Seaweed oligosaccharide-containing regulator and application thereof in improving wheat germination ability

Abstract

The invention relates to a regulator containing seaweed oligosaccharide and application of the regulator to improvement of wheat germination ability, and relates to the technical field of wheat planting.The regulator containing seaweed oligosaccharide is prepared from, by weight, 8-12 parts of seaweed oligosaccharide; 30-40 parts of humic acid and 10-15 parts of a microbial agent; 20-30 parts of a nitrogen fertilizer; and 8-10 parts of compound amino acid. The invention discloses application of a conditioning agent containing seaweed oligosaccharide to improvement of wheat germination ability under the condition of straw returning to field. According to the invention, nutrients competed with wheat in the decomposition process of straw and active substances for promoting seed germination and improving crop resistance are supplemented, and germination and growth of wheat are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of wheat planting, in particular to a regulator containing seaweed oligosaccharide and application thereof in improving the germination ability of wheat. Background Art

[0002] Rice-wheat rotation is a traditional agricultural practice that aims to optimize the use of land resources by alternating the planting of different crops. This rotation pattern is usually arranged according to local climatic conditions, soil types and crop growth cycles. As an aquatic crop, rice has high water requirements, while wheat is relatively drought-tolerant. Therefore, after the rice is harvested, the land can be properly rested and prepared before planting wheat, thus achieving efficient use of land resources throughout the year.

[0003] After rice is harvested, rice straw is processed accordingly before wheat is planted. There is a direct burning method for rice straw treatment, but direct burning of rice straw will produce a lot of smoke and harmful gases, polluting air quality and the environment. Returning straw to the field can effectively avoid this problem and reduce air pollution.

[0004] However, there are still some problems in returning straw to the field at the current stage, such as: during the decomposition process, straw will absorb nutrients such as nitrogen in the soil, which may compete with wheat for nutrients and affect wheat germination and growth; and straw may carry eggs or bacteria of some pests and diseases. If they are not effectively treated before returning to the field, these pests and diseases may survive and reproduce in the soil, threatening the germination ability of wheat. In response to the above problems, the inventor proposed a regulator containing seaweed oligosaccharides, and applied it to improve the germination ability of wheat under the condition of returning straw to the field. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a regulator containing seaweed oligosaccharides and its application in improving the germination ability of wheat.

[0006] The present invention is achieved through the following technical solutions: A regulator containing seaweed oligosaccharide comprises the following components in parts by weight: 8-12 parts of seaweed oligosaccharide; 30-40 parts of humic acid; 10-15 parts of microbial agent; 20-30 parts of nitrogen fertilizer; and 8-10 parts of composite amino acid.

[0007] Among them, seaweed oligosaccharides can increase the germination rate of wheat seeds, so that more wheat seeds can germinate smoothly, and seaweed oligosaccharides can enhance the stress resistance of wheat. At the same time, seaweed oligosaccharides can activate enzymes related to growth and development, promote the absorption and conversion of light energy by chloroplasts, and accelerate the process of carbon and nitrogen metabolism, thereby increasing the yield of wheat. Seaweed oligosaccharides and humic acid together as chelating agents can enhance the stability and biological activity of trace elements in the soil and plants; and seaweed oligosaccharides and humic acid can ensure the stability of microbial agents, nitrogen fertilizers and compound amino acids, and then continuously provide the nutrients needed for wheat growth, ensuring the germination rate and yield of wheat. Among them, microbial agents can not only play a role in further decomposing rice straw, but also provide fertility for the soil, provide nutrients for wheat growth, and reduce the occurrence of diseases and insect pests; because rice straw will absorb nitrogen in the soil during the decomposition process, supplementing nitrogen fertilizers provides the nitrogen required for wheat germination and growth. Complex amino acids can increase the absorption and utilization rate of nitrogen fertilizer by wheat by 20% to 40%. At the same time, amino acids can promote the germination, growth and development of crops, and improve the quality and yield of wheat.

[0008] The microbial agent includes Bacillus subtilis, Bacillus circulans and Bacillus thuringiensis. The effective live bacteria ratio of Bacillus subtilis, Bacillus circulans and Bacillus thuringiensis in the microbial agent is (1×10 7 ~6×10 8 )∶(2×10 9 ~6×10 10 )∶(1×10 5 ~3×10 6 ).

