CN112409058A - Preparation method of amino acid-containing water-soluble fertilizer - Google Patents
Preparation method of amino acid-containing water-soluble fertilizer Download PDFInfo
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- CN112409058A CN112409058A CN202011619233.1A CN202011619233A CN112409058A CN 112409058 A CN112409058 A CN 112409058A CN 202011619233 A CN202011619233 A CN 202011619233A CN 112409058 A CN112409058 A CN 112409058A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C11/00—Other nitrogenous fertilisers
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Abstract
The invention discloses a preparation method of a water-soluble fertilizer containing amino acid, belonging to the technical field of fertilizers. A process for preparing the water-soluble fertilizer containing amino acid includes such steps as evaporating the waste water generated by compound fertilizer process, concentrating to obtain total N + P as effective component2O5+K2And (3) adding 21-26% of O, then adding amino acid powder, uniformly stirring, adding an auxiliary agent, uniformly stirring, and performing microfiltration to obtain the amino acid-containing water-soluble fertilizer. In conclusion, the method changes waste into valuable, has short process flow and easy operation, solves the problems of lack of chelated trace elements and soil hardening of the traditional fertilizer, promotes crops to absorb and utilize nutrients, and has high utilization rate of the fertilizer.
Description
Technical Field
The invention belongs to the technical field of fertilizers, and relates to a preparation method of a water-soluble fertilizer containing amino acid.
Background
Liquid fertilizers are mainly divided into two categories of liquid-version nitrogen fertilizers and liquid compound fertilizers. Wherein the liquid nitrogen fertilizer contains nitrogen in ammonium state, nitrate state and amide state, such as liquid ammonia, ammonia water, ammonium nitrate and ammonia ammine compound, urea and ammonia ammine compound, etc.; the liquid compound fertilizer contains N, P, K two or three kinds of nutritive elements, such as ammonium phosphate, urea ammonium phosphate, ammonium nitrate, ammonium potassium phosphate, etc. Generally, liquid fertilizers are rich in variety, but generally have the defects of single nutrient and easy soil hardening after long-term application, for example, liquid compound fertilizers basically take suspending agents as main materials, the appearance of the liquid fertilizers is turbid, when the liquid fertilizers are applied to tobacco of economic crops, the chlorine ions contained in the liquid fertilizers can influence the growth quality of leaves of the tobacco, the leaves are small and have specks, and meanwhile, the liquid fertilizers cannot provide enough effective nutrients for the crops.
The amino acid-containing water-soluble fertilizer is applied to the leaf surfaces, fruits and roots of the crops, can be directly absorbed and utilized by the crops, and effectively meets the nutrition required by the growth and development of the crops. The application of the water-soluble fertilizer containing amino acid can accelerate seed germination, improve the rate of emergence, and has special promotion effect on the root system development of crops, which is mainly reflected in stimulating the division and growth of meristematic cells at root ends, so that seedlings have quick rooting, secondary roots are increased, the root quantity is increased, and the root system is elongated, thereby enhancing the capacity of crops for absorbing water and nutrients.
The process wastewater generated by the compound fertilizer process contains abundant macroelements, and the traditional treatment method is to carry out stage-by-stage filtration treatment on the process wastewater in a wastewater treatment system, so that the system has high operation pressure and high water consumption, and the recovery rate of the macroelements in the wastewater is low.
The invention develops a method for producing a water-soluble fertilizer by using wastewater generated by a compound fertilizer production device, on one hand, the pressure of wastewater treatment in the traditional process is solved, and on the other hand, the water-soluble fertilizer which is suitable for crops and economic crops to absorb and utilize nutrients is produced.
Disclosure of Invention
The invention aims to provide a preparation method of an amino acid-containing water-soluble fertilizer.
The invention is realized by the following technical scheme:
a process for preparing the water-soluble fertilizer containing amino acid includes such steps as evaporating the waste water generated by compound fertilizer process, concentrating to obtain total N + P as effective component2O5+K2And (3) adding 21-26% of O, then adding amino acid powder, uniformly stirring, adding an auxiliary agent, uniformly stirring, and performing microfiltration to obtain the amino acid-containing water-soluble fertilizer.
