Straw-strengthening mixed preparation for enhancing lodging resistance of rice and use method of straw-strengthening mixed preparation
By spraying a stalk-strength mixture preparation with a specific ratio, the problems of reduced yield and increased cost caused by rice lodging are solved, and the stem thickening and yield increase are achieved without affecting the differentiation of young ears.
Patent Information
- Application Number
- CN202411947775.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-04-29
AI Technical Summary
Rice lodging often leads to a decrease in yield and increases harvesting and protection costs. Although existing anti-lost methods such as spraying parezole have certain effects, they also affect the spike type and yield.
A stalk-strength mixture preparation that enhances rice anti-pollution, including components such as thiobenone and pareozole. Through specific ratios and spraying methods, the thickness of the pseudostem of seedlings is enhanced, and the thickening of stems and the differentiation of young ears is promoted.
The thickness of rice stems and the number of secondary branch stems was significantly increased, and the number of grains per ear and total yield was increased. At the same time, the inhibitory effect basically disappeared after jointing, without affecting the differentiation of young ears.
Smart Images
Figure CN119896234A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of rice planting, and more particularly to a stalk-strengthening mixed formulation for enhancing the lodging resistance of rice and a use method thereof. Background Art
[0002] Rice lodging is a common phenomenon in the rice planting process. Although there are many high-yield rice varieties, lodging will reduce the yield by 10% to 30%, and in severe cases, it will be more than 50%. At the same time, if there is continuous rain or the water in the field is difficult to drain after the rice lodging, the rice is prone to mold, rot, and sprout due to water accumulation, soaking, and high humidity in the field, and it will partially or completely lose its effectiveness, aggravating the loss; lodging rice is difficult to harvest by machine, and manual harvesting is also labor-intensive and time-consuming, and the labor cost will increase by 2 to 3 times; lodging rice is more susceptible to bird and rodent damage. Commonly used methods for rice lodging resistance include selecting improved varieties, scientific planting and fertilization, but rice varieties with strong lodging resistance will also have lodging problems when facing farmers' pursuit of high yields, such as over-reliance on chemical fertilizers; In order to solve the problem of rice lodging, in addition to fertilizer and water regulation, chemical control (spraying plant growth regulators such as paclobutrazol and succinil) before jointing is often adopted in production to shorten the internodes, reduce plant height, and enhance lodging resistance. This has a certain effect, but it also brings negative effects. That is, as the plant height decreases, the panicle shape becomes smaller accordingly, thus affecting the yield. The main reason is that the jointing of rice and the differentiation of panicles are basically carried out simultaneously. Spraying plant growth regulators such as paclobutrazol and succinil before jointing inhibits gibberellin synthesis and reduces IAA levels. Although it inhibits cell elongation, it also weakens the apical dominance and affects the differentiation of panicles, so the benefits outweigh the benefits. Summary of the invention
[0003] In order to solve the above problems, the present invention provides a stalk-strengthening mixed formulation for enhancing the resistance of rice to lodging and a method for using the same.
[0004] A rice stalk strengthening mixed formulation for enhancing rice lodging resistance, the rice stalk strengthening mixed formulation is in the form of a liquid agent, and comprises, by weight, 1-2 parts of dimethyl sulfoxide, 0.3-1 parts of 97% thidiazuron technical, 1-8 parts of 95% paclobutrazol technical, 3-5 parts of Tween 80 emulsifier, 13-20 parts of isopropylamine alkylbenzene sulfonate, 10-15 parts of MOA-3 emulsifier, 10-15 parts of S-20 emulsifier, 10-15 parts of anhydrous alcohol, 5-10 parts of dilute sulfuric acid, 0.3-0.5 parts of xanthan gum, and 8.5-46.4 parts of water, and also comprises a preparation method of the stalk strengthening mixed formulation, the steps of which are as follows: S1. Put 97% thidiazuron original drug in a blender, add dimethyl sulfoxide and put it in the blender, dissolve 97% thidiazuron original drug, then add Tween 80 emulsifier and isopropylamine alkylbenzene sulfonate in the blender, stir well, and obtain thidiazuron solution; S2. Place 95% paclobutrazol stock in a blender, add anhydrous alcohol and dilute sulfuric acid to the blender to dissolve 95% paclobutrazol stock, then add MOA-3 emulsifier, S-20 emulsifier, and isopropylamine alkylbenzene sulfonate, stir well, and obtain paclobutrazol solution; S3. Place the thidiazuron solution and paclobutrazol solution in a blender according to the ratio, then add water and xanthan gum into the blender, stir thoroughly, and prepare a stable strong rod mixed preparation.