[0009] Among them, Bacillus subtilis and seaweed oligosaccharides can significantly promote the root development of plants and enhance the root's ability to absorb water and nutrients after synergistic cooperation. This helps plants better cope with environmental pressures and improve growth rate and stress resistance. And the composite composition of Bacillus subtilis and seaweed oligosaccharides is significantly better than the application of one of the substances alone in promoting plant germination and growth. Bacillus subtilis can secrete a variety of enzymes, promote the decomposition and mineralization of organic matter in the soil, and improve the effectiveness of soil nutrients. Seaweed oligosaccharides can improve soil structure and enhance the soil's ability to retain water and fertilizer. The combination of the two helps to build a soil environment that is more conducive to plant growth. Bacillus subtilis has a broad spectrum of antibacterial activity and can inhibit the growth of a variety of plant pathogens. After mixing with seaweed oligosaccharides, this antibacterial effect may be further enhanced, thereby reducing the incidence of plant diseases.

[0010] Bacillus circulans, Bacillus subtilis and Bacillus thuringiensis may promote plant growth and development through different mechanisms. Bacillus subtilis can produce plant growth hormones to promote root development and nutrient absorption; although Bacillus thuringiensis mainly acts on pests, it also indirectly promotes plant growth by reducing the damage caused by pests to plants; Bacillus circulans supports plant growth by improving the soil microenvironment or providing other beneficial substances. The synergistic effect of the three can form a more comprehensive plant health promotion system. Moreover, Bacillus circulans, Bacillus subtilis and Bacillus thuringiensis maintain a relatively stable state under the action of seaweed oligosaccharides and humic acid.

[0011] The composite amino acid comprises aspartic acid, glutamic acid, valine and proline. The mass ratio of aspartic acid, glutamic acid, valine and proline in the composite amino acid is 3:(1-3):(1-3):(1-3).

[0012] Aspartic acid is essential for protein synthesis and nitrogen supply in the early stage of plant seed germination, which helps to improve the germination rate of seeds. At the same time, as a fertilizer enhancer, aspartic acid can promote the absorption of nutrients by crops, improve fertilizer utilization, reduce fertilizer usage, and reduce agricultural production costs. Glutamic acid can significantly increase crop yields by promoting photosynthesis and nitrogen metabolism. Valine has a positive effect on the germination of wheat seeds, which can increase the germination rate of seeds, stimulate the growth of crop roots, increase the root absorption area, and improve the crop's ability to absorb water and nutrients. Proline can also be used as a plant growth regulator to promote the growth and development of crops.

[0013] When aspartic acid and glutamic acid are combined, both can improve the photosynthesis and stress resistance of crops. Their combination can further enhance these effects and promote the healthy growth of crops. When valine and proline are combined, valine promotes root growth and stress resistance, while proline mainly plays a role under adverse conditions. The combination of valine and proline can comprehensively improve the stress resistance and growth ability of crops. Aspartic acid, glutamic acid, valine, and proline can also maintain a relatively stable state under the action of seaweed oligosaccharides and humic acid, and can provide nutrition for wheat for a relatively long time.

[0014] The regulator containing seaweed oligosaccharide also includes 0.5-1 parts by weight of chloroindole hydrazide.

[0015] When chloroindole hydrazide is combined with Bacillus thuringiensis and Bacillus subtilis, it has a better effect of killing pests and resisting harmful bacteria. The amount of chloroindole hydrazide added is small, and it has no negative impact on the microbial flora in the soil. In addition, seaweed oligosaccharides and humic acid maintain the stability and durability of chloroindole hydrazide, thereby reducing the spraying of pesticides in subsequent wheat field management.

[0016] The regulator containing seaweed oligosaccharides also includes 2 to 4 parts by weight of brassinolide.

[0017] The mixed use of brassinolide with chloroindole hydrazide, Bacillus subtilis and Bacillus thuringiensis can enhance the control effect, and brassinolide can further reduce the damage to plants caused by chloroindole hydrazide and other pesticides and promote recovery of growth; brassinolide works together with humic acid, seaweed oligosaccharides, nitrogen fertilizer, complex amino acids, etc. to improve the absorption and utilization rate of nutrients.

[0018] The application of a regulator containing seaweed oligosaccharides in improving the germination ability of wheat under the condition of returning straw to the field specifically comprises the following steps: S1, harvesting rice and scattering the rice stalks into the field; S2, applying any one of the regulators containing seaweed oligosaccharides as described in claims 1-7; S3, soil pH adjustment by liming; S4, plowing the field with straw so that the straw is deeply buried in the field; the plowing depth in step S4 is 15-20 cm; S5, sowing wheat seeds; S6, field management.

