Liquid fertilizer for increasing the yield of tubers and bulbils of pinellia and preparation method thereof

Abstract

The invention discloses a liquid fertilizer for increasing the yield of tubers and bulbils of pinellia ternata and a preparation method thereof, belonging to the technical field of liquid fertilizers. The liquid fertilizer comprises 10-15 mmol / L of phenylalanine, 20-30 g / L of wood vinegar, 8-10 g / L of seaweed extract, 5-10 g / L of potassium humate, 0.5-1 g / L of boric acid, 8-12 g / L of a preservative and 2-8 g / L of a suspension stabilizer according to concentration; the phenylalanine can promote plant cell separation and elongation, thereby regulating the growth and development process of crops; at a concentration of 10-15 mmol / L of phenylalanine, the pinellia ternata exhibits obvious agronomic trait advantages, the morphology of the tubers and bulbils is improved, the weight is increased, and the tubers and bulbils are fuller, the speed at which the bulbils develop into offspring pinellia ternata can be promoted, the yield of the pinellia ternata is increased, and the market competitiveness and economic benefits are enhanced.

Description

Technical Field

[0001] The invention belongs to the technical field of liquid fertilizers, and in particular relates to a liquid fertilizer for increasing the yield of tubers and bulbils of pinellia ternata and a preparation method thereof. Background Art

[0002] As an important traditional Chinese medicine, the main propagation methods of Pinellia ternata include seed propagation, tuber propagation and bulbil propagation. However, the natural fruiting rate of seeds is low, and there is a contradiction between the medicinal value and the need for seed preservation in tuber propagation. Therefore, finding a propagation method that can ensure the yield of Pinellia ternata while maintaining its medicinal value has become the focus of research and development.

[0003] During the research, it was found that a single tuber can produce multiple bulbils within a year, and the bulbils have the characteristics of fast germination speed, high germination rate and rapid growth, which provides the possibility for the rapid reproduction of Pinellia ternata.

[0004] However, in the traditional cultivation process, Pinellia ternata encounters problems of slow tuber growth and poor bulbil development. These problems limit the large-scale production and market supply of Pinellia ternata, and affect the full realization of its economic benefits and medicinal value.

[0005] In the prior art, nitrogen plays an important role in the growth, development, yield and quality of medicinal plants. Organic nitrogen fertilizer has limited effect on the growth of Pinellia ternata. Lack of nitrogen will lead to slow growth of the tubers and poor development of bulbils. Excessive application of chemical nitrogen fertilizer will not only lead to decreased nitrogen utilization efficiency and increased production costs, but also easily cause ecological environmental pollution and other problems, which will have an adverse effect on the yield and medicinal quality of medicinal materials.

[0006] In addition, the application of brassinolide can promote the formation of tubers and bulbils in Pinellia ternata. However, as a plant growth regulator, brassinolide has a complex production process and is difficult to purify, so the cost is relatively high.

[0007] The above problems limit the large-scale production and market supply of Pinellia ternata, affecting the full realization of its economic benefits and medicinal value. Therefore, how to increase the yield of Pinellia ternata tubers and bulbils and increase the income of farmers while avoiding excessive fertilization is an urgent problem to be solved in Pinellia ternata production technology. Summary of the invention

[0008] The purpose of the present invention is to provide a liquid fertilizer for increasing the yield of tubers and bulbils of pinellia ternata and a preparation method thereof. In the process of planting pinellia ternata, by applying liquid fertilizer containing phenylalanine at a concentration of 10-15 mmol / L, a preservative and other components, the weight of tubers and bulbils is increased and their morphology is improved, and the bulbils are made to mature faster and enter the next life cycle, so that more pinellia ternata plants are obtained within a certain planting cycle, thereby increasing the yield of tubers and bulbils of pinellia ternata as a whole, avoiding pollution caused by chemical nitrogen fertilizers and increasing the income of medicinal herb farmers.

[0009] The purpose of the present invention can be achieved through the following technical solutions:

[0010] A liquid fertilizer for increasing the yield of tubers and bulbils of pinellia ternata, comprising the following components in terms of concentration:

[0011] Phenylalanine 10-15mmol / L, wood vinegar 20-30g / L, algae extract 8-10g / L, potassium humate 5-10g / L, boric acid 0.5-1g / L, preservative 8-12g / L, suspension stabilizer 2-8g / L.

