CN105175194A - Wet-process desulfurized waste saline-alkaline soil biological improvement fertilizer and preparation method thereof - Google Patents
Wet-process desulfurized waste saline-alkaline soil biological improvement fertilizer and preparation method thereof Download PDFInfo
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- CN105175194A CN105175194A CN201510671019.3A CN201510671019A CN105175194A CN 105175194 A CN105175194 A CN 105175194A CN 201510671019 A CN201510671019 A CN 201510671019A CN 105175194 A CN105175194 A CN 105175194A
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- 239000002689 soil Substances 0.000 title claims abstract description 74
- 239000003337 fertilizer Substances 0.000 title claims abstract description 55
- 239000002699 waste material Substances 0.000 title claims abstract description 53
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title abstract description 17
- 230000006872 improvement Effects 0.000 title abstract description 8
- 239000004021 humic acid Substances 0.000 claims abstract description 36
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000000126 substance Substances 0.000 claims abstract description 7
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000004202 carbamide Substances 0.000 claims abstract description 6
- 239000011368 organic material Substances 0.000 claims abstract description 3
- 150000003839 salts Chemical class 0.000 claims description 51
- 230000004048 modification Effects 0.000 claims description 41
- 238000012986 modification Methods 0.000 claims description 41
- 239000011505 plaster Substances 0.000 claims description 37
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 16
- 238000003756 stirring Methods 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 8
- 239000003610 charcoal Substances 0.000 claims description 6
- VSNHCAURESNICA-UHFFFAOYSA-N Hydroxyurea Chemical compound NC(=O)NO VSNHCAURESNICA-UHFFFAOYSA-N 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 210000002966 serum Anatomy 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 14
- 230000001976 improved effect Effects 0.000 abstract description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 5
- 230000035558 fertility Effects 0.000 abstract description 5
- 239000003546 flue gas Substances 0.000 abstract description 5
- 239000010440 gypsum Substances 0.000 abstract description 4
- 229910052602 gypsum Inorganic materials 0.000 abstract description 4
- 238000011161 development Methods 0.000 abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- DZHMRSPXDUUJER-UHFFFAOYSA-N [amino(hydroxy)methylidene]azanium;dihydrogen phosphate Chemical compound NC(N)=O.OP(O)(O)=O DZHMRSPXDUUJER-UHFFFAOYSA-N 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 230000008569 process Effects 0.000 description 6
- 239000002002 slurry Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 4
- 239000003513 alkali Substances 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 238000006477 desulfuration reaction Methods 0.000 description 3
- 230000023556 desulfurization Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- 238000009938 salting Methods 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- 102000004160 Phosphoric Monoester Hydrolases Human genes 0.000 description 2
- 108090000608 Phosphoric Monoester Hydrolases Proteins 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 2
- 235000012343 cottonseed oil Nutrition 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 244000241235 Citrullus lanatus Species 0.000 description 1
- 235000012828 Citrullus lanatus var citroides Nutrition 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000004737 colorimetric analysis Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000004720 fertilization Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000009331 sowing Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000009269 windrow composting Methods 0.000 description 1
Landscapes
- Fertilizers (AREA)
Abstract
The invention discloses a wet-process desulfurized waste saline-alkaline soil biological improvement fertilizer and a preparation method thereof. The fertilizer is made of desulfurized gypsum, organic materials and chemical fertilizers through mixing and comprises the following components in parts by weight: 70.0 to 90.0 parts of desulfurized gypsum, 9.0 to 16.0 parts of humic acid, 3.0 to 5.3 parts of biological carbon, 9.0 to 18.0 parts of urea phosphate and 4.5 to 10.0 parts of urea. By adopting the method disclosed by the invention, wet-process desulfurized wastes are utilized, organic substances are added, a very good effect of improving saline-alkaline soil is good, the soil fertility is improved, the crop growth can be promoted, the self-rehabilitation ability of the soil is enhanced and the quality of cultivated land is improved. Moreover, coal-fired flue gas desulfurized wastes can be prevented from polluting the environment, and a win-win scheme which not only complies with circular economy development but also protects the environment is realized.
Description
Technical field
The application belongs to fertilizer, technical field of land improvement, specifically, relates to a kind of wet desulphurization waste salt affected soil biological modification fertilizer and preparation method thereof.