[0005] 2. A rice stalk strengthening mixed formulation for enhancing the resistance to lodging according to claim 1, characterized in that: the Tween 80 emulsifier in step S1 is 3-5 parts by weight and the isopropylamine alkylbenzene sulfonate is 3-5 parts by weight; 3. A rice stalk strengthening mixed formulation for enhancing rice lodging resistance according to claim 1, characterized in that: the MOA-3 emulsifier in step S2 comprises 10-15 parts by mass, the S-20 emulsifier comprises 10-15 parts by mass, and the isopropylamine alkylbenzene sulfonate comprises 10-15 parts by mass.
[0006] 4. A rice stalk strengthening mixed formulation for enhancing rice lodging resistance according to claim 1, characterized in that the stalk strengthening mixed formulation is a mixed solution of a thidiazuron solution and a paclobutrazol solution, wherein the thidiazuron accounts for 0.29-0.97% and the paclobutrazol accounts for 0.95-7.6%.
[0007] 5. A method for using a rice stalk-strengthening mixed formulation for enhancing rice lodging resistance according to any one of claims 1 to 4, characterized in that: before rice transplanting, the stalk-strengthening mixed formulation is diluted with water and sprayed on the rice seedlings, and then the rice seedlings are transplanted to the field. The specification is 28cm*58cm seedling tray, the dosage is 0.2-1g / tray, the specification is 23cm*58cm seedling tray, the dosage is 0.16-0.82g / tray.
[0008] In summary, the present invention includes at least one of the following beneficial technical effects: 1. The ratio of the stem strengthening mixed preparation of the present invention is 0.29-0.97% of thidiazuron and 0.95-7.6% of paclobutrazol. The two are combined with adjuvants, water, etc. in a suitable ratio to form a mixed preparation, and the mixed preparation is sprayed before rice transplanting to make the pseudostem (seedling skeleton) of the seedlings thicker. Based on the thick pseudostem, the thickening of the stems after jointing is more obvious. According to the test, the thickness of the stems is increased by 46.3% compared with the control sprayed with clear water; 2. Spraying the mixed preparation before rice transplanting, the inhibitory effect has basically disappeared by the time the rice joints, and it has no effect on the differentiation of young panicles. On the contrary, due to the thickening of the stems and the increase in the number of large vascular bundles, the number of secondary branches and stalks increased by 37.1% compared with the control group sprayed with clear water, and the number of grains per panicle increased by 43.9 grains compared with the control group sprayed with clear water, which significantly increased the yield; 3. During the maturity period, after spraying the mixed preparation, the leaf sheaths at the base were still green (the stems were elastic), which was more beneficial for lodging resistance. However, after spraying water, the leaf sheaths at the base were dry, and the difference was also obvious. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a schematic diagram of the overall process of the present invention.
[0010] Specific implementation method.
[0011] The following is combined with Figure 1 The present invention is described in further detail.
[0012] A rice stalk strengthening mixed formulation for enhancing rice lodging resistance, the rice stalk strengthening mixed formulation is in the form of a liquid agent, and comprises, by weight, 1-2 parts of dimethyl sulfoxide, 0.3-1 parts of 97% thidiazuron technical, 1-8 parts of 95% paclobutrazol technical, 3-5 parts of Tween 80 emulsifier, 13-20 parts of isopropylamine alkylbenzene sulfonate, 10-15 parts of MOA-3 emulsifier, 10-15 parts of S-20 emulsifier, 10-15 parts of anhydrous alcohol, 5-10 parts of dilute sulfuric acid, 0.3-0.5 parts of xanthan gum, and 8.5-46.4 parts of water, and also comprises a preparation method of the stalk strengthening mixed formulation, the steps of which are as follows: S1. Put 97% thidiazuron original drug in a blender, add dimethyl sulfoxide and put it in the blender, dissolve 97% thidiazuron original drug, then add Tween 80 emulsifier and isopropylamine alkylbenzene sulfonate in the blender, stir well, and obtain thidiazuron solution; S2. Place 95% paclobutrazol stock in a blender, add anhydrous alcohol and dilute sulfuric acid to the blender to dissolve 95% paclobutrazol stock, then add MOA-3 emulsifier, S-20 emulsifier, and isopropylamine alkylbenzene sulfonate, stir well, and obtain paclobutrazol solution; S3. Place the thidiazuron solution and paclobutrazol solution in a blender according to the ratio, then add water and xanthan gum into the blender, stir thoroughly, and prepare a stable strong rod mixed preparation.
