CN117778027B - Vegetation concrete ecological modifier based on organic phosphonic acid and sulfur powder composite alkali reduction, and preparation method and application thereof - Google Patents
Vegetation concrete ecological modifier based on organic phosphonic acid and sulfur powder composite alkali reduction, and preparation method and application thereof Download PDFInfo
- Publication number
- CN117778027B CN117778027B CN202410205844.3A CN202410205844A CN117778027B CN 117778027 B CN117778027 B CN 117778027B CN 202410205844 A CN202410205844 A CN 202410205844A CN 117778027 B CN117778027 B CN 117778027B
- Authority
- CN
- China
- Prior art keywords
- vegetation concrete
- parts
- phosphonic acid
- organic
- sulfur powder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000004567 concrete Substances 0.000 title claims abstract description 54
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical compound OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 title claims abstract description 47
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 239000003607 modifier Substances 0.000 title claims abstract description 35
- 239000003513 alkali Substances 0.000 title claims abstract description 22
- 230000009467 reduction Effects 0.000 title claims abstract description 19
- 239000002131 composite material Substances 0.000 title claims abstract description 16
- 238000002360 preparation method Methods 0.000 title abstract description 11
- 239000004568 cement Substances 0.000 claims abstract description 37
- 239000003337 fertilizer Substances 0.000 claims abstract description 37
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 30
- 150000001875 compounds Chemical class 0.000 claims abstract description 21
- 238000002156 mixing Methods 0.000 claims abstract description 20
- 230000001580 bacterial effect Effects 0.000 claims abstract description 17
- 239000002344 surface layer Substances 0.000 claims abstract description 15
- 239000003895 organic fertilizer Substances 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims abstract description 5
- 239000002689 soil Substances 0.000 claims description 26
- 239000002585 base Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 13
- 241000605272 Acidithiobacillus thiooxidans Species 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 11
- 241000196324 Embryophyta Species 0.000 claims description 10
- 210000003608 fece Anatomy 0.000 claims description 10
- 239000010410 layer Substances 0.000 claims description 10
- 239000010871 livestock manure Substances 0.000 claims description 10
- DBVJJBKOTRCVKF-UHFFFAOYSA-N Etidronic acid Chemical compound OP(=O)(O)C(O)(C)P(O)(O)=O DBVJJBKOTRCVKF-UHFFFAOYSA-N 0.000 claims description 9
- 235000007164 Oryza sativa Nutrition 0.000 claims description 8
- 239000004745 nonwoven fabric Substances 0.000 claims description 8
- 239000005416 organic matter Substances 0.000 claims description 8
- 235000009566 rice Nutrition 0.000 claims description 8
- 235000017060 Arachis glabrata Nutrition 0.000 claims description 7
- 244000105624 Arachis hypogaea Species 0.000 claims description 7
- 235000010777 Arachis hypogaea Nutrition 0.000 claims description 7
- 235000018262 Arachis monticola Nutrition 0.000 claims description 7
- 235000020232 peanut Nutrition 0.000 claims description 7
- -1 2-phosphonobutane-1, 2, 4-tricarboxylic acid (phosphonobutane tricarboxylic acid) Chemical compound 0.000 claims description 6
- 235000015097 nutrients Nutrition 0.000 claims description 6
- 239000010902 straw Substances 0.000 claims description 6
- 241001509286 Thiobacillus denitrificans Species 0.000 claims description 5
- DUYCTCQXNHFCSJ-UHFFFAOYSA-N dtpmp Chemical compound OP(=O)(O)CN(CP(O)(O)=O)CCN(CP(O)(=O)O)CCN(CP(O)(O)=O)CP(O)(O)=O DUYCTCQXNHFCSJ-UHFFFAOYSA-N 0.000 claims description 5
- NFDRPXJGHKJRLJ-UHFFFAOYSA-N edtmp Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CCN(CP(O)(O)=O)CP(O)(O)=O NFDRPXJGHKJRLJ-UHFFFAOYSA-N 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 5
- BAERPNBPLZWCES-UHFFFAOYSA-N (2-hydroxy-1-phosphonoethyl)phosphonic acid Chemical compound OCC(P(O)(O)=O)P(O)(O)=O BAERPNBPLZWCES-UHFFFAOYSA-N 0.000 claims description 4
- 241001494479 Pecora Species 0.000 claims description 4
- 240000008042 Zea mays Species 0.000 claims description 4
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 4
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 4
- WZLMXYBCAZZIRQ-UHFFFAOYSA-N [N].[P].[K] Chemical group [N].[P].[K] WZLMXYBCAZZIRQ-UHFFFAOYSA-N 0.000 claims description 4
- 239000002250 absorbent Substances 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 4
- 235000005822 corn Nutrition 0.000 claims description 4
- 229920002401 polyacrylamide Polymers 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 235000021419 vinegar Nutrition 0.000 claims description 4
- 239000000052 vinegar Substances 0.000 claims description 4
- 241000287828 Gallus gallus Species 0.000 claims description 3
- 241000209140 Triticum Species 0.000 claims description 3
- 235000021307 Triticum Nutrition 0.000 claims description 3
- 240000007594 Oryza sativa Species 0.000 claims 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims 1
- 238000012423 maintenance Methods 0.000 claims 1
- 239000003469 silicate cement Substances 0.000 claims 1
- 230000035558 fertility Effects 0.000 abstract description 4
- 230000007774 longterm Effects 0.000 abstract description 4
- 230000008635 plant growth Effects 0.000 abstract description 4
- 238000009991 scouring Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 14
- 230000000694 effects Effects 0.000 description 8
- 239000002994 raw material Substances 0.000 description 8