Background technology
There is a large amount of saltingss in China.According to Second National soil survey information statistics (1996), China's saline-alkali soil ground area is about 3,500 ten thousand hectares.Due to many-sided reasons such as weathers, this numeral is also in continuous increase.These soil not only can not make crop grow very well, have also to the toxic effect of crop, What is more, and not even a blade of grass grows in the saline and alkaline soil had, and lies waste all the year round, greatly have impact on agriculture production and the ecotope of China.Salt affected soil is ploughed as important deposit, and China exists a large amount of saltingss, if can carry out improvement to these soils and effectively utilize, to the cultivated area increasing China, improves Oasis Area ecotope, increases farmers' income, all significant.
Along with carrying out of China's coal burning pollution preventing and controlling, create a large amount of desulfurated plasters.According to the estimation of national environmental protection portion latest data, China's year desulfurated plaster output more than 2,500 ten thousand tons, and is all increasing every year.And these numbers are moved to windrow composting or landfill so that desulfurated plaster is necessarily most as waste, cause pollution to environment, how disposing these these desulfurated plasters is the difficult problems that must solve.
The large-area saltings of coal-fired flue gas desulfurization gypsum improvement China is utilized to be an effective approach.Become saline-alkali wasteland on the one hand, low-yield land is good farmland, this is for solution China grain security, increase arable land and farmers' income, and ecology recovering vegetation has the meaning of particularly important; Solve annual number on the other hand in the handling problems of the desulfurated plaster of ten million ton, reduce it and take up an area and secondary pollution, " turning waste into wealth ", achieves real recycling economy.
Summary of the invention
In view of this, technical problems to be solved in this application are to solve China's salt affected soil and counting in the disposal of desulfurated plaster necessarily, the present invention utilizes heat power plant's wet desulphurization Gypsum from Flue Gas, then add humic acid, charcoal and soil synergy chemical fertilizer material thus provide a kind of can play improvement salt affected soil, culture fertility, farm crop can be promoted growth and wet desulphurization waste salt affected soil biological modification fertilizer of effect of reinforced soil self-regeneration and preparation method thereof.
In order to solve the problems of the technologies described above, this application discloses a kind of wet desulphurization waste salt affected soil biological modification fertilizer, this fertilizer is made up of desulfurated plaster, organic materials and chemical fertilizer mixture, comprises following components by weight percent:
Preferably, described wet desulphurization waste salt affected soil biological modification fertilizer, comprises following components by weight percent:
Further, CaSO in described desulfurated plaster
42H
2the content of O is 75-85%, and water ratio is 10-15%.
Further, described fertilizer granularity≤10 order.
Disclosed herein as well is a kind of preparation method of above-mentioned wet desulphurization waste salt affected soil biological modification fertilizer, comprise the following steps: with humic acid solution; By desulfurated plaster and described humic acid solution mixture; Configuration wet desulphurization waste salt affected soil biological modification fertilizer.
Further, the preparation method of described wet desulphurization waste salt affected soil biological modification fertilizer, comprises the following steps:
Get humic acid, add water, stir under room temperature condition, make it dissolve completely, obtain humic acid solution;
Get desulfurated plaster to mix with described humic acid solution, add phosphoric acid, stir under room temperature condition, described desulfurated plaster and humic acid solution are mixed, obtain humic acids and desulfurated plaster mixed serum;
Get charcoal, Ureaphil, urea adds in described humic acids and desulfurated plaster mixed serum, mix under room temperature condition, stir, crushed after being dried, cross 10 mesh sieves and obtain salt affected soil biological modification fertilizer.
Further, during described outfit humic acid solution, the mass ratio of humic acid and water is 1:15.
Further, after desulfurated plaster mixes with described humic acid solution, the concentration adding phosphoric acid is 51.0%, and add-on is 1/10-1/16 of described desulfurated plaster quality.
Further, described drying temperature is 85 DEG C.
Compared with prior art, the application can obtain and comprise following technique effect:
1) wet desulphurization waste is used, with the addition of organic substance by method of the present invention, has good improved effect, culture fertility to salt affected soil, can promote production estimation, reinforced soil self-regeneration power, improves farmland quality.
