CN117776808A - Water and fertilizer integrated fertilizer for shallow-buried drip irrigation of corn and preparation method and application thereof - Google Patents
Water and fertilizer integrated fertilizer for shallow-buried drip irrigation of corn and preparation method and application thereof Download PDFInfo
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- CN117776808A CN117776808A CN202410211584.0A CN202410211584A CN117776808A CN 117776808 A CN117776808 A CN 117776808A CN 202410211584 A CN202410211584 A CN 202410211584A CN 117776808 A CN117776808 A CN 117776808A
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 113
- 240000008042 Zea mays Species 0.000 title claims abstract description 39
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 title claims abstract description 39
- 235000002017 Zea mays subsp mays Nutrition 0.000 title claims abstract description 39
- 235000005822 corn Nutrition 0.000 title claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 238000003973 irrigation Methods 0.000 title claims abstract description 27
- 230000002262 irrigation Effects 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 241001474374 Blennius Species 0.000 claims abstract description 27
- 239000000284 extract Substances 0.000 claims abstract description 26
- 238000000855 fermentation Methods 0.000 claims abstract description 25
- 230000004151 fermentation Effects 0.000 claims abstract description 25
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 18
- 239000003621 irrigation water Substances 0.000 claims abstract description 18
- 230000000813 microbial effect Effects 0.000 claims abstract description 14
- 108010020346 Polyglutamic Acid Proteins 0.000 claims abstract description 12
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000004202 carbamide Substances 0.000 claims abstract description 12
- 229910000402 monopotassium phosphate Inorganic materials 0.000 claims abstract description 12
- 235000019796 monopotassium phosphate Nutrition 0.000 claims abstract description 12
- 229920002643 polyglutamic acid Polymers 0.000 claims abstract description 12
- GNSKLFRGEWLPPA-UHFFFAOYSA-M potassium dihydrogen phosphate Chemical compound [K+].OP(O)([O-])=O GNSKLFRGEWLPPA-UHFFFAOYSA-M 0.000 claims abstract description 12
- LWIHDJKSTIGBAC-UHFFFAOYSA-K potassium phosphate Substances [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 239000002131 composite material Substances 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 10
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 6
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims abstract description 6
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims abstract description 6
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims abstract description 6
- 229910021485 fumed silica Inorganic materials 0.000 claims abstract description 6
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims abstract description 6
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 6
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims abstract description 6
- 229910052938 sodium sulfate Inorganic materials 0.000 claims abstract description 6
- 235000011152 sodium sulphate Nutrition 0.000 claims abstract description 6
- 235000016709 nutrition Nutrition 0.000 claims abstract description 5
- 230000035764 nutrition Effects 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims description 15
- 150000001875 compounds Chemical class 0.000 claims description 13
- 241000195474 Sargassum Species 0.000 claims description 8
- 239000002002 slurry Substances 0.000 claims description 8
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims description 6
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 235000019837 monoammonium phosphate Nutrition 0.000 claims description 6
- 239000006012 monoammonium phosphate Substances 0.000 claims description 6
- 108090000790 Enzymes Proteins 0.000 claims description 5
- 102000004190 Enzymes Human genes 0.000 claims description 5
- 239000000654 additive Substances 0.000 claims description 5
- 230000000996 additive effect Effects 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 244000063299 Bacillus subtilis Species 0.000 claims description 4
- 235000014469 Bacillus subtilis Nutrition 0.000 claims description 4
- 241000235342 Saccharomycetes Species 0.000 claims description 4
- 230000004720 fertilization Effects 0.000 claims description 4
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims description 3
- 244000068988 Glycine max Species 0.000 claims description 3
- 235000010469 Glycine max Nutrition 0.000 claims description 3
- 239000001888 Peptone Substances 0.000 claims description 3
- 108010080698 Peptones Proteins 0.000 claims description 3
- 229940041514 candida albicans extract Drugs 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 239000008103 glucose Substances 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 235000019319 peptone Nutrition 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 239000012138 yeast extract Substances 0.000 claims description 3
- 238000011049 filling Methods 0.000 claims description 2
- 238000005189 flocculation Methods 0.000 abstract description 17
- 230000016615 flocculation Effects 0.000 abstract description 16
