Method for preparing water fertilizer by using sugarcane alcohol fermentation liquor

Abstract

The invention provides a method for preparing a water fertilizer by using a sugarcane alcohol fermentation broth, and relates to the technical field of fertilizer preparation, the method comprises the following steps: (1) fermentation, (2) blending, and (3) dilution and filtration. The method has the advantages of being simple in process and easy to operate, the water fertilizer obtained through the method can be applied to various crops in a drop irrigation mode and other root application modes, and the obvious effects of soil improvement, growth promotion, disease resistance, yield increase and the like are achieved.

Description

[Technical field]

[0001] The invention relates to the technical field of fertilizer preparation, and in particular to a method for preparing water-fertilizer by utilizing sugarcane alcohol fermentation liquid. [Background technology]

[0002] Guangxi's sugarcane sugar production accounts for about 70% of the country's total. The sugarcane industry is an important economic pillar of Guangxi. Molasses, a by-product of sugar production, is mainly used to produce alcohol. The alcohol fermentation liquid produced during the alcohol production process has long been the main source of pollution in Guangxi. Its harmless treatment is recognized as a difficult global problem that is difficult to solve, endangering the sustainable development of the sugar industry.

[0003] The existing disclosed treatment methods include applying sugarcane alcohol fermentation liquid to the preparation of farm fertilizers. However, its effect is relatively simple and the fertilizer efficiency is not ideal. Generally, more nutrients need to be compounded to meet the growth needs of crops. In addition, the sugarcane alcohol fermentation liquid contains some uncomposted components. If it cannot be fully composted, it is easy to damage crops and cause root and seedling burns. [Summary of the invention]

[0004] In view of this, the object of the present invention is to provide a method for preparing water-fertilizer using sugarcane alcohol fermentation liquid. The water-fertilizer obtained by this method can be applied to a variety of crops by root application methods such as drip irrigation, which has a significant yield-increasing effect.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A method for preparing water fertilizer using sugarcane alcohol fermentation liquid comprises the following steps:

[0007] (1) Fermentation: adding the functional extract to the sugarcane alcohol fermentation liquid, and then adding a Bacillus fermentation agent at a weight of 0.3-0.6% of the sugarcane alcohol fermentation liquid, and then using a micro-nano bubble generator to blow micro-nano air bubbles into the liquid, fermenting for 3-6 days to obtain a decomposed liquid for standby use;

[0008] (2) Preparation: adding soluble nitrogen, phosphorus and potassium fertilizers to the decomposed liquid obtained by the treatment in step (1), mixing well to obtain a macronutrient water-soluble fertilizer concentrate, then adding a potassium hydroxide solution with a concentration of 10-30% to adjust the pH value to 5.5-7.0. The macronutrient water-soluble fertilizer concentrate meets the technical standard requirements of NY / T 1107;

[0009] (3) Dilution and filtration: Add clean water to the macronutrient water-soluble fertilizer concentrate to dilute it, and then filter the filtrate with a 80-120 mesh sieve to obtain the water-soluble fertilizer (i.e., the macronutrient water-soluble fertilizer working solution).

[0010] In the present invention, further, the functional extract in step (1) is obtained by mixing pumpkin seed extract, andrographis paniculata extract and ginger peel extract in a mass ratio of 1-2:3:4-6, and the volume ratio of the functional extract to the sugarcane alcohol fermentation liquid is 1:8-10. The pumpkin seed extract, andrographis paniculata extract and ginger peel extract are all prepared by extracting the corresponding medicinal materials through alcohol extraction.

[0011] In the present invention, further, the effective live bacteria count of the Bacillus fermentation agent in step (1) is greater than 200 million / ml.

[0012] In the present invention, further, the power of the micro-nano bubble generator in step (1) is greater than 11KW, the air intake flow rate is greater than 30L / min, and the bubble water output is greater than 30m 3 / h.

[0013] In the present invention, further, in the step (2), the mass ratio of soluble nitrogen, phosphorus and potassium fertilizers to the decomposing liquid is 1:7-9.

[0014] In the present invention, further, the soluble nitrogen, phosphorus and potassium fertilizer in step (2) is selected from one of monoammonium phosphate, diammonium phosphate, potassium nitrate and potassium dihydrogen phosphate, or any combination thereof.

[0015] In the present invention, further, the dilution in step (3) is specifically to inject clean water into the macro-element water-soluble fertilizer concentrate to a Baume concentration of 3-10BX°, and the total nutrient percentage of nitrogen, phosphorus and potassium is controlled below 0.5%.