- 238000005507 spraying Methods 0.000 description 8
- 241000209094 Oryza Species 0.000 description 6
- 239000011575 calcium Substances 0.000 description 6
- 238000006703 hydration reaction Methods 0.000 description 6
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 5
- 241000605222 Acidithiobacillus ferrooxidans Species 0.000 description 4
- 241000234643 Festuca arundinacea Species 0.000 description 4
- 229910052791 calcium Inorganic materials 0.000 description 4
- 239000010903 husk Substances 0.000 description 4
- 230000036571 hydration Effects 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 239000011398 Portland cement Substances 0.000 description 3
- 241000605268 Thiobacillus thioparus Species 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 239000004927 clay Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000001934 delay Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 230000012010 growth Effects 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 239000002688 soil aggregate Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- SZHQPBJEOCHCKM-UHFFFAOYSA-N 2-phosphonobutane-1,2,4-tricarboxylic acid Chemical compound OC(=O)CCC(P(O)(O)=O)(C(O)=O)CC(O)=O SZHQPBJEOCHCKM-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 2
- 229940120146 EDTMP Drugs 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- YDONNITUKPKTIG-UHFFFAOYSA-N [Nitrilotris(methylene)]trisphosphonic acid Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CP(O)(O)=O YDONNITUKPKTIG-UHFFFAOYSA-N 0.000 description 2
- 229910001424 calcium ion Inorganic materials 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000010899 nucleation Methods 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000197 pyrolysis Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 description 1
- 239000002028 Biomass Substances 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- YYRMJZQKEFZXMX-UHFFFAOYSA-N calcium;phosphoric acid Chemical compound [Ca+2].OP(O)(O)=O.OP(O)(O)=O YYRMJZQKEFZXMX-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 235000015165 citric acid Nutrition 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 230000035784 germination Effects 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 239000001630 malic acid Substances 0.000 description 1
- 235000011090 malic acid Nutrition 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 150000003009 phosphonic acids Chemical class 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 230000002786 root growth Effects 0.000 description 1
- 230000007226 seed germination Effects 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000009331 sowing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002426 superphosphate Substances 0.000 description 1
- 238000004227 thermal cracking Methods 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Fertilizers (AREA)
Abstract
The invention discloses a vegetation concrete ecological modifier based on organic phosphonic acid and sulfur powder composite alkali reduction, and a preparation method and application thereof, and belongs to the technical field of ecological restoration. The vegetation concrete ecological modifier comprises the following components in parts by mass: 1-8 parts of biochar, 0.5-4.5 parts of organic phosphonic acid, 0.02-0.3 part of sulfur powder, 0.8-1.5 parts of organic fertilizer, 0.02-0.08 part of compound fertilizer, 0.02-0.12 part of slow release fertilizer, 0.01-0.05 part of water-retaining agent and 0.001-0.006 part of vulcanized bacterial agent. Mixing the ecological modifier with cement, organic matters and loam, adding slope protection plant seeds into the surface layer, adding a proper amount of water, and uniformly stirring to obtain vegetation concrete. The vegetation concrete not only has higher early strength and anti-scouring performance, but also can reduce the later alkalinity to about 8.0, and provides long-term fertility for plant growth.
Description
Technical Field
The invention belongs to the technical field of ecological restoration, and particularly relates to a vegetation concrete ecological modifier based on organic phosphonic acid and sulfur powder composite alkali reduction, and a preparation method and application thereof.
Background
In recent years, with the great development of national infrastructure construction, strong interference is caused to an ecological system, vegetation is greatly destroyed, secondary bare land is accompanied, and a series of ecological environment problems such as reduced biodiversity, reduced water conservation capacity, water and soil conservation function loss and the like occur in an engineering disturbance area, so that the environment, landscape and sustainable development of engineering sites and surrounding areas are seriously affected.
The vegetation concrete ecological protection technology is one of the effective means for solving the problems. Cement is used as binder for vegetation concrete spraying to improve the strength and anti-scouring performance of the base material, but the alkalinity of the base body is obviously increased due to cement hydration, the pH value is generally above 11, and the pH environment in which most plants are suitable for growing is 6.5-8.5. In addition, the problems of soil aggregate structure damage, soil hardening and the like can be caused, and the vegetation concrete ecological modifier needs to be added to solve the problems. The ecological modifier has the primary functions of reducing the pH value of the matrix, improving the soil aggregate structure and providing long-term fertility and retaining moisture for plant growth.