[0013] Preferably, the Tween 80 emulsifier in step S1 is 3-5 parts by weight and the isopropylamine alkylbenzene sulfonate is 3-5 parts by weight; Preferably, in step S2, the weight parts of MOA-3 emulsifier, S-20 emulsifier and isopropylamine alkylbenzene sulfonate are 10-15 parts by weight.
[0014] Preferably, the strong stem mixed preparation is a mixed solution of thidiazuron solution and paclobutrazol solution, with thidiazuron accounting for 0.29-0.97% and paclobutrazol accounting for 0.95-7.6%.
[0015] A method for using a stalk-strengthening mixed formulation for enhancing rice lodging resistance comprises the following steps: before rice transplanting, the stalk-strengthening mixed formulation is diluted with water and sprayed on the rice seedlings, and then the rice seedlings are transplanted to the field. For a 28cm*58cm seedling tray, the dosage is 0.2-1g / tray; for a 23cm*58cm seedling tray, the dosage is 0.16-0.82g / tray.
[0016] Example 1 A rice stalk strengthening mixed formulation for enhancing rice lodging resistance, the rice stalk strengthening mixed formulation being in the form of a liquid agent, comprising, by weight, 1 part of dimethyl sulfoxide, 0.3 parts of 97% thidiazuron technical, 1 part of 95% paclobutrazol technical, 3 parts of Tween 80 emulsifier, 13 parts of isopropylamine alkylbenzene sulfonate, 10 parts of MOA-3 emulsifier, 10 parts of S-20 emulsifier, 10 parts of anhydrous alcohol, 5 parts of dilute sulfuric acid, 0.3 parts of xanthan gum, and 46.4 parts of water; This embodiment also provides a method for preparing a strong stem mixed preparation, the steps of which are as follows: S1, placing 0.3 parts of 97% thidiazuron original drug in a blender, adding 1 part of dimethyl sulfoxide in the blender, dissolving 0.3 parts of 97% thidiazuron original drug, and then adding 3 parts of Tween 80 emulsifier and 3 parts of isopropylamine alkylbenzene sulfonate in the blender, stirring well, and obtaining a thidiazuron solution; S2, placing 1 part of 95% paclobutrazol original drug in a blender, adding 10 parts of anhydrous alcohol and 5 parts of dilute sulfuric acid in the blender, dissolving 1 part of 95% paclobutrazol original drug, and then adding 10 parts of MOA-3 emulsifier, 10 parts of S-20 emulsifier, and 10 parts of isopropylamine alkylbenzene sulfonate, stirring well, and obtaining a paclobutrazol solution; S3. Place the thidiazuron solution and paclobutrazol solution in a blender according to the proportion, then add 46.4 parts of water and 0.3 parts of xanthan gum into the blender, stir thoroughly, and prepare a stable strong rod mixed preparation.
[0017] Example 2 A rice stalk strengthening mixed formulation for enhancing rice lodging resistance, wherein the rice stalk strengthening mixed formulation is in the form of a liquid agent, and comprises, by mass, 1.4 parts of dimethyl sulfoxide, 0.6 parts of 97% thidiazuron technical, 3 parts of 95% paclobutrazol technical, 3.5 parts of Tween 80 emulsifier, 15.5 parts of isopropylamine alkylbenzene sulfonate, 12 parts of MOA-3 emulsifier, 12 parts of S-20 emulsifier, 12 parts of anhydrous alcohol, 7 parts of dilute sulfuric acid, 0.35 parts of xanthan gum, and 32.65 parts of water; This embodiment also provides a method for preparing a strong stem mixed preparation, the steps of which are as follows: S1, placing 0.6 parts of 97% thidiazuron original drug in a blender, adding 1.4 parts of dimethyl sulfoxide in the blender, dissolving 0.6 parts of 97% thidiazuron original drug, and then adding 3.5 parts of Tween 80 emulsifier and 3.5 parts of isopropylamine alkylbenzene sulfonate in the blender, stirring well, and obtaining a thidiazuron solution; S2, put 3 parts of 95% paclobutrazol original drug in a blender, add 12 parts of anhydrous alcohol and 7 parts of dilute sulfuric acid in the blender, dissolve 3 parts of 95% paclobutrazol original drug, then add 12 parts of MOA-3 emulsifier, 12 parts of S-20 emulsifier, 12 parts of isopropylamine alkylbenzene sulfonate, stir well, and obtain paclobutrazol solution; S3. Place the thidiazuron solution and paclobutrazol solution in a blender according to the proportion, then add 32.65 parts of water and 0.35 parts of xanthan gum into the blender, stir thoroughly, and prepare a stable strong rod mixed preparation.