- 238000002425 crystallisation Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 230000008025 crystallization Effects 0.000 abstract description 5
- 208000035240 Disease Resistance Diseases 0.000 abstract description 3
- 238000005187 foaming Methods 0.000 abstract description 3
- 238000003860 storage Methods 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 235000015097 nutrients Nutrition 0.000 abstract description 2
- 230000003647 oxidation Effects 0.000 abstract description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 11
- 238000004062 sedimentation Methods 0.000 description 8
- 201000010099 disease Diseases 0.000 description 5
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 5
- 244000005700 microbiome Species 0.000 description 5
- 229940088598 enzyme Drugs 0.000 description 4
- 238000012360 testing method Methods 0.000 description 3
- 108010059892 Cellulase Proteins 0.000 description 2
- 108091005804 Peptidases Proteins 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- 239000004365 Protease Substances 0.000 description 2
- 102100037486 Reverse transcriptase/ribonuclease H Human genes 0.000 description 2
- 229940106157 cellulase Drugs 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000001694 spray drying Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 1
- 208000012886 Vertigo Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004108 freeze drying Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
Classifications
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
Landscapes
- Fertilizers (AREA)
Abstract
The invention provides a water and fertilizer integrated fertilizer for shallow-buried drip irrigation of corn and a preparation method and application thereof, and relates to the technical field of fertilizers. The corn shallow-buried drip irrigation water and fertilizer integrated fertilizer comprises raw materials such as urea, monopotassium phosphate, microbial fermentation culture solution, polyglutamic acid, seaweed extract, a composite auxiliary agent, water and the like, wherein the composite auxiliary agent comprises raw materials such as sodium polyacrylate, fumed silica, propylene glycol, dodecyl polyethylene glycol ether sodium sulfate and the like. The invention improves the crystallization resistance, flocculation resistance and foaming resistance of the liquid fertilizer through the composite auxiliary agent so as to prevent the blockage of the drip irrigation head, so that the fertilizer has no crystallization and flocculation phenomenon when being stored for a long time at the temperature of minus 10 ℃, and is convenient for use, transportation and storage at low temperature. The seaweed extract disclosed by the invention can promote the absorption of corn nutrients, improve the nutrition utilization efficiency, improve the disease resistance of corn, relieve the oxidation effect and improve the corn yield.
Description
Technical Field
The invention relates to the technical field of fertilizers, in particular to a water and fertilizer integrated fertilizer for shallow-buried drip irrigation of corn and a preparation method and application thereof.
Background
The integrated shallow drip irrigation and water and fertilizer technology is one irrigation and fertilizer application mode with small water and fertilizer flow rate to the root of crop and capable of saving water and fertilizer and raising crop yield and quality.
Although the shallow-buried drip irrigation water and fertilizer integrated technology can save water and fertilizer and improve the yield and quality of crops, different crops need to be irrigated by adopting different fertilizers, so that the problem of equipment blockage is easy to occur. Common causes of blockage include physical blockage, chemical blockage, biological blockage. The physical blockage is caused by small flow passage section of the dripper, small water outlet hole and easy blockage by organic and inorganic impurities in water. The chemical blockage is that liquid fertilizer flocculates and crystallizes in the flow channel, and the dripper is blocked, especially when the fertilizers such as ammonium sulfate, potassium chloride and the like are used. The biological blockage is caused by the fact that the biological content of microorganisms, algae and the like in water is rich, the drip irrigation system is often combined with fertilization and irrigation, and light-shading facilities such as a fertilizer pool and the like are not in place, so that a large amount of microorganisms are easily propagated, and the drip irrigation inner wall is covered and blocked.
Therefore, how to improve the fertilizer utilization rate, the fertigation effect, reduce the operation cost and prolong the service life of equipment by reducing the equipment blockage has important influence on the development of the shallow drip irrigation water and fertilizer integrated technology.
Disclosure of Invention
In order to solve the problems, the invention provides the corn shallow-buried drip irrigation water and fertilizer integrated fertilizer, and the seaweed extract and the composite auxiliary agent are used, so that the fertilizer utilization rate is improved, and the frost resistance and flocculation resistance of the fertilizer are improved.
