowing Bupleurum in the rainy season, and Example 2 is for sowing Bupleurum in spring. The results show that the emergence rate and the next year greening rate of Bupleurum sown in the rainy season in Example 1 are 74.79% and 71.35%, respectively, which are significantly higher than those in Example 2 ( Figure 1 ). In the year of sowing Figure 2 As shown, the plant traits of Bupleurum chinense sown in the rainy season in Example 1 are significantly higher than those in Example 2, with an average plant height of 17.29±0.49 cm in Example 1 and 15.61±0.45 cm in Example 2, and the root length, number of fine roots and number of leaves are increased by 65.10%, 74.53% and 44.95% respectively compared with Example 2. The average total biomass per plant of Bupleurum chinense planted by the rainy season sowing method in Example 1 is 1.73±0.17 g / plant, and that in Example 2 is 1.36±0.14 g / plant, and Example 1 increases production by 27.21% compared with Example 2.

[0060] In summary, the method of the present invention has a significant effect on sowing Bupleurum chinense, and improves the germination rate, greening rate, growth traits and yield of Bupleurum chinense.

[0061] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For ordinary technical users in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An ecological planting method for sowing Bupleurum chinense in northern grasslands during the rainy season, characterized in that: The following steps are involved: (1) Select high-quality Bupleurum seeds as the seed source material for planting, mix them with fine sand, and plant them in degraded natural grasslands; (2) After sowing, cover the surface of the seeds with fine sand and apply basal fertilizer; (3) Topdressing during the seedling stage; (4) Conduct a greening survey at the beginning of the second year. When the greening rate reaches 60%-80%, the rainy season ecological seed Bupleurum is completed; if the greening rate does not meet the standard, repeat step (1).

2. The ecological planting method according to claim 1, characterized in that: The standards of the high-quality Bupleurum seeds are a germination rate of more than 60% and an active germplasm purity of more than 85%.

3. The ecological planting method according to claim 1, characterized in that: The mass ratio of the bupleurum seeds to the fine sand is 1:

3.

4. The ecological planting method according to claim 1, characterized in that: The fallen plants on the degraded natural grassland have a thickness of 15-20 cm.

5. The ecological planting method according to claim 1, characterized in that: The thickness of the covering fine sand is 0.7-1 cm.

6. The ecological planting method according to claim 1, characterized in that: The base fertilizer is compound fertilizer or urea, and the dosage is 30-45kg / mu.

7. The ecological planting method according to claim 1, characterized in that: The method of applying topdressing during the seedling stage is as follows: when the Bupleurum seedlings are 6-10 cm tall, urea is applied once before rain, with an application amount of 10-15 kg / mu.

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