[0016] The present invention also provides an application of the above-mentioned water-fertilizer, including application in fertilization of crops, wherein the water-fertilizer is specifically applied to crops by root application methods such as drip irrigation and sprinkling; the crops are various crops such as sugarcane, corn, and vegetables.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0018] 1. The present application adopts sugarcane alcohol fermentation liquid to prepare a water fertilizer, first by compounding functional extracts, and then adding Bacillus fermentation agents for fermentation, the functional extracts are extracted from pumpkin seeds, andrographis paniculata and ginger peel, and the three components all have certain antibacterial properties. Experiments show that after compounding the above components, the obtained water fertilizer can reduce the occurrence of crop diseases after application, thereby improving the survival rate and yield. The present application is the first to propose a multi-effect liquid water fertilizer prepared by using sugarcane alcohol fermentation liquid. During the growth of crops, fertilization and sterilization can be carried out in parallel, and no additional application of chemical insecticides and fungicides is required, which is of great significance; in addition, pumpkin seed extract contains more phosphorus, which can supplement phosphorus for water fertilizer. The applicant has conducted a lot of research on sugarcane alcohol fermentation liquid. Studies have found that the phosphorus content is relatively scarce. If it is directly applied to crops, then the gramineous crops with a large demand for phosphorus, such as rice, will have poor root development and cannot grow well. The pumpkin seed extract added in this application not only has a bactericidal effect, but also can increase the phosphorus element in the water and fertilizer, achieving the effect of killing two birds with one stone; and in the subsequent preparation step, continuing to add water-soluble nitrogen, phosphorus and potassium fertilizers can further ensure the content of a large number of elements in the water and fertilizer, and ensure that a series of problems caused by deficiency will not occur during the growth of crops. Then, by adjusting the pH value, it can play a role in controlling acidified soil and has a good soil improvement effect; finally, a sieve is used for filtration, and the solubility of the obtained water and fertilizer is greater than 98%, which can be used for drip irrigation, and crops can absorb nutrients well.

[0019] 2. The functional extract of the present application is obtained by combining pumpkin seed extract, andrographis paniculata extract and ginger peel extract. The extract has bactericidal properties and can impart a bactericidal effect to water and fertilizer, so that after applying the fertilizer of the present application, there is no need to apply chemical fungicides, and the crops can also be reduced from being invaded by diseases. However, when selecting the bactericidal composition, the applicant found that certain Chinese medicines have different effects on the growth of different fermentation bacteria, including inhibitory / promoting effects. For this reason, the extract with bactericidal efficacy may also have an inhibitory effect on the fermentation bacteria (Bacillus), resulting in weak growth ability of the fermentation bacteria, and ultimately greatly reducing the fermentation effect. Therefore, how to select a suitable extract is also the key problem to be solved in the present application. Experiments have shown that the addition of the functional extract in the present application can avoid the operation of sterilizing crops, and it has been proven to be effective by experiments. On the other hand, the functional extract selected by the present invention will not inhibit the fermentation effect of the Bacillus fermentation bacteria. [Specific implementation method]

[0020] The following embodiments may help those skilled in the art to more fully understand the present invention, but shall not limit the present invention in any way.

[0021] Example 1

[0022] This embodiment provides a method for preparing water-fertilizer using sugarcane alcohol fermentation liquid, which specifically includes the following steps:

[0023] (1) Fermentation: adding a functional extract to the sugarcane alcohol fermentation liquid, and then adding a Bacillus fermentation agent with an effective live bacteria count of more than 200 million / ml to the above materials at a weight of 0.3% of the sugarcane alcohol fermentation liquid, and then using a micro-nano bubble generator to blow micro-nano air bubbles, fermenting for 3 days to obtain a decomposed liquid for use; the functional extract is a mixture of pumpkin seed extract, andrographis paniculata extract and ginger peel extract in a mass ratio of 1:3:4, and the volume ratio of the functional extract to the sugarcane alcohol fermentation liquid is 1:8; the power of the micro-nano bubble generator is greater than 11KW, the air intake flow rate is greater than 30L / min, and the bubble water output is greater than 30m 3 / h; The Bacillus fermentation agent used in this embodiment is a commercially available Bacillus purchased from Wubao Agricultural Technology Group Co., Ltd.;

[0024] (2) Preparation: adding monoammonium phosphate to the decomposed liquid obtained by the treatment in step (1), and mixing thoroughly to obtain a macronutrient water-soluble fertilizer concentrate, and then adding a 10% potassium hydroxide solution to adjust the pH value to 5.5. The macronutrient water-soluble fertilizer concentrate meets the technical standard requirements of NY / T 1107; the mass ratio of monoammonium phosphate to the decomposed liquid is 1:7;

[0025] (3) Dilution and filtration: Add clean water to the concentrated solution of macronutrient water-soluble fertilizer until the concentration is 3BX° in degrees Baume and the total nutrient content of nitrogen, phosphorus and potassium is 0.4%. Then, filter the filtrate with an 80-mesh sieve to obtain the water-soluble fertilizer.

