CN112142538A - Application of 2-cyclopentenone as synergist in nitrogen-containing fertilizer - Google Patents
Application of 2-cyclopentenone as synergist in nitrogen-containing fertilizer Download PDFInfo
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- CN112142538A CN112142538A CN202010979346.6A CN202010979346A CN112142538A CN 112142538 A CN112142538 A CN 112142538A CN 202010979346 A CN202010979346 A CN 202010979346A CN 112142538 A CN112142538 A CN 112142538A
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- nitrogen
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- cyclopentenone
- synergist
- ammonium
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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
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/90—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting the nitrification of ammonium compounds or urea in the soil
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea compounds
-
- 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
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
-
- 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
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/40—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting fertiliser dosage or release rate; for affecting solubility
-
- 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
- C05G5/10—Solid or semi-solid fertilisers, e.g. powders
- C05G5/12—Granules or flakes
-
- 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
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
- C05G5/37—Layered or coated, e.g. dust-preventing coatings layered or coated with a polymer
-
- 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
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
- C05G5/38—Layered or coated, e.g. dust-preventing coatings layered or coated with wax or resins
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Soil Sciences (AREA)
- Fertilizers (AREA)
Abstract
The invention relates to the field of chemical fertilizers, in particular to application of 2-cyclopentenone as a synergist in a nitrogen-containing fertilizer, wherein the addition amount of the synergist 2-cyclopentenone in the nitrogen-containing fertilizer is 1-10% of the nitrogen content in the fertilizer. The 2-cyclopentenone has a bidirectional regulation function, can inhibit the hydrolysis of urea to play a role in urease inhibition, can delay the conversion of ammonium nitrogen into nitrate nitrogen to play a role in nitrification inhibition, and has the advantages of good effect, environmental friendliness and the like.
Description
Technical Field
The invention relates to the field of chemical fertilizers, in particular to application of 2-cyclopentenone serving as a synergist in a nitrogen-containing fertilizer.
Background
The fertilizer is one of the decisive factors for high yield and high quality of grains. According to statistics, the fertilizer plays a role of 40-60% in improving the yield per unit. The nutrient utilization rate is low due to the limitation of fertilizer technology in China, and great waste and environmental problems are caused. At present, the average utilization rate of chemical fertilizers in developed countries in the world is 50-60%, wherein the utilization rate of nitrogen fertilizers is 50-70%, but the utilization rate of nitrogen fertilizers in China is only 30-35%, the utilization rate of phosphate fertilizers is 10-25%, 15-20% lower than that in developed countries, about 1300 million tons of nitrogen enter the atmosphere and water every year, and the value of the nitrogen lost through leaching, volatilization and the like is about 450-600 hundred million yuan RMB. The novel fertilizer accounts for 0.85% of the total amount of the fertilizer in China, traditional low-efficiency fertilizers are still used in most areas, and farmers apply the fertilizer excessively to increase the yield, so that waste and cost are increased, and the non-point source pollution is serious, so that the current situation seriously influences the sustainable development of agriculture in China.
The nitrogen fertilizer synergistic agent can effectively control the nitrification in soil at present, thereby reducing the loss of nitrogen element, improving the utilization rate of the nitrogen fertilizer and increasing the crop yield, and is a nitrogen fertilizer management technology with great development potential. However, few synergist products can be really popularized and applied in large scale in production so far, the existing urease inhibitor and nitrification inhibitor comprise dicyandiamide, n-butyl thiophosphoryl triamide, 3, 4-dimethylpyrazole phosphate, 2-chloro-6-trichloromethyl pyridine and the like, but the existing urease inhibitor and nitrification inhibitor has short action time, the inhibition effect is easily influenced by temperature, and when the application amount is too large, the toxicity to crops is caused, and the residues are easily left in plants; the invention discloses a method for preparing 2-cyclopentenone, which has the advantages of high degradation rate, short half-life period and the like by repeated application.
Disclosure of Invention
The invention aims to provide application of 2-cyclopentenone serving as a synergist in a nitrogen-containing fertilizer.
In order to achieve the purpose, the invention adopts the technical scheme that:
use of 2-cyclopentenone as a synergist in nitrogen-containing fertilizers.
The nitrogenous fertilizer is ammonium nitrogen and/or an ammonium nitrogen-producing fertilizer.
The ammonium nitrogen or the fertilizer for producing the ammonium nitrogen is one or more of ammonium sulfate, ammonium bicarbonate, ammonium chloride, diammonium hydrogen phosphate and urea.