The invention relates to a corn shallow-buried drip irrigation water and fertilizer integrated fertilizer which comprises the following raw materials in parts by weight:
50-55 parts of urea, 20-25 parts of monopotassium phosphate, 15-20 parts of monoammonium phosphate, 20-25 parts of microbial fermentation culture solution, 15-20 parts of polyglutamic acid, 15-20 parts of seaweed extract, 2-5 parts of compound auxiliary agent and 80-100 parts of water.
Further, the corn shallow-buried drip irrigation water and fertilizer integrated fertilizer comprises the following raw materials in parts by weight:
55 parts of urea, 25 parts of monopotassium phosphate, 15 parts of monoammonium phosphate, 25 parts of microorganism fermentation culture solution, 15 parts of polyglutamic acid, 15 parts of seaweed extract, 3 parts of compound auxiliary agent and 85 parts of water.
Further, the preparation method of the microbial fermentation culture solution comprises the following steps:
glucose, soybean peptone and yeast extract are used as main nutrition sources of bacillus subtilis and saccharomycetes strains for fermentation culture, and fermentation culture solution is obtained after the culture is completed.
Further, the fermentation culture temperature is 25-32 ℃, the rotating speed is 180-220 rpm, the pH is 6.0-7.0, and the fermentation culture time is 36-48 h.
Further, the seaweed extract is prepared by the following steps:
washing fresh or dried Sargassum, cutting, grinding to obtain Sargassum slurry, adding complex enzyme into Sargassum slurry at a certain ratio for enzymolysis, filtering the enzymolysis solution, removing residues, concentrating, and drying to obtain Sargassum extract.
Further, the solid content of the seaweed slurry is 10% -30%.
Further, the compound enzyme is prepared by mixing cellulase, pectase and protease according to the mass ratio of 2:2:1.
Further, the addition amount of the complex enzyme is 0.15-0.3 wt% of the seaweed slurry.
Further, the enzymolysis temperature is 40-60 ℃, the enzymolysis pH is 4.0-6.0, and the enzymolysis time is 2-4 h.
Further, the drying method is one or more of spray drying, freeze drying or vacuum drying.
Further, the composite auxiliary agent comprises the following raw materials in parts by weight:
3 parts of sodium polyacrylate, 1 part of fumed silica, 5 parts of propylene glycol and 1 part of dodecyl polyethylene glycol ether sodium sulfate.
The preparation method of the corn shallow-buried drip irrigation water and fertilizer integrated fertilizer comprises the following steps:
s1, mixing urea, monopotassium phosphate, polyglutamic acid, seaweed extract and a compound auxiliary agent in proportion to obtain a fertilizer mixture;
s2, adding water into the fertilizer mixture to dissolve the fertilizer mixture;
and S3, adding the microbial fermentation culture solution into the liquid fertilizer, and fully and uniformly stirring to obtain the corn shallow-buried drip irrigation water and fertilizer integrated fertilizer.
The invention further aims to provide an application of the corn shallow-buried drip irrigation water and fertilizer integrated fertilizer, which specifically comprises the following steps:
and (3) filling the water and fertilizer integrated fertilizer into a container, storing or transporting the water and fertilizer integrated fertilizer into a corn field, transporting the water and fertilizer integrated fertilizer into a corn root system through a drip irrigation system, and carrying out irrigation and fertilization according to the needs.
Further, the fertilizing amount is 20-35L/mu.
Compared with the prior art, the invention has the beneficial technical effects that:
the fertilizer disclosed by the invention contains a microbial fermentation culture solution and seaweed extract, so that the problems of flocculation, crystallization and the like of the liquid fertilizer disclosed by the invention are easy to occur, and particularly, the phenomenon is more obvious under the low-temperature condition. At the same time, foaming is easy to occur during drip irrigation. The drip irrigation equipment is blocked by the drip irrigation equipment due to different degrees of the problems, so that not only are the irrigation and fertilization effects affected, but also the equipment is adversely affected. Therefore, the invention designs a special compound auxiliary agent aiming at the characteristics of the liquid fertilizer to improve the crystallization resistance, flocculation resistance and foaming resistance of the liquid fertilizer so as to prevent the blockage of the drip irrigation head.