In the existing vegetation concrete ecological modifier, common components for reducing the pH of a matrix are gypsum, acid fertilizers (such as ferrous sulfate and superphosphate) and organic acids (such as citric acid, malic acid, oxalic acid and the like). These methods have the following problems: (1) The setting and hardening time of a cement soil system can be delayed, so that the early stage, especially the early 3d stage, has almost no strength and anti-scouring capability; (2) In the long term, the alkali-reducing method can reduce the pH value to below 9.0 in the 14d age, but the pH value of the base material can be increased along with continuous hydration of cement after 28d, and the base material is still in high alkalinity, so that the growth of plants is severely restricted.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a vegetation concrete ecological modifier based on organic phosphonic acid and sulfur powder composite alkali reduction, and a preparation method and application thereof.
In order to achieve the above purpose, the present invention provides the following technical solutions:
A vegetation concrete ecological modifier based on organic phosphonic acid and sulfur powder composite alkali reduction is characterized in that the organic phosphonic acid, the sulfur powder and vulcanized bacterial agent are compounded according to the mass ratio of (0.5-4.5) to (0.02-0.3) to (0.001-0.006) to be used as alkali reduction materials of the vegetation concrete ecological modifier.
Further, the composition comprises the following components in parts by mass: 1-8 parts of biochar, 0.5-4.5 parts of organic phosphonic acid, 0.02-0.3 part of sulfur powder, 0.8-1.5 parts of organic fertilizer, 0.02-0.08 part of compound fertilizer, 0.02-0.12 part of slow release fertilizer, 0.01-0.05 part of water-retaining agent and 0.001-0.006 part of vulcanized bacterial agent.
Further, the biochar is one of wheat straw biochar, corn straw biochar, rice husk biochar and peanut husk biochar;
The organic phosphonic acid is one of 2-phosphonobutane-1, 2, 4-tricarboxylic acid (phosphonobutane tricarboxylic acid) [ PBTC ], ethane-1-hydroxy-1, 1-diphosphonic acid (hydroxyethylidene diphosphonic acid) [ HEDP ], nitro tricarboxylic acid (methylenephosphonic acid) [ NTMP ], ethylenediamine tetra (methylenephosphonic acid) [ EDTMP ] and diethylenetriamine penta (methylenephosphonic acid) [ DTPMP ];
The sulfur powder is elemental sulfur, light yellow solid particles with the preferred particle size of 16-100 meshes;
the organic fertilizer is one of fermented chicken manure, fermented sheep manure and fermented cow manure;
The compound fertilizer is a nitrogen-phosphorus-potassium ternary compound fertilizer, and the total nutrient is 40% -60%;
the slow release fertilizer is MU slow release fertilizer.
The water-retaining agent is formed by mixing SPA water-absorbent resin and polyacrylamide according to the mass ratio of 1:1.5-2;
the effective viable count of the vulcanized bacterial agent is more than or equal to 200 hundred million/g, and the effective viable count is at least one of thiobacillus thiooxidans (Thiobacillusthiooxidans), thiobacillus thiooxidans (Thiobacillusthioparus), thiobacillus ferrooxidans (Thiobacillusferrooxidans) and thiobacillus denitrificans (Thiobacillusdenitrificans).
The invention also provides a preparation method of the vegetation concrete ecological modifier based on the organic phosphonic acid and sulfur powder composite alkali reduction, which comprises the following steps:
(1) Weighing raw materials according to a proportion, and uniformly mixing biochar, organic fertilizer and vulcanized bacterial agent to obtain a mixture;
(2) Mixing organic phosphonic acid, sulfur powder, compound fertilizer and slow release fertilizer, then adding the mixture and water-retaining agent, and fully and uniformly mixing to obtain the vegetation concrete ecological modifier.
The invention also provides vegetation concrete which comprises the following components in parts by mass: 100 parts of loam, 2-10 parts of vegetation concrete ecological modifier, 3-10 parts of organic matters and 2-14 parts of cement.
Further, the loam is field planting soil; the organic matter is one or more of sawdust, rice hulls, peanut shells, vinegar residues and vinasse; the cement is ordinary Portland cement, preferably P.O 42.5.5R cement.
The invention also provides a preparation method of the vegetation concrete, which comprises the following steps: mixing loam, organic matter, cement and the ecological modifier, adding slope protection plant seeds into the surface layer, adding water and stirring uniformly to obtain vegetation concrete.
The invention also provides an application method of the vegetation concrete-based ecological slope protection, which comprises the steps of spraying vegetation concrete on a slope to be repaired (the slope needs to be cleaned and hung with a net to be anchored), spraying a base layer, spraying a surface layer, covering a non-woven fabric on the surface layer, watering and maintaining, and uncovering the non-woven fabric after seeds germinate.
