CN112209765A - Synergist, synergistic potassium fertilizer and preparation method thereof - Google Patents
Synergist, synergistic potassium fertilizer and preparation method thereof Download PDFInfo
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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
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D1/00—Fertilisers containing potassium
- C05D1/02—Manufacture from potassium chloride or sulfate or double or mixed salts thereof
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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
- C05G3/40—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting fertiliser dosage or release rate; for affecting solubility
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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
- C05G5/10—Solid or semi-solid fertilisers, e.g. powders
- C05G5/12—Granules or flakes
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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
Abstract
The invention discloses a synergist, a synergistic potash fertilizer and a preparation method thereof, wherein the synergist comprises the following components: alginate, carboxymethyl chitosan and medium trace elements. Alginate, carboxymethyl chitosan and medium and trace elements are compounded, wherein the alginate and the carboxymethyl chitosan play a synergistic effect, so that the growth of root systems of crops can be stimulated, the absorption of potassium is promoted, the utilization efficiency of potassium fertilizers by the crops is improved, a certain protection effect on the medium and trace elements is realized, and the soil fixation is prevented; meanwhile, the medium and trace elements such as magnesium, zinc, iron, boron and the like are contained, and the requirement of crops on the medium and trace elements in the growth period can be met. Therefore, by the combination of the synergist, the growth of crops can be effectively promoted, the quality of the crops can be obviously improved, and the effects of increasing yield and improving quality are achieved.
Description
Technical Field
The invention belongs to the field of fertilizers, and particularly relates to a synergist, a synergistic potash fertilizer and a preparation method thereof.
Background
Potassium is one of three elements of fertilizer, is known as a quality element, and has the important function in the aspects of guaranteeing agricultural production and grain safety. The potash fertilizer exists in a potassium ion state after being applied to soil, is easy to leach and run off along with water in the soil, and is added with the problems of excessive and unreasonable application of the existing commonly existing potash fertilizer, so that the loss of the potash fertilizer is aggravated, and the utilization rate of the potash fertilizer is reduced. At present, the variation range of different areas with different utilization rates of potassium fertilizer of main grain crops in China is 21.2-35.9%, the average variation range is 31.3%, particularly the utilization rate of potassium on crops such as fruit trees, vegetables and rice is lower, and the variation range is in a trend of reducing compared with the variation range in the past year. However, as the main potassium fertilizer consuming countries in the world, China is a country with serious shortage of potassium resources, and the reserve of potassium resources (K)2O) only accounts for 7.93 percent of the total reserves in the world, the dependence of the potash fertilizer in China on foreign countries is high, and nearly 50 percent of the potash fertilizer needs to be imported from the foreign countries, thus seriously threatening the grain safety in China.
The research on modification and synergism of the potash fertilizer is less, and the market still mainly uses conventional potassium chloride and potassium sulfate. Related modified potash fertilizer product patents gradually appear in recent years, wherein patent CN105061083A discloses a preparation method of a potash fertilizer controlled-release coating agent, common potash fertilizer is coated after a film forming agent, an emulsifier, a plasticizer, a pore-forming agent and a solvent react to form the controlled-release potash fertilizer, the release speed of the potash fertilizer can be controlled, the loss of the potash fertilizer is reduced, and the utilization rate of the potash fertilizer is improved; patent CN102653484B discloses a controlled release potash fertilizer and a preparation method thereof, the components include potassium sulfate or potassium chloride, humic acid, bentonite, a binder and the like, a physical adhesive coating process is utilized to coat a layer of humic acid-containing film on the surface of granular potassium sulfate or potassium chloride to form a coated controlled release potash fertilizer; the patent CN105175197B discloses a water-retaining high-molecular slow-release nitrogen-potassium fertilizer and a preparation method thereof, wherein in the preparation process of the nitrogen-potassium fertilizer, a macromolecular polymer with a network structure is formed in the fertilizer through chemical reaction, so that the fertilizer has good water absorption performance and can achieve slow-release performance; in patent CN104557287B, a green ecological potash fertilizer and a preparation method thereof are disclosed, wherein raw materials include potash fertilizer, water hyacinth, phosphate rock and active conditioner, the green ecological potash fertilizer uses water hyacinth as a main organic matter, which can avoid leaching loss of the potash fertilizer in soil and improve the soil at the same time. The modification of the potash fertilizer by the above patents mainly has two aspects, one is that the potassium fertilizer slow release purpose is achieved mainly through the forms of coating or chemical reaction, but the problems of complex process, high cost and the like exist, and the large-scale application in the agricultural field is limited; and secondly, the purpose of modifying and enhancing the potash fertilizer is achieved by adding natural organic substances, the effects of promoting the growth of crops and improving soil are good, but the effects of reducing the loss of potassium and the like are unstable.