The fertilizer has good low temperature resistance, has no crystallization or flocculation phenomenon after long-term storage at-10 ℃, and is convenient for use, transportation and storage at low temperature.
The seaweed extract disclosed by the invention can promote the absorption of corn nutrients, improve the nutrition utilization efficiency, improve the disease resistance of corn, relieve the oxidation effect and improve the corn yield.
Detailed Description
The technical scheme provided by the invention is further described below by combining with the embodiment.
The preparation method of the microbial fermentation culture solution adopted in the specific embodiment of the invention comprises the following steps: glucose, soybean peptone and yeast extract are used as main nutrition sources of bacillus subtilis and saccharomycetes strains, and fermentation culture time is 36 and h under the conditions of 32 ℃, 200 rpm of rotating speed and 7.0 of pH value, so as to obtain the microbial fermentation culture solution.
The total viable count of bacillus subtilis and saccharomycetes in the fermentation culture solution extract is 2 multiplied by 10 9 cfu/g。
The preparation method of the seaweed extract adopted in the specific embodiment of the invention comprises the following steps:
washing fresh or dried gulfweed, cutting, grinding to obtain seaweed slurry with a solid content of 30%, adding 0.2wt% of complex enzyme (cellulase, pectase and protease in a mass ratio of 2:2:1) into the seaweed slurry, performing enzymolysis at 40 ℃ and pH of 6.0 for 2 h, filtering the enzymolysis solution, removing residues, concentrating, and spray drying to obtain seaweed extract.
Example 1
The water and fertilizer integrated fertilizer for shallow-buried drip irrigation of corn is prepared from the following raw materials in parts by weight:
55 parts of urea, 25 parts of monopotassium phosphate, 15 parts of monoammonium phosphate, 25 parts of microorganism fermentation culture solution, 15 parts of polyglutamic acid, 15 parts of seaweed extract, 3 parts of compound auxiliary agent and 85 parts of water.
The composite additive comprises the following raw materials in parts by weight:
3 parts of sodium polyacrylate, 1 part of fumed silica, 5 parts of propylene glycol and 1 part of dodecyl polyethylene glycol ether sodium sulfate.
The preparation method of the corn shallow-buried drip irrigation water and fertilizer integrated fertilizer comprises the following steps:
s1, mixing urea, monopotassium phosphate, polyglutamic acid, seaweed extract and a compound auxiliary agent in proportion to obtain a fertilizer mixture;
s2, adding water into the fertilizer mixture to dissolve the fertilizer mixture;
and S3, adding the microbial fermentation culture solution into the liquid fertilizer, and fully and uniformly stirring to obtain the corn shallow-buried drip irrigation water and fertilizer integrated fertilizer.
Example 2
50 parts of urea, 20 parts of monopotassium phosphate, 15 parts of monoammonium phosphate, 20 parts of microbial fermentation culture solution, 15 parts of polyglutamic acid, 15 parts of seaweed extract, 2 parts of compound auxiliary agent and 80 parts of water.
The composite additive comprises the following raw materials in parts by weight:
3 parts of sodium polyacrylate, 1 part of fumed silica, 5 parts of propylene glycol and 1 part of dodecyl polyethylene glycol ether sodium sulfate.
The preparation method of the corn shallow-buried drip irrigation water and fertilizer integrated fertilizer comprises the following steps:
s1, mixing urea, monopotassium phosphate, polyglutamic acid, seaweed extract and a compound auxiliary agent in proportion to obtain a fertilizer mixture;
s2, adding water into the fertilizer mixture to dissolve the fertilizer mixture;
and S3, adding the microbial fermentation culture solution into the liquid fertilizer, and fully and uniformly stirring to obtain the corn shallow-buried drip irrigation water and fertilizer integrated fertilizer.
Example 3
55 parts of urea, 25 parts of monopotassium phosphate, 20 parts of monoammonium phosphate, 25 parts of microorganism fermentation culture solution, 20 parts of polyglutamic acid, 20 parts of seaweed extract, 5 parts of compound auxiliary agent and 100 parts of water.