[0019] Under the condition of returning rice straw to the field and combined with the tillage depth (15~20cm), this regulator can effectively improve the level of wheat germination.

[0020] In summary, the present invention includes at least one of the following beneficial technical effects: 1. Seaweed oligosaccharides can increase the germination rate of wheat seeds, allowing more wheat seeds to germinate successfully. Seaweed oligosaccharides can also enhance the stress resistance of wheat. At the same time, seaweed oligosaccharides can activate enzymes related to growth and development, promote the absorption and conversion of light energy by chloroplasts, and accelerate the process of carbon and nitrogen metabolism, thereby increasing wheat yields.

[0021] 2. Seaweed oligosaccharides and humic acid act together as chelating agents, which can enhance the stability and biological activity of trace elements in the soil and plants; and seaweed oligosaccharides and humic acid can ensure the stability of microbial agents, nitrogen fertilizers and complex amino acids, thereby continuously providing the nutrients needed for wheat growth and ensuring the germination rate and yield of wheat.

[0022] 3. The synergistic combination of Bacillus subtilis and seaweed oligosaccharides can significantly promote the development of plant roots and enhance the root system's ability to absorb water and nutrients; the combination of the two helps to build a soil environment that is more conducive to plant growth; Bacillus subtilis has a broad spectrum of antibacterial activity and can inhibit the growth of a variety of plant pathogens. After mixing with seaweed oligosaccharides, this antibacterial effect may be further enhanced, thereby reducing the incidence of plant diseases.

[0023] 4. Bacillus circulans, Bacillus subtilis and Bacillus thuringiensis may promote plant growth and development through different mechanisms; the three bacteria work together to form a more comprehensive plant health promotion system. In addition, Bacillus circulans, Bacillus subtilis and Bacillus thuringiensis maintain a relatively stable state under the action of seaweed oligosaccharides and humic acid.

[0024] 5. When aspartic acid and glutamic acid are combined, both can improve the photosynthesis and stress resistance of crops. Their combined use can further enhance these effects and promote the healthy growth of crops. When valine and proline are combined, valine promotes root growth and stress resistance, while proline mainly plays a role under adverse conditions. The combination of valine and proline can comprehensively improve the stress resistance and growth ability of crops.

[0025] 6. After chloroindole hydrazide is combined with Bacillus thuringiensis and Bacillus subtilis, it has a better effect of killing pests and resisting harmful bacteria. The amount of chloroindole hydrazide added is small, and it has no negative impact on the microbial flora in the soil. In addition, seaweed oligosaccharides and humic acid maintain the stability and durability of chloroindole hydrazide, thereby reducing the spraying of pesticides in subsequent wheat field management.

[0026] 7. The mixed use of brassinolide with chloroindole hydrazide, Bacillus subtilis and Bacillus thuringiensis can enhance the control effect, and brassinolide can further reduce the damage to plants caused by chloroindole hydrazide and other pesticides and promote recovery of growth; brassinolide works together with humic acid, seaweed oligosaccharides, nitrogen fertilizer, complex amino acids, etc. to improve the absorption and utilization rate of nutrients. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Here are photos of wheat germination and growth using regulators; Figure 2 These are photos of wheat germination and growth without the use of regulators. DETAILED DESCRIPTION Example 1

[0028] A regulator containing seaweed oligosaccharides, comprising the following components in parts by weight: 10 parts of seaweed oligosaccharide, seaweed oligosaccharide was purchased from Shanghai Jinhaizao Biotechnology Development Co., Ltd.

[0029] 35 parts of humic acid, the humic acid is lignite humic acid (organic matter content ≥ 70%, humic acid content ≥ 10%).

[0030] 25 parts of nitrogen fertilizer, nitrogen fertilizer was purchased from Henan Anyang Zhongsheng Fertilizer Technology Co., Ltd.

[0031] 12.5 parts of microbial agent, the effective live bacteria ratio of Bacillus subtilis, Bacillus circulans and Bacillus thuringiensis in the microbial agent is 6×10 8 ∶6×10 10 ∶3×10 6 The strains were from our research group.

[0032] 9 portions of composite amino acids, in which the mass ratio of aspartic acid, glutamic acid, valine and proline added is 3:2:2:2, and aspartic acid, glutamic acid, valine and proline are purchased from Shanghai Yuanye.

[0033] 0.75 parts of chloroindole hydrazide was purchased from Jingbo Agrochemical Technology Co., Ltd.