Therefore, the existing potash fertilizer needs to be improved.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the invention aims to provide a synergist, a synergistic potassium fertilizer and a preparation method thereof, wherein the synergist can effectively promote the growth of crops, can obviously improve the quality of the crops, and has the effects of increasing the yield and improving the quality.
In one aspect of the invention, a potentiator is provided. According to an embodiment of the invention, the synergist comprises: alginate, carboxymethyl chitosan and medium trace elements.
The synergist is used for the synergism of the potash fertilizer, and alginate, carboxymethyl chitosan and medium and trace elements are compounded, wherein the alginate and the carboxymethyl chitosan play a synergistic effect, so that the growth of root systems of crops can be stimulated, the absorption of potassium is promoted, the utilization efficiency of the potash fertilizer by the crops is improved, meanwhile, the synergist plays a certain protection role on the medium and trace elements, and the soil is prevented from being fixed; meanwhile, the medium and trace elements such as magnesium, zinc, iron, boron and the like are contained, and the requirement of crops on the medium and trace elements in the growth period can be met. Therefore, by the combination of the synergist, the growth of crops can be effectively promoted, the quality of the crops can be obviously improved, and the effects of increasing yield and improving quality are achieved.
In addition, the synergist according to the above embodiment of the present invention may also have the following additional technical features:
in some embodiments of the present invention, the mass ratio of the alginate to the carboxymethyl chitosan to the medium trace element is (20-65): (5-17): (7-20), preferably (30-55): (8-13): (10.5-15). Therefore, the fertilizer can promote the growth of crops, improve the absorption and utilization of potassium fertilizer by the crops and meet the requirements of the crops on high-efficiency medium and trace nutrient elements.
In some embodiments of the invention, the medium trace element comprises at least one of magnesium, zinc, iron, and boron. Therefore, the requirements of the crop growth on medium and trace elements can be met.
In some embodiments of the present invention, the medium trace elements include magnesium, zinc, iron and boron, and the mass ratio of the magnesium, the zinc, the iron and the boron is (3-8): (2-5): (1-4): (1-3), preferably (4-6): (3-4): (2-3): (1.5-2). Therefore, the requirements of the crop growth on medium and trace elements can be met.
In some embodiments of the invention, the alginate comprises at least one of alginic acid, sodium alginate and potassium alginate, preferably potassium alginate.
In some embodiments of the invention, the magnesium element is derived from at least one of magnesium sulfate monohydrate, magnesium sulfate heptahydrate, and magnesium oxide, preferably magnesium sulfate monohydrate.
In some embodiments of the invention, the zinc element is derived from at least one of zinc sulfate monohydrate, zinc sulfate heptahydrate, and EDTA-Zn, preferably zinc sulfate monohydrate and EDTA-Zn.
In some embodiments of the invention, the iron element is derived from at least one of ferrous sulfate heptahydrate, EDTA-Fe and EDDHA-Fe, preferably ferrous sulfate heptahydrate and EDTA-Fe.
In some embodiments of the invention, the boron element is derived from at least one of sodium tetraborate decahydrate, sodium octaborate tetrahydrate, and boric acid, preferably sodium tetraborate decahydrate.
In a second aspect of the invention, the invention provides a synergistic potash fertilizer. According to an embodiment of the invention, the synergistic potash fertilizer includes: the organic fertilizer comprises a potash fertilizer, bentonite, a synergist and an organic high molecular polymer, wherein the synergist is the synergist.
According to the synergistic potash fertilizer provided by the embodiment of the invention, the synergist which can effectively promote the growth of crops and can significantly improve the quality of the crops is compounded with the potash fertilizer, bentonite and the organic high polymer, wherein the ion exchange property and the adsorbability of the bentonite can adsorb potassium ions, potassium loss is reduced, the organic high polymer has a huge specific surface area, a net structure can be formed besides the adsorption effect on potassium ions, the potassium can be protected, the leaching loss of the potash fertilizer is reduced, the slow release performance is realized, the preferred sodium carboxymethylcellulose is a natural organic high polymer, the sodium carboxymethylcellulose can be rapidly decomposed under natural conditions, no environmental pollution is caused by residue, and the potassium fertilizer effectiveness and the potassium fertilizer granulation rate can be improved through the synergistic effect of the bentonite and the high polymer. Therefore, the synergistic potash fertilizer is comprehensive in nutrition, can supplement large and medium trace nutrient elements for crops, promotes the growth of the crops, improves the quality of the crops, and has the effects of preventing potassium loss and improving the effectiveness of potassium.
In addition, the synergistic potash fertilizer according to the above embodiment of the present invention may also have the following additional technical features:
in some embodiments of the present invention, the potash fertilizer is contained in an amount of 82 to 95 parts by mass, the bentonite is contained in an amount of 2 to 8 parts by mass, the synergist is contained in an amount of 2 to 6 parts by mass, and the organic high molecular polymer is contained in an amount of 1 to 4 parts by mass, based on 100 parts by mass of the synergistic potash fertilizer. Therefore, the growth of crops and the absorption and utilization of potassium are promoted, the requirements of the crops on high-efficiency potassium and medium and trace nutrient elements can be met, and a certain slow release effect is achieved.