[0018] Example 3 A rice stalk strengthening mixed formulation for enhancing rice lodging resistance, wherein the rice stalk strengthening mixed formulation is in the form of a liquid agent, and comprises, by weight, 1.6 parts of dimethyl sulfoxide, 0.8 parts of 97% thidiazuron technical, 6 parts of 95% paclobutrazol technical, 4 parts of Tween 80 emulsifier, 18 parts of isopropylamine alkylbenzene sulfonate, 14 parts of MOA-3 emulsifier, 14 parts of S-20 emulsifier, 14 parts of anhydrous alcohol, 9 parts of dilute sulfuric acid, 0.4 parts of xanthan gum, and 18.2 parts of water; This embodiment also provides a method for preparing a strong stem mixed preparation, the steps of which are as follows: S1, placing 0.8 parts of 97% thidiazuron original drug in a blender, adding 1.6 parts of dimethyl sulfoxide in the blender, dissolving 0.8 parts of 97% thidiazuron original drug, and then adding 4 parts of Tween 80 emulsifier and 4 parts of isopropylamine alkylbenzene sulfonate in the blender, stirring well, and obtaining a thidiazuron solution; S2, put 6 parts of 95% paclobutrazol original drug in a blender, add 14 parts of anhydrous alcohol and 9 parts of dilute sulfuric acid in the blender, dissolve 6 parts of 95% paclobutrazol original drug, then add 14 parts of MOA-3 emulsifier, 14 parts of S-20 emulsifier, 14 parts of isopropylamine alkylbenzene sulfonate, stir well, and obtain paclobutrazol solution; S3. Place the thidiazuron solution and paclobutrazol solution in a blender according to the ratio, then add 18.2 parts of water and 0.4 parts of xanthan gum into the blender, stir thoroughly, and prepare a stable strong rod mixed preparation.
[0019] Example 4 A rice stalk strengthening mixed formulation for enhancing rice lodging resistance, wherein the rice stalk strengthening mixed formulation is in the form of a liquid agent, and comprises, by mass, 2 parts of dimethyl sulfoxide, 1 part of 97% thidiazuron technical, 8 parts of 95% paclobutrazol technical, 5 parts of Tween 80 emulsifier, 20 parts of isopropylamine alkylbenzene sulfonate, 15 parts of MOA-3 emulsifier, 15 parts of S-20 emulsifier, 15 parts of anhydrous alcohol, 10 parts of dilute sulfuric acid, 0.5 parts of xanthan gum, and 8.5 parts of water; This embodiment also provides a method for preparing a strong stem mixed preparation, the steps of which are as follows: S1. Place 1 part of 97% thidiazuron original drug in a blender, add 2 parts of dimethyl sulfoxide and place them in the blender, dissolve 1 part of 97% thidiazuron original drug, then add 5 parts of Tween 80 emulsifier and 5 parts of isopropylamine alkylbenzene sulfonate in the blender, stir well, and obtain a thidiazuron solution; S2, put 8 parts of 95% paclobutrazol original drug in a blender, add 15 parts of anhydrous alcohol and 10 parts of dilute sulfuric acid in the blender, dissolve 8 parts of 95% paclobutrazol original drug, then add 15 parts of MOA-3 emulsifier, 15 parts of S-20 emulsifier, 15 parts of isopropylamine alkylbenzene sulfonate, stir well, and obtain paclobutrazol solution; S3. Place the thidiazuron solution and paclobutrazol solution in a blender according to the ratio, then add 8.5 parts of water and 0.5 parts of xanthan gum into the blender, stir thoroughly, and prepare a stable strong rod mixed preparation.
[0020] Comparative Example 1 The same batch of rice seedlings as in Examples 1 and 2 were sprayed with clean water before transplanting and transplanted to the same field at the same time. The planting specifications, density, basic seedlings, and fertilizer and water management were consistent with those in Examples 1 and 2.
[0021] Comparative Example 2 The same batch of rice seedlings as in Examples 3 and 4 were sprayed with clean water before transplanting and transplanted to the same field at the same time. The planting specifications, density, basic seedlings, and fertilizer and water management were consistent with those in Examples 3 and 4.