Further, the free amino acid content of the amino acid powder is 25-30%.
The chelated trace elements comprise boron, iron, zinc, copper, manganese and molybdenum, namely EDTA-Zn, EDTA-Fe, EDTA-Cu, EDTA-Mn and EDTA-Mo.
The process wastewater is concentrated to a density of 1.30-1.32 g/mL.
The concentrated process wastewater comprises the following steps: amino acid powder: the mass ratio of the auxiliary agent is 85-88:3-5: 9-10.
The concentrated process wastewater comprises the following steps: amino acid powder: the mass ratio of the auxiliary agent is 87:3.4: 9.6.
The auxiliary agent also comprises borax or boric acid.
The amino acid-containing water-soluble fertilizer is a novel fertilizer rich in major elements such as nitrogen, phosphorus and potassium and various chelated medium and trace elements, can effectively meet the nutrition required by the growth and development of crops, improves the utilization rate of the fertilizer, is widely suitable for economic crops such as wheat, cucumber, tomato and the like, and can be diluted for foliage spraying or root fertilization when in use.
The amino acid-containing water-soluble fertilizer can accelerate seed germination and improve the rate of emergence, is particularly obvious in early spring and low temperature, can generally improve the germination by 1-3 days, and improves the rate of emergence by 10-30%; in addition, the fertilizer also has a special promotion effect on the root system development of crops, and is mainly characterized in that the division and the growth of meristematic cells at root ends are stimulated, so that seedlings grow roots quickly, secondary roots are increased, the root quantity is increased, the root system is elongated, and finally the capability of the crops for absorbing water and nutrients is greatly enhanced; on the basis of sufficient nutrient supply, the stimulation effect of the amino acid can ensure that overground part of the plant can grow vigorously, which is mainly shown in the aspects of plant height, stem thickness, leaf number, dry matter accumulation and the like; the yield and the composition factors of different crops are different, the yield increasing effect is realized on grain crops, such as more ears, more grains, thousand-grain weight and the like, the early-stage tillering and blighter rate reducing effects are good, and the stimulation effect is realized on the plants, which is mainly shown in that the respiration intensity is increased, the photosynthesis is increased, and the activities of various enzymes are enhanced, so that the fruits are colored and mature in advance, the high yield is obtained, and the yield value is improved; and can effectively enhance the stress resistance of crops to diseases, low temperature, high temperature and drought.
In conclusion, the method changes waste into valuable, has short process flow and easy operation, solves the problems of lack of chelated trace elements and soil hardening of the traditional fertilizer, promotes crops to absorb and utilize nutrients, and has high utilization rate of the fertilizer.
Detailed Description
The present invention is further illustrated by the following examples.
Example 1
The waste water produced by the compound fertilizer production device is evaporated, concentrated and blended to ensure that the waste water contains major elements of total nutrients (N + P)2O5+K2O) content from 14%, density: 1.14g/mL, evaporated and concentrated to total nutrient (N + P)2O5+K2O) content up to 25%, density: 1.31g/mL, adding 34Kg of amino acid powder (wherein the content of free amino acid is 30 percent), 15Kg of chelated zinc EDTA-Zn, 20Kg of chelated iron is EDTA-Fe, 15Kg of chelated copper is EDTA-Cu, 15Kg of chelated manganese is EDTA-Mn, 15Kg of chelated molybdenum is EDTA-Mo, and 16Kg of sodium perborate, uniformly mixing and microfiltering the concentrated process wastewater 870Kg to obtain the amino acid-containing water-soluble fertilizer.
The field experiment effect of the product by using winter wheat specifically is as follows:
the experimental sources are as follows: according to the requirements of "fertilizer registration management methods" and "fertilizer effect tests and evaluation general requirements" (NY/T2544-2014) of Ministry of agriculture, amino acid-containing water-soluble fertilizers were subjected to regular fertilizer effect tests on Xinzhou city Xinfu district Dongfu village prefluo village winter wheat in 2019.