In some embodiments of the invention, the potash fertilizer is derived from at least one of potassium sulfate, potassium chloride, potassium nitrate and potassium dihydrogen phosphate, preferably potassium chloride and potassium sulfate.
In some embodiments of the invention, the bentonite is selected from at least one of sodium bentonite, calcium bentonite and hydrogen bentonite, preferably sodium bentonite.
In some embodiments of the present invention, the organic high molecular polymer is selected from at least one of sodium carboxymethyl cellulose, sodium carboxymethyl starch, and polyacrylamide, preferably sodium carboxymethyl cellulose.
In a third aspect of the invention, the invention provides a method for preparing the synergistic potassium fertilizer. According to an embodiment of the invention, the method comprises: mixing a synergist, a potash fertilizer, bentonite and an organic high molecular polymer, then carrying out extrusion granulation, and then crushing, granulating and screening to obtain the synergistic potash fertilizer, wherein the synergist is the synergist. Therefore, the method has simple process, does not increase additional processing cost, produces the synergistic potash fertilizer with comprehensive nutrition, can supplement large and medium trace nutrient elements for crops, promotes the growth of the crops, improves the quality of the crops, simultaneously has the functions of preventing potassium loss and improving the effectiveness of the potassium, can improve the quality of the products, can reduce the loss of the potash fertilizer, improves the utilization rate of the potash fertilizer, achieves the maximization of the economic effect of the potash fertilizer, and realizes the quality-improving and slow-release effects of the potash fertilizer.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Detailed Description
The following detailed description of the embodiments of the present invention is intended to be illustrative, and not to be construed as limiting the invention.
In one aspect of the invention, a potentiator is provided. According to an embodiment of the present invention, the synergist comprises alginate, carboxymethyl chitosan and medium trace elements. The inventor finds that the alginate, the carboxymethyl chitosan and the medium and trace elements are compounded, wherein the alginate is used as a marine algae extract, contains various amino acids, polysaccharides, natural biological stimulin and the like, can improve the photosynthetic efficiency, and can improve the absorption and utilization of soil nutrients, water and the like and the transportation of photosynthetic products of crops, thereby achieving the effects of promoting growth and resisting stress, the carboxymethyl chitosan can help the crops to establish a robust root system and has good stimulation effect on the root system of the crops, the alginate and the carboxymethyl chitosan play a synergistic effect, the effects of promoting the growth of the crops, stimulating the growth of the root system, promoting the absorption of potassium and improving the utilization efficiency of potassium fertilizer of the crops are more prominent, meanwhile, the alginate and the carboxymethyl chitosan are rich in functional groups such as carboxyl, hydroxyl and the like, have a chelating effect on the trace elements and can activate the trace elements in the soil, the trace elements in the synergist can be protected, the soil is prevented from being fixed, and the effectiveness is improved; meanwhile, the medium and trace elements such as magnesium, zinc, iron, boron and the like are contained, so that the requirement of the medium and trace elements in the growth period of crops can be met. Therefore, by the combination of the synergist, the growth of crops can be effectively promoted, the quality of the crops can be obviously improved, and the effects of increasing yield and improving quality are achieved.
Further, in the synergist, the mass ratio of alginate to carboxymethyl chitosan to medium and trace elements is (20-65): (5-17): (7-20), for example (20, 20.1 … … 64.9.9, 65): (5, 5.1 … … 16.9, 17): (7, 7.1 … … 11.9.9, 20). The inventor finds that the synergist is mainly alginate, the root promoting effect of the synergist is highlighted after the synergist is matched with the carboxymethyl chitosan with the content on the basis of growth promotion and stress resistance of the alginate, and meanwhile, the addition of the trace elements with the content can improve the quality of crops in a synergistic manner with potassium, so that the comprehensive yield and quality increasing effect is achieved, the quality of the crops can be obviously improved, and the yield and quality increasing effects are achieved. Preferably, the mass ratio of the alginate to the carboxymethyl chitosan to the medium and trace elements is (30-55): (8-13): (10.5-15). The medium trace elements comprise at least one of magnesium elements, zinc elements, iron elements and boron elements, preferably the medium trace elements comprise the magnesium elements, the zinc elements, the iron elements and the boron elements at the same time, and the mass ratio of the magnesium elements to the zinc elements to the iron elements to the boron elements is (3-8): (2-5): (1-4): (1-3), for example (3, 3.1 … … 7.9.9, 8): (2, 2.1 … … 4.9.9, 5): (1, 1.1 … … 3.9.9, 4): (1, 1.1 … … 2.9.2.9, 3). The inventor finds that magnesium, zinc, iron, boron and the like are used as essential medium trace elements for plants, the addition proportion can meet the nutrient requirement of crops, and the effect is particularly remarkable in the aspect of improving the quality, but if the magnesium, the zinc, the iron, the boron and the like are added too much, the toxicity is easily caused to the crops. Preferably, the mass ratio of the magnesium element, the zinc element, the iron element and the boron element is (4-6): (3-4): (2-3): (1.5-2).