The addition amount of the synergist 2-cyclopentenone in the nitrogen-containing fertilizer is 1-10% of the nitrogen content in the fertilizer.
The synergist 2-cyclopentenone is directly added into the nitrogenous fertilizer, or added into the nitrogenous fertilizer production process, or the synergist 2-cyclopentenone is directly added into the coating material of the nitrogenous fertilizer, and then the fertilizer is coated.
2-cyclopentenone has a density of 0.98g/mL (25 deg.C), boiling point of 150 deg.C, refractive index of 1.48-1.482, flash point of 42 deg.C, and is practically insoluble in water, and molecular formula of C5H6O
The preparation method of the stable fertilizer added with the synergist 2-cyclopentenone comprises the following steps:
1. preparation of stable compound fertilizer (mixture): mixing 2-cyclopentenone and zeolite powder at a certain ratio, adding the mixture and pulverized base fertilizer into a mixer via a metering device, mixing, granulating, drying, sieving, and cooling to obtain the final product.
2. Preparing urea with coating stability: the method adopts a fluidized bed spraying and coating technology, 2-cyclopentenone and a coating material are simultaneously dissolved into a volatile organic solvent, additives such as a film conditioner and a plasticizer are simultaneously added, and after the mixture is dissolved, the coating is sprayed and coated on the outer surface of fluidized granular urea to form a uniform and complete coating layer.
The stable fertilizer is suitable for crops such as corn, rice, wheat and the like, and is applied by taking 40-50kg of the stable fertilizer per mu of land as a base fertilizer, and the interval between the stable fertilizer and seeds is 8-10 cm when the stable fertilizer is applied.
The principle of the invention is as follows: after the nitrogen fertilizer is applied to soil, the nitrogen fertilizer can be rapidly hydrolyzed, the concentration of local ammonium ions in the soil is rapidly increased, and ammonia volatilization and rapid ammonia oxidation are easily caused, so that nitrate leaching and denitrification gaseous nitrogen loss are easily caused. Therefore, the hydrolysis of urea and the oxidation of ammonium ions are delayed, the generation of nitrate is reduced, the environmental pollution is reduced, and the utilization rate of nitrogen is improved. After the 2-cyclopentenone is applied to the soil, the urea hydrolysis process and the nitrification process can be regulated, so that higher ammonium nitrogen content in the soil is kept, the accumulation of nitrate is reduced, the ammonium nutrition required by the plant is increased, the ammonium nitrate ratio is regulated, and the plant is promoted to absorb the nutrients.
The innovation of the invention is that 2-cyclopentenone is used as a synergist for regulating and controlling soil nitrogen conversion, and the synergist is used for preparing a stable fertilizer, and compared with the existing slow-controlled release fertilizer and the stable fertilizer, the synergist has the following advantages:
the 1.2-cyclopentenone has a bidirectional regulation function, can inhibit hydrolysis of urea to play a role in urease inhibition, can delay conversion of ammonium nitrogen into nitrate nitrogen to play a role in nitrification inhibition, can achieve a common effect of a nitrification inhibitor and urease inhibition on the 2-cyclopentenone, and has the advantages of good effect, environmental friendliness and the like.
2. The cost is low. The 2-cyclopentenone is used as the synergist and is used for preparing the stable fertilizer to replace other various inhibitors, technical grafting and transformation are easy to implement, product quality is stable, and production management is convenient.
3. The application effect is good. The 2-cyclopentenone is used for a stable fertilizer, multiple conversion processes of nitrogen in soil can be effectively regulated and controlled by applying the 2-cyclopentenone to the soil, the fertilizer cost is reduced, potential threats of a synergist to the environment and food safety are reduced, higher ammonium ion concentration can be kept in the soil for a long time, and the generation and accumulation of nitrate are reduced.
4. Saving resources and labor. The stable fertilizer prepared by the method can be used as a base fertilizer for one-time fertilization without additional fertilization, and the purposes of saving labor and fertilizer are achieved.
Detailed Description
The following examples are presented to further illustrate embodiments of the present invention, and it should be understood that the embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the invention.
Example 1
The synergist is added into molten urea in the urea production process directly by a feeder after metering according to the proportion of 100 parts of urea (N, 46%) and 2-cyclopentenone according to 2% of the nitrogen content of the fertilizer, and the stable urea containing the 2-cyclopentenone is prepared by uniformly mixing and granulating.