[0034] 3 parts of brassinolide were purchased from Maclean.

[0035] The obtained regulator containing seaweed oligosaccharides is applied to improve the germination ability of wheat under the condition of returning straw to the field, which specifically comprises the following steps: S1, harvesting rice and scattering the rice stalks into the field; S2, applying the prepared regulator containing seaweed oligosaccharides, the regulator addition amount is 80 kg / mu; S3, soil pH was adjusted to 8.5 by lime; S4, plowing the field with straw, with a plowing depth of 20 cm, so that the straw is deeply buried in the field; S5, sowing wheat seeds; S6, field management. Example 2-3

[0036] The difference between Example 2-3 and Example 1 is that the amount of seaweed oligosaccharide added is different, that is, 8 parts by weight are added in Example 2, and 12 parts by weight are added in Example 3. Embodiment 4-5

[0037] The difference between Example 4-5 and Example 1 is that the amount of humic acid added is different, that is, 30 parts by weight of humic acid is added in Example 4, and that of 40 parts by weight of humic acid is added in Example 5. Embodiment 6-7

[0038] The difference between Example 6-7 and Example 1 is that the amount of microbial agent added is different, the weight parts added in Example 6 is 10 parts, and the weight parts added in Example 7 is 15 parts. Example 8

[0039] The difference between Example 8 and Example 1 is that the effective live bacteria counts of the specific added bacteria are different. In Example 8, the effective live bacteria ratio of Bacillus subtilis, Bacillus circulans and Bacillus thuringiensis is 1×10 7 ∶2×10 9 ∶1×10 5 . Examples 9-10

[0040] The difference between Example 9-10 and Example 1 is that the amount of nitrogen fertilizer added is different. The amount of nitrogen fertilizer added in Example 9 is 20 parts, and the amount of nitrogen fertilizer added in Example 10 is 30 parts. Examples 11-12

[0041] The difference between Example 11-12 and Example 1 is that the added amount of the composite amino acid is different, the added amount in Example 11 is 8 parts, and the added amount in Example 12 is 10 parts. Examples 13-14

[0042] The difference between Examples 13-14 and Example 1 is that the proportions of the specific added amino acids are different. In Example 12, the mass ratio of aspartic acid, glutamic acid, valine and proline added is 3:1:1:1, and in Example 13, the mass ratio of aspartic acid, glutamic acid, valine and proline added is 3:3:3:3. Examples 15-16

[0043] The difference between Example 15-16 and Example 1 is that the amount of chloroindole hydrazide added is different. In Example 15, the amount of chloroindole hydrazide added is 0.5 parts, and in Example 16, the amount of chloroindole hydrazide added is 1 part. Examples 17-18

[0044] The difference between Examples 17-18 and Example 1 is that the amount of brassinolide added is different. In Example 17, the amount of brassinolide added is 2 parts by weight, while in Example 18, the amount of brassinolide added is 4 parts by weight. Examples 19-20

[0045] The difference between Examples 19-20 and Example 1 is that when applying the prepared regulator containing seaweed oligosaccharides, the added amount of the regulator is different, the added amount in Example 19 is 60 kg / mu, and the added amount in Example 20 is 100 kg / mu. Examples 21-22

[0046] The difference between Example 21-22 and Example 1 is that the tillage depth in step S4 is different. The tillage depth of Example 21 is 15 cm, and the tillage depth of Example 22 is 17.5 cm. Embodiment 23

[0047] The difference between Example 23 and Example 1 is that chloroindole hydrazide is not added. Embodiment 24

[0048] The difference between Example 24 and Example 1 is that brassinolide is not added. Comparative Example 1

[0049] The difference between Comparative Example 1 and Example 1 is that no regulator is added. Comparative Example 2

[0050] The difference between Comparative Example 2 and Example 1 is that no seaweed oligosaccharide is added to the regulator. Comparative Example 3

[0051] The difference between Comparative Example 3 and Example 1 is that no humic acid is added to the regulator. Comparative Example 4

[0052] The difference between Comparative Example 4 and Example 1 is that no microbial agent is added to the regulator. Comparative Example 5

[0053] The difference between Comparative Example 5 and Example 1 is that the microbial agent does not include Bacillus subtilis. Comparative Example 6

[0054] The difference between Comparative Example 6 and Example 1 is that the microbial agent does not include Bacillus circulans. Comparative Example 7

[0055] The difference between Comparative Example 7 and Example 1 is that the microbial agent does not include Bacillus thuringiensis. Comparative Example 8

