CN114671728B - Liquid water-soluble fertilizer and preparation method thereof - Google Patents
Liquid water-soluble fertilizer and preparation method thereof Download PDFInfo
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- CN114671728B CN114671728B CN202210356308.4A CN202210356308A CN114671728B CN 114671728 B CN114671728 B CN 114671728B CN 202210356308 A CN202210356308 A CN 202210356308A CN 114671728 B CN114671728 B CN 114671728B
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/20—Liquid fertilisers
- C05G5/23—Solutions
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C5/00—Fertilisers containing other nitrates
- C05C5/04—Fertilisers containing other nitrates containing calcium nitrate
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea compounds
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- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Fertilizers (AREA)
Abstract
The invention relates to a liquid water-soluble fertilizer and a preparation method thereof, which are characterized by comprising nitrogen and bovine serum albumin, wherein the content of the nitrogen in the liquid water-soluble fertilizer is more than 15 percent, the content of amide nitrogen in the nitrogen is more than 80 percent, and the amide nitrogen is provided by urea; the mass ratio of urea to bovine serum albumin is 92-98. The problem that liquid high nitrogen fertilizer long-term storage exists the flatulence can be solved in this application, simultaneously, can improve the quick-acting nature after the water-soluble fertile base of liquid is executed.
Description
Technical Field
The invention relates to a liquid water-soluble fertilizer and a preparation method thereof.
Background
Nitrogen is a component of chlorophyll, and chlorophyll a and chlorophyll b are nitrogen-containing compounds. Green plants undergo photosynthesis, converting light energy into chemical energy, and inorganic matter (carbon dioxide and water) into organic matter (glucose) by the action of chlorophyll. Glucose is a raw material for synthesizing various organic matters in plant bodies, and chlorophyll is a factory for manufacturing 'grains' from plant leaves. Nitrogen is also a component of the vitamin and energy systems in plants.
In the liquid water-soluble fertilizer, urea is used as a nitrogen source, and when the nitrogen content exceeds 15%, the problem of urea hydrolysis exists in the long-term storage process, namely, ammonia and carbon dioxide are generated by urea hydrolysis, so that the product has the problem of flatulence in the storage process. At present, the problem of liquid fertilizer flatulence is solved by adopting a breathable and waterproof bottle cap, generated gas overflows through air holes of the bottle cap, and partial ammonia gas overflows, so that nutrients are reduced, and the nutrient waste is caused.
The water soluble fertilizer is used as a quick-acting fertilizer, the fertilizer efficiency is required to be fast, the nutritional requirement of a high-yield crop in a fast growth period is met, the urea is amide nitrogen and cannot be directly absorbed by plants, the plants directly absorb nitrate nitrogen and a small amount of ammonium nitrogen, the urea needs to be hydrolyzed to generate ammonium nitrogen and then nitrified to generate the nitrate nitrogen to be absorbed by the plants, the transformation of the urea is influenced by the soil temperature, when the soil temperature is 10 ℃, the total transformation of the urea into the ammonium nitrogen generally needs about 7-10 days, when the soil temperature is about 20 ℃, the total transformation generally needs about 4 days, and when the soil temperature is about 30 ℃, the total transformation can be completed in about 2 days, so the problem that the amide nitrogen has a slow effect when being applied to the soil exists.
At present, the problem of slow effect caused by using amide nitrogen as a nitrogen source in a water-soluble fertilizer is not solved.
Disclosure of Invention
The invention provides a liquid water-soluble fertilizer and a preparation method thereof, which solve the technical problems that 1) the liquid high-nitrogen fertilizer is inflated during storage and does not cause nutrients; 2) The water soluble fertilizer uses amide nitrogen as a nitrogen source, and has slow effect.
In order to solve the technical problems, the invention adopts the following technical scheme:
a liquid water-soluble fertilizer contains nitrogen and bovine serum albumin, wherein the content of the nitrogen in the liquid water-soluble fertilizer is more than 15 percent, the content of amide nitrogen in the nitrogen is more than 80 percent, and the amide nitrogen is provided by urea; the mass ratio of the urea to the bovine serum albumin is 92-98.
Adding urea, bovine serum albumin and other fertilizers into water for dissolving to obtain a liquid water-soluble fertilizer;
the water is used to dissolve urea, bovine serum albumin and other fertilizers;
the content of the other fertilizers is more than or equal to 0.