Example 2
Adopting a fluidized bed technology for spray coating, and dissolving 50 parts of acrylic resin RS100 for coating and 50 parts of ethyl cellulose in 1000 parts of ethanol solvent, wherein the total miscible dosage of the acrylic resin RS100 and the ethyl cellulose is 10 percent of the weight of the fertilizer core; adding 2-cyclopentenone as synergist and zeolite powder as inorganic film as amendment in 5 weight portions and polyethylene glycol as plasticizer in 4 weight portions into the solution, mixing, and spraying onto the surface of large urea particle (N, 46%). Wherein the operating parameters of the fluidized bed coating machine are as follows: the pressure of the compressed air is 0.3Pa, the fog pressure of the spray head is 0.15Pa, and the temperature of the inlet air is 75 ℃.
Example 3
After 28.6 parts of crushed urea (N, 46%), 28.6 parts of diammonium phosphate (N, 18%) and 2-cyclopentenone (added according to 5% of the nitrogen content of the fertilizer) are fully mixed, the slow-release long-acting compound fertilizer containing the synergist 2-cyclopentenone is prepared through granulation, drying, screening and cooling.
Application example 1
Adopting an indoor culture method, using urea as a nitrogen source, setting the concentration of 2-cyclopentenone to be 10% and 1% of the fertilizer dosage respectively, and setting the urea, DCD and NBPT treatment without adding synergist in equal amount, wherein the fertilizer dosage is 0.15g N kg-1The method comprises the steps of applying dry soil, selecting brown soil as the soil, keeping the water content of the soil to be 60% of the field water capacity during the culture period, placing the soil in an incubator for constant-temperature culture, periodically ventilating and replenishing water, setting the temperature to be 25 ℃, performing destructive sampling on 3 days, 7 days, 14 days, 21 days and 28 days of culture respectively, measuring the contents of urea nitrogen, ammonium nitrogen and nitrate nitrogen in the soil, and researching the influence of a multifunctional synergist on nitrogen conversion in the soil.
The test results show that the urea content shows a rapid decrease trend in each treatment with the increase of the culture time. Wherein the 2-cyclopentenone treatment urea content is significantly higher than other treatments and the trend of decline is relatively slow. The ammonium nitrogen content showed a tendency to decrease with time in all treatments, while the ammonium nitrogen content of the treatment with the addition of the 2-cyclopentenone inhibitor was higher than that of the other treatments throughout the culture period, which exhibited a nitrification-inhibiting effect of 2-cyclopentenone, which inhibited the process of oxidation of ammonium ions to nitrate, thereby keeping the ammonium nitrogen content at a high level. On the 14 th day of culture, the inhibition effect of 2-cyclopentenone was the best, and the inhibition effect of 2-cyclopentenone at a high concentration was better than that of 2-cyclopentenone at a low concentration. During the cultivation, nitrate and ammonium nitrogen in the soil show opposite change trends, namely, the nitrate content of each treatment is gradually increased along with the prolonging of time. During the whole culture period, it can be seen that the nitrification rate inhibition was high in the treatment without applying 2-cyclopentenone, whereas the treatment with 2-cyclopentenone addition significantly inhibited the nitrate formation from day 4 onward, and exhibited significant inhibition effect until the end of the culture, and the 2-cyclopentenone inhibition effect at high concentration was better than that at low concentration.
TABLE 1 Effect of different fertiliser treatments on residual Urea content and effective Nitrogen content
Application example 2
The stable fertilizer prepared in the above example 3 was compared with treatments in which only DCD and/or NBPT was added to perform a field test on corn, and at the same time, the influence of the synergist 2-cyclopentenone on nitrogen conversion, nitrogen loss and corn yield in soil was analyzed and studied with a conventional fertilization as a control, and the effect of the synergist 2-cyclopentenone was comprehensively evaluated.
The field test was conducted at Shenyang ecological laboratory site, Chinese academy of sciences. The tests were conducted with stable fertilizers without fertilization treatment, with conventional fertilization treatment (no synergist added), with DCD addition, with NBPT addition, with DCD and NBPT addition, with 2-cyclopentenone-containing 2-LPT treatment, respectively, and the soil type was typical of brown soil. Each plot was 4m long by 5m wide, each treatment was repeated 3 times, and the planting density was 4000 plants per acre. And (3) periodically measuring the discharge amount of ammonia gas and nitrous oxide, and measuring the yield of the corn in autumn.
