A method for preparing a green manure crop anti-freezing solution
By spraying a mixture of propionyl brassinolide and emulsion on green manure crops, the problem of frost damage to green manure crops at low temperatures was solved, achieving a highly efficient cold protection and frost resistance effect, and increasing the yield of fresh grass and soil fertility in the following year.
Patent Information
- Application Number
- CN202310569650.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-05-19
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2043-05-19
AI Technical Summary
Green manure crops are susceptible to frost damage under low temperature conditions, which can lead to slow growth or death and affect the yield of fresh grass in the following year. Existing frost protection measures are time-consuming, labor-intensive and costly.
A mixture of propionyl brassinolide and emulsion at a volume ratio of 5:20 was used as an antifreeze solution. After dilution, it was sprayed on the surface of green manure crops to prevent frost damage and enhance the plants' disease resistance.
Quickly and easily prevent frost damage to green manure crops, increase fresh grass yield in the following year, reduce fertilizer use, enhance plant disease resistance, reduce frost damage rate, and increase economic income.
Smart Images
Figure CN116686835B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of agricultural technology, in particular to a method for preparing a freeze protection solution for green manure crops. BACKGROUND
[0002] Some crops, all or part of the fresh body produced during the growth process, can be directly or indirectly turned into soil as fertilizer; or through their interplanting with main crops, play a role in promoting the growth of main crops, improving soil properties, etc. These crops are called green manure crops, and their fresh bodies are called green manure.
[0003] The existing green manure crop resources are very rich, with more than 1000 varieties of 60 species of 10 families. About 500 varieties are commonly used in production. Green manure varieties are classified by plant taxonomy, including legume and non-legume. Legume green manure mainly includes Astragalus sinicus, Vicia faba, Sesbania cannabina, and Vicia cracca. Non-legume green manure mainly includes radish and ryegrass. Green manure is a complete and high-quality biological fertilizer source. The tender stems and leaves of various green manure contain rich nitrogen, phosphorus, and potassium nutrients, which can decompose in the soil and greatly increase the content of organic matter, nitrogen, phosphorus, potassium, calcium, magnesium, and various trace elements in the soil. According to statistics, every kilogram of green manure fresh grass can provide 6.3 kg of nitrogen, 1.3 kg of phosphorus, and 5 kg of potassium, which is equivalent to 13.7 kg of urea, 6 kg of superphosphate, and 10 kg of potassium sulfate. Long-term positioning tests in the past 20 years have shown that planting and turning over 1200-1600 kg of green manure in rice fields per year can reduce the use of chemical fertilizers by 20-40% for subsequent rice production, increase yield, and significantly improve the quality of agricultural products and soil quality. In summary, winter green manure is a low-cost and high-benefit measure to improve soil and increase land productivity.
[0004] However, green manure crops generally prefer warm temperatures and have poor cold resistance. Low temperatures affect their growth, and when the temperature is below 5℃, they grow slowly, and when the temperature is below 0℃, they are easily damaged by frost, and even die. For example, Astragalus sinicus and Vicia cracca can suffer frost damage to their leaves when the temperature is as low as -3℃, and severe frost damage or partial death occurs at -5℃. When the average winter temperature is relatively low, many green manure crops cannot survive due to low temperature frost damage, and when there is a severe and sustained drop in temperature, the plant's buffer time is too short, and the frost damage is particularly severe. Rain, snow, and freezing weather often occur from mid-January to the end of February, and many green manure crops are slow to recover after the frost damage, severely reducing the fresh grass yield the following year.
[0005] In the case of continuous low temperature weather, green manure crop growers usually let the green manure crops resist the freezing injury naturally. Only a small part of green manure growers will take preventive measures such as applying ash and other warm fertilizers in winter or using ground cover to cover the green manure with rice straw, wheat straw, dry grass, corn stalks, etc. to reduce soil water evaporation and play a role in soil moisture conservation and temperature increase. However, this method requires a large amount of ash, straw and straw, and is time-consuming and labor-intensive. Not only is it difficult to collect a large amount of ash, straw and straw, but it also increases production costs. SUMMARY
[0006] The purpose of the present application is to provide a method for preparing a green manure crop antifreeze solution to solve the problems existing in the prior art. The green manure crop antifreeze solution of the present application can quickly and simply prevent green manure crop freezing injury, can be applied to green manure crops before the temperature drops to prevent cold and frost, ensure the yield of green manure crop the following year, increase soil organic matter, and improve soil fertility, thereby reducing the application of main crop fertilizers.
[0007] To achieve the above purpose, the present application provides the following solutions:
[0008] One of the technical solutions of the present application is a green manure crop antifreeze solution, which comprises propionyl brassinolide and emulsion in a volume ratio of 5:20.
[0009] Further, the emulsion comprises Gantt's original emulsion.
[0010] The second technical solution of the present application is a method for preparing the above-mentioned green manure crop antifreeze solution, comprising the following steps:
[0011] After mixing propionyl brassinolide and emulsion, stir evenly to obtain the green manure crop antifreeze solution.