Further, the thickness of the base layer is 60-100mm, and the thickness of the surface layer is 20mm.
Compared with the prior art, the invention has the following advantages and technical effects:
1. The invention adopts organic phosphonic acid as main alkali-reducing material, and simultaneously, sulfur powder is mixed. The organic phosphonic acid is a multi-element organic acid, has strong acidity and low pH value, can quickly reduce the pH value of the base material to about 8.5 in early stage, and can ensure the normal germination of plant seeds. As the hydration of the cement in the matrix continues to proceed, the [ OH ] - is released continuously, H + generated by dissociation of the organic phosphonic acid is gradually consumed, and the pH value of the matrix increases around 14 d. Sulfur is ground and mixed with soil and oxidized into [ SO 4]2-,[SO4]2- and alkaline ions such as calcium and magnesium in the soil to form insoluble compounds such as calcium sulfate and magnesium sulfate by soil microorganisms (sulfureted bacteria). The compounds can play a role in neutralizing alkaline substances in soil, reducing the alkalinity of the soil and reducing the poisoning effect of sodium ions, thereby improving the soil texture of the saline-alkali soil. However, the method is a slow biological process, and usually needs several months to achieve the best effect, and the process can be better promoted by adding sulfureted bacteria into soil, and the alkalinity can be obviously reduced after two weeks of soil addition. The organic phosphonic acid and the sulfur powder cooperate to reduce the long-term pH of vegetation concrete to about 8 so as to be beneficial to normal growth of plants.
2. The organic phosphonic acid hardly delays setting time of cement in the system. The retarding mechanism of the cement is as follows: after the cement adsorbs the phosphonic acid, the surface charge is very low and the potential is insufficient to keep the cement particles away from each other. Phosphonic acids dissociate first in water and exist in various valence anionic forms. These ions are adsorbed onto the surface of the cement particles and combine with Ca 2+ ions in situ to form a phosphate of poorly soluble calcium, and a film is formed to cover the surface of the cement particles to form a coating layer, which delays or even prevents the hydration reaction of the cement particles. Or adsorbed on the crystal nucleus of the hydrated cement, and delays the growth of the crystal nucleus, thereby delaying the initial hydration reaction of the cement. Phosphonic acid has strong adsorption effect on almost all mineral surfaces, and also comprises clay, and in a cement soil body system, the amounts of cement and phosphonic acid are relatively small, and a large amount of clay particles exist around the phosphonic acid, so that the phosphonic acid is adsorbed on the clay particles at a larger probability, and the influence on the setting time of the cement after the phosphonic acid is doped in the system is almost negligible, so that the early strength of the system is ensured to be higher.
3. The organic phosphonic acid itself contains a large amount of phosphorus, and is also an excellent chelating agent, so that stable metal complexes can be formed under wide pH conditions, trace elements and phosphorus contained in the metal complexes are necessary for normal development of plants, and the organic phosphonic acid has positive effects on seed germination, root growth and yield increase of plants.
4. The biochar is a carbon-rich product formed by pyrolysis of biomass such as agricultural and forestry waste under the anoxic condition, has the characteristics of larger specific surface area, microporous structure, stronger adsorptivity, biodegradability resistance and the like, and can repair and improve various barrier soil, in particular saline-alkali soil caused by cement introduction. Because some nutrients are concentrated and enriched in the anaerobic thermal cracking process, ca, mg, P, K and other elements in the biochar are higher than the content of the prepared materials, and the biochar has higher calcium and magnesium content by adding the calcium-containing catalyst in the pyrolysis. The calcium and magnesium ions, especially calcium ions, play an important positive role in preventing soil alkalization, reducing sodium alkali hazard and improving physical and chemical properties of soil. In addition, the biochar also has the functions of improving soil aggregate structure and preserving water and fertilizer.
Detailed Description
Various exemplary embodiments of the invention will now be described in detail, which should not be considered as limiting the invention, but rather as more detailed descriptions of certain aspects, features and embodiments of the invention.
It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In addition, for numerical ranges in this disclosure, it is understood that each intermediate value between the upper and lower limits of the ranges is also specifically disclosed. Every smaller range between any stated value or stated range, and any other stated value or intermediate value within the stated range, is also encompassed within the invention. The upper and lower limits of these smaller ranges may independently be included or excluded in the range.
Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Although only preferred methods and materials are described herein, any methods and materials similar or equivalent to those described herein can be used in the practice or testing of the present invention. All documents mentioned in this specification are incorporated by reference for the purpose of disclosing and describing the methods and/or materials associated with the documents. In case of conflict with any incorporated document, the present specification will control.