[0012] Furthermore, the storage agent is prepared by the following steps:

[0013] A 20% by mass potassium hydroxide aqueous solution, sodium alginate and acrylic acid are added to a reactor, and the mixture is stirred at 200-300 r / min for 5-10 min. Then, acrylamide, 2-acrylamide-2-methylpropanesulfonic acid and deionized water are evenly mixed and added to the reactor, and the stirring is continued for 10-15 min. A 0.25% by mass N,N'-methylenebisacrylamide aqueous solution is added at 50-55° C. and stirred for 5-8 min. Then, modified composite zeolite powder and a 1.6% by mass ammonium persulfate aqueous solution are added. After ultrasonic dispersion for 15-20 min, the mixture is stirred and reacted at 70-75° C. for 2.5-3 h. The product is washed with anhydrous ethanol for 2-3 times, vacuum dried, crushed, and sieved through a 100-mesh sieve to obtain a storage agent.

[0014] Furthermore, the dosage ratio of potassium hydroxide aqueous solution, sodium alginate, acrylic acid, acrylamide, 2-acrylamide-2-methylpropanesulfonic acid, deionized water, N,N'-methylenebisacrylamide aqueous solution, modified composite zeolite powder and ammonium persulfate aqueous solution is 10mL: 0.5-0.8g: 3.5-4mL: 1g: 1g: 10-12mL: 5mL: 1.2g: 5mL.

[0015] Furthermore, the suspension stabilizer is sodium carboxymethyl cellulose.

[0016] Further, the modified composite zeolite powder is prepared by the following steps:

[0017] Step 1: dissolving ammonium cerium nitrate with deionized water and adding it to a reactor with zeolite powder, ultrasonically dispersing for 15-20 minutes, then adding 1,4-phthalic acid, N,N-dimethylformamide and anhydrous formic acid to the reactor, stirring and reacting for 15-20 minutes at 100-105° C. and 800-1000 r / min, suction filtering, centrifugally washing the filter cake with acetone for 2-3 times, and vacuum drying to obtain composite zeolite powder;

[0018] Step 2: Add the composite zeolite powder, tannic acid and deionized water into a reaction kettle, stir for 8-10 minutes at 20-25° C. and 300-500 r / min, centrifuge and filter, wash the filter cake with deionized water for 2-3 times, and vacuum dry to obtain a modified composite zeolite powder.

[0019] Furthermore, in step 1, the usage ratio of ammonium cerium nitrate, deionized water, 1,4-phthalic acid, N,N-dimethylformamide, zeolite powder and anhydrous formic acid is 3-3.5 g: 10-12 mL: 1.25-1.3 g: 35-40 mL: 2.5-3 g: 1-1.2 mL.

[0020] Furthermore, in step 2, the usage ratio of the composite zeolite powder, tannic acid and deionized water is 1 g: 3-5 g: 800-1000 mL.

[0021] A method for preparing a liquid fertilizer for increasing the yield of tubers and bulbils of Pinellia ternata comprises the following steps:

[0022] Add boric acid and water into a stirring kettle, stir at 200-300r / min for 5-10min, then add wood vinegar, seaweed, potassium humate and phenylalanine into the stirring kettle, continue stirring for 10-15min, then add a preservative and a suspension stabilizer into the reactor, continue stirring for 20-30min, finally add water to make up the volume, and obtain a liquid fertilizer for increasing the yield of tubers and bulbils of Pinellia ternata.

[0023] Beneficial effects of the present invention:

[0024] 1. The liquid fertilizer for improving the yield of tubers and bulbils of Pinellia ternata of the present invention contains components such as phenylalanine and wood vinegar. Phenylalanine, as a nitrogen source, can promote plant cell separation and elongation, thereby regulating the growth and development process of crops. Under 10-15mmol / L concentration of phenylalanine, Pinellia ternata shows obvious agronomic trait advantages, the weight of tubers and bulbils increases, and the morphology is also fuller, which ensures its medicinal value, helps medicinal material processing enterprises to obtain higher quality Pinellia ternata raw materials, and promotes the development of the traditional Chinese medicine industry.