2) simultaneously flue gas desulfurization waste of fire coal can be avoided the pollution of environment, achieve one and not only met recycling economy development but also the doulbe-sides' victory scheme of protection of the environment.
Certainly, the arbitrary product implementing the application must not necessarily need to reach above-described all technique effects simultaneously.
Embodiment
Describe the embodiment of the application in detail below with reference to embodiment, by this to the application how utilisation technology means solve technical problem and the implementation procedure reaching technology effect can fully understand and implement according to this.
The preparation method of embodiment 1 wet desulphurization waste salt affected soil biological modification fertilizer
Desulfurated plaster: the wet desulphurization waste picking up from heat power plant, wherein CaSO
42H
2the content of O is 75 ~ 85%;
Take the humic acid of 8kg, add 0.12m
3water, fully stir, be mixed with humic acid solution.
Take desulfurated plaster 40kg, take the phosphatase 24 kg of 51%, desulfurated plaster and phosphoric acid are joined in the humic acid solution be mixed with simultaneously, fully stirs, be mixed with uniform slurries.
Take charcoal 2kg, Ureaphil 5kg, urea 4kg, all join the slurries of humic acid and the desulfurated plaster be mixed with, fully stir, make it mix.Use drying plant to be dried at 85 DEG C, then through crushing and screening process, acquisition granularity is that the product in 10 orders is wet desulphurization waste salt affected soil biological modification fertilizer.
The preparation method of embodiment 2 wet desulphurization waste salt affected soil biological modification fertilizer
Desulfurated plaster: the wet desulphurization waste picking up from heat power plant, wherein CaSO
42H
2the content of O is 75 ~ 85%;
Take the humic acid of 9kg, add 0.135m
3water, fully stir, be mixed with humic acid solution.
Take desulfurated plaster 70kg, take the phosphatase 24 .5kg of 51%, desulfurated plaster and phosphoric acid are joined in the humic acid solution be mixed with simultaneously, fully stirs, be mixed with uniform slurries.
Take charcoal 3.0kg, Ureaphil 9kg, urea 4.5kg, all join the slurries of humic acid and the desulfurated plaster be mixed with, fully stir, make it mix.Use drying plant to be dried at 85 DEG C, then through crushing and screening process, acquisition granularity is that the product in 10 orders is wet desulphurization waste salt affected soil biological modification fertilizer.
The preparation method of embodiment 3 wet desulphurization waste salt affected soil biological modification fertilizer
Desulfurated plaster: the wet desulphurization waste picking up from heat power plant, wherein CaSO
42H
2the content of O is 75 ~ 85%;
Take the humic acid of 16kg, add 0.24m
3water, fully stir, be mixed with humic acid solution.
Take desulfurated plaster 90kg, take the phosphoric acid 5.625kg of 51%, desulfurated plaster and phosphoric acid are joined in the humic acid solution be mixed with simultaneously, fully stirs, be mixed with uniform slurries.
Take charcoal 5.3kg, Ureaphil 18kg, urea 10kg, all join the slurries of humic acid and the desulfurated plaster be mixed with, fully stir, make it mix.Use drying plant to be dried at 85 DEG C, then through crushing and screening process, acquisition granularity is that the product in 10 orders is wet desulphurization waste salt affected soil biological modification fertilizer.
The compliance test result of embodiment 4 wet desulphurization waste salt affected soil biological modification fertilizer
Wet desulphurization waste salt affected soil biological modification fertilizer prepared by application above-described embodiment 1, carry out potted plant experiment in the controlled environment chamber, experimentation is as follows:
1, Setup Experiments three process, use wet desulphurization waste salt affected soil biological modification fertilizer (25g/ basin), use desulfurated plaster (25g/ basin) and do not use the blank (CK) of any material.Each process arranges three repetitions.
2, take from saltings salt affected soil (specific conductivity EC=6.99dS/m, pH=8.76) to take back laboratory, cross 1mm sieve after natural air drying, the saline-alkali soil after sieving puts into the baking oven baking 2h of 160 DEG C, fills basin after cooling.
The specification of basin 3, used is diameter is 15cm, and height is the basin of 20cm.The saline-alkali soil quality filled in each basin is equal, and the wet desulphurization waste salt affected soil biological modification fertilizer weighed up and desulfurated plaster are applied in corresponding basin, and applying the degree of depth is 5cm, mixes with salt affected soil.