The composite additive comprises the following raw materials in parts by weight:
3 parts of sodium polyacrylate, 1 part of fumed silica, 5 parts of propylene glycol and 1 part of dodecyl polyethylene glycol ether sodium sulfate.
The preparation method of the corn shallow-buried drip irrigation water and fertilizer integrated fertilizer comprises the following steps:
s1, mixing urea, monopotassium phosphate, polyglutamic acid, seaweed extract and a compound auxiliary agent in proportion to obtain a fertilizer mixture;
s2, adding water into the fertilizer mixture to dissolve the fertilizer mixture;
and S3, adding the microbial fermentation culture solution into the liquid fertilizer, and fully and uniformly stirring to obtain the corn shallow-buried drip irrigation water and fertilizer integrated fertilizer.
Comparative example 1
The difference from example 1 is that: seaweed extract was not added.
Comparative example 2
The difference from example 1 is that: no compounding assistant is added.
Comparative example 3
The difference from example 1 is that: seaweed extract and compounding auxiliary agent are not added.
Test example 1
The samples of examples 1 to 3 and comparative examples 1 to 3 were stored in a sealed manner at-10℃under light-shielding conditions, and the conditions of the samples were observed as follows:
| for 3 months | 6 months of | For 9 months | For 12 months | |
| Example 1 | Clear, flocculation-free and sedimentation-free | Clear, flocculation-free and sedimentation-free | Clear, flocculation-free and sedimentation-free | Clear, flocculation-free and sedimentation-free |
| Example 2 | Clear, flocculation-free and sedimentation-free | Clear, flocculation-free and sedimentation-free | Clear, flocculation-free and sedimentation-free | Clear, flocculation-free and sedimentation-free |
| Example 3 | Clear, flocculation-free and sedimentation-free | Clear, flocculation-free and sedimentation-free | Clear, flocculation-free and sedimentation-free | Clear, flocculation-free and sedimentation-free |
| Comparative example 1 | Clear, flocculation-free and sedimentation-free | Clear, flocculation-free and sedimentation-free | Less flocculation and no sedimentation with reduced clarity | Less flocculation and less sedimentation with reduced clarity |
| Comparative example 2 | Reduced clarity, no flocculation and no sedimentation | Less flocculation and less sedimentation with reduced clarity | Less flocculation and less sedimentation with reduced clarity | Less clarity reduction, more flocculation and less sedimentation |
| Comparative example 3 | Less flocculation and no sedimentation with reduced clarity | Less clarity reduction, more flocculation and less sedimentation | Reduced clarity, high flocculation and high precipitation | Reduced clarity mass flocculation mass precipitation |
Therefore, the application of the seaweed extract and the composite additive in the invention plays an important role in improving the anti-flocculation, anti-crystallization and anti-low temperature performances of the fertilizer. Furthermore, the pipeline and the drip irrigation head can be prevented from being blocked in the using process, the blocking is prevented, the action effect of the fertilizer is improved, the utilization rate of the fertilizer is improved, and the maintenance cost of equipment is reduced.
Test example 2
The test field is equally divided into four cells, corn of the same variety (Zhengdan 958) is planted in each cell, the area and the planting density of each cell are the same, the fertilizer of the example 1 and the fertilizers of the comparative examples 1-3 are adopted for drip irrigation (drip irrigation twice in total), the dosage is 30L/mu, and other management measures are kept consistent.
In different growth stages of seedling stage, jointing stage, spinning stage, grouting stage, etc. of corn, the corn in each district is investigated, the incidence and disease degree of each disease are recorded, disease resistance is evaluated, and the comprehensive disease index of each district is calculated. During the maturity stage of corn, corn from each cell was harvested and the yield increase for each cell was calculated as follows:
| treatment of | Incidence of large spot disease (%) | Incidence of stem rot（%） | Incidence of ear rot (%) | Incidence of head smut (%) | Incidence of gray spot (%) | Disease complex index | Yield increase (%) |
| Example 1 | 3.2 | 1.5 | 2.8 | 7.7 | 4.1 | 0.2 | 22.1 |
| Comparative example 1 | 5.2 | 2.7 | 4.2 | 11.3 | 6.2 | 0.3 | 15.9 |
| Comparative example 2 | 4.7 | 2.1 | 3.6 | 9.9 | 5.7 | 0.3 | 12.8 |
| Comparative example 3 | 6.4 | 3.2 | 5.1 | 13.4 | 7.4 | 0.4 | 7.4 |
Therefore, the drip irrigation efficiency of the fertilizer can be obviously improved by improving the performance of the fertilizer, and the accuracy and uniformity of the fertilizer can be ensured so as to improve the fertilizer efficiency and the fertilizer utilization rate.