It will be apparent to those skilled in the art that various modifications and variations can be made in the specific embodiments of the application described herein without departing from the scope or spirit of the application. Other embodiments will be apparent to those skilled in the art from consideration of the specification of the present application. The specification and examples of the present application are exemplary only.
As used herein, the terms "comprising," "including," "having," "containing," and the like are intended to be inclusive and mean an inclusion, but not limited to.
The invention provides a vegetation concrete ecological modifier based on organic phosphonic acid and sulfur powder composite alkali reduction, which is prepared by compounding the organic phosphonic acid, the sulfur powder and a vulcanized bacterial agent according to the mass ratio of (0.5-4.5) to (0.02-0.3) to (0.001-0.006) as an alkali reduction material of the vegetation concrete ecological modifier, wherein the preferable ratio is (1.5-2.5) to (0.04-0.06) to (0.003-0.005).
The vegetation concrete ecological modifier based on the organic phosphonic acid and sulfur powder composite alkali reduction comprises the following components in parts by mass: 1-8 parts of biochar, 0.5-4.5 parts of organic phosphonic acid, 0.02-0.3 part of sulfur powder, 0.8-1.5 parts of organic fertilizer, 0.02-0.08 part of compound fertilizer, 0.02-0.12 part of slow release fertilizer, 0.01-0.05 part of water-retaining agent and 0.001-0.006 part of vulcanized bacterial agent.
The composition preferably comprises the following components in parts by mass: 2-3 parts of biochar, 1.5-2.5 parts of organic phosphonic acid, 0.04-0.06 part of sulfur powder, 1.2-1.5 parts of organic fertilizer, 0.04-0.06 part of compound fertilizer, 0.06-0.08 part of slow release fertilizer, 0.03-0.04 part of water-retaining agent and 0.03-0.005 part of vulcanized bacterial agent.
In some preferred embodiments of the present invention, the biochar is one of wheat straw biochar, corn straw biochar, rice husk biochar, and peanut husk biochar.
The organic phosphonic acid is one of 2-phosphonobutane-1, 2, 4-tricarboxylic acid (phosphonobutane tricarboxylic acid) [ PBTC ], ethane-1-hydroxy-1, 1-diphosphonic acid (hydroxyethylidene diphosphonic acid) [ HEDP ], nitro tricarboxylic acid (methylenephosphonic acid) [ NTMP ], ethylenediamine tetra (methylenephosphonic acid) [ EDTMP ] and diethylenetriamine penta (methylenephosphonic acid) [ DTPMP ];
The sulfur powder is elemental sulfur, light yellow solid particles with the preferred particle size of 16-100 meshes;
the organic fertilizer is one of fermented chicken manure, fermented sheep manure and fermented cow manure;
the compound fertilizer is a nitrogen-phosphorus-potassium ternary compound fertilizer, and the total nutrient is 40-60%;
the slow release fertilizer is MU slow release fertilizer;
the water-retaining agent is formed by mixing SPA water-absorbent resin and polyacrylamide according to the mass ratio of 1:1.5-2;
the effective viable count of the vulcanized bacterial agent is more than or equal to 200 hundred million/g, and the effective viable count is at least one of thiobacillus thiooxidans (Thiobacillusthiooxidans), thiobacillus thiooxidans (Thiobacillusthioparus), thiobacillus ferrooxidans (Thiobacillusferrooxidans) and thiobacillus denitrificans (Thiobacillusdenitrificans).
The invention also provides a preparation method of the plant material modifier based on the organic phosphonic acid and sulfur powder composite alkali reduction, which comprises the following steps:
(1) Weighing raw materials according to a proportion, and uniformly mixing biochar, organic fertilizer and vulcanized bacterial agent to obtain a mixture;
(2) Mixing organic phosphonic acid, sulfur powder, compound fertilizer and slow release fertilizer, and then adding the mixture and a water-retaining agent to obtain a vegetation concrete ecological modifier;
the invention also provides vegetation concrete which comprises the following components in parts by mass: 100 parts of loam, 2-10 parts of vegetation concrete ecological modifier, 3-10 parts of organic matters and 2-14 parts of cement.
In some preferred embodiments of the invention, the loam is a field planting soil; the organic matter is one or more of sawdust, rice hulls, peanut shells, vinegar residues and vinasse; the cement is ordinary Portland cement, preferably P.O 42.5.5R cement.
The invention also provides a preparation method of the vegetation concrete, which comprises the following steps: mixing loam, organic matter, cement and the vegetation concrete ecological modifier, adding slope protection plant seeds into the surface layer, and adding water and stirring uniformly to obtain vegetation concrete.