The other fertilizer is one or more of water-soluble compounds containing phosphorus or potassium, water-soluble compounds containing calcium, magnesium and sulfur, water-soluble compounds containing ferrous iron, boron, manganese, zinc, copper and molybdenum, water-soluble compounds containing humic acid and water-soluble compounds containing amino acid.
The calcium and magnesium water-soluble compounds are water-soluble chelated calcium and magnesium; the water-soluble compounds of ferrous iron, manganese, zinc and copper are water-soluble chelated ferrous iron, manganese, zinc and copper.
The invention has the following beneficial technical effects:
1. this application makes bovine serum albumin and urea combine through adding bovine serum albumin in the water-soluble fertilizer of high nitrogen liquid, can solve the bloated problem of liquid high nitrogen fertilizer storage in-process.
2. Bovine serum albumin is added into the high-nitrogen liquid water-soluble fertilizer, so that the fertilizer efficiency of the amide nitrogen can be accelerated.
Detailed Description
The present invention is further illustrated by the following specific examples.
Example 1
A liquid water-soluble fertilizer contains nitrogen and bovine serum albumin, and the specific raw materials comprise 45 parts of urea, 1.05 parts of bovine serum albumin and 53.95 parts of water.
The preparation method of the liquid water-soluble fertilizer comprises the step of adding urea and bovine serum albumin into water to be dissolved, and thus the liquid water-soluble fertilizer is obtained.
The N content was 20.8.
Example 2
A liquid water-soluble fertilizer contains nitrogen and bovine serum albumin, and the specific raw materials comprise 44 parts of urea, 4 parts of calcium nitrate, 1 part of bovine serum albumin and 51 parts of water.
The preparation method of the liquid water-soluble fertilizer comprises the steps of adding urea, bovine serum albumin and calcium nitrate into water to be dissolved, and obtaining the liquid water-soluble fertilizer.
The N content was 20.9.
Example 3
A liquid water-soluble fertilizer contains nitrogen and bovine serum albumin, and the specific raw materials comprise 45 parts of urea, 4 parts of ethylene diamine tetraacetic acid disodium calcium, 1 part of bovine serum albumin and 50 parts of water.
The preparation method of the liquid water-soluble fertilizer comprises the steps of adding urea, bovine serum albumin and disodium calcium ethylene diamine tetraacetate into water to be dissolved, and obtaining the liquid water-soluble fertilizer.
The N content was 20.8.
Example 4
A liquid water-soluble fertilizer contains nitrogen and bovine serum albumin, and the specific raw materials comprise 35 parts of urea, 11 parts of monopotassium phosphate, 1 part of bovine serum albumin and 53 parts of water.
The preparation method of the liquid water-soluble fertilizer comprises the steps of adding urea, bovine serum albumin and monopotassium phosphate into water to dissolve, and obtaining the liquid water-soluble fertilizer.
The N content is 16.1, the P2O5 content is 5.6, and the K20 content is 3.7.
Example 5
A liquid water-soluble fertilizer contains nitrogen and bovine serum albumin, and the specific raw materials comprise 44 parts of urea, 6 parts of monopotassium phosphate, 5 parts of potassium nitrate, 2 parts of bovine serum albumin and 43 parts of water.
The preparation method of the liquid water-soluble fertilizer comprises the steps of adding urea, bovine serum albumin, potassium nitrate and potassium dihydrogen phosphate into water to dissolve, and obtaining the liquid water-soluble fertilizer.
The raw materials used in the application comprise 46.4% of urea N, 24.2% of N17.0% Ca in calcium nitrate, 52% of potassium sulfate K2O, 10.4% of EDTA-2NaCa Ca, 34% of potassium dihydrogen phosphate K2O, 5% of P2O and 45.5% of potassium nitrate N13% of K2O.
The N content is 21.0, the P2O5 content is 3.0, and the K20 content is 4.2.
The content of nitrogen, phosphorus and potassium is detected according to the regulation of NY-1107-2020 macroelement water-soluble fertilizer.
The beneficial effects of the present invention are further illustrated below in conjunction with experimental data:
test material
1.1 test site: shandong Eiguo Biotech Co., ltd.
1.2 test detection: observing whether the self-sealing bag is inflated or not by naked eyes; and detecting the nitrogen content, wherein parallel samples are required to be made, the error between the parallel samples of the same person is less than 0.2, and an average value is taken.