[0012] The third technical solution of the present application is the application of the above-mentioned green manure crop antifreeze solution in the cold resistance and frost resistance of green manure crops.
[0013] Further, the method of application specifically comprises: when the temperature drops to 0-3℃, dilute the above-mentioned green manure crop antifreeze solution and spray it on the green manure crops.
[0014] Further, the dilution multiple is 800-1000 times.
[0015] Further, the dosage of the green manure crop antifreeze solution is 25mL / acre.
[0016] The present application discloses the following technical effects:
[0017] (1) The green manure crop anti-freezing solution of the present application can quickly and simply prevent the green manure crop from freezing, can quickly act on the green manure crop before the temperature drops suddenly to achieve the effect of cold resistance and frost resistance, can ensure that the fresh grass yield of the green manure returned to the field reaches 1500 kg or more in the next year, can increase the soil organic matter, can fertilize the soil, and can achieve the effect of reducing the application of chemical fertilizers for main crops.
[0018] (2) The present application solves the problem that the green manure crop is prone to freezing damage under the condition of continuous low temperature or extremely low temperature, causing plant death or weak growth of the plant due to freezing damage, thereby leading to dwarfing of the green manure plant and low fresh grass yield in the next year.
[0019] (3) The green manure crop anti-freezing solution of the present application has low cost and remarkable effect of cold resistance and frost resistance.
[0020] (4) In addition to effectively preventing the green manure crop from freezing damage and significantly reducing the freezing damage or mortality, the present application can also enhance the disease resistance of the plant, make the plant grow well as a whole, ensure high fresh grass yield in the next year, return to the field to fertilize the soil, achieve the purpose of reducing the application of chemical fertilizers, protect the agricultural ecology, and improve the economic income.
[0021] (5) The green manure crop anti-freezing solution of the present application is simple to use, can be sprayed by various pesticide sprayers, is convenient to operate, has long range, high efficiency, saves time and effort. BRIEF DESCRIPTION OF DRAWINGS
[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.
[0023] Figure 1 The contrast chart of the lightleaf milkvetch without spraying and spraying the green manure crop anti-freezing solution prepared in Embodiment 1 of the present application, wherein the left chart is spraying and the right chart is without spraying;
[0024] Figure 2 The contrast chart of the evening primrose without spraying and spraying the green manure crop anti-freezing solution prepared in Embodiment 1 of the present application, wherein the left chart is spraying and the right chart is without spraying;
[0025] Figure 3 The contrast chart of the arrow-shaped pea without spraying and spraying the green manure crop anti-freezing solution prepared in Embodiment 1 of the present application, wherein the left chart is spraying and the right chart is without spraying;
[0026] Figure 4 The contrast chart of the rape without spraying and spraying the green manure crop anti-freezing solution prepared in Embodiment 1 of the present application, wherein the left chart is spraying and the right chart is without spraying. DETAILED DESCRIPTION
[0027] The following detailed description of various example embodiments of the application should not be considered to be limiting of the application, but rather a description of certain example aspects, features and embodiments of the application.
[0028] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Additionally, for a range of values, the disclosure herein intends to include each intervening value by the upper limit and lower limit of that range. Each smaller range that falls within the ambit of any stated ranges and any other stated ranges is also included in the application. The upper and lower limits of these smaller ranges can independently be included or excluded in the ranges.
[0029] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. Although preferred methods and materials are described herein, any methods and materials similar or equivalent to those described herein can be used in the practice or testing of the present application. All documents mentioned herein are incorporated by reference to disclose and describe in further detail the methods and / or materials associated with the documents. In the case of conflict between the present specification and any document incorporated herein by reference, the present specification will control.
[0030] Many modifications and variations of the present application described in the detailed description of the application can be made by those skilled in the art, without departing from the scope or spirit of the application. Other implementations of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application. The specification and examples given are exemplary only.
[0031] As used herein, the terms "comprises", "comprising", "includes", "including", "has", "having", and the like are open-ended terms that are intended to mean including, but not limited to.
[0032] The Gannett emulsion used in the following examples of the present application is purchased from (Yinglianjia (Shenzhen) Biotechnology Co., Ltd.).
[0033] The propionyleptin and Gannett emulsion used in the following examples of the present application are sold in the market as a package of liquid state.
[0034] Example 1
[0035] A method for preparing a green manure crop antifreezing solution:
[0036] 5 mL of pure propionyleptin and 20 mL of Gannett emulsion are stirred and mixed uniformly, diluted with water by 800 times, stirred until completely dissolved, to obtain a green manure crop antifreezing solution.
[0037] Example 2
[0038] A method for preparing a green manure crop anti-freezing solution:
[0039] 5 mL of pure brachialin and 20 mL of Gannett original emulsion were stirred and mixed uniformly, diluted with water by 1000 times, stirred until completely dissolved, to obtain a green manure crop anti-freezing solution.