In some preferred embodiments of the invention, the loam is a field planting soil whose soil fertility meets planting soil requirements; the organic matter is one or more of sawdust, rice hulls, peanut shells, vinegar residues and vinasse; the cement is ordinary Portland cement, preferably P.O 42.5.5R cement;
The invention also provides an application method of the vegetation concrete ecological slope protection based on the composite alkali reduction of the organic phosphonic acid and the sulfur powder, the prepared vegetation concrete is constructed by adopting spray seeding, the thickness of a base layer is 60-100mm, the vegetation concrete is sprayed twice, and the middle interval is within 4 hours; after the spraying of the base layer is completed, the surface layer is sprayed, and the thickness of the surface layer is generally 20mm. Covering the non-woven fabric, watering and maintaining until the seeds germinate, and removing the non-woven fabric. Adding festuca arundinacea seeds into the surface layer, wherein the adding amount is 20-30g/m 2.
The above-mentioned effects can be achieved by adopting the specific composition components of the raw materials according to the present invention, and in order to further verify the effects through experiments, as an example, the following raw materials are typically selected, but not limited to:
the loam is field planting soil, and the soil fertility meets the planting soil requirement;
The organic matter is formed by mixing sawdust and rice hulls according to the mass ratio of 2:1;
the cement is P.O 42.5.5R cement;
The biochar is corn stalk biochar;
The organic phosphonic acid is ethane-1-hydroxy-1, 1-diphosphonic acid (hydroxyethylidene diphosphonic acid) [ HEDP ];
the sulfur powder is sulfur simple substance, light yellow solid particles with the particle size of 16-100 meshes;
The organic fertilizer is fermented sheep manure;
the compound fertilizer is a nitrogen-phosphorus-potassium ternary compound fertilizer, and the available nutrients are 45 percent (15 percent of each of nitrogen, phosphorus and potassium);
The slow release fertilizer is MU slow release fertilizer;
The water-retaining agent is formed by mixing SPA water-absorbent resin and polyacrylamide according to the mass ratio of 1:2.
The effective viable count of the vulcanized bacterial agent is more than or equal to 200 hundred million/g, and the effective viable count is formed by mixing thiobacillus thiooxidans (Thiobacillusthiooxidans) and thiobacillus thiooxidans (Thiobacillusthioparus) according to a mass ratio of 1:1.
The "parts" in the present invention are all parts by mass unless otherwise specified.
The raw materials used in the following examples of the present invention are all commercially available.
The following examples serve as further illustrations of the technical solutions of the invention.
Examples 1 to 3, comparative examples 1 to 4
Preparation of vegetation concrete ecological modifier based on organic phosphonic acid and sulfur powder composite alkali reduction:
(1) Weighing raw materials according to the raw material dosage ratio in table 1, and uniformly mixing biochar, organic fertilizer and vulcanized bacterial agent to obtain a mixture;
(2) Mixing organic phosphonic acid, sulfur powder, compound fertilizer and slow release fertilizer, and then adding the mixture and water-retaining agent to obtain the vegetation concrete ecological modifier.
TABLE 1
Application examples 1 to 3, comparative application examples 1 to 4
Preparation and application of vegetation concrete:
(1) Weighing the raw materials according to the proportion of the table 2;
(2) When the base layer is prepared, sequentially adding planting loam, organic matters, cement and plant material modifier, and adding a proper amount of water to fully and uniformly stir;
(2) When the surface layer is prepared, the planting loam, the organic matters, the cement and the plant material modifier are sequentially added, the festuca arundinacea seeds are finally added, the adding amount is 25g/m 2, and a proper amount of water is added and fully and uniformly stirred.
(3) The prepared vegetation concrete is subjected to spray seeding construction, the thickness of a base layer is 80mm, the vegetation concrete is sprayed and sowed twice, and the interval is 2h; after the spraying of the base layer is completed, spraying a surface layer, wherein the thickness of the surface layer is 20mm;
(4) Covering the non-woven fabric, watering and maintaining until the grass seeds germinate, and removing the non-woven fabric.
TABLE 2
After the spraying and sowing for 3-7 days, the grass seeds are germinated successively. The key technical indicators are tested, and the results are shown in the following tables 3 and 4.
TABLE 3 pH results of value test
TABLE 4 other index test results
From the table, the organic phosphonic acid, the sulfur powder and the vulcanized bacterial agent compound alkali reduction in each application example does not negatively influence the early strength of the system, has good physical and chemical properties, and has good growth vigor of festuca arundinacea. As can be seen from the comparison of application example 3 with application examples 1 and 2, along with the increase of the organic phosphonic acid doping amount in the ecological modifier, the growth of the festuca arundinacea root system can be rapidly promoted, and the nutrient and moisture absorption is facilitated. As is clear from comparative application examples 1-4, the organic phosphonic acid, the sulfur powder and the vulcanized bacterial agent play an important role in reducing the alkalinity of vegetation concrete, HEDP can quickly reduce the early alkalinity, but as cement hydration is continuously carried out, HEDP is gradually consumed, and the alkalinity is increased; under natural conditions, the alkali-reducing effect of the sulfur powder is slow, the alkali-reducing effect can be generated only about one or two months, and the addition of the vulcanized bacteria can promote the sulfur powder to be oxidized into sulfuric acid rapidly, so that the alkali-reducing effect is accelerated.