[0025] The liquid fertilizer of the present invention also significantly promotes the development of the bulbils of Pinellia ternata, so that the bulbils can mature faster and enter the next life cycle, thereby increasing the reproduction speed of Pinellia ternata, and more Pinellia ternata plants can be obtained within a certain planting cycle, thereby increasing the yield of Pinellia ternata tubers and bulbils as a whole, which is beneficial for medicinal farmers to increase their income, expand their market share and enhance their market competitiveness.

[0026] 2. Among the other components of liquid fertilizer, wood vinegar helps to adjust the pH value of soil, promote the decomposition of organic matter, and improve soil fertility; seaweed contains helps to promote root development and improve the plant's ability to absorb water and nutrients; potassium humate helps to improve the soil's ability to retain water and fertilizer and improve plant resistance to stress; boric acid can improve the plant's resistance to abiotic stresses such as drought, salinity, and high temperature, and reduce the occurrence of diseases; suspension stabilizers can improve the stability of liquid fertilizers, reduce the occurrence of stratification during storage or transportation, and help improve the quality of liquid fertilizers.

[0027] 3. The present invention uses zeolite powder as a matrix, and generates cerium-doped metal organic framework particles in situ on the zeolite surface by hydrothermal synthesis, thereby increasing the specific surface area of ​​the composite zeolite powder. The composite zeolite powder is modified by tannic acid, and the acid etching and chelation of tannic acid react with the metal atoms in the metal organic framework particles to form a tannic acid coating layer on the surface of the composite zeolite powder, introducing a large number of hydroxyl groups, and further improving the hydrophilicity of the modified composite zeolite. The prepared composite zeolite powder has a good adsorption effect on phenylalanine, which helps to reduce the loss of phenylalanine.

[0028] The modified composite zeolite powder acts as a physical cross-linking agent to react with other monomers, improving the cross-linking degree and stability of the accumulator. It can also improve the porosity and connectivity inside the accumulator through dispersion and filling, which helps to increase the looseness and water absorption effect of the accumulator. After absorbing water, the accumulator has a large number of holes or chambers, which improves the soil structure, increases the air permeability of the soil and the fertilization effect on phenylalanine, helps to prolong the time that the soil maintains a specific concentration of phenylalanine, and further improves the effect of phenylalanine on the growth of Pinellia ternata at a concentration of 10-15mmol / L.

[0029] 4. The present invention proposes an effective solution to the key problem in the reproduction of Pinellia ternata - poor bulbil development. By applying liquid fertilizer, the rapid development and maturation of bulbils are promoted, which not only increases the yield of Pinellia ternata, but also maintains its medicinal value.

[0030] The application method of this liquid fertilizer is simple and easy, cost-effective, and has broad market application prospects. It makes full use of the biological characteristics of Pinellia ternata itself, and through scientific management and technical means, it achieves a dual increase in the yield and quality of Pinellia ternata. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention will be further described below in conjunction with the accompanying drawings.

[0032] Figure 1 This is a graph showing the performance results of Pinellia ternata in the field in the application example of the present invention;

[0033] Figure 2 This is a diagram showing the morphological results of the Pinellia ternata plant in the application example of the present invention;

[0034] Figure 3 This is a graph showing the morphological results of the tuber of Pinellia ternata in the application example of the present invention;

[0035] Figure 4 This is a result diagram of the bulbil morphology of Pinellia ternata in the application example of the present invention;

[0036] Figure 5 This is a chart showing changes in agronomic traits of Pinellia ternata in an application example of the present invention. DETAILED DESCRIPTION

[0037] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0038] Example 1: This example provides a liquid fertilizer for increasing the yield of tubers and bulbils of Pinellia ternata, which is prepared by the following steps:

[0039] S1: 6 kg of ammonium cerium nitrate was dissolved in 20 L of deionized water and added to a reactor with 5 kg of zeolite powder. The mixture was ultrasonically dispersed for 15 min. Then, 2.5 kg of 1,4-phthalic acid, 70 L of N,N-dimethylformamide and 20 L of anhydrous formic acid were added to the reactor. The mixture was stirred and reacted at 100 ° C and 800 r / min for 15 min. The filter cake was centrifugally washed with acetone twice and vacuum dried to obtain a composite zeolite powder.