Further, the alginate in the synergist comprises at least one of alginic acid, sodium alginate and potassium alginate, preferably potassium alginate; the magnesium element is at least one of magnesium sulfate monohydrate, magnesium sulfate heptahydrate and magnesium oxide, and magnesium sulfate monohydrate is preferred; the zinc element is at least one of zinc sulfate monohydrate, zinc sulfate heptahydrate and EDTA-Zn, preferably the zinc sulfate monohydrate and the EDTA-Zn; the iron element is at least one of ferrous sulfate heptahydrate, EDTA-Fe and EDDHA-Fe, preferably ferrous sulfate heptahydrate and EDTA-Fe; the boron element is at least one of sodium tetraborate decahydrate, sodium octaborate tetrahydrate and boric acid, and preferably sodium tetraborate decahydrate.
In a second aspect of the invention, the invention provides a synergistic potash fertilizer. According to an embodiment of the invention, the synergistic potash fertilizer comprises a potash fertilizer, bentonite, a synergist and an organic high molecular polymer, wherein the synergist is the synergist. The inventor finds that the synergist which can effectively promote the growth of crops, can obviously improve the quality of the crops and has the effects of increasing the yield and improving the quality is compounded with the potash fertilizer, the bentonite and the organic high polymer, wherein the ion exchange property and the adsorbability of the bentonite can play a role in adsorbing potassium ions, less potassium loss is caused, the organic high polymer has a huge specific surface area, can form a net structure besides the function of adsorbing the potassium ions, plays a role in protecting the potassium, reduces the leaching loss of the potash fertilizer and has slow release performance, and the preferred sodium carboxymethyl cellulose is the natural organic high polymer, can be quickly decomposed under natural conditions without causing environmental pollution, and simultaneously, the potash fertilizer becomes a polymerization whole through the synergistic effect of the bentonite and the high polymer, so that the effectiveness of the potash fertilizer and the granulation rate of the potash fertilizer are improved. Therefore, the synergistic potash fertilizer is comprehensive in nutrition, can supplement large and medium trace nutrient elements for crops, promotes the growth of the crops, improves the quality of the crops, and has the effects of preventing potassium loss and improving the effectiveness of potassium.
Further, based on 100 parts by mass of the synergistic potash fertilizer, the content of the potash fertilizer is 82-95 parts by mass, the content of bentonite is 2-8 parts by mass, the content of the synergist is 2-6 parts by mass, and the content of the organic high molecular polymer is 1-4 parts by mass, for example, based on 100 parts by mass of the synergistic potash fertilizer, the content of the potash fertilizer is 82 parts by mass, 82.1 parts by mass, … … 94.9.9 parts by mass, 95 parts by mass, the content of bentonite is 2 parts by mass, 2.1 parts by mass, … … 7.9.9 parts by mass, 8 parts by mass, the content of the synergist is 2 parts by mass, 2.1 parts by mass, … … 5.9.9 parts by mass, 6 parts by mass, and the content of the organic high molecular polymer is 1 part by mass, 1.1 part by mass, … … 3.9.9 parts by mass, 4 parts by mass. The inventor finds that the total addition amount of bentonite, a synergist and an organic high molecular polymer in the synergistic potash fertilizer is 5-18 parts by mass, the addition amount is relatively small, the basic physicochemical property and market sale of the potash fertilizer are not affected, if the addition amount of the bentonite and the organic high molecular polymer is too small, the modified slow-release effect on the potash fertilizer is not achieved, if the addition amount is too large, the graining property of the potash fertilizer is affected, and meanwhile, the synergist has a trace efficient effect, so that the synergistic potash fertilizer obtained by adding the components can achieve an efficient effect.
Further, in the synergistic potassium fertilizer, the potassium fertilizer is at least one of potassium sulfate, potassium chloride, potassium nitrate and potassium dihydrogen phosphate, and preferably potassium chloride and potassium sulfate; the bentonite is selected from at least one of sodium bentonite, calcium bentonite and hydrogen bentonite, and preferably the sodium bentonite; the organic high molecular polymer is at least one selected from sodium carboxymethyl cellulose, sodium carboxymethyl starch and polyacrylamide, and preferably sodium carboxymethyl cellulose. Specifically, sodium carboxymethylcellulose is a natural organic high molecular polymer, can be rapidly decomposed under natural conditions, and does not remain to cause environmental pollution.