The present application is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present application are intended to be included in the scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims (9)
1. The vegetation concrete ecological modifier based on the organic phosphonic acid and sulfur powder composite alkali reduction is characterized by comprising the following components in parts by mass: 1-8 parts of biochar, 0.5-4.5 parts of organic phosphonic acid, 0.02-0.3 part of sulfur powder, 0.8-1.5 parts of organic fertilizer, 0.02-0.08 part of compound fertilizer, 0.02-0.12 part of slow release fertilizer, 0.01-0.05 part of water-retaining agent and 0.001-0.006 part of vulcanized bacterial agent;
The compound fertilizer is a nitrogen-phosphorus-potassium ternary compound fertilizer.
2. The vegetation concrete ecological modifier based on organic phosphonic acid and sulfur powder composite alkali reduction according to claim 1, which is characterized in that,
The biochar is one of wheat straw biochar, corn straw biochar, rice hull biochar and peanut hull biochar;
The organic phosphonic acid is one of 2-phosphonobutane-1, 2, 4-tricarboxylic acid (phosphonobutane tricarboxylic acid), ethane-1-hydroxy-1, 1-diphosphonic acid (hydroxyethylidene diphosphonic acid), nitro tricarboxylic acid (methylenephosphonic acid), ethylenediamine tetra (methylenephosphonic acid) and diethylenetriamine penta (methylenephosphonic acid);
The sulfur powder is elemental sulfur, and the particle size is 16-100 meshes;
the organic fertilizer is one of fermented chicken manure, fermented sheep manure and fermented cow manure;
The effective nutrients of the compound fertilizer are 40-60%;
the slow release fertilizer is MU slow release fertilizer.
3. The vegetation concrete ecological modifier based on organic phosphonic acid and sulfur powder composite alkali reduction according to claim 1, which is characterized in that,
The water-retaining agent is formed by mixing SPA water-absorbent resin and polyacrylamide according to the mass ratio of 1:1.5-2;
The effective viable count of the vulcanized bacterial agent is more than or equal to 200 hundred million/g, and the effective viable count is at least one of thiobacillus thiooxidans, ferrous thiobacillus thiooxidans and thiobacillus denitrificans.
4. A method for preparing the vegetation concrete ecological modifier based on the composite alkali reduction of organic phosphonic acid and sulfur powder as claimed in any one of claims 1 to 3, which comprises the following steps:
weighing biochar, organic fertilizer and vulcanized bacterial agent according to a proportion, and uniformly mixing to obtain a mixture;
mixing organic phosphonic acid, sulfur powder, compound fertilizer and slow release fertilizer, then adding the mixture and water-retaining agent, and fully and uniformly mixing to obtain the vegetation concrete ecological modifier.
5. The vegetation concrete is characterized by comprising the following components in parts by mass: 100 parts of loam, 2-10 parts of the vegetation concrete ecological modifier of any one of claims 1-3, 3-10 parts of organic matters and 2-14 parts of cement.
6. The vegetation concrete of claim 5 wherein the loam is a field planting soil; the organic matter is one or more of sawdust, rice hulls, peanut shells, vinegar residues and vinasse; the cement is ordinary silicate cement.
7. A method of preparing vegetation concrete as claimed in any of claims 5 to 6 comprising the steps of: mixing loam, organic matter, cement and the vegetation concrete ecological modifier, adding slope protection plant seeds into the surface layer, and adding water and stirring uniformly to obtain vegetation concrete.
8. An application method of the vegetation concrete ecological slope protection according to any one of claims 5 to 6, wherein the vegetation concrete is sprayed on a slope to be repaired, a base layer is sprayed firstly, then a surface layer is sprayed, a non-woven fabric is covered on the surface layer, watering maintenance is carried out, and the non-woven fabric is removed after seeds germinate.