The results show that the effect of the treatment of the stable fertilizer containing 2-cyclopentenone is equivalent to that of the treatment of simultaneously adding DCD and NBPT, and the effect of simultaneously adding DCD and NBPT by the 2-cyclopentenone is achieved. Compared with other treatments, the method reduces ammonia gas by 5-32%, reduces nitrous oxide by 0.3-25%, and can increase corn yield by 2-10%.
TABLE 2 Effect of different fertilizer treatments on corn yield, soil Ammonia volatilization and nitrous oxide emission
The embodiment shows that the synergist 2-cyclopentenone can realize efficient utilization of nitrogen fertilizers by regulating and controlling a plurality of nitrogen element conversion ways, can be produced by carrying out small amount of investment transformation on the basis of the existing production process of the nitrogen fertilizers (ammonium sulfate, ammonium bicarbonate, urea and the like), can achieve the effect of inhibitor combination by only adding one synergist, and has the advantages of stable product performance, obvious slow release effect and long nutrient validity period.
Claims (5)
1. The application of 2-cyclopentenone as synergist of nitrogen-containing fertilizer is provided.
2. Use according to claim 1, characterized in that: the nitrogenous fertilizer is ammonium nitrogen and/or an ammonium nitrogen-producing fertilizer.
3. Use according to claim 2, characterized in that: the ammonium nitrogen or the fertilizer for producing the ammonium nitrogen is one or more of ammonium sulfate, ammonium bicarbonate, ammonium chloride, diammonium hydrogen phosphate and urea.
4. Use according to claim 1, characterized in that: the addition amount of the synergist 2-cyclopentenone in the nitrogen-containing fertilizer is 1-10% of the nitrogen content in the fertilizer.
5. Use according to claim 1, characterized in that: the synergist 2-cyclopentenone is directly added into the nitrogenous fertilizer, or added in the production process of the nitrogenous fertilizer, or added into the coating material in the preparation of the coated nitrogenous fertilizer, and then the fertilizer is coated.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010979346.6A CN112142538A (en) | 2020-09-17 | 2020-09-17 | Application of 2-cyclopentenone as synergist in nitrogen-containing fertilizer |
| CN202110269063.7A CN113024328A (en) | 2020-09-17 | 2021-03-12 | Application of compound containing 2-cyclopentenone as synergist of nitrogen-containing fertilizer |
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| CN202010979346.6A CN112142538A (en) | 2020-09-17 | 2020-09-17 | Application of 2-cyclopentenone as synergist in nitrogen-containing fertilizer |
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| CN202010979346.6A Pending CN112142538A (en) | 2020-09-17 | 2020-09-17 | Application of 2-cyclopentenone as synergist in nitrogen-containing fertilizer |
| CN202110269063.7A Pending CN113024328A (en) | 2020-09-17 | 2021-03-12 | Application of compound containing 2-cyclopentenone as synergist of nitrogen-containing fertilizer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116496125A (en) * | 2023-05-10 | 2023-07-28 | 中国科学院沈阳应用生态研究所 | Application of cyclopentanone in inhibiting soil ammonia volatilization |
| CN116621646A (en) * | 2023-05-10 | 2023-08-22 | 中国科学院沈阳应用生态研究所 | Cyclopentanone as an inhibitor for N reduction in soil 2 Application of O emission |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323542B (en) * | 2008-07-28 | 2010-12-08 | 李海涛 | Plant acid corrosion organic fertilizer |
| CN108440093A (en) * | 2018-04-17 | 2018-08-24 | 淮北市菲美得环保科技有限公司 | A kind of biological particles charcoal base manure material and preparation method thereof |
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2020
- 2020-09-17 CN CN202010979346.6A patent/CN112142538A/en active Pending
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- 2021-03-12 CN CN202110269063.7A patent/CN113024328A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116496125A (en) * | 2023-05-10 | 2023-07-28 | 中国科学院沈阳应用生态研究所 | Application of cyclopentanone in inhibiting soil ammonia volatilization |
| CN116621646A (en) * | 2023-05-10 | 2023-08-22 | 中国科学院沈阳应用生态研究所 | Cyclopentanone as an inhibitor for N reduction in soil 2 Application of O emission |
| CN116496125B (en) * | 2023-05-10 | 2023-11-07 | 中国科学院沈阳应用生态研究所 | Application of cyclopentanone in inhibiting soil ammonia volatilization |
| CN116621646B (en) * | 2023-05-10 | 2024-02-06 | 中国科学院沈阳应用生态研究所 | Cyclopentanone as an inhibitor for N reduction in soil 2 Application of O emission |
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Application publication date: 20201229 |