Test materials:
basic conditions of the test foundation: the land shape is flat land, the fertility is moderate, and the nutrient condition is as follows: physical and chemical analysis data shows that the organic matter (g/Kg) is 16.8, the total nitrogen (g/Kg) is 0.64, the alkaline hydrolysis nitrogen (mg/Kg) is 101, the available phosphorus (mg/Kg) is 13.0, the quick-acting potassium (mg/Kg) is 114 and the pH value is 7.9.
Experimental settings were: the length of the cell is 13m, the width is 4.0m, the net area is 52 square meters, the arrangement of the cells adopts random arrangement, the repeated operation is carried out for three times, and a protection row is arranged. The cell settings are as follows:
treatment 1 (indicated by S1) conventional fertilization + spraying of a 500-fold liquor of "amino acid-containing water-soluble fertilizer". (90 ml of amino acid-containing water soluble fertilizer solution is sprayed with 45kg of clear water per mu).
Treatment 2 (indicated by S2) conventional fertilization + spraying of equal amounts of clear water.
Treating 3 (indicated by S3), applying conventional fertilizer, applying 50kg of ternary compound fertilizer (26-13-6) as base fertilizer, and applying 20kg of urea in the green turning period.
The test method comprises the following steps: and (3) carrying out foliar spraying and fertilizer and clear water spraying and non-spraying treatment on 9 treated cells in the winter wheat booting stage of 5-11 days in 2019, spraying 1 time every 7 days, and spraying three times in total, wherein the acre fertilizer is 270ml in total.
And (3) field management conditions: sowing is carried out on 28 days of 9 and 28 months in 2018, the sowing quantity is 17.5 kilograms, the row spacing is 25cm, about 20 thousands of seedlings are planted per mu, and the soil moisture content is good. Watering the water once in 12 months and 1 day in 2018, wherein the watering amount is 80 square/mu, watering the green-turning water once in 4 months and 20 days in 2019, the watering amount is 80 square/mu, additionally applying 20 kilograms of urea, and watering the water once in 14 days in 5 months and later. Spraying natural guards of Guangxi rural areas 200 ml/mu in 20 days in 5 months in 2019. And 7, month and 1 in 2019, and drying in the sun according to the district.
Results of the experiment
Biological properties: the 26-day growth period observation in 5 and 2019 shows that S1 is darker green than leaves, and the results and analysis are as follows:
TABLE 1 plant height Table
TABLE 2 yield results and analysis
TABLE 3 ANOVA TABLE
Table 4 multiple comparison by LSD method (mean and statistic for lower triangle, p value for upper triangle) LSD05=0.9146 LSD01=1.5167)
TABLE 5 registration analysis Table (letter symbols indicate results)
TABLE 6 benefit analysis table
According to test reports, the yield of winter wheat is increased by 32.1 kg compared with the conventional fertilizer application method, the yield is increased by 9.7%, and the input-output ratio is 1: 1.8. The yield increasing effect is reflected on the change of the plant height. Through analysis of variance, the difference between S1 and S3 of winter wheat using the 'water-soluble fertilizer containing amino acid' F =35.9250 > F =18.00 reaches a very significant level, and through multiple comparison, the yield of S1 is very significant compared with that of S2 and S3, and is not significant between S2 and S3.
Example 2
The waste water produced by the compound fertilizer production device is evaporated and concentratedThe wastewater is condensed and prepared to ensure that the wastewater contains macroelement total nutrients (N + P)2O5+K2O) content from 14%, density: 1.13g/mL, evaporated and concentrated to total nutrient (N + P)2O5+K2O) content up to 26%, density: 1.32g/mL, adding 30Kg of amino acid powder (wherein the content of free amino acid is 30 percent), 15Kg of chelated zinc EDTA-Zn, 20Kg of chelated iron is EDTA-Fe, 15Kg of chelated copper is EDTA-Cu, 15Kg of chelated manganese is EDTA-Mn, 15Kg of chelated molybdenum is EDTA-Mo, 15Kg of mixture of sodium perborate and borax into 850Kg of concentrated process wastewater, uniformly mixing, and microfiltering to obtain the amino acid-containing water-soluble fertilizer.