The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to assist in understanding the methods of the present invention and the core ideas thereof; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (6)
1. The water and fertilizer integrated fertilizer for shallow-buried drip irrigation of corn is characterized by comprising the following raw materials in parts by weight:
50-55 parts of urea, 20-25 parts of monopotassium phosphate, 15-20 parts of monoammonium phosphate, 20-25 parts of microbial fermentation culture solution, 15-20 parts of polyglutamic acid, 15-20 parts of seaweed extract, 2-5 parts of compound auxiliary agent and 80-100 parts of water;
the composite additive comprises the following raw materials in parts by weight:
3 parts of sodium polyacrylate, 1 part of fumed silica, 5 parts of propylene glycol and 1 part of dodecyl polyethylene glycol ether sodium sulfate.
2. The integrated fertilizer for shallow-buried drip irrigation and water and fertilizer for corn according to claim 1, wherein the preparation method of the microbial fermentation culture solution is as follows:
glucose, soybean peptone and yeast extract are used as main nutrition sources of bacillus subtilis and saccharomycetes strains for fermentation culture, and fermentation culture solution is obtained after the culture is completed.
3. The integrated fertilizer for shallow-buried drip irrigation and water and fertilizer for corn according to claim 1, wherein the preparation method of the seaweed extract is as follows:
washing fresh or dried Sargassum, cutting, grinding to obtain Sargassum slurry, adding complex enzyme into Sargassum slurry at a certain ratio for enzymolysis, filtering the enzymolysis solution, removing residues, concentrating, and drying to obtain Sargassum extract.
4. The preparation method of the corn shallow-buried drip irrigation water and fertilizer integrated fertilizer according to any one of claims 1-3, which is characterized by comprising the following steps:
s1, mixing urea, monopotassium phosphate, polyglutamic acid, seaweed extract and a compound auxiliary agent in proportion to obtain a fertilizer mixture;
s2, adding water into the fertilizer mixture to dissolve the fertilizer mixture;
and S3, adding the microbial fermentation culture solution into the liquid fertilizer, and fully and uniformly stirring to obtain the corn shallow-buried drip irrigation water and fertilizer integrated fertilizer.
5. The application of the corn shallow-buried drip irrigation water and fertilizer integrated fertilizer according to any one of claims 1-3, which is characterized by comprising the following steps:
and (3) filling the water and fertilizer integrated fertilizer into a container, storing or transporting the water and fertilizer integrated fertilizer into a corn field, transporting the water and fertilizer integrated fertilizer into a corn root system through a drip irrigation system, and carrying out irrigation and fertilization according to the needs.
6. The application of claim 5, wherein the fertilizing amount is 20-35L/mu.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410211584.0A CN117776808B (en) | 2024-02-27 | 2024-02-27 | Water and fertilizer integrated fertilizer for shallow-buried drip irrigation of corn and preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410211584.0A CN117776808B (en) | 2024-02-27 | 2024-02-27 | Water and fertilizer integrated fertilizer for shallow-buried drip irrigation of corn and preparation method and application thereof |
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| CN117776808A true CN117776808A (en) | 2024-03-29 |
| CN117776808B CN117776808B (en) | 2024-05-24 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104151083A (en) * | 2014-08-27 | 2014-11-19 | 史丹利化肥股份有限公司 | Liquid sprinkler irrigation and dripping irrigation fertilizer specially used for cotton and production method thereof |
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| US20220322620A1 (en) * | 2019-03-29 | 2022-10-13 | China Agriculture University | Method for inhibiting microbial clogging in drip irrigators |
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