Novel method for increasing yield of rape

Abstract

The invention relates to application of a composition in yield increase of oilseed rape. The composition is added into water and comprises the following components in percentage by weight: 90-99% of betaine and 1-10% of astragalus extract powder, the concentration of a composition aqueous solution is 0.01-5wt%, the composition is sprayed in the seedling stage and the bud stage of the rape, the yield of the rape can be remarkably increased, and the method is a novel method for increasing the yield of the rape, which is simple and easy to implement.

Description

Technical Field

[0001] This invention relates to the application of a composition in increasing rapeseed yield. The composition is a synergistic combination of betaine and astragalus extract powder, which can significantly improve rapeseed yield and oil content. Background Technology

[0002] Rapeseed (Brassica napus L.) is China's fifth largest crop and largest oilseed crop. As a major source of edible vegetable oil, rapeseed accounts for approximately 50% of the oil yield of domestic oilseed crops. China is a traditional major rapeseed grower and consumer of vegetable oil, but it still lags behind world standards, and its market demand has long relied on imports. Therefore, this invention proposes a new method to significantly increase rapeseed yield that is simple, easy to implement, and low in cost.

[0003] Betaine (also known as glycine betaine) is a quaternary ammonium alkaloid, soluble in water, methanol, and ethanol. As a natural plant-derived component, betaine has the advantages of being safe, green, non-toxic, and pollution-free, and is already in large-scale synthetic production at a low price. Studies show that betaine has multiple functions, including maintaining cell osmotic pressure, increasing salt tolerance, providing methyl donors, enhancing crop nitrogen fertilizer utilization, and improving crop stress resistance.

[0004] Astragalus is the dried root of Astragalus mongholicus or Astragalus membranaceus, both belonging to the legume family. It contains a variety of active ingredients such as astragalus polysaccharides, astragaloside A, acetylastragaloside saponins, verbascoside isoflavones, and trace elements. It has multiple functions such as enhancing photosynthesis, promoting nitrogen and phosphorus absorption in crops, and antibacterial and antioxidant effects.

[0005] This study is the first to discover that the combination of betaine and astragalus extract powder has a good synergistic effect, which can significantly promote the growth and yield of rapeseed. It also has the advantages of high cost performance and good biosafety, and can be widely used in rapeseed cultivation. Summary of the Invention

[0006] The purpose of this invention is to provide a novel composition (a synergistic composition of betaine and astragalus extract powder) for application in rapeseed cultivation to significantly increase rapeseed yield and oil content. The betaine is glycine betaine, also known as N,N,N-trimethylglycine.

[0007] The aforementioned Astragalus extract powder is a dry extract powder obtained by decoction of Astragalus with water (Astragalus to water weight ratio of 1:10) (1 hour, 2 times), followed by vacuum concentration and spray drying, or a similar extract containing Astragalus effective components.

[0008] The composition is formulated in the following proportions (by weight): betaine 90%-99% and astragalus extract powder 1%-10%.

[0009] In the preferred embodiment, the ratio is (by weight percentage): betaine 93% and astragalus extract powder 7%.

[0010] A new method for increasing rapeseed yield involves adding the aforementioned composition to the watering or fertilization (fertigation) of rapeseed, wherein the concentration of the aqueous solution of the composition is from 0.01 wt% to 5 wt%.

[0011] The present invention also includes the use of any of the compositions described herein in any rapeseed cultivation-related products or compositions.

[0012] 1. Rapeseed cultivation An experimental rapeseed planting site was set up, with a normal water control group and several experimental groups. The experimental groups received a compound solution when watering or fertilizing the rapeseed (using fertigation). The compound solution was formulated (by weight percentage): 90%-99% betaine and 1%-10% astragalus extract powder. The concentration of the aqueous solution was 0.01wt% to 5wt%. The experimental groups were treated during the seedling and budding stages of the rapeseed, spraying the roots and leaves. Rapeseed cultivation and watering / fertilization management practices remained consistent with local routine practices. At harvest, the rapeseed yield and oil content of each group were measured.

[0013] 2. Determination of oil content in rapeseed The oil content of rapeseed was analyzed using a Bird DA7200 near-infrared quality analyzer, with each group being repeated three times.