Example 3
The waste water produced by the compound fertilizer production device is evaporated, concentrated and blended to ensure that the waste water contains major elements of total nutrients (N + P)2O5+K2O) content from 14%, density: 1.14g/mL, evaporated and concentrated to total nutrient (N + P)2O5+K2O) content up to 21%, density: 1.30g/mL, adding 50Kg of amino acid powder, 18Kg of chelated zinc EDTA-Zn, 20Kg of chelated iron EDTA-Fe, 17Kg of chelated copper EDTA-Cu, 15Kg of chelated manganese EDTA-Mn, 15Kg of chelated molybdenum EDTA-Mo, 15Kg of sodium perborate and boric acid into 880Kg of concentrated process wastewater, uniformly mixing, and microfiltering to obtain the amino acid-containing water-soluble fertilizer.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (6)
1. The preparation method of the amino acid-containing water-soluble fertilizer is characterized in that process wastewater generated in a compound fertilizer process is evaporated and concentrated to obtain the effective total nutrient N + P2O5+K2The O content is 21-26%, then amino acid powder is added, after being stirred uniformly, auxiliary agent is added, the auxiliary agent comprises chelated trace elements and high polymeric tetraboronAnd (4) stirring the sodium acid uniformly, and then carrying out microfiltration to obtain the amino acid-containing water-soluble fertilizer.
The method for preparing an amino acid-containing water-soluble fertilizer according to claim 1, wherein the free amino acid content of the amino acid powder is 25-30%.
2. The method for preparing an amino acid-containing water-soluble fertilizer according to claim 1 or 2, wherein the chelated trace elements comprise boron, iron, zinc, copper, manganese and molybdenum.
3. The method for preparing an amino acid-containing water-soluble fertilizer according to claim 1 or 2, wherein the process wastewater is concentrated to a density of 1.30-1.32 g/mL.
4. The method for preparing an amino acid-containing water-soluble fertilizer according to claim 1 or 2, wherein the concentrated process wastewater comprises: amino acid powder: the mass ratio of the auxiliary agent is 85-88:3-5: 9-10.
5. The method for preparing an amino acid-containing water-soluble fertilizer according to claim 5, wherein the concentrated process wastewater comprises: amino acid powder: the mass ratio of the auxiliary agent is 87:3.4: 9.6.
6. The method for preparing an amino acid-containing water-soluble fertilizer according to claim 1 or 2, wherein the adjuvant further comprises borax or boric acid.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113307676A (en) * | 2021-07-13 | 2021-08-27 | 广东生态工程职业学院 | Amino acid water-soluble fertilizer for macadamia nuts |
| CN113651647A (en) * | 2021-08-17 | 2021-11-16 | 广东凯米瑞特肥科技有限公司 | Preparation method of amino acid water-soluble fertilizer |
| CN113816806A (en) * | 2021-09-28 | 2021-12-21 | 天脊煤化工集团股份有限公司 | Humic acid water-soluble fertilizer, preparation method and application |
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| CN103755423A (en) * | 2014-01-28 | 2014-04-30 | 华中农业大学 | Amino acid liquid fertilizer and preparation method thereof |
| CN105801287A (en) * | 2016-06-06 | 2016-07-27 | 江门市智虎实业有限公司 | Water-soluble fertilizer containing amino acid and preparation method of water-soluble fertilizer |
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| CN113307676A (en) * | 2021-07-13 | 2021-08-27 | 广东生态工程职业学院 | Amino acid water-soluble fertilizer for macadamia nuts |
| CN113651647A (en) * | 2021-08-17 | 2021-11-16 | 广东凯米瑞特肥科技有限公司 | Preparation method of amino acid water-soluble fertilizer |
| CN113816806A (en) * | 2021-09-28 | 2021-12-21 | 天脊煤化工集团股份有限公司 | Humic acid water-soluble fertilizer, preparation method and application |
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