[0056] The difference between Comparative Example 8 and Example 1 is that no nitrogen fertilizer is added to the regulator. Comparative Example 9

[0057] The difference between Comparative Example 9 and Example 1 is that no complex amino acid is added to the regulator. Comparative Example 10

[0058] The difference between Comparative Example 10 and Example 1 is that the composite amino acid does not include aspartic acid. Comparative Example 11

[0059] The difference between Comparative Example 11 and Example 1 is that glutamic acid is not included in the composite amino acid. Comparative Example 12

[0060] The difference between Comparative Example 12 and Example 1 is that valine is not included in the composite amino acid. Comparative Example 13

[0061] The difference between Comparative Example 13 and Example 1 is that proline is not included in the composite amino acid. Comparative Example 14

[0062] The difference between Comparative Example 14 and Example 1 is that the tillage depth in step S4 is only 5 cm. Results Analysis

[0063] 1. Comparing Examples 1-24 and Comparative Example 1, Examples 1-24 all supplemented the nutrients that the straw competed with wheat during the decomposition process, which to a certain extent ensured the germination rate of wheat and promoted the growth of wheat. However, the germination and growth of wheat in Comparative Example 1 were far inferior to those in Examples 1-24. The germination and growth of wheat in Example 1 and Comparative Example 1 are shown in Figure 1 and Figure 2 , and the stress resistance, wheat yield and quality of Comparative Example 1 are far inferior to those of Examples 1-24.

[0064] 2. Comparing Examples 1-3 and Comparative Example 2, the stress resistance and wheat quality of Comparative Example 2 without adding seaweed oligosaccharides are not as good as those of Examples 1-3. This may be because seaweed oligosaccharides can increase the germination rate of wheat seeds, allowing more wheat seeds to germinate smoothly, and seaweed oligosaccharides can enhance the stress resistance of wheat. At the same time, seaweed oligosaccharides can activate enzymes related to growth and development, promote the absorption and conversion of light energy by chloroplasts, and accelerate the carbon and nitrogen metabolism process, thereby increasing wheat yield; seaweed oligosaccharides and humic acid together as chelating agents can enhance the stability and biological activity of trace elements in soil and plants; and seaweed oligosaccharides and humic acid can ensure the stability of microbial agents, nitrogen fertilizers and complex amino acids, thereby continuously providing the nutrients required for wheat growth and ensuring the germination rate and yield of wheat.

[0065] 3. Comparing Examples 1, 4-5 and Comparative Example 3, the wheat quality and yield of Comparative Example 3 without adding humic acid are not as good as those of Examples 1 and 4-5. This may be because seaweed oligosaccharides and humic acid act together as chelating agents, which can enhance the stability and biological activity of trace elements in the soil and plants; and seaweed oligosaccharides and humic acid can ensure the stability of microbial agents, nitrogen fertilizers and compound amino acids, thereby continuously providing nutrients required for wheat growth, ensuring the germination rate and yield of wheat.

[0066] 4. Comparing Examples 1, 6-8, and Comparative Examples 4-7, the germination rate and stress resistance of wheat in Comparative Example 4 without adding microbial agents are not as good as those in Examples 1 and 6-8, and it is necessary to spray pesticides to treat pests during subsequent field management; Comparative Examples 5 and 6 without adding Bacillus subtilis and Bacillus circulans also have a certain effect on the germination rate and stress resistance of wheat; Comparative Example 7 without adding Bacillus thuringiensis also has a certain effect on the germination rate of wheat, and it is also necessary to treat pests additionally. It may be because Bacillus circulans, Bacillus subtilis, and Bacillus thuringiensis may promote the growth and development of plants through different mechanisms; the synergistic effect of the three can form a more comprehensive plant health promotion system. And Bacillus circulans, Bacillus subtilis, and Bacillus thuringiensis maintain a relatively stable state under the action of seaweed oligosaccharides and humic acid.

[0067] 5. Comparing Examples 1, 9-10 and Comparative Example 8, the absence of nitrogen fertilizer had a certain impact on the germination rate of wheat and the quality of wheat. This may be because the nitrogen element was robbed away by the decomposition of the straw and was not replenished in time.