[0022] The following conclusions were drawn by analyzing the embodiments and comparative examples in the table: 1. The ratio of the stem strengthening mixed preparation is 0.29-0.97% of Thidiazuron and 0.95-7.6% of Paclobutrazol. The two are combined with adjuvants and water in a suitable ratio to form a mixed preparation. The mixed preparation is sprayed before rice transplanting to make the pseudostem (seedling skeleton) of the seedlings thicker. Based on the thick pseudostem, the thickening of the stems after jointing is more obvious. According to the test, the thickness of the stems is increased by 46.3% compared with the control sprayed with clear water; 2. Spraying the mixed preparation before rice transplanting, the inhibitory effect has basically disappeared by the time the rice joints, and it has no effect on the differentiation of young panicles. On the contrary, due to the thickening of the stems and the increase in the number of large vascular bundles, the number of secondary branches and stalks increased by 37.1% compared with the control group sprayed with clear water, and the number of grains per panicle increased by 43.9 grains compared with the control group sprayed with clear water, which significantly increased the yield; 3. During the maturity period, after spraying the mixed preparation, the leaf sheaths at the base were still green (the stems were elastic), which was more beneficial for lodging resistance. However, after spraying water, the leaf sheaths at the base were dry, and the difference was also obvious.
[0023] The above are all preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereto. Therefore, any equivalent changes made according to the principles, components, proportions, and methods of the present invention should be included in the protection scope of the present invention.
Claims
1. A rice stalk strengthening mixed formulation for enhancing rice lodging resistance, wherein the rice stalk strengthening mixed formulation is in the form of a liquid formulation, characterized in that: The composition comprises, by weight, 1-2 parts of dimethyl sulfoxide, 0.3-1 parts of 97% thidiazuron technical, 1-8 parts of 95% paclobutrazol technical, 3-5 parts of Tween 80 emulsifier, 13-20 parts of isopropylamine alkylbenzene sulfonate, 10-15 parts of MOA-3 emulsifier, 10-15 parts of S-20 emulsifier, 10-15 parts of anhydrous alcohol, 5-10 parts of dilute sulfuric acid, 0.3-0.5 parts of xanthan gum, and 8.5-46.4 parts of water, and also comprises a method for preparing a strong stem mixed preparation, the steps of which are as follows: S1. Put 97% thidiazuron original drug in a blender, add dimethyl sulfoxide and put it in the blender, dissolve 97% thidiazuron original drug, then add Tween 80 emulsifier and isopropylamine alkylbenzene sulfonate in the blender, stir well, and obtain thidiazuron solution; S2. Place 95% paclobutrazol stock in a blender, add anhydrous alcohol and dilute sulfuric acid to the blender to dissolve 95% paclobutrazol stock, then add MOA-3 emulsifier, S-20 emulsifier, and isopropylamine alkylbenzene sulfonate, stir well, and obtain paclobutrazol solution; S3. Place the thidiazuron solution and paclobutrazol solution in a blender according to the ratio, then add water and xanthan gum into the blender, stir thoroughly, and prepare a stable strong rod mixed preparation.
2. The rice stalk strengthening mixed formulation for enhancing rice lodging resistance according to claim 1, characterized in that: The mass parts of Tween 80 emulsifier and isopropylamine alkylbenzene sulfonate in step S1 are 3-5 parts by mass.
3. The rice stalk strengthening mixed formulation for enhancing rice lodging resistance according to claim 1, characterized in that: In the step S2, the weight parts of MOA-3 emulsifier, S-20 emulsifier and isopropylamine alkylbenzene sulfonate are 10-15 parts.
4. The rice stalk strengthening mixed formulation for enhancing rice lodging resistance according to claim 1, characterized in that: The stem strengthening compound is a mixed solution of a thidiazuron solution and a paclobutrazol solution, wherein the thidiazuron accounts for 0.29-0.97% and the paclobutrazol accounts for 0.95-7.6%.
5. A method for using a rice stalk strengthening mixed formulation for enhancing rice lodging resistance according to any one of claims 1 to 4, characterized in that: Before transplanting rice, add water to the mixed preparation of strong stems, spray it on the seedlings, and then transplant the seedlings to the field. The specification is 28cm*58cm seedling tray, the dosage is 0.2-1g / tray, the specification is 23cm*58cm seedling tray, the dosage is 0.16-0.82g / tray.