[0040] S2: 4 kg of composite zeolite powder, 12 kg of tannic acid and 3200 L of deionized water were added into a reactor, stirred at 20°C and 300 r / min for 8 min, centrifuged and filtered, the filter cake was washed twice with deionized water, and vacuum dried to obtain a modified composite zeolite powder.

[0041] S3: Add 30L of 20% potassium hydroxide aqueous solution, 1.5kg sodium alginate and 10.5L acrylic acid into the reactor, stir at 200r / min for 5min, then mix 3kg acrylamide, 3kg 2-acrylamide-2-methylpropanesulfonic acid and 30L deionized water and add them to the reactor, continue stirring for 10min, add 15L of 0.25% N,N'-methylenebisacrylamide aqueous solution at 50°C and stir for 5min, then add 3.6kg modified composite zeolite powder and 15L of 1.6% ammonium persulfate aqueous solution, ultrasonically disperse for 15min, stir and react at 70°C for 2.5h, wash the product twice with anhydrous ethanol, vacuum dry, crush, and pass through a 100-mesh sieve to obtain a preservative.

[0042] S4: Add 50g of boric acid and 20L of water into a stirring tank with a volume of 100L, stir at 200r / min for 5min, then add 2kg of wood vinegar, 0.8kg of seaweed extract, 0.5kg of potassium humate and 1mol (i.e. 168.19g) of phenylalanine into the stirring tank, continue stirring for 10min, then add 0.8kg of preservative and 0.2kg of sodium carboxymethyl cellulose as a suspension stabilizer into the reactor, continue stirring for 20min, and finally add water to make the volume to 100L to obtain a liquid fertilizer for increasing the yield of tubers and bulbils of Pinellia ternata.

[0043] Example 2: This example provides a liquid fertilizer for increasing the yield of tubers and bulbils of Pinellia ternata, which is prepared by the following steps:

[0044] S1: 6.5 kg of ammonium cerium nitrate was dissolved in 22 L of deionized water and added to a reactor with 5.5 kg of zeolite powder. The mixture was ultrasonically dispersed for 18 min. Then, 2.55 kg of 1,4-phthalic acid, 75 L of N,N-dimethylformamide and 22 L of anhydrous formic acid were added to the reactor. The mixture was stirred and reacted at 102 ° C and 900 r / min for 18 min. The filter cake was centrifugally washed with acetone twice and vacuum dried to obtain a composite zeolite powder.

[0045] S2: 4 kg of composite zeolite powder, 16 kg of tannic acid and 3600 L of deionized water were added into a reactor, stirred at 22° C. and 400 r / min for 9 min, centrifuged and filtered, the filter cake was washed twice with deionized water, and vacuum dried to obtain a modified composite zeolite powder.

[0046] S3: Add 30L of 20% potassium hydroxide aqueous solution, 2kg sodium alginate and 11.2L acrylic acid into the reactor, stir at 250r / min for 8min, then mix 3kg acrylamide, 3kg 2-acrylamide-2-methylpropanesulfonic acid and 33L deionized water and add them to the reactor, continue stirring for 12min, add 15L of 0.25% N,N'-methylenebisacrylamide aqueous solution at 52°C and stir for 6min, then add 3.6kg modified composite zeolite powder and 15L of 1.6% ammonium persulfate aqueous solution, ultrasonically disperse for 18min, stir and react at 72°C for 2.8h, wash the product twice with anhydrous ethanol, vacuum dry, crush, and pass through a 100-mesh sieve to obtain a preservative.

[0047] S4: Add 80g of boric acid and 30L of water into a stirring tank with a volume of 100L, stir at 250r / min for 8min, then add 2.5kg of wood vinegar, 0.9kg of seaweed extract, 0.8kg of potassium humate and 1.2mol (i.e. 201.828g) of phenylalanine into the stirring tank, continue stirring for 12min, then add 1kg of preservative and 0.5kg of suspension stabilizer into the reactor, continue stirring for 25min, and finally add water to make the volume to 100L to obtain a liquid fertilizer for increasing the yield of tubers and bulbils of Pinellia ternata.