It is to be noted that the features and advantages described above for the synergist also apply to the synergistic potassium fertilizer and are not described in further detail here.
In a third aspect of the invention, the invention provides a method for preparing the synergistic potassium fertilizer. According to an embodiment of the invention, the method comprises: mixing a synergist, a potash fertilizer, bentonite and an organic high molecular polymer, then carrying out extrusion granulation, and then crushing, granulating and screening to obtain the synergistic potash fertilizer, wherein the synergist is the synergist. Therefore, the method has simple process, does not increase additional processing cost, produces the synergistic potash fertilizer with comprehensive nutrition, can supplement large and medium trace nutrient elements for crops, promotes the growth of the crops, improves the quality of the crops, simultaneously has the functions of preventing potassium loss and improving the effectiveness of the potassium, can improve the quality of the products, can reduce the loss of the potassium fertilizer, improves the utilization rate of the potassium fertilizer, achieves the maximization of the economic effect of the potassium fertilizer, and realizes the quality-improving and slow-release targets of the potassium fertilizer. It is noted that the features and advantages described above for the synergistic potash fertilizer are also applicable to the method for preparing the synergistic potash fertilizer, and are not described herein again.
Compared with the prior common potash fertilizer, the synergistic potash fertilizer has the following advantages:
(1) the synergist adopted by the invention contains medium and trace nutrient elements such as magnesium, zinc, iron, boron and the like, can fully meet the requirements of crops on various nutrient elements, and substances such as alginate, carboxymethyl chitosan and the like have the functions of stimulating root growth, improving the drought resistance and lodging resistance of the crops, increasing the crop yield and improving the crop quality, and are particularly suitable for economic crops which like potassium.
(2) The synergistic potash fertilizer is processed by adding substances such as a synergist, bentonite, an organic high polymer and the like in the extrusion granulation process of a common potash fertilizer, does not change the original production and processing process of the potash fertilizer, has the advantages of simple process, low processing cost, high granulation rate and particle strength of the potash fertilizer, no caking during storage, good fluidity and the like, and can be used as a BB fertilizer raw material or directly applied.
(3) The bentonite and the organic high molecular polymer contained in the synergistic potash fertilizer have a certain slow release effect on the potash fertilizer, have a protection effect on potassium, can prevent the potassium from losing with water in sandy soil and leaching soil, improve the effectiveness and the long-acting performance of the potassium in the soil, avoid secondary pollution and reduce the agricultural production cost.
The following embodiments of the present invention are described in detail, and it should be noted that the following embodiments are exemplary only, and are not to be construed as limiting the present invention. In addition, all reagents used in the following examples are commercially available or can be synthesized according to methods herein or known, and are readily available to those skilled in the art for reaction conditions not listed, if not explicitly stated.
Example 1
The synergistic potash fertilizer comprises: 82 parts by mass of potassium chloride (K)2The mass fraction of O is 60%), 8 parts by mass of sodium bentonite, 6 parts by mass of synergist and 4 parts by mass of sodium carboxymethylcellulose, wherein based on 100 parts by mass of the synergist, the sodium bentonite contains 20 parts by mass of potassium alginate, 5 parts by mass of carboxymethyl chitosan, 35 parts by mass of magnesium sulfate monohydrate, 14 parts by mass of zinc sulfate monohydrate, 12 parts by mass of ferrous sulfate monohydrate and 14 parts by mass of sodium octaborate tetrahydrate.
The method for preparing the synergistic potash fertilizer comprises the following steps: the potassium alginate, the carboxymethyl chitosan and the medium and trace element components are mixed uniformly in a mixer according to a certain proportion to form a synergist, then the synergist is further mixed with potassium chloride, sodium bentonite and sodium carboxymethyl cellulose raw materials uniformly, the mixture is conveyed into a hydraulic extrusion granulator to be compressed into clusters, and the clusters are crushed, granulated and screened to form a qualified synergistic potash fertilizer finished product.
Example 2
The synergistic potash fertilizer comprises: 95 parts by mass of potassium chloride (K)260 percent of O by mass), 2 parts by mass of sodium bentonite, 2 parts by mass of synergist and 1 part by mass of sodium carboxymethylcellulose, wherein based on 100 parts by mass of synergist, 65 parts by mass of potassium alginate and 17 parts by mass of sodium carboxymethylcellulose are containedCarboxymethyl chitosan contains 5 parts by mass of magnesium oxide, 5 parts by mass of zinc sulfate monohydrate, 3 parts by mass of ferrous sulfate monohydrate, and 5 parts by mass of sodium octaborate tetrahydrate.
The method for preparing the synergistic potash fertilizer comprises the following steps: the potassium alginate, the carboxymethyl chitosan and the medium and trace element components are mixed uniformly in a mixer according to a certain proportion to form a synergist, then the synergist is further mixed with potassium chloride, sodium bentonite and sodium carboxymethyl cellulose raw materials uniformly, the mixture is conveyed into a hydraulic extrusion granulator to be compressed into clusters, and the clusters are crushed, granulated and screened to form a qualified synergistic potash fertilizer finished product.