[0014] This study found that the synergistic combination of betaine and astragalus extract powder can significantly increase rapeseed yield and oil content, and can be widely applied in rapeseed cultivation. Detailed Implementation

[0015] Example 1 Rapeseed was planted from October 2024 to May 2025 at an experimental base in Jingzhou City, Hubei Province. The variety used was Zhongyou 516 (Brassica napus type). The experimental site included a normal control group and three experimental groups, each with a planting area of ​​150 m². 2Each treatment was repeated three times. The fertilizer application rates were the same for all treatments: 40 kg / mu of compound fertilizer (N-P2O5-K2O: 15-15-15) + 1 kg / mu of boron fertilizer was applied as basal fertilizer; 10 kg / mu of urea was applied as topdressing during the seedling stage; and 25 kg / mu of compound fertilizer (15-15-15) was applied as topdressing during the budding and bolting stages. The rapeseed in the experiment was not bolted. In the experimental groups, a mixture of 1 (91% betaine + 9% astragalus extract powder) was added to the irrigation water. The concentrations of the aqueous solution of the mixture were 0.2 wt% (group 1), 0.6 wt% (group 2), and 1.0 wt% (group 3), respectively. The mixture was sprayed once each during the seedling and budding stages, using 80 kg / mu of water each time. The control group was irrigated with plain water. Rapeseed cultivation and irrigation / fertilization management measures were consistent with local routine management. At harvest, the rapeseed yield and oil content of each group were measured (results are shown in Table 1).

[0016] Example 2 The rapeseed planting time, location, and variety were the same as in Example 1. The experimental site included a normal control group (same as in Example 1) and three experimental groups, each with a planting area of ​​150m². 2 Each treatment was repeated three times. The fertilizer dosage and type were the same for all treatments as in Example 1. In the experimental groups, Composition 2 (92% betaine + 8% astragalus extract powder) was added to the rapeseed irrigation water. The concentrations of the aqueous solution of the composition were 0.2 wt% (Experimental Group 1), 0.6 wt% (Experimental Group 2), and 1.0 wt% (Experimental Group 3), respectively. It was sprayed once each during the seedling and budding stages, with 80 kg / mu of water used each time. The control group was irrigated with plain water. Rapeseed cultivation and irrigation / fertilization management measures were consistent with local routine management. At rapeseed harvest, the rapeseed yield and oil content of each group were measured (results are shown in Table 1).

[0017] Example 3 The rapeseed planting time, location, and variety were the same as in Example 1. The experimental site included a normal control group (same as in Example 1) and three experimental groups, each with a planting area of ​​150m². 2 Each treatment was repeated three times. The fertilizer dosage and type were the same for all treatments as in Example 1. In the experimental groups, Composition 2 (93% betaine + 7% astragalus extract powder) was added to the rapeseed irrigation water. The concentrations of the aqueous solution of the composition were 0.2 wt% (Experimental Group 1), 0.6 wt% (Experimental Group 2), and 1.0 wt% (Experimental Group 3), respectively. It was sprayed once each during the seedling and budding stages, with 80 kg / mu of water used each time. The control group was irrigated with plain water. Rapeseed cultivation, irrigation, and fertilization management measures were consistent with local routine management. At rapeseed harvest, the rapeseed yield and oil content of each group were measured (results are shown in Table 1).

[0018] Example 4 The rapeseed planting time, location, and variety were the same as in Example 1. The experimental site included a normal control group (same as in Example 1) and three experimental groups, each with a planting area of ​​150m². 2Each treatment was repeated three times. The fertilizer dosage and type were the same for all treatments as in Example 1. In the experimental groups, Composition 2 (94% betaine + 6% astragalus extract powder) was added to the rapeseed irrigation water. The concentrations of the aqueous solution of the composition were 0.2 wt% (Experimental Group 1), 0.6 wt% (Experimental Group 2), and 1.0 wt% (Experimental Group 3), respectively. It was sprayed once each during the seedling and budding stages, with 80 kg / mu of water used each time. The control group was irrigated with plain water. Rapeseed cultivation, irrigation, and fertilization management measures were consistent with local routine management. At rapeseed harvest, the rapeseed yield and oil content of each group were measured (results are shown in Table 1).

[0019] Example 5 The rapeseed planting time, location, and variety were the same as in Example 1. The experimental site included a normal control group (same as in Example 1) and three experimental groups, each with a planting area of ​​150m². 2 Each treatment was repeated three times. The fertilizer dosage and type were the same for all treatments as in Example 1. In the experimental groups, Composition 2 (95% betaine + 5% astragalus extract powder) was added to the rapeseed irrigation water. The concentrations of the aqueous solution of the composition were 0.2 wt% (Experimental Group 1), 0.6 wt% (Experimental Group 2), and 1.0 wt% (Experimental Group 3), respectively. It was sprayed once each during the seedling and budding stages, with 80 kg / mu of water used each time. The control group was irrigated with plain water. Rapeseed cultivation and irrigation / fertilization management measures were consistent with local routine management. At rapeseed harvest, the rapeseed yield and oil content of each group were measured (results are shown in Table 1).