[0048] Example 3: This example provides a liquid fertilizer for increasing the yield of tubers and bulbils of Pinellia ternata, which is prepared by the following steps:

[0049] S1: Dissolve 7 kg of ammonium cerium nitrate in 24 L of deionized water and add it to a reactor with 6 kg of zeolite powder. Ultrasonic dispersion is performed for 20 min. Then, 2.6 kg of 1,4-phthalic acid, 80 L of N,N-dimethylformamide and 24 L of anhydrous formic acid are added to the reactor. Stir and react at 105 ° C and 1000 r / min for 20 min. Filter by suction, wash the filter cake with acetone by centrifugation for 3 times, and vacuum dry to obtain a composite zeolite powder.

[0050] S2: 4 kg of composite zeolite powder, 20 kg of tannic acid and 4000 L of deionized water were added into a reactor, stirred at 25°C and 500 r / min for 10 min, centrifuged and filtered, the filter cake was washed with deionized water for 3 times, and vacuum dried to obtain a modified composite zeolite powder.

[0051] S3: Add 30L of 20% potassium hydroxide aqueous solution, 2.4kg sodium alginate and 12L acrylic acid into the reactor, stir at 300r / min for 10min, then mix 3kg acrylamide, 3kg 2-acrylamide-2-methylpropanesulfonic acid and 36L deionized water and add them to the reactor, continue stirring for 15min, add 15L of 0.25% N,N'-methylenebisacrylamide aqueous solution at 55°C and stir for 8min, then add 3.6kg modified composite zeolite powder and 15L of 1.6% ammonium persulfate aqueous solution, ultrasonically disperse for 20min, stir and react at 75°C for 3h, wash the product with anhydrous ethanol 3 times, vacuum dry, crush, and pass through a 100-mesh sieve to obtain a preservative.

[0052] S4: Add 100g of boric acid and 40L of water into a stirring tank with a volume of 100L, stir at 300r / min for 10min, then add 3kg of wood vinegar, 1kg of seaweed, 1kg of potassium humate and 1.5mol (i.e. 247.785g) of phenylalanine into the stirring tank, continue stirring for 15min, then add 1.2kg of preservative and 0.8kg of suspension stabilizer into the reactor, continue stirring for 30min, and finally add water to make the volume to 100L to obtain a liquid fertilizer for increasing the yield of tubers and bulbils of Pinellia ternata.

[0053] Comparative Example 1: On the basis of Example 3, no accumulator was added, and the other steps remained unchanged to prepare liquid fertilizer.

[0054] Comparative Example 2: Based on Example 3, without the operation in step S2, step S3 directly uses the composite zeolite powder in step S1 to replace the modified composite zeolite powder, and the other steps remain unchanged to prepare liquid fertilizer.

[0055] Comparative Example 3: On the basis of Example 3, without going through step S1, step S2 directly uses ordinary zeolite powder to replace the composite zeolite powder, and the other steps remain unchanged to prepare liquid fertilizer.

[0056] Zeolite powder in the examples and comparative examples was purchased from Xinyang Houpu Mining Co., Ltd., 120-140 mesh; sodium carboxymethyl cellulose was purchased from Anhui Zhonghong Bioengineering Co., Ltd.

[0057] The test soil was selected from Xiangshan District, Huaibei City, and dried to constant weight after removing impurities (phenylalanine content was 138 mg / kg). A PVC tube with an inner diameter of 5 cm and a length of 10 cm was selected, and the bottom of the tube was blocked with a 150-mesh filter cloth. The bottom was then filled with 50-mesh and 100-mesh quartz sand. Then, the same mass of dry soil was added to the tube. After adding the soil, the height was >8 cm, and 21 test molds were obtained. The test mold was placed on a 200-mesh screen, and then a beaker with a diameter of 10 cm (volume 600 mL) was set at the bottom of different test mold tubes, and then the liquid fertilizers in Examples 1-3 and Comparative Examples 1-3 were poured from the top of the test mold. Another group was poured with clean water as a control group. Each group was repeated 3 times, and the amount poured each time was 400 mL. During the pouring process, the liquid was prevented from overflowing from the top of the test mold. After no liquid leached out from the bottom of the test mold, the leaching liquid in the beaker was collected, and the concentration of phenylalanine in the leaching liquid was detected by a fully automatic amino acid analyzer (Sykam S433), and the results were averaged for 3 times. The results are shown in Table 1:

[0058] Table 1 Results of determination of phenylalanine concentration in the leachate

[0059]

[0060] It can be seen from Table 1 that after the liquid fertilizer in Examples 1 to 3 was poured into the soil in the test mold, the concentration of phenylalanine in the leachate was low, and the storage agent prepared by using the modified composite zeolite powder had a good fertilizer retention effect.