Example 3
The synergistic potash fertilizer comprises: 86 parts by mass of potassium chloride (K)2The mass fraction of O is 60%), 6 parts by mass of sodium bentonite, 5 parts by mass of synergist and 3 parts by mass of polyacrylamide, wherein based on 100 parts by mass of the synergist, the sodium bentonite contains 30 parts by mass of potassium alginate, 8 parts by mass of carboxymethyl chitosan, 23 parts by mass of magnesium sulfate monohydrate, 17 parts by mass of EDTA-Zn, 15 parts by mass of EDTA-Fe and 7 parts by mass of sodium octaborate tetrahydrate.
The method for preparing the synergistic potash fertilizer comprises the following steps: the potassium alginate, the carboxymethyl chitosan and the medium and trace element components are mixed uniformly in a mixer according to a certain proportion to form a synergist, then the synergist is further mixed with potassium chloride, sodium bentonite and polyacrylamide raw materials uniformly, the mixture is conveyed into a hydraulic extrusion granulator to be compressed into clusters, and the clusters are crushed, granulated and screened to form a qualified synergistic potassium fertilizer finished product.
Example 4
The synergistic potash fertilizer comprises: 91 parts by mass of potassium chloride (K)2The mass fraction of O is 60%), 3 parts by mass of sodium bentonite, 3 parts by mass of synergist and 3 parts by mass of sodium carboxymethyl starch, wherein based on 100 parts by mass of synergist, 47 parts by mass of potassium alginate, 13 parts by mass of carboxymethyl chitosan, 10 parts by mass of magnesium oxide, 11 parts by mass of zinc sulfate monohydrate, 9 parts by mass of ferrous sulfate monohydrate and 10 parts by mass of sodium octaborate tetrahydrate are contained.
The method for preparing the synergistic potash fertilizer comprises the following steps: the potassium alginate, the carboxymethyl chitosan and the medium and trace element components are mixed uniformly in a mixer according to a certain proportion to form a synergist, then the synergist is further mixed with potassium chloride, sodium bentonite and sodium carboxymethyl starch, the mixture is conveyed into a hydraulic extrusion granulator to be compressed into a mass, and the mass is crushed, granulated and screened to form a qualified synergistic potassium fertilizer finished product.
Example 5
The synergistic potash fertilizer comprises: 88 parts by mass of potassium chloride (K)2The mass fraction of O is 60%), 5 parts by mass of sodium bentonite, 4 parts by mass of synergist and 3 parts by mass of sodium carboxymethylcellulose, wherein based on 100 parts by mass of the synergist, the sodium bentonite contains 40 parts by mass of potassium alginate, 10 parts by mass of carboxymethyl chitosan, 18 parts by mass of magnesium sulfate monohydrate, 16 parts by mass of zinc sulfate monohydrate, 8 parts by mass of ferrous sulfate monohydrate and 8 parts by mass of sodium octaborate tetrahydrate.
The method for preparing the synergistic potash fertilizer comprises the following steps: the potassium alginate, the carboxymethyl chitosan and the medium and trace element components are mixed uniformly in a mixer according to a certain proportion to form a synergist, then the synergist is further mixed with potassium chloride, sodium bentonite and sodium carboxymethyl cellulose raw materials uniformly, the mixture is conveyed into a hydraulic extrusion granulator to be compressed into clusters, and the clusters are crushed, granulated and screened to form a qualified synergistic potash fertilizer finished product.
Comparative example 1
The synergistic potash fertilizer comprises: 82 parts by mass of potassium chloride (K)2The mass fraction of O is 60%), 8 parts by mass of sodium bentonite, 6 parts by mass of synergist and 4 parts by mass of sodium carboxymethylcellulose, wherein based on 100 parts by mass of the synergist, the sodium bentonite contains 25 parts by mass of potassium alginate, 35 parts by mass of magnesium sulfate monohydrate, 14 parts by mass of zinc sulfate monohydrate, 12 parts by mass of ferrous sulfate monohydrate and 14 parts by mass of sodium octaborate tetrahydrate.
The method for preparing the synergistic potash fertilizer comprises the following steps: the potassium alginate and the medium and trace element components are mixed uniformly in a mixer according to a certain proportion to form a synergist, then the synergist is further mixed with potassium chloride, sodium bentonite and sodium carboxymethylcellulose raw materials uniformly, the mixture is conveyed into a hydraulic extrusion granulator to be compressed into a briquette, and the briquette is crushed, granulated and screened to form a qualified synergistic potassium fertilizer finished product.