1.3 test materials: comparative 1 (the preparation method is identical to example 1 except that bovine serum albumin is replaced by water), comparative 2 (the preparation method is identical to example 1 except that bovine serum albumin is replaced by fish protein), example 1, example 2, example 3, example 4 and example 5, wherein the initial value of the content of comparative 1N is 20.8, wherein the fish protein is purchased from oceanic biotechnology limited of hagnaceae, ohne, zhejiang.
1.4 Experimental implementation: fertilizers prepared in comparison 1 (except that bovine serum albumin is not added, the preparation methods are the same as those in example 1), comparison 2 (except that bovine serum albumin is replaced by fish protein, the preparation methods are the same as those in example 1), example 1, example 2, example 3, example 4 and example 5 are put into self-sealing bags, each self-sealing bag is filled with 200ml, air is extruded after filling, and the self-sealing bags are put into a constant-temperature oven at 30 ℃ and are placed for 8 days; the length, width and thickness of the self-sealing bag are 160 × 110 × 0.05 mm.
The present application is consistent in other implementations except for differences in the respective processes.
2 results and analysis
The flatulence and the nitrogen content are shown in Table 1
TABLE 1
| Nitrogen content (%) | Condition of flatulence | |
| Comparative example 1 | 20.2 | Slightly bulge up |
| Comparison 2 | 20.6 | Slightly bulge up |
| Example 1 | 20.9 | Without change |
| Example 2 | 20.8 | Without change |
| Example 3 | 20.8 | Without change |
| Example 4 | 16.0 | Without change |
| Example 5 | 20.9 | Without change |
As can be seen from Table 1, the bovine serum albumin added in examples 1, 2, 3, 4 and 5 did not cause swelling of the bag, and the nitrogen content was unchanged before and after the addition; the comparison 1 without adding bovine serum albumin has the problems of bag expansion and nitrogen content reduction; the fish protein has the defect of flatulence, and the problem of flatulence cannot be solved by adding the fish protein as shown in comparison 2.
Experiment two
1.1 test sites: shandong fruit lovers Biotech Ltd.
1.2 test detection: chlorophyll relative content (SPAD).
1.3 test materials: comparative 1 (the preparation method is identical to that of example 1 except that bovine serum albumin is replaced by water), comparative 2 (the preparation method is identical to that of example 1 except that bovine serum albumin is replaced by fish protein), example 1, example 2, example 3, example 4 and example 5, wherein the content of comparative 1N is 20.8, the content of comparative 2N is 20, 9, the content of example 1N is 20.8, the content of example 2N is 20.8, the content of example 3N is 20.8, the content of example 4N is 16.0, and the content of example 5N is 20.8; wherein the fish protein is purchased from oceanic biotechnology, ltd, of hagnaceae, chejiang.
1.4 Experimental implementation: the method comprises the steps of dividing a small rape planting field with the square meter of 800 m into 7 cells, arranging an isolation zone in the middle of each cell with the square meter of 100 m per cell, diluting the liquid water-soluble fertilizer prepared in the steps of 1, 2, 3, 4 and 5 by 400 times by using water, dripping the liquid water-soluble fertilizer prepared in the steps of 1, 2, 3, 4 and 5 on roots of the small rape by adopting a drip irrigation mode, and detecting chlorophyll after 72h of drip irrigation, wherein the preparation method is consistent with that of example 1 except that bovine serum albumin is replaced by water, and the preparation method is consistent with that of example 1.
1.5 detection method: chlorophyll was detected using a SPAD502 chlorophyll meter.
Except for different treatments, the application has the same implementation.
2 results and analysis
The relative primary chlorophyll content (SPAD) and the relative final chlorophyll content (SPAD) are shown in Table 2
TABLE 2
| Primary chlorophyll content (SPAD) | Final chlorophyll content (SPAD) | |
| Comparative example 1 | 32.7 | 33.1 |
| Comparison 2 | 32.7 | 35.2 |
| Example 1 | 32.6 | 41.6 |
| Example 2 | 32.8 | 39.4 |
| Example 3 | 32.5 | 43.5 |
| Example 4 | 32.7 | 37.5 |
| Example 5 | 32.8 | 42.3 |
Description of the drawings: the SPAD value and the nitrogen content have a specific proportional relation, the higher the SPAD value is, the higher the nitrogen content in the blade is, and the lower the SPAD value is, the lower the nitrogen content in the blade is.