[0061] Comparative Example 4: On the basis of Example 3, phenylalanine was not added, and the other steps remained unchanged to prepare liquid fertilizer.

[0062] Comparative Example 5: Based on Example 3, no accumulator was added and the other steps remained unchanged to prepare liquid fertilizer.

[0063] Application example: In late March 2024, a test field was selected in Xiangshan District, Huaibei City. A randomized block design was used to select four plots of 1m 2 Three rows of Pinellia ternata (Pinellia ternata tubers with a diameter of about 1 cm were selected and the number was the same) were planted in adjacent blocks, the planting depth was 5 cm, the row spacing was 30 cm, and the field management remained the same. After all Pinellia ternata plants grew to a height of about 10 cm, the liquid fertilizers in Example 1, Example 3, Comparative Example 4 and Comparative Example 5 were applied in different blocks, respectively, and the application amount was 4 L / m 2 , apply once every 3 weeks, and manage water normally at other times to maintain soil moisture.

[0064] In August 2024, the field performance, morphological differences, and agronomic trait changes of Pinellia ternata under different treatment conditions were observed. The tubers and bulbils of Pinellia ternata were harvested, and the number of Pinellia ternata plants and yield were counted. The results are shown in Table 2:

[0065] Table 2 Statistical results of the number of Pinellia ternata plants and their yield

[0066]

[0067] It can be seen from Table 2 that after applying the liquid fertilizer in Example 1 and Example 3, the number of Pinellia plants increased and the yield increased significantly. This is because after applying the liquid fertilizer in the example, Pinellia grows and reproduces faster in the same cycle, the bulbils can mature faster and enter the next life cycle, and the bulbils formed by the first generation of Pinellia plants grow into new Pinellia plants.

[0068] For the field performance of Pinellia ternata, please refer to Figure 1 .Depend on Figure 1 It can be seen that after applying the liquid fertilizers in Examples 1 and 3, the growth of Pinellia ternata was good; when the liquid fertilizer in Comparative Example 4 was applied, the field performance of Pinellia ternata was poor, and when the liquid fertilizer in Comparative Example 5 was applied, the field performance of Pinellia ternata was slightly worse than that of the liquid fertilizer in Example 1.

[0069] Morphological differences in Pinellia include the plant (see Figure 2 ), tubers (see Figure 3 ) and bulbils (see Figure 4 ).Depend on Figure 2 It can be seen that, compared with the application of the liquid fertilizer in Comparative Example 4, the plant height and root length of Pinellia ternata were promoted after the application of the liquid fertilizer in Example 1, Example 3 and Comparative Example 5. Figure 3 and Figure 4 It can be seen that after applying the liquid fertilizer in Example 1 and Example 3, the morphology of the tubers and bulbils of Pinellia ternata were improved and became fuller.

[0070] Please refer to the agronomic characteristics of Pinellia ternata Figure 5 The capital letters in the figure are the way to indicate whether the difference in numerical changes is statistically significant. Different letters indicate significant differences. The same letters (or combinations) indicate differences but not significant. That is, A and B indicate significant differences, A and AB (B and AB) indicate insignificant differences, and C indicates significant differences from A, B, and AB. Figure 5 It can be seen that after being treated with the liquid fertilizer in Example 1 and Example 3, the root length, root weight, bulbil weight, plant height, plant fresh weight and tuber weight of Pinellia ternata were all improved.

[0071] Combination Figure 1-Figure 5The results in the table 2 and 3 indicate that liquid fertilizer containing phenylalanine at a concentration of 10-15 mmol / L has a promoting effect on increasing the yield of tubers and bulbils of Pinellia ternata.

[0072] The invention is creative in that it not only directly promotes the development of the tubers of Pinellia ternata, but more importantly, significantly promotes the development of the bulbils of Pinellia ternata. This innovation solves the problem of poor bulbil development in traditional propagation methods, allowing the bulbils to mature faster and enter the next life cycle.