Comparative example 2
The synergistic potash fertilizer comprises: 82 parts by mass of potassium chloride (K)2The mass fraction of O is 60%), 8 parts by mass of sodium bentonite, 6 parts by mass of synergist and 4 parts by mass of sodium carboxymethylcellulose, wherein based on 100 parts by mass of the synergist, the sodium bentonite contains 25 parts by mass of carboxymethyl chitosan, 35 parts by mass of magnesium sulfate monohydrate, 14 parts by mass of zinc sulfate monohydrate, 12 parts by mass of ferrous sulfate monohydrate and 14 parts by mass of sodium octaborate tetrahydrate.
The method for preparing the synergistic potash fertilizer comprises the following steps: uniformly mixing carboxymethyl chitosan and various medium and trace element components in a mixer according to a proportion to form a synergist, further uniformly mixing the synergist with potassium chloride, sodium bentonite and sodium carboxymethyl cellulose raw materials, conveying the mixture to a hydraulic extrusion granulator to be compressed into clusters, and crushing, granulating and screening the clusters to form a qualified synergistic potassium fertilizer finished product.
Comparative example 3
The synergistic potash fertilizer comprises: 95 parts by mass of potassium chloride (K)2The mass fraction of O is 60%), 2 parts by mass of sodium bentonite, 2 parts by mass of synergist and 1 part by mass of sodium carboxymethylcellulose, wherein based on 100 parts by mass of the synergist, the sodium bentonite contains 82 parts by mass of potassium alginate, 5 parts by mass of magnesium oxide, 5 parts by mass of zinc sulfate monohydrate, 3 parts by mass of ferrous sulfate monohydrate and 5 parts by mass of sodium octaborate tetrahydrate.
The method for preparing the synergistic potash fertilizer comprises the following steps: the potassium alginate and the medium and trace element components are mixed uniformly in a mixer according to a certain proportion to form a synergist, then the synergist is further mixed with potassium chloride, sodium bentonite and sodium carboxymethylcellulose uniformly, then the mixture is conveyed into a hydraulic extrusion granulator to be compressed into a briquette, and the briquette is crushed, granulated and screened to form a qualified synergistic potassium fertilizer finished product.
Comparative example 4
The synergistic potash fertilizer comprises: 95 parts by mass of potassium chloride (K)2The mass fraction of O is 60%), 2 parts by mass of sodium bentonite, 2 parts by mass of synergist and 1 part by mass of sodium carboxymethylcellulose, wherein based on 100 parts by mass of the synergist, 82 parts by mass of carboxymethyl chitosan is contained, 5 parts by mass of magnesium oxide is contained, 5 parts by mass of zinc sulfate monohydrate is contained, 3 parts by mass of ferrous sulfate monohydrate is contained, and 5 parts by mass of sodium octaborate tetrahydrate is contained.
The method for preparing the synergistic potash fertilizer comprises the following steps: uniformly mixing carboxymethyl chitosan and various medium and trace element components in a mixer according to a proportion to form a synergist, further uniformly mixing the synergist with potassium chloride, sodium bentonite and sodium carboxymethyl cellulose raw materials, conveying the mixture to a hydraulic extrusion granulator to be compressed into clusters, and crushing, granulating and screening the clusters to form a qualified synergistic potassium fertilizer finished product.
Comparative example 5
Common potash fertilizer (K)2The mass fraction of O is 60%).
The synergistic potassium fertilizers of examples 1-5, the synergistic potassium fertilizers of comparative examples 1-4 and the common potassium fertilizer of comparative example 5 were tested for their fertilizer effect on pear trees.
The experimental design was as follows:
the test pear varieties: dangshan crisp pear
Test site: dangshan county of Anhui
Test time: 1/10/31/2019
Fertilizer to be tested: the synergistic potassium fertilizers of examples 1-5, the synergistic potassium fertilizers of comparative examples 1-4 and the ordinary potassium fertilizer of comparative example 5.
And (3) experimental design: the fertilizer efficiency verification of the synergistic potassium fertilizer is carried out by adopting a pear field test, the test comprises 10 treatments, namely, the treatment 1 is to apply the synergistic potassium fertilizer obtained in the example 1, the treatment 2 is to apply the synergistic potassium fertilizer obtained in the example 2, the treatment 3 is to apply the synergistic potassium fertilizer obtained in the example 3, the treatment 4 is to apply the synergistic potassium fertilizer obtained in the example 4, the treatment 5 is to apply the synergistic potassium fertilizer obtained in the example 5, the treatment 6 is to apply the synergistic potassium fertilizer obtained in the comparative example 1, the treatment 7 is to apply the synergistic potassium fertilizer obtained in the comparative example 2, the treatment 8 is to apply the synergistic potassium fertilizer obtained in the comparative example 3, the treatment 9 is to apply the synergistic potassium fertilizer obtained in the comparative example 4, and the treatment 10 is to apply the synergistic potassium fertilizer obtained inApplying the ordinary potash fertilizer of comparative example 5, 0.5 mu per treated area, and applying the potash fertilizer (K)2O) is 20 kg/mu, wherein the pear tree management is carried out according to the local conventional cultivation technology, and the yield and the quality of each treatment are measured after the pear tree is harvested.