[0020] Example 6 The rapeseed planting time, location, and variety were the same as in Example 1. The experimental site included a normal control group (same as in Example 1) and three experimental groups, each with a planting area of ​​150m². 2 Each treatment was repeated three times. The fertilizer dosage and type were the same for all treatments as in Example 1. In the experimental groups, Composition 2 (97% betaine + 3% astragalus extract powder) was added to the rapeseed irrigation water. The concentrations of the aqueous solution of the composition were 0.2 wt% (Experimental Group 1), 0.6 wt% (Experimental Group 2), and 1.0 wt% (Experimental Group 3), respectively. It was sprayed once each during the seedling and budding stages, with 80 kg / mu of water used each time. The control group was irrigated with plain water. Rapeseed cultivation and irrigation / fertilization management measures were consistent with local routine management. At rapeseed harvest, the rapeseed yield and oil content of each group were measured (results are shown in Table 1).

[0021] Example 7 The rapeseed planting time, location, and variety were the same as in Example 1. The experimental site included a normal control group (same as in Example 1) and three experimental groups, each with a planting area of ​​150m². 2Each treatment was repeated three times. The fertilizer dosage and type were the same for all treatments as in Example 1. In the experimental groups, only betaine was added to the rapeseed irrigation water. The concentrations of the betaine aqueous solution were 0.2 wt% (Experimental Group 1), 0.6 wt% (Experimental Group 2), and 1.0 wt% (Experimental Group 3), respectively. It was sprayed once each during the seedling and budding stages, with 80 kg / mu of water used each time. The control group was irrigated with plain water. Rapeseed cultivation, irrigation, and fertilization management measures were consistent with local routine management. At rapeseed harvest, the rapeseed yield and oil content of each group were measured (results are shown in Table 1).

[0022] Example 8 The rapeseed planting time, location, and variety were the same as in Example 1. The experimental site included a normal control group (same as in Example 1) and three experimental groups, each with a planting area of ​​150m². 2 Each treatment was repeated three times. The fertilizer dosage and type were the same for all treatments as in Example 1. In the experimental groups, only Astragalus extract powder was added to the rapeseed irrigation water. The concentrations of the Astragalus extract powder aqueous solution were 0.01 wt% (Experimental Group 1), 0.04 wt% (Experimental Group 2), and 0.07 wt% (Experimental Group 3), respectively. It was sprayed once each during the seedling and budding stages, with 80 kg / mu of water used each time. The control group was irrigated with plain water. Rapeseed cultivation, irrigation, and fertilization management measures were consistent with local routine management. At rapeseed harvest, the rapeseed yield and oil content of each group were measured (results are shown in Table 1).

[0023] Table 1 Experimental Results of Examples

[0024]

[0025] As shown in Table 1, the synergistic combination of betaine and astragalus extract powder can significantly increase rapeseed yield. The preferred composition (Experimental Group 2 of Example 3) increased rapeseed yield by 24.6% per mu compared to the control group, while under the same conditions, the use of betaine alone (Experimental Group 2 of Example 7) increased yield by 9.0% compared to the control group, and the use of astragalus extract powder alone (Experimental Group 2 of Example 8) increased yield by 5.5% compared to the control group.

[0026] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A composition for promoting rapeseed growth and increasing yield, characterized in that, The composition includes betaine and astragalus extract powder.

2. The composition for promoting rapeseed growth and increasing yield according to claim 1, characterized in that, Betaine, also known as glycine betaine or N,N,N-trimethylglycine.

3. The composition for promoting rapeseed growth and increasing yield according to claim 1, characterized in that, Astragalus extract powder is a dry extract powder obtained by concentrating and drying the effective components of Astragalus membranaceus after boiling it with water, or similar extracts containing the effective components of Astragalus membranaceus.

4. The composition for promoting rapeseed growth and increasing yield according to claim 1, characterized in that, Its formula (by weight percentage) is: betaine 90-99%, astragalus extract powder 1-10%.

5. The composition for promoting rapeseed growth and increasing yield according to claim 4, characterized in that, Its preferred weight percentages are: 93% betaine and 7% astragalus extract powder.

6. A novel method for increasing rapeseed yield, comprising the application of the composition according to any one of claims 1-5 in rapeseed cultivation.

7. The new method for increasing rapeseed yield according to claim 6, characterized in that, The composition according to claims 1-5 is added to the watering or fertilization (fertigation) of rapeseed, wherein the concentration of the aqueous solution of the composition is from 0.01 wt% to 5 wt%.

8. The new method for increasing rapeseed yield according to claim 6 or 7, characterized in that, Increase rapeseed yield and oil content.

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