4, water and make the salt affected soil in basin completely drenched, sow after placing 24h.Full, the uniform cotton seeds of picking seed, 15 seeds sowed by every basin, and rewater 100mL, and the membrane covering of basin mouth, tightens with bungee, put into phytotron, and temperature controls at 25 DEG C ~ 30 DEG C.
5, detect the application effect of wet desulphurization waste salt affected soil biological modification fertilizer, detection method is as follows, and detected result is in table 1, table 2:
A. soil conductivity (EC) adopts DDSJ-30A type electric conductivity instrument to measure;
B. soil pH value adopts SartoriusPB-10 type pH meter to measure;
The application effect table of table 1 wet desulphurization waste salt affected soil biological modification fertilizer
The application effect table of table 2 wet desulphurization waste salt affected soil biological modification fertilizer
The seedling rate of cotton can be improved after using wet desulphurization waste salt affected soil biological modification fertilizer as can be seen from the table, 51.8% and 123.7% is improved respectively than the seedling rate using desulfurated plaster and blank (CK), there is promoter action clearly to cotton seeds emerging on saltings, salt affected soil tool is had some improvement.
The compliance test result of embodiment 5 wet desulphurization waste salt affected soil biological modification fertilizer
Wet desulphurization waste salt affected soil biological modification fertilizer prepared by application above-described embodiment 1, in Xinjiang, the 8th teacher 134 12 company's salt affected soils have carried out kind of watermelon planting experiment, and experimentation is as follows:
1, Setup Experiments two process, use wet desulphurization waste salt affected soil biological modification fertilizer (750kg/666.7m
2) and do not use wet desulphurization waste salt affected soil biological modification fertilizer (CK).Adopt and manually sow mode, sowing the degree of depth is 0 ~ 20cm.
2 until results, and the conditions such as two Term Fertilizations processed, water irrigation, the applications of pesticide and field management are all consistent.
3, detect the application effect of wet desulphurization waste salt affected soil biological modification fertilizer, detection method is as follows, and detected result is in table 3, table 4 and table 5:
A. soil conductivity (EC) adopts DDSJ-30A type electric conductivity instrument to measure;
B. soil pH value adopts SartoriusPB-10 type pH meter to measure;
C. the soil organism adopts potassium bichromate Outside Heating Method to measure;
D. content of soil available phosphor adopts NaHCO3 lixiviate-molybdenum antimony resistance colorimetric method to measure;
The application effect table of table 3 wet desulphurization waste salt affected soil biological modification fertilizer
The application effect synopsis of table 4 dealkalize conditioned fertilizer
The application effect synopsis of table 5 dealkalize conditioned fertilizer
Obvious effect is had for soil alkaline improvement, culture fertility after applying wet desulphurization waste salt affected soil biological modification fertilizer as can be seen from the table.
Wet desulphurization waste is used, with the addition of organic substance by method of the present invention, has good improved effect, culture fertility to salt affected soil, can promote production estimation, reinforced soil self-regeneration power, improves farmland quality.Simultaneously flue gas desulfurization waste of fire coal can be avoided the pollution of environment, achieve one and not only met recycling economy development but also the doulbe-sides' victory scheme of protection of the environment.
As employed some vocabulary to censure specific components in the middle of specification sheets and claim.Those skilled in the art should understand, and may have different noun to call same composition.This specification and claims are not used as with the difference of title the mode distinguishing composition, but are used as the criterion of differentiation with composition difference functionally." comprising " as mentioned in the middle of specification sheets and claim is in the whole text an open language, therefore should be construed to " comprise but be not limited to "." roughly " refer to that in receivable limit of error, those skilled in the art can solve the technical problem within the scope of certain error, reach described technique effect substantially.Specification sheets subsequent descriptions is implement the better embodiment of the application, and right described description is for the purpose of the rule that the application is described, and is not used to the scope limiting the application.The protection domain of the application is when being as the criterion depending on the claims person of defining.
Also it should be noted that, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the commodity of a series of key element or system not only comprises those key elements, but also comprise other key elements clearly do not listed, or also comprise by this commodity or the intrinsic key element of system.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within the commodity or system comprising described key element and also there is other identical element.