[0026] Example 2

[0027] This embodiment provides a method for preparing water-fertilizer using sugarcane alcohol fermentation liquid, which specifically includes the following steps:

[0028] (1) Fermentation: adding a functional extract to the sugarcane alcohol fermentation liquid, and then adding a Bacillus fermentation agent with an effective live bacteria count of more than 200 million / ml to the above materials at a weight of 0.4% of the sugarcane alcohol fermentation liquid, and then using a micro-nano bubble generator to blow micro-nano air bubbles, fermenting for 5 days to obtain a decomposed liquid for use; the functional extract is obtained by mixing pumpkin seed extract, andrographis paniculata extract and ginger peel extract in a mass ratio of 1:3:5, and the volume ratio of the functional extract to the sugarcane alcohol fermentation liquid is 1:9; the power of the micro-nano bubble generator is greater than 11KW, the air intake flow rate is greater than 30L / min, and the bubble water output is greater than 30m 3 / h; The Bacillus fermentation agent used in this embodiment is a commercially available Bacillus purchased from Wubao Agricultural Technology Group Co., Ltd.;

[0029] (2) Preparation: Add diammonium phosphate to the decomposed liquid obtained by the step (1), mix thoroughly to obtain a macronutrient water-soluble fertilizer concentrate, then add a 20% potassium hydroxide solution to adjust the pH value to 6.0. The macronutrient water-soluble fertilizer concentrate meets the technical standard requirements of NY / T 1107; the mass ratio of diammonium phosphate to the decomposed liquid is 1:8;

[0030] (3) Dilution and filtration: Add clean water to the macronutrient water-soluble fertilizer concentrate to a Baume concentration of 6BX° and a total nutrient content of 0.45% for nitrogen, phosphorus and potassium, and then filter the filtrate with a 100-mesh sieve to obtain the water-soluble fertilizer.

[0031] Example 3

[0032] This embodiment provides a method for preparing water-fertilizer using sugarcane alcohol fermentation liquid, which specifically includes the following steps:

[0033] (1) Fermentation: adding a functional extract to the sugarcane alcohol fermentation liquid, and then adding a Bacillus fermentation agent with an effective live bacteria count of more than 200 million / ml to the above materials at a weight of 0.6% of the sugarcane alcohol fermentation liquid, and then using a micro-nano bubble generator to blow micro-nano air bubbles, fermenting for 6 days to obtain a decomposed liquid for standby use; the functional extract is a mixture of pumpkin seed extract, andrographis paniculata extract and ginger peel extract in a mass ratio of 2:3:6, and the volume ratio of the functional extract to the sugarcane alcohol fermentation liquid is 1:10; the power of the micro-nano bubble generator is greater than 11KW, the air intake flow rate is greater than 30L / min, and the bubble water output is greater than 30m 3 / h; The Bacillus fermentation agent used in this embodiment is a commercially available Bacillus purchased from Wubao Agricultural Technology Group Co., Ltd.;

[0034] (2) Preparation: adding potassium dihydrogen phosphate to the decomposed liquid obtained by the treatment in step (1), and mixing well to obtain a macro-element water-soluble fertilizer concentrate, and then adding a 30% potassium hydroxide solution to adjust the pH value to 7.0. The macro-element water-soluble fertilizer concentrate meets the technical standard requirements of NY / T 1107; the mass ratio of potassium dihydrogen phosphate to the decomposed liquid is 1:9;

[0035] (3) Dilution and filtration: Add clean water to the compound fertilizer until the Baume concentration is 10BX° and the total nutrient content of nitrogen, phosphorus and potassium is 0.49%, and then filter the filtrate with a 120-mesh sieve to obtain the water-based fertilizer.

[0036] Test example

[0037] In order to illustrate the practical value of this application, the applicant conducted the following experiments:

[0038] Experiment 1: Testing the effect of functional extracts on Bacillus

[0039] This experiment tests the effects of several common Chinese medicines with bactericidal effects on the effective viable count of Bacillus, including Artemisia argyi extract, Houttuynia cordata extract, ginger peel extract, Coptis chinensis extract, pumpkin seed extract and Andrographis paniculata extract; the above extracts are all obtained by alcohol extraction in the same way;

[0040] The specific method is to apply the above extracts to the fermentation operation in step (1) of Example 2, that is, after adding Bacillus, the culture is allowed to stand for 1 hour, and then the effective viable bacteria count of Bacillus before and after the addition is tested. It is known from the test that the effective viable bacteria count of Bacillus before the addition is 3.3×10 8 / ml, which is recorded as the blank group. The viable bacterial counts after adding each Chinese medicine extract are shown in Table 1:

[0041] Table 1 Effects of different Chinese medicines on the number of viable Bacillus

[0042]

[0043] According to the results in Table 1, some Chinese medicines with bactericidal effects will reduce the effective viable count of Bacillus. Therefore, bactericidal Chinese medicines cannot be blindly selected for compound fermentation. Experiments have shown that the pumpkin seed extract, ginger peel extract and Andrographis paniculata extract of the present application have no inhibitory effect on the growth of Bacillus.