[0040] Effect Example 1
[0041] When the temperature dropped to 0-3℃, the green manure crop anti-freezing solution prepared in Example 1 was sprayed on the green manure crops of Chinese milk vetch, lupine, broad bean and rape (spraying was performed using a sprayer, and the green manure crop anti-freezing solution prepared in Example 1 was sprayed on the leaf surface and the whole branches and trunks of the green manure crops), and the amount of the green manure crop anti-freezing solution prepared in Example 1 was 1 mu.
[0042] When the temperature dropped to -5℃, the frost damage was investigated, the plant height and yield of the green manure crops were counted the next year, and the treatment group without spraying the green manure crop anti-freezing solution was used as a control (CK), the increase of the plant height and yield was calculated, and the results are shown in Table 1.
[0043] Plant height increase = (plant height of the treatment group sprayed with the anti-freezing solution - plant height of the control group without spraying the anti-freezing solution) / plant height of the control group without spraying the anti-freezing solution x 100%;
[0044] Yield increase = (yield of the treatment group sprayed with the anti-freezing solution - yield of the control group without spraying the anti-freezing solution) / yield of the control group without spraying the anti-freezing solution x 100%.
[0045] Table 1 Spraying effect of different green manure crops (2021)
[0046]
[0047] Note: The basic seedlings were obtained according to the same batch of seeds of the same type of crops and uniform sowing amount. The frost damage rate was investigated, the average value of 3 square meters of Chinese milk vetch was converted into mu plant number, the average value of 3 square meters of lupine was converted into mu plant number, and the average value of 3 groups of 30 plants of broad bean and rape was converted into mu plant number.
[0048] As can be seen from Table 1, the frost damage rate of the legume green manure crops of Chinese milk vetch, lupine, broad bean and rape sprayed with the green manure crop anti-freezing solution decreased significantly, and the plant height and fresh grass yield of the next year were significantly higher than those of the control without spraying the anti-freezing solution.
[0049] Compared with the green manure crops without spraying the green manure crop anti-freezing solution, the frost damage rate of the green manure crops sprayed with the green manure crop anti-freezing solution decreased by 6.2-22.2%, the plant height of the next year increased by 9.9-21.2%, and the yield of the green manure crops increased by 21.7-50.8%.
[0050] Effect Example 2
[0051] When the temperature is reduced to 0-3℃, the green manure crop anti-freezing solution prepared by the example 1 of the present application is sprayed on the green manure crops such as green leafy mung bean, evening primrose, arrow-shaped pea and rape (the spraying is performed by using a sprayer and the spraying is performed on the leaf surface and the whole branches and stems of the green manure crops), and the amount of the green manure crop anti-freezing solution prepared by the example 1 of the present application is sprayed on 1 mu of land.
[0052] The next year, the growth of the green manure crops which are not sprayed and sprayed with the green manure crop anti-freezing solution prepared by the example 1 of the present application is compared by taking photos, and the results are shown in Figures 1-4 .
[0053] Figure 1 The comparison chart of the green leafy mung bean which is not sprayed and sprayed with the green manure crop anti-freezing solution prepared by the example 1 of the present application is shown in FIG. 1, wherein the left chart is sprayed and the right chart is not sprayed;
[0054] Figure 2 The comparison chart of the evening primrose which is not sprayed and sprayed with the green manure crop anti-freezing solution prepared by the example 1 of the present application is shown in FIG. 2, wherein the left chart is sprayed and the right chart is not sprayed;
[0055] Figure 3 The comparison chart of the arrow-shaped pea which is not sprayed and sprayed with the green manure crop anti-freezing solution prepared by the example 1 of the present application is shown in FIG. 3, wherein the left chart is sprayed and the right chart is not sprayed;
[0056] Figure 4 The comparison chart of the rape which is not sprayed and sprayed with the green manure crop anti-freezing solution prepared by the example 1 of the present application is shown in FIG. 4, wherein the left chart is sprayed and the right chart is not sprayed.
[0057] As can be seen from Figures 1-4 , the green manure crops sprayed with the green manure crop anti-freezing solution prepared by the example 1 of the present application grow well.
[0058] The above-described examples only describe the preferred modes of the present application, and do not limit the scope of the present application, and various modifications and improvements of the technical solutions of the present application made by the ordinary skilled in the art without departing from the design spirit of the present application shall fall within the protection scope of the present application defined by the claims.
Claims
1. A freeze protection solution for green manure crops, characterized in that, The components include brassinolide and Canola emulsion in a volume ratio of 5:
20.
2. The method of producing the freeze protection solution for green manure crops according to claim 1, characterized by, The method comprises the following steps: The brassinolide and the Canola emulsion are mixed and stirred uniformly to obtain the green manure crop anti-freezing solution.
3. The green manure crop anti-freezing solution of claim 1 is applied to the green manure crop for cold resistance and anti-freezing.
4. Use according to claim 3, characterized in that, The application method specifically comprises: when the air temperature drops to 0-3 DEG C, the green manure crop anti-freezing solution of claim 1 is diluted and sprayed on the green manure crop.
5. Use according to claim 4, characterized in that, The dilution multiple is 800-1000.
6. Use according to claim 4, characterized in that, The dosage of the green manure crop anti-freezing solution is 25 mL per mu.