The analysis of the test results is shown in table 1:
TABLE 1 influence of synergistic Potassium fertilizer on Dangshan pear yield and quality
As can be seen from Table 1, after the synergistic potassium fertilizers of examples 1-5 and comparative examples 1-4 are applied, the yield of pear trees can be increased, and the quality of crisp pears can be effectively improved, wherein compared with the common potassium fertilizer of comparative example 5, the average single fruit weight of the crisp pears is increased by 1.82-9.45%, the yield is increased by 7.50-19.21%, the sugar content is increased by 0.50-2.50%, and the fruit yield is increased by 2.80-10.10%. After the synergistic potash fertilizer is applied, the vegetative growth of pear trees can be effectively promoted, and the internal and external quality and commodity of fruits are obviously improved; meanwhile, as can be seen from the treatments 1, 6 and 7 or the treatments 2, 8 and 9, the potassium fertilizer synergist is added with the potassium alginate and the carboxymethyl chitosan simultaneously to achieve a synergistic effect on the potassium fertilizer, the effect is better than that of the potassium alginate or the carboxymethyl chitosan, compared with the treatment 1, the yields of the pears 6 and 7 are reduced by 8.21 percent and 9.58 percent, and compared with the treatment 2, the yields of the pears 8 and 9 are reduced by 5.02 percent and 6.19 percent.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A potentiator, comprising: alginate, carboxymethyl chitosan and medium trace elements.
2. The synergist according to claim 1, wherein the mass ratio of the alginate to the carboxymethyl chitosan to the medium trace element is (20-65): (5-17): (7-20), preferably (30-55): (8-13): (10.5-15).
3. The enhancer as claimed in claim 1 or 2, wherein the medium trace element includes at least one of magnesium element, zinc element, iron element and boron element.
4. The synergist according to claim 3, wherein the medium trace elements comprise magnesium, zinc, iron and boron, and the mass ratio of the magnesium, the zinc, the iron and the boron is (3-8): (2-5): (1-4): (1-3), preferably (4-6): (3-4): (2-3): (1.5-2).
5. The enhancer as claimed in claim 3, wherein said alginate comprises at least one of alginic acid, sodium alginate and potassium alginate, preferably potassium alginate;
optionally, the magnesium element is derived from at least one of magnesium sulfate monohydrate, magnesium sulfate heptahydrate and magnesium oxide, preferably magnesium sulfate monohydrate;
optionally, the zinc element is derived from at least one of zinc sulfate monohydrate, zinc sulfate heptahydrate, and EDTA-Zn, preferably zinc sulfate monohydrate and EDTA-Zn;
optionally, the iron element is derived from at least one of ferrous sulfate heptahydrate, EDTA-Fe and EDDHA-Fe, preferably ferrous sulfate heptahydrate and EDTA-Fe;
optionally, the boron element is derived from at least one of sodium tetraborate decahydrate, sodium octaborate tetrahydrate and boric acid, preferably sodium tetraborate decahydrate.
6. A synergistic potash fertilizer, comprising: potash fertilizer, bentonite, synergist and organic high molecular polymer, wherein, the synergist is the synergist of any one of claims 1-5.
7. The synergistic potassium fertilizer as claimed in claim 6, wherein the potassium fertilizer is contained in an amount of 82 to 95 parts by mass, the bentonite is contained in an amount of 2 to 8 parts by mass, the synergist is contained in an amount of 2 to 6 parts by mass, and the organic high molecular polymer is contained in an amount of 1 to 4 parts by mass, based on 100 parts by mass of the synergistic potassium fertilizer.
8. The synergistic potassic fertilizer as claimed in claim 6 or 7, wherein the potassic fertilizer is derived from at least one of potassium sulfate, potassium chloride, potassium nitrate and potassium dihydrogen phosphate, preferably potassium chloride and potassium sulfate;
optionally, the bentonite is selected from at least one of sodium bentonite, calcium bentonite and hydrogen bentonite, preferably sodium bentonite.
9. The synergistic potash fertilizer according to claim 8, wherein the organic high molecular polymer is selected from at least one of sodium carboxymethyl cellulose, sodium carboxymethyl starch and polyacrylamide, preferably sodium carboxymethyl cellulose.
10. A method of preparing the enhanced potash fertilizer of any one of claims 6-9, comprising: mixing a synergist, a potash fertilizer, bentonite and an organic high molecular polymer, then carrying out extrusion granulation, and then crushing, granulating and screening to obtain the synergistic potash fertilizer, wherein the synergist is the synergist in any one of claims 1 to 5.
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