Above-mentioned explanation illustrate and describes some preferred embodiments of the present invention, but as previously mentioned, be to be understood that the present invention is not limited to the form disclosed by this paper, should not regard the eliminating to other embodiments as, and can be used for other combinations various, amendment and environment, and can in invention contemplated scope described herein, changed by the technology of above-mentioned instruction or association area or knowledge.And the change that those skilled in the art carry out and change do not depart from the spirit and scope of the present invention, then all should in the protection domain of claims of the present invention.
Claims (9)
1. a wet desulphurization waste salt affected soil biological modification fertilizer, is characterized in that described fertilizer is made up of desulfurated plaster, organic materials and chemical fertilizer mixture, specifically comprises following components by weight percent:
2. wet desulphurization waste salt affected soil biological modification fertilizer as claimed in claim 1, is characterized in that, comprise following components by weight percent:
3. wet desulphurization waste salt affected soil biological modification fertilizer as claimed in claim 2, is characterized in that, CaSO in described desulfurated plaster
42H
2the content of O is 75-85%, and water ratio is 10-15%.
4. wet desulphurization waste salt affected soil biological modification fertilizer as claimed in claim 3, is characterized in that, described fertilizer granularity≤10 order.
5. the preparation method of the wet desulphurization waste salt affected soil biological modification fertilizer as described in any one of claim 1-4, is characterized in that comprising the following steps: with humic acid solution; By desulfurated plaster and described humic acid solution mixture; Configuration wet desulphurization waste salt affected soil biological modification fertilizer.
6. the preparation method of wet desulphurization waste salt affected soil biological modification fertilizer as claimed in claim 5, is characterized in that, comprise the following steps:
Get humic acid, add water, stir under room temperature condition, make it dissolve completely, obtain humic acid solution;
Get desulfurated plaster to mix with described humic acid solution, add phosphoric acid, stir under room temperature condition, described desulfurated plaster and humic acid solution are mixed, obtain humic acids and desulfurated plaster mixed serum;
Get charcoal, Ureaphil, urea adds in described humic acids and desulfurated plaster mixed serum, mix under room temperature condition, stir, crushed after being dried, cross 10 mesh sieves and obtain salt affected soil biological modification fertilizer.
7. the preparation method of wet desulphurization waste salt affected soil biological modification fertilizer as claimed in claim 6, it is characterized in that, during described outfit humic acid solution, the mass ratio of humic acid and water is 1:15.
8. the preparation method of wet desulphurization waste salt affected soil biological modification fertilizer as claimed in claim 7, it is characterized in that, after desulfurated plaster mixes with described humic acid solution, the concentration adding phosphoric acid is 51.0%, and add-on is 1/10-1/16 of described desulfurated plaster quality.
9. the preparation method of wet desulphurization waste salt affected soil biological modification fertilizer as claimed in claim 8, it is characterized in that, described drying temperature is 85 DEG C.
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Cited By (7)
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| CN105638011A (en) * | 2016-01-29 | 2016-06-08 | 四川农业大学 | Improving method of coastal high-chlorine saline soil |
| CN106635026A (en) * | 2016-12-16 | 2017-05-10 | 中国农业大学 | Biomass charcoal-desulfurization gypsum soil conditioner and preparation method and application thereof |
| CN106929034A (en) * | 2017-04-20 | 2017-07-07 | 中国科学院生态环境研究中心 | A kind of solid waste prepares the new technology of saline-alkali soil conditioner |
| CN109168397A (en) * | 2018-10-26 | 2019-01-11 | 青岛农业大学 | A kind of charcoal improvement salt marsh indigenous method |
| CN110272744A (en) * | 2019-07-08 | 2019-09-24 | 宁夏大学 | A kind of compound desulfurized gypsum biomass carbon base alkali-affected soil conditioner and the preparation method and application thereof |
| CN111334302A (en) * | 2020-02-26 | 2020-06-26 | 美丽国土（北京）生态环境工程技术研究院有限公司 | Modified biomass charcoal-based saline-alkali soil improver |
| CN112409106A (en) * | 2020-12-14 | 2021-02-26 | 河南省予卓信息科技有限公司 | High-nutrition environment-friendly compound fertilizer formula for landscaping |
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