[0073] By accelerating the maturation speed of bulbils, the present invention improves the yield of Pinellia ternata as a whole. This is because bulbils are an important way of reproducing Pinellia ternata, and their rapid development and maturity mean that more Pinellia ternata plants can be obtained in a shorter time, thereby increasing the total yield.

[0074] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0075] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A liquid fertilizer for increasing the yield of tubers and bulbils of Pinellia ternata, characterized in that: According to concentration, it includes the following components: Phenylalanine 10-15mmol / L, wood vinegar 20-30g / L, algae extract 8-10g / L, potassium humate 5-10g / L, boric acid 0.5-1g / L, preservative 8-12g / L, suspension stabilizer 2-8g / L; The storage agent is prepared by the following steps: Dissolve ammonium cerium nitrate in deionized water and add it to a reactor with zeolite powder, perform ultrasonic dispersion for 15-20 minutes, then add 1,4-phthalic acid, N,N-dimethylformamide and anhydrous formic acid to the reactor, stir and react at 100-105° C. and 800-1000 r / min for 15-20 minutes, filter, centrifugally wash the filter cake with acetone for 2-3 times, and vacuum dry to obtain composite zeolite powder; Add composite zeolite powder, tannic acid and deionized water into a reaction kettle, stir for 8-10 minutes at 20-25°C and 300-500 r / min, centrifuge and filter, wash the filter cake with deionized water 2-3 times, and vacuum dry to obtain modified composite zeolite powder; A 20% by mass potassium hydroxide aqueous solution, sodium alginate and acrylic acid are added to a reaction kettle, and the mixture is stirred at 200-300 r / min for 5-10 min. Acrylamide, 2-acrylamide-2-methylpropanesulfonic acid and deionized water are evenly mixed and added to the reaction kettle, and the mixture is stirred for 10-15 min. A 0.25 wt% N,N'-methylenebisacrylamide aqueous solution is added at 50-55° C. and stirred for 5-8 min. Then, modified composite zeolite powder and a 1.6 wt% ammonium persulfate aqueous solution are added. After ultrasonic dispersion for 15-20 min, the mixture is stirred at 70-75° C. and reacted for 2.5-3 h. The product is washed with anhydrous ethanol for 2-3 times, vacuum dried, crushed, and passed through a 100-mesh sieve to obtain a storage agent.

2. A liquid fertilizer for increasing the yield of tubers and bulbils of Pinellia ternata according to claim 1, characterized in that: The dosage ratio of the potassium hydroxide aqueous solution, sodium alginate, acrylic acid, acrylamide, 2-acrylamide-2-methylpropanesulfonic acid, deionized water, N,N'-methylenebisacrylamide aqueous solution, modified composite zeolite powder and ammonium persulfate aqueous solution is 10mL: 0.5-0.8g: 3.5-4mL: 1g: 1g: 10-12mL: 5mL: 1.2g: 5mL.

3. A liquid fertilizer for increasing the yield of tubers and bulbils of Pinellia ternata according to claim 1, characterized in that: The suspension stabilizer is sodium carboxymethyl cellulose.

4. A liquid fertilizer for increasing the yield of tubers and bulbils of Pinellia ternata according to claim 1, characterized in that: The usage ratio of the composite zeolite powder, tannic acid and deionized water is 1g:3-5g:800-1000mL.

5. The liquid fertilizer for increasing the yield of tubers and bulbils of Pinellia ternata according to claim 1, characterized in that: The dosage ratio of the ammonium cerium nitrate, deionized water, 1,4-phthalic acid, N,N-dimethylformamide, zeolite powder and anhydrous formic acid is 3-3.5 g: 10-12 mL: 1.25-1.3 g: 35-40 mL: 2.5-3 g: 1-1.2 mL.

6. A method for preparing a liquid fertilizer for increasing the yield of tubers and bulbils of Pinellia ternata according to claim 1, comprising the following steps: Add boric acid and water into a stirring kettle, stir at 200-300 r / min for 5-10 min, then add wood vinegar, seaweed, potassium humate and phenylalanine into the stirring kettle, continue stirring for 10-15 min, then add a preservative and a suspension stabilizer into the reactor and stir for 20-30 min, finally add water to make up the volume, and obtain a liquid fertilizer for increasing the yield of tubers and bulbils of Pinellia ternata.

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