[0044] Experiment 2: Testing the effect of water and fertilizer application

[0045] This experiment specifically tests the application effects of water and fertilizer prepared in different ways on crops, and the groups are as follows:

[0046] The first group: water-fertilizer prepared in the manner of Example 2 of the present application;

[0047] Group 2: Remove the fermentation of Bacillus, and the other methods are the same as Group 1;

[0048] Group 3: Remove the functional extracts, and other methods are the same as Group 1;

[0049] Group 4: Remove soluble phosphate fertilizer, other methods are the same as Group 1;

[0050] Group 5: Remove soluble phosphorus fertilizer and pumpkin seed extract, and other methods are the same as Group 1;

[0051] Group 6: Use commercially available water-fertilizer, purchased from Gaoligao macro-element water-soluble fertilizer.

[0052] Comparing the effects of the above groups of water and fertilizer on sugarcane and corn, except for the differences emphasized, other field treatments were the same. In this experiment, only the above fertilizers were applied during the growth period of crops. Table 2 shows the growth comparison of sugarcane, and Table 3 shows the growth comparison of rice, as follows:

[0053] Table 2 Growth of sugarcane after water and fertilizer application in each group

[0054]

[0055]

[0056] Table 3 Growth of corn after water and fertilizer application in each group

[0057] Disease situation Yield per mu (kg / mu) Group 1 none 1023 Group 2 slight 812 Group 3 serious 579 Group 4 none 729 Group 5 none 693 Group 6 serious 689

[0058] According to the results in Tables 2-3, the water-fertilizer prepared by the method of the present application can promote the growth of crops and prevent and control diseases without the need for additional application of fungicides. Although the commercially available water-fertilizer of the sixth group can also meet the nutrients required for crop growth, diseases will occur if fungicides are not applied, which will ultimately affect the yield per mu. In addition, the cost of using the water-fertilizer of the sixth group is also relatively high. Based on the above, the water-fertilizer of the present application has good market prospects.

[0059] Although the present invention has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements may be made thereto based on the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all fall within the scope of protection claimed by the present invention.

Claims

1. A method for preparing water fertilizer using sugarcane alcohol fermentation liquid, characterized in that: The following steps are involved: (1) Fermentation: adding functional extracts to the sugarcane alcohol fermentation liquid, and then adding a Bacillus fermentation agent at a weight of 0.3-0.6% of the sugarcane alcohol fermentation liquid, and then using a micro-nano bubble generator to blow micro-nano air bubbles into the liquid, fermenting for 3-6 days to obtain a decomposed liquid for standby use; (2) Preparation: adding soluble nitrogen, phosphorus and potassium fertilizers to the decomposed liquid obtained by the treatment in step (1), mixing thoroughly to obtain a concentrated solution of macronutrient water-soluble fertilizer, and then adding a potassium hydroxide solution with a concentration of 10-30% to adjust the pH value to 5.5-7.0; (3) Dilution and filtration: Add clean water to the concentrated solution of macronutrient water-soluble fertilizer to dilute it, and then filter the filtrate with a 80-120 mesh sieve to obtain the water-soluble fertilizer.

2. The method according to claim 1, characterized in that The functional extract in step (1) is obtained by mixing pumpkin seed extract, andrographis paniculata extract and ginger peel extract in a mass ratio of 1-2:3:4-6, and the volume ratio of the functional extract to sugarcane alcohol fermentation liquid is 1:8-10.

3. The method according to claim 1, characterized in that The effective viable bacteria count of the Bacillus fermentation agent in step (1) is greater than 200 million / ml.

4. The method according to claim 1, characterized in that: The power of the micro-nano bubble generator in step (1) is greater than 11KW, the air intake flow rate is greater than 30L / min, and the bubble water output is greater than 30m 3 / h.

5. The method according to claim 1, characterized in that In the step (2), the mass ratio of soluble nitrogen, phosphorus and potassium fertilizers to the decomposed liquid is 1:7-9.

6. The method according to claim 1, characterized in that In the step (2), the soluble nitrogen, phosphorus and potassium fertilizer is selected from one of monoammonium phosphate, diammonium phosphate, potassium nitrate and potassium dihydrogen phosphate, or any combination thereof.

7. The method according to claim 1, characterized in that The dilution in step (3) is specifically to inject clean water into the macro-element water-soluble fertilizer concentrate to a Baume concentration of 3-10BX°.

8. The use of the water-fertilizer according to any one of claims 1 to 7, characterized in that: The water-fertilizer is applied to fertilizing crops.

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