[0068] 6. Comparing Examples 1, 11-14 and Comparative Examples 9-13, the addition of composite amino acids and their components all had a certain effect on the germination rate and quality of wheat. It may be because aspartic acid is crucial to protein synthesis and nitrogen supply in the early stage of plant seed germination, which helps to improve the germination rate of seeds; at the same time, aspartic acid, as a fertilizer synergist, can promote the absorption of nutrients by crops, improve fertilizer utilization, reduce fertilizer dosage, and reduce agricultural production costs. Glutamic acid can significantly increase crop yields by promoting photosynthesis and nitrogen metabolism. Valine has a positive promoting effect on the germination of wheat seeds, can improve the germination rate of seeds, can also stimulate the growth of crop roots, increase the root absorption area, and improve the crop's ability to absorb water and nutrients. Proline can also be used as a plant growth regulator to promote the growth and development of crops. After aspartic acid and glutamic acid are compounded, both can improve the photosynthesis and stress resistance of crops, and the combination can further enhance these effects and promote the healthy growth of crops. When valine and proline are combined, valine promotes root growth and stress resistance, while proline mainly plays a role under adverse conditions. The combination of valine and proline can comprehensively enhance the stress resistance and growth ability of crops.

[0069] 7. Comparing Examples 1, 15-16, and 23, it is not necessary to treat the pests in the subsequent field management stage without adding chloroindole hydrazide. This may be because chloroindole hydrazide has a better effect of killing pests and resisting harmful bacteria after being combined with Bacillus thuringiensis and Bacillus subtilis, and the amount of chloroindole hydrazide added is small, and it does not have a negative impact on the microbial flora in the soil. In addition, seaweed oligosaccharides and humic acid maintain the stability and durability of chloroindole hydrazide, thereby reducing the spraying of pesticides in subsequent wheat field management.

[0070] 8. Comparing Examples 1, 17-18, and 24, the absence of brassinolide has a certain impact on the quality of wheat. This may be because the mixed use of brassinolide with chloroindole hydrazide, Bacillus subtilis, and Bacillus thuringiensis can enhance the control effect, and brassinolide can further reduce the damage to plants caused by chloroindole hydrazide and other pesticides and promote recovery growth; brassinolide works together with humic acid, seaweed oligosaccharides, nitrogen fertilizer, and complex amino acids to improve the absorption and utilization rate of nutrients.

[0071] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, a person skilled in the art may make non-creative modifications to the present embodiment as needed, but as long as it is within the scope of the present application, it shall be protected by the patent law.

Claims

1. A regulator containing seaweed oligosaccharides, characterized in that: The invention comprises the following components in parts by weight: 8-12 parts of seaweed oligosaccharide; 30-40 parts of humic acid; 10-15 parts of microbial agent; 20-30 parts of nitrogen fertilizer; and 8-10 parts of compound amino acid.

2. The regulator containing seaweed oligosaccharides according to claim 1, characterized in that The microbial agents include Bacillus subtilis, Bacillus circulans and Bacillus thuringiensis.

3. The regulator containing seaweed oligosaccharides according to claim 2, characterized in that The effective live bacteria ratio of Bacillus subtilis, Bacillus circulans and Bacillus thuringiensis in the microbial agent is (1×10 7 ~6×10 8 )∶(2×10 9 ~6×10 10 )∶(1×10 5 ~3×10 6 ).

4. The regulator containing seaweed oligosaccharides according to claim 1, characterized in that The complex amino acids include aspartic acid, glutamic acid, valine and proline.

5. The regulator containing seaweed oligosaccharides according to claim 4, characterized in that The mass ratio of aspartic acid, glutamic acid, valine and proline added in the composite amino acid is 3:(1~3):(1~3):(1~3).

6. The regulator containing seaweed oligosaccharides according to claim 1, characterized in that The invention also comprises 0.5 to 1 parts by weight of chloroindole hydrazide.

7. The regulator containing seaweed oligosaccharides according to claim 1, characterized in that It also includes 2 to 4 parts by weight of brassinolide.

8. Application of a regulator containing seaweed oligosaccharides in improving the germination ability of wheat under the condition of returning straw to the field.

9. The use of the regulator containing seaweed oligosaccharides according to claim 8 in improving the germination ability of wheat under the condition of returning straw to the field, characterized in that: The specific steps include: S1, harvesting rice and scattering the rice stalks into the field; S2, applying any one of the regulators containing seaweed oligosaccharides as described in claims 1-7; S3, soil pH adjustment by liming; S4, plowing the field with straw so that the straw is deeply buried in the field; S5, sowing wheat seeds; S6, field management.

10. The use of the regulator containing seaweed oligosaccharides according to claim 9 in improving the germination ability of wheat under the condition of returning straw to the field, characterized in that: The tillage depth in step S4 is 15-20 cm.

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