As can be seen from comparison of the data of comparative examples 1, 2, 3, 4 and 5, examples 1, 2, 3, 4 and 5, in which bovine serum albumin was added, the relative content of chlorophyll in the leaves, i.e., the conversion of amide nitrogen, was significantly increased, and the use effect of amide nitrogen was accelerated. Although the fish protein is widely applied to fertilizers and mainly plays roles in improving coloring, promoting rooting, resisting diseases, protecting flowers and fruits, comparison of data in comparison 2 and example 1 shows that the fish protein cannot improve the quick-acting performance of amide nitrogen well, and although the fish protein has certain influence on chlorophyll, the fish protein is considered to be the effect brought by amino acids contained in the fish protein by the applicant, because the fish protein currently applied to agriculture contains polypeptides, amino acids and oligosaccharides, and bovine serum albumin is not used for promoting the transformation of the amide nitrogen in soil as in the application.
As can be seen from the comparison of the data of example 1, example 2 and example 3, the addition of the inorganic calcium in example 2 reduces the content of SPAD in the plant leaves, while the addition of the chelated calcium in example 3 increases the content of SPAD in the plant leaves, which indicates that the trace elements in the addition have different forms and have certain influence on the promotion of the conversion of the amide nitrogen in the soil by the bovine serum albumin.
Claims (4)
1. The liquid water-soluble fertilizer is characterized by comprising nitrogen and bovine serum albumin, wherein the content of the nitrogen in the liquid water-soluble fertilizer is more than 15%, the content of amide nitrogen in the nitrogen is more than 80%, and the amide nitrogen is provided by urea; the mass ratio of the urea to the bovine serum albumin is 92-98.
2. The method for preparing the liquid water-soluble fertilizer as claimed in claim 1, wherein the liquid water-soluble fertilizer is obtained by dissolving urea, bovine serum albumin and other fertilizers in water;
the water is used to dissolve urea, bovine serum albumin and other fertilizers;
the content of the other fertilizers is more than or equal to 0.
3. The liquid water-soluble fertilizer according to claim 2, wherein said other fertilizer is one or more of water-soluble compounds containing phosphorus or potassium, water-soluble compounds containing calcium, magnesium and sulfur, water-soluble compounds containing ferrous iron, boron, manganese, zinc, copper and molybdenum, water-soluble compounds containing humic acid and water-soluble compounds containing amino acid.
4. A liquid water-soluble fertilizer according to claim 3, wherein said water-soluble compounds of calcium and magnesium are water-soluble chelated calcium and magnesium; the water-soluble compounds of ferrous iron, manganese, zinc and copper are water-soluble chelated ferrous iron, manganese, zinc and copper.
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| CN202210356308.4A CN114671728B (en) | 2022-04-06 | 2022-04-06 | Liquid water-soluble fertilizer and preparation method thereof |
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| CN114671728B true CN114671728B (en) | 2022-11-25 |
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| JP2006265199A (en) * | 2005-03-25 | 2006-10-05 | Oita Univ | Foliar-surface spraying agent and method for producing the same |
| CN104114028A (en) * | 2012-02-15 | 2014-10-22 | 加尔各答大学 | Plant nutrient coated nanoparticles and methods for their preparation and use |
| CN106645675A (en) * | 2017-01-03 | 2017-05-10 | 长沙中生众捷生物技术有限公司 | Detecting reagent of urea nitrogen and detecting test paper of urea nitrogen |
| CN107298614A (en) * | 2017-07-28 | 2017-10-27 | 四川山牧农业开发有限公司 | A kind of fruit tree nutrition agent |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090305888A1 (en) * | 2006-01-27 | 2009-12-10 | Yuncong Li | Materials and Methods for Providing Oxygen to Improve Seed Germination and Plant Growth |
| US11014835B2 (en) * | 2017-01-20 | 2021-05-25 | Nanjing University | Method of measuring concentration of dissolved organic nitrogen in sewage |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006265199A (en) * | 2005-03-25 | 2006-10-05 | Oita Univ | Foliar-surface spraying agent and method for producing the same |
| CN104114028A (en) * | 2012-02-15 | 2014-10-22 | 加尔各答大学 | Plant nutrient coated nanoparticles and methods for their preparation and use |
| CN106645675A (en) * | 2017-01-03 | 2017-05-10 | 长沙中生众捷生物技术有限公司 | Detecting reagent of urea nitrogen and detecting test paper of urea nitrogen |
| CN107298614A (en) * | 2017-07-28 | 2017-10-27 | 四川山牧农业开发有限公司 | A kind of fruit tree nutrition agent |
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