9. The method of claim 8, wherein the base layer has a thickness of 60-100mm and the cover layer has a thickness of 20mm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202410205844.3A CN117778027B (en) | 2024-02-26 | 2024-02-26 | Vegetation concrete ecological modifier based on organic phosphonic acid and sulfur powder composite alkali reduction, and preparation method and application thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202410205844.3A CN117778027B (en) | 2024-02-26 | 2024-02-26 | Vegetation concrete ecological modifier based on organic phosphonic acid and sulfur powder composite alkali reduction, and preparation method and application thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
CN117778027A CN117778027A (en) | 2024-03-29 |
CN117778027B true CN117778027B (en) | 2024-04-26 |
Family
ID=90392989
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202410205844.3A Active CN117778027B (en) | 2024-02-26 | 2024-02-26 | Vegetation concrete ecological modifier based on organic phosphonic acid and sulfur powder composite alkali reduction, and preparation method and application thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN117778027B (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107384415A (en) * | 2017-07-01 | 2017-11-24 | 兰溪市顺光园艺技术有限公司 | The preparation method of salinized soil modifying agent |
CN107417374A (en) * | 2017-06-22 | 2017-12-01 | 兰溪市奥而特农业科技有限公司 | Multifunction soil improver and preparation method thereof |
CN108218565A (en) * | 2017-12-29 | 2018-06-29 | 金华市铁骑士生物科技有限公司 | Alkaline soil improver and preparation method thereof |
CN113816800A (en) * | 2021-10-30 | 2021-12-21 | 史丹利农业集团股份有限公司 | Medium trace element fertilizer for regulating alkaline soil and preparation method thereof |
CN114985433A (en) * | 2022-06-01 | 2022-09-02 | 郑州大学 | Method for full utilization of red mud in soil |
CN115053659A (en) * | 2022-06-23 | 2022-09-16 | 贵州大学 | Red mud yard in-situ matrix improvement and direct vegetation recovery method |
CN115124376A (en) * | 2022-07-13 | 2022-09-30 | 河南省中威春雨植物营养有限公司 | Compound biological fertilizer and preparation method thereof |
-
2024
- 2024-02-26 CN CN202410205844.3A patent/CN117778027B/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107417374A (en) * | 2017-06-22 | 2017-12-01 | 兰溪市奥而特农业科技有限公司 | Multifunction soil improver and preparation method thereof |
CN107384415A (en) * | 2017-07-01 | 2017-11-24 | 兰溪市顺光园艺技术有限公司 | The preparation method of salinized soil modifying agent |
CN108218565A (en) * | 2017-12-29 | 2018-06-29 | 金华市铁骑士生物科技有限公司 | Alkaline soil improver and preparation method thereof |
CN113816800A (en) * | 2021-10-30 | 2021-12-21 | 史丹利农业集团股份有限公司 | Medium trace element fertilizer for regulating alkaline soil and preparation method thereof |
CN114985433A (en) * | 2022-06-01 | 2022-09-02 | 郑州大学 | Method for full utilization of red mud in soil |
CN115053659A (en) * | 2022-06-23 | 2022-09-16 | 贵州大学 | Red mud yard in-situ matrix improvement and direct vegetation recovery method |
CN115124376A (en) * | 2022-07-13 | 2022-09-30 | 河南省中威春雨植物营养有限公司 | Compound biological fertilizer and preparation method thereof |
Also Published As
Publication number | Publication date |
---|---|
CN117778027A (en) | 2024-03-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN106613470B (en) | alkali-reducing plant growth base material suitable for vegetation concrete and preparation method thereof | |
CN103073362B (en) | Preserve moisture and fertility cultivation matrix of a kind of wilkinite and bacterium slag compound and preparation method thereof | |
CN102301848A (en) | Method for comprehensively improving saline and alkaline land soil | |
CN104788265A (en) | Saline-alkali soil biological improved fertilizer based on high-sulfur gangue and preparation method thereof | |
CN107629798A (en) | Acidic soil conditioner and application | |
CN111499466B (en) | Slow-release soil conditioner suitable for desert soil planting and application thereof | |
CN113929522A (en) | Mine restoration base material and method for restoring mine pollution by using same | |
CN112812779A (en) | Coastal petroleum polluted soil remediation agent and application thereof | |
CN113583682B (en) | Alkali-controlling conditioner for reducing alkalinity of coral sand and application thereof | |
CN111248028A (en) | Soil restructuring substance and preparation method and application thereof | |
CN102265730A (en) | Method for improving south paddy soil used for planting blueberry | |
CN114014715A (en) | Saline-alkali soil improvement and restoration agent, preparation method, fertilizer and seed dressing agent | |
CN113527007A (en) | Saline-alkali soil improver modified by lignite and preparation method thereof | |
CN117778027B (en) | Vegetation concrete ecological modifier based on organic phosphonic acid and sulfur powder composite alkali reduction, and preparation method and application thereof | |
CN108947409B (en) | Carbon-fixing vegetation concrete | |
CN1487052A (en) | Saline-alkaline land modifier | |
CN116076189A (en) | Method for promoting improvement of red mud soil formation and vegetation recovery by sintering process | |
CN115119701A (en) | Rice cultivation method using straw compost and environment-friendly enzyme as base fertilizer | |
CN114342729A (en) | Organic planting method for pecans | |
CN108770635B (en) | Matrix modifier suitable for planting tropical coral island trees | |
CN105694896A (en) | Acid soil conditioner containing biological amide and organic amine as well as preparation method of soil conditioner | |
CN111517872A (en) | Gypsum coated slow release fertilizer and preparation method and application thereof | |
CN111492933A (en) | Magnolia denudata seedling growing compound soil and preparation method and application thereof | |
CN117720383B (en) | Organomineral mixture and method for improving saline-alkali soil and raising seedlings by using same | |
CN115057737B (en) | Decomposition type compound fertilizer doped with humic acid and preparation method thereof |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |