CN102994096A - Use of mild alkali-affected soil conditioner - Google Patents
Use of mild alkali-affected soil conditioner Download PDFInfo
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Abstract
The invention relates to use of mild alkali-affected soil conditioner in the aspect of improving soil. The mild alkali-affected soil conditioner comprises the following raw materials, by weight, 70-80 parts of desulfuration waste, 5-10 parts of inorganic accelerator and 10-20 parts of organic accelerator. The mild alkali-affected soil conditioner uses calcium ions in the desulfuration waste to substitute exchangeable sodium so as to reduce alkalization degree of the soil. Simultaneously, by means of a good pore structure and physical performance of the organic accelerator, a physical behavior of the soil and a granular structure of the soil are improved, a pH value of the soil is reduced, and soil fertility is improved. The inorganic accelerator can also improve the granular structure of the soil. The soil fertility can be further improved by combining inorganic fertilizer and organic fertilizer, and nutritious ingredients are provided for crop growth. The mild alkali-affected soil conditioner can effectively overcome the defect of unbalanced nutritious elements in the soil, improves soil fertility, loosens the soil, improves fertilizer efficiency, and enables a soil salinization phenomenon to be avoided fundamentally.
Description
Technical field
The present invention relates to a kind of chemical reagent that is used on the soil, in particular, relate to a kind of low-grade alkalization soil improvement agent and working method thereof, and the application of this low-grade alkalization soil improvement agent, the soil improvement field belonged to.
Background technology
The method of domestic soil improvement, especially alkaline land improving and technology are summed up roughly as follows: (1) is physically improved: level land, deep plough sun the earth which has been ploughed up, in time loosen the soil, raise landform, microcell is improved the soil; (2) water conservancy improvement: fill with deploying cover, storage fresh water on salinealkali land for leaching, washing salinity by irrigation, underground salt discharge; (3) chemical modifying: gypsuming, phosphogypsum, calcium superphosphate, humic acid, peat, acid-sludge etc.; (4) biological modification: rice cultivation, plantation salt-tolerant plant sesbania etc., or use germ fertilizer etc.
These improving technologies and method, existing ancient technology, as level land, deep plough sun the earth which has been ploughed up, in time loosen the soil, microcell is improved the soil, washing salinity by irrigation, rice cultivation, plantation salt-tolerant plant sesbania etc.; Tradition modification method in modern age is also arranged, as filling with deploying cover, storage fresh water on salinealkali land for leaching, washing salinity by irrigation, underground salt discharge and chemical modifying technology etc.; The novel soil conditioner (such as the NPK synergistic agent) that utilizes in addition the biological chemistry new technology to develop, and utilize type material and advanced operating technique to implement underground hidden pipe salt discharge engineering etc.
Chinese patent application CN1377936A disclosed " utilize waste gypsum plate produce the method and products thereof of saline-alkali soil conditioner and use ", principle is the exchangeable sodium in the calcium sulfate displacement soil that utilizes in the gypsum, just can be used for improveing soil but waste gypsum plate need to be processed fragmentation.If the modifying agent granularity is large after broken, then be unfavorable for the ion exchange reaction, improved effect is poor; If want broken rear modifying agent granularity very little, then to expend a large amount of energy, the cost height of soil improvement can't be born to the peasant.Chinese patent application CN101624523A disclosed " a kind of saline soil ", to form than by Tai-Ace S 150, ferrous ammonium sulphate and sal epsom mixed preparing by Different Weight, making this modifying agent needs a large amount of chemical raw materials, rather than utilizes trade waste, and cost is higher.Chinese patent CN1664064A disclosed " a kind of alkaline soil improver " mainly is that phosphogypsum, stalk and the urea that utilizes different ratios is made soil improvement agent; Utilize the modifying agent that phosphogypsum makes because the heavy metal in the phosphogypsum and some hazardous trace elements content are higher, can cause the permissible value that heavy metal in soil after the improvement and hazardous trace elements surpass national standard.
Generally speaking, shortcoming and technical problem that prior art exists are: process is complicated, and cost is high, and effect is not very good.
Summary of the invention
One of purpose of the present invention is to provide a kind of low-grade alkalization soil improvement agent.
Another object of the present invention is to provide the working method of above-mentioned low-grade alkalization soil improvement agent.
Another purpose of the present invention is to provide the application of above-mentioned low-grade alkalization soil improvement agent aspect soil improvement.
Low-grade alkalization soil improvement agent provided by the invention comprises the raw material of following weight part: 70～80 parts in desulfurization waste, 10～20 parts of 5～10 parts of inorganic accelerators and organic promoters.
Wherein, described desulfurization waste is coal-burning power plant's wet fuel gas desulfurizing technology byproduct.Preferred desulfurated plaster.
Wherein, described desulfurated plaster is the desulfurated plaster (being the byproduct of coal-fired plant flue gas desulfurization method of limestone-gypsum technique) that produces behind the coal-fired flue gas desulfurization, 70%～90% of its weight, terra alba CaSO
42H
2O, grain graininess are 30～50 microns.
The present invention utilizes the desulfurization waste, especially calcium ion (the Ca in the desulfurated plaster
2+) exchange the replaceability sodium ion (Na on the soil colloid
+From the Na in the soil
2CO
3, NaHCO
3), make sodium ion enter the soil solution from soil colloid, replacement becomes Na
2SO
4, sodium ion can be with oozing under the irrigation water or draining via discharge channel.Thereby reduce the basicity of soil, improve the physical behavior of soil and the crumb structure of soil.Simultaneously, the calcium in the desulfurated plaster (Ca) and sulphur (S) element are important plant nutrient ingredient, and suitable additional these two kinds of nutrients can promote the growth of plant.
Wherein, described inorganic accelerator is selected from: one or more in oyster shell whiting, carapace powder, weathered coal and the wilkinite etc.Preferred weathered coal.
Wherein, described organic promoter is selected from: one or more in stalk, furfural dregs, biomass char and the gac etc.Preferred stalk and biomass char.
Low-grade alkalization soil improvement agent of the present invention also comprises fertilizer.
Described fertilizer is 0.01～1 part with respect to the weight part of low-grade alkalization soil improvement agent gross weight.Preferred 0.01～0.05 part.
Wherein, described fertilizer is selected from: one or more in animal excrement, poly-maleic acid, sodium alkyl benzene sulfonate, amino acid and the microorganism fertilizer.Preferred microorganism is fertile.
Low-grade alkalization soil improvement agent of the present invention also comprises inorganic fertilizer.
Described inorganic fertilizer is 0.01～1 part with respect to the weight part of low-grade alkalization soil improvement agent gross weight.Preferred 0.05～0.1 part.
Wherein, described inorganic fertilizer is selected from: one or more in urea, vitriolate of tartar, zinc sulfate, monoammonium phosphate and the diammonium phosphate.Preferred urea.
That is to say:
Low-grade alkalization soil improvement agent of the present invention comprises the raw material of following weight part: 70～80 parts in desulfurization waste, 5～10 parts of inorganic accelerators, 10～20 parts of organic promoters, 0～1 part of 0.01～1 part of inorganic fertilizer and fertilizer.
Low-grade alkalization soil improvement agent of the present invention comprises the raw material of following weight part: 70～80 parts in desulfurization waste, 5～10 parts of inorganic accelerators, 10～20 parts of organic promoters, 0～1 part of 0.01～1 part of fertilizer and inorganic fertilizer.
Low-grade alkalization soil improvement agent of the present invention preferably, comprises the raw material of following weight part: 70～80 parts in desulfurization waste, 5～10 parts of inorganic accelerators, 10～20 parts of organic promoters, 0.01～1 part of 0.01～1 part of inorganic fertilizer and fertilizer.
Low-grade alkalization soil improvement agent of the present invention preferably, comprises the raw material of following weight part: 70～80 parts in desulfurization waste, 5～10 parts of inorganic accelerators, 10～20 parts of organic promoters, 0～0.1 part of 0.05～0.1 part of inorganic fertilizer and fertilizer.
Low-grade alkalization soil improvement agent of the present invention preferably, comprises the raw material of following weight part: 70～80 parts in desulfurization waste, 5～10 parts of inorganic accelerators, 10～20 parts of organic promoters, 0～0.1 part of 0.01～0.05 part of fertilizer and inorganic fertilizer.
Low-grade alkalization soil improvement agent of the present invention more preferably, comprises the raw material of following weight part: 70～80 parts in desulfurization waste, 5～10 parts of inorganic accelerators, 10～20 parts of organic promoters, 0.01～0.05 part of 0.05～0.1 part of inorganic fertilizer and fertilizer.
Above-mentioned low-grade alkalization soil improvement agent, the organic promoter that wherein uses preferably, comprising: stalk and biomass char, both weight ratios are: (5～10): (5～10).
Low-grade alkalization soil improvement agent of the present invention more preferably, comprises the raw material of following weight part: 70～80 parts of desulfurated plasters, 5～10 parts of stalks, 5～10 parts of biomass chars, 5～10 parts of weathered coals, 0.01～0.05 part of 0.05～0.1 part in urea and microorganism fertilizer.This soil improvement agent especially is applied to the improvement of low-grade alkalization soil, is applicable to northern arid or semiarid varieties in saline-alkali areas.
The present invention also provides a kind of desulfurated plaster, 70%～90% of its weight, terra alba CaSO
42H
2O, grain graininess are 30～50 microns.It can be used in the above-mentioned low-grade alkalization soil improvement agent.
The working method of above-mentioned low-grade alkalization soil improvement agent provided by the invention comprises: granulation after raw material is mixed obtains described low-grade alkalization soil improvement agent.
Above-mentioned working method if use fertilizer and stalk, can be pulverized them first before raw material mixes.
Wherein, described grinding particle size was wanted 30～60 mesh sieves.Preferred 40 orders.
Soil improvement agent provided by the invention can be used for the improvement of soil, especially is applied to the improvement of low-grade alkalization soil, is applicable to northern arid or semiarid varieties in saline-alkali areas.
The pH value of described low-grade alkalization soil＞8.5, basicity 5～10%, saltiness＜0.5%.
The application of low-grade alkalization soil improvement agent provided by the invention aspect soil improvement.
Wherein, described application comprises: the low-grade alkalization soil improvement agent is applied the soil that needs improvement, then implement to irrigate.
Wherein, the be manured into soil amount of unit surface of low-grade alkalization soil improvement agent of the present invention is determined according to the pH value in this plot and basicity.Sowing amount is 800～1200kg/ mu.
Wherein, the best use age is the autumn of upper one year for apart from soil cultivation time more than one month the time that applies of described low-grade alkalization soil improvement agent.Applying the degree of depth is that the arable layer degree of depth is 15～20cm, preferred 18～20cm.
Wherein, described irrigation is: pour water immediately after the low-grade alkalization soil improvement agent applies, once pour into according to crop institute water requirement.Irrigation quantity is required Total Water.
After certain hour is finished in irrigation, carry out other agricultural operations.
The application of low-grade alkalization soil improvement agent of the present invention before the modifying agent that is manured into soil, also comprises the smooth and laser land leveling in soil.
Wherein, the soil of improvement at first carries out slightly smooth, and purpose is to remove obvious relief region on the soil.
Wherein, described laser land leveling makes the gradient of farming block≤0.05%, preferred 0.05%.
Low-grade alkalization soil improvement agent provided by the invention utilizes the desulfurization waste, and especially the calcium ion in the coal-fired flue gas desulfurization gypsum is replaced the exchangeable sodium on the soil colloid, thereby reduces the basicity of soil.Utilize simultaneously organic promoter, especially good pore texture and the physicals of biomass char are improved the physical behavior of soil and the crumb structure of soil, reduce the pH value of soil; Utilize the stalk can chessom, and can increase soil fertility.Inorganic accelerator can improve the crumb structure of soil such as weathered coal.Auxiliary inorganic fertilizer and fertilizer can further be increase soil fertility again, for plant growth provides nutritive ingredient.
In a word, it is unbalance that the present invention can effectively overcome Nutrient Elements in Soil, improves soil fertility, and chessom increases fertilizer efficiency, and the salting of soil phenomenon is progressively administered at all; And improved some problems of prior art, be better than prior art, had very high economic benefit.
Especially when improving low-grade alkalization soil, the useful technique effect that plays comprises:
1) use then, take effect then, and the alkalization degree of soil is heavier, effect is further obvious; After using, the seedling rate of the crop of planting significantly improves, and the surviving rate of trees improves.Because the chemical reaction of substitutional ion needs a process, crop yield can reach local good farmland level after the 2nd, 3 year.
2) physico-chemical property of soil be improved significantly: the modifying agent that the application of the invention provides, the pH value of soil reduces by 1～2; The alkalization of soils degree before improve 5～10% be reduced to after the improvement below 5%; Soil compaction hardness is obviously reduced, and perviousness obviously improves; Soil salt reduced year by year.
3) preparation technology is simple, raw material sources are abundant: the present invention is that raw material becomes the particulate state modifying agent according to certain proportional range hybrid process, and ratio range is reasonable, can play the synergy that each self-applying of raw material strengthens; And non-pollution discharge in the course of processing; Utilize the soil after the technology improves, the duty of its kind plant is than local same crop traditional irrigation discharge reduction about 1/3rd.
4) through the contents of heavy metal elements in the soil of improvement, the heavy metal content of being planted in the crop kernel all is lower than the content that national standard allows.
5) carbon of the alkali-affected soil after the improvement and vegetation thereof converges up to 2～4 tons of CO
2/ mu year.This is in the situation that does not increase any investment, and the carbon that increases annual millions of ton of meter for country converges, and is to reducing discharging the huge contribution of CO2 and mitigation of climate change.
6) can solve the handling problems of the desulfurization waste that contains excess water of annual several ten million tons of China coal-burning power plant, saltings or low-grade alkalization soil improvement can be become the arable land again simultaneously, improvement ensuing crop well-grown has obvious economic benefit.
Embodiment
Following examples are used for explanation the present invention, but are not used for limiting the scope of the invention.
Used herein to material be and can purchase from the market available conventional material, NM technology contents also is the routine of this area and selects.
Embodiment 1
1, modifying agent: desulfurated plaster 80g, stalk 10g, biomass char 5g, weathered coal 5g, urea 0.05g, microorganism fertilizer 0.01g.
2, working method:
(1) respectively stalk, microorganism fertilizer are pulverized with pulverizer, crossed 60 mesh sieves;
(2) to join stirrer for mixing even for stalk, microorganism fertilizer and above-mentioned other raw materials after will pulverizing, and then joins granulation in the granulating disc, obtains particulate state low-grade alkalization soil improvement agent.
3, improved technology (application of soil improvement agent):
(1) soil of improveing at first carries out slightly smooth, removes obvious relief region on the soil;
(2) carry out laser land leveling, the gradient that makes the farming block is 0.05%;
(3) above-mentioned modifying agent mixes the top layer that is manured into soil (applying the degree of depth is arable layer degree of depth 20cm), and the amount of its unit surface is determined according to pH value and the basicity in this plot, is 800kg/ mu;
(4) implement to irrigate (pouring water immediately after applying), once pour into, irrigation quantity is required Total Water (namely once pouring into 100%);
(5) after certain hour is finished in irrigation, carry out other agricultural operations.
Embodiment 2
1, modifying agent: desulfurated plaster 70g, stalk 5g, biomass char 10g, weathered coal 10g, urea 0.1g, microorganism fertilizer 0.05g.
2, working method:
(1) respectively stalk, microorganism fertilizer are pulverized with pulverizer, crossed 30 mesh sieves;
(2) to join stirrer for mixing even for stalk, microorganism fertilizer and above-mentioned other raw materials after will pulverizing, and then joins granulation in the granulating disc, obtains particulate state low-grade alkalization soil improvement agent.
3, improved technology (application of soil improvement agent):
(1) soil of improveing at first carries out slightly smooth, removes obvious relief region on the soil;
(2) carry out laser land leveling, the gradient that makes the farming block is 0.05%;
(3) above-mentioned modifying agent mixes the top layer that is manured into soil (applying the degree of depth is arable layer degree of depth 20cm), and the amount of its unit surface is determined according to pH value and the basicity in this plot, is 1200kg/ mu;
(4) implement to irrigate (pouring water immediately after applying), once pour into, irrigation quantity is required Total Water;
(5) after certain hour is finished in irrigation, carry out other agricultural operations.
Embodiment 3
1, modifying agent: desulfurated plaster 75g, stalk 8g, biomass char 8g, weathered coal 8.5g, urea 0.08g, microorganism fertilizer 0.03g.
2, working method:
(1) respectively stalk, microorganism fertilizer are pulverized with pulverizer, crossed 40 mesh sieves;
(2) to join stirrer for mixing even for stalk, microorganism fertilizer and above-mentioned other raw materials after will pulverizing, and then joins granulation in the granulating disc, obtains particulate state low-grade alkalization soil improvement agent.
3, improved technology (application of soil improvement agent):
(1) soil of improveing at first carries out slightly smooth, removes obvious relief region on the soil;
(2) carry out laser land leveling, the gradient that makes the farming block is 0.05%;
(3) above-mentioned modifying agent mixes the top layer that is manured into soil (applying the degree of depth is arable layer degree of depth 18cm), and the amount of its unit surface is determined according to pH value and the basicity in this plot, is 1000kg/ mu;
(4) implement to irrigate (pouring water immediately after applying), once pour into, irrigation quantity is required Total Water;
(5) after certain hour is finished in irrigation, carry out other agricultural operations.
Experimental example 1: the test in saltings and demonstration
1, experiment and demonstration district overview
The soil salinization of experiment and demonstration district, alkalization skewness, generally 8.5～8.6, and salt content is also higher greater than 8.5(for pH value, and is the highest above 10g/kg.Water-soluble salt ion analysis result shows that the positively charged ion that content is the highest is Na
+, the negatively charged ion that content is the highest is SO
4 2-, secondly be Cl
-
2, field test results
Various crop seedling rates after the experiment and demonstration district improves with low-grade alkalization soil improvement agent (embodiment of the invention 3) and output are apparently higher than the check plot of not using any soil improvement agent, the average seedling rate of demonstration area paddy rice, oily certain herbaceous plants with big flowers and corn reaches respectively 90.8%, 60.7% and 80.5% after the improvement, does not improve the paddy rice of check plot, oily certain herbaceous plants with big flowers and the average seedling rate of corn and is respectively 52.6%, 27.1% and 67.0%; The grain yield of demonstration area paddy rice, oily certain herbaceous plants with big flowers and corn has on average reached respectively 302.7 kg/acres, 105.6 kg/acres and 282.2 kg/acres after the improvement, and check plot paddy rice, oily certain herbaceous plants with big flowers and the corn kernel mean yield of improvement are not respectively 97.7 kg/acres, 53.8 kg/acres and 167.2 kg/acres.This proves absolutely that applying of soil improvement agent can improve alkali-affected soil, improves crop seedling rate and output.
Experimental example 2: the eco-environmental impact that contains the low-grade alkalization soil improvement agent improvement soil of desulfurated plaster
1, the detected result of heavy metal in soil
(1) variation of soil pH value and salinity
Through using the soil improvement agent that contains desulfurated plaster, no matter be rice cultivation, corn or oily certain herbaceous plants with big flowers (such as experimental example 1), its pH value and salinity have reduction in various degree, the range of decrease of pH value is 1, and the range of decrease of salinity is 55%, 5～10% 5% below (about 2.5%) that are reduced to improvement after of alkalization of soils degree before improve; Soil compaction hardness is obviously reduced, and perviousness has improved 3 times; The reduction of salinity is mainly due to the effect of water.
(2) detected result of heavy metal in soil
In the low-grade alkalization soil improvement agent of the present invention, the desulfurated plaster main component is calcium sulfate, contains simultaneously other trace and the trace elementss such as heavy metal.In order to study them to the impact of edatope and crop, the applicant successively entrusts environment protection and monitoring station, the Inner Mongol and academy of agricultural sciences, Inner Mongol test center (be state approval, the detection unit of qualification is arranged), and soil and corn kernel are analyzed.
Table 1 for the Inner Mongol experimental field (saltings) use the content of the heavy metal in soil of soil improvement agent (embodiment of the invention 3) post processing zone that contains desulfurated plaster, the result shows that the content of the heavy metal in soil of using the soil post processing zone is tested much smaller than the permissible value of national soil quality standard (GB15618-1995) regulation in the Inner Mongol.The content of heavy metal in soil of using the treatment zone of soil improvement agent and not executing the check plot of soil improvement agent does not have significant difference.
Table 1: the Inner Mongol is detected result and the contrast thereof of heavy metal in soil content experimental field
(3) detected result of heavy metal in the crop kernel
The result shows (table 2), and it is general all less than national standard (GB14961-1994) that the Inner Mongol experimental field gathers in the crops in the seed heavy metal content.The content of using the treatment zone that contains the desulfurated plaster soil improvement agent and not executing heavy metal in the check plot results seed of modifying agent is without significant difference.
Table 2: heavy metal content and contrast thereof in the results seed of Inner Mongol
Adopt the low-grade alkalization soil improvement agent of embodiment 1 and 2 preparations to carry out above-mentioned experiment with method.The result shows: the low-grade alkalization soil improvement agent effect of they and embodiment 3 is close, wherein, and take the effect of embodiment 3 as optimum.
Although above the present invention is described in detail with a general description of the specific embodiments, on basis of the present invention, can make some modifications or improvements it, this will be apparent to those skilled in the art.Therefore, these modifications or improvements all belong to the scope of protection of present invention without departing from theon the basis of the spirit of the present invention.
Claims (9)
1. the application of low-grade alkalization soil improvement agent aspect improvement soil is characterized in that described low-grade alkalization soil improvement agent comprises the raw material of following weight part: 70～80 parts in desulfurization waste, 10～20 parts of 5～10 parts of inorganic accelerators and organic promoters.
2. application according to claim 1 is characterized in that, described desulfurization waste is desulfurated plaster.
3. application according to claim 1 and 2 is characterized in that, the pH value of described low-grade alkalization soil＞8.5, basicity 5～10%, saltiness＜0.5%.
4. according to claim 1～3 described application of any one is characterized in that, comprising: the low-grade alkalization soil improvement agent is applied alkaline earth, then implement to irrigate; The sowing amount of described low-grade alkalization soil improvement agent is 800～1200kg/ mu.
5. application according to claim 4 is characterized in that, it is the arable layer degree of depth 15～20cm that described low-grade alkalization soil improvement agent applies the degree of depth.
6. application according to claim 4 is characterized in that, described irrigation is: pour water immediately after the low-grade alkalization soil improvement agent is manured into soil, once pour into according to crop institute water requirement, irrigation quantity is required Total Water.
7. according to claim 4～6 described application of any one is characterized in that, applies in soil before the low-grade alkalization soil improvement agent, also comprises the smooth and laser land leveling to soil.
8. application according to claim 7 is characterized in that, described laser land leveling makes the gradient of farming block≤0.05%.
9. the application of low-grade alkalization soil improvement agent aspect improvement soil, it is characterized in that, described low-grade alkalization soil improvement agent comprises the raw material of following weight part: 70～80 parts of desulfurated plasters, 5～10 parts of stalks, 5～10 parts of biomass chars, 5～10 parts of weathered coals, 0.01～0.05 part of 0.05～0.1 part in urea and microorganism fertilizer.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104629770A (en) * | 2014-11-28 | 2015-05-20 | 酒钢集团吉瑞再生资源开发有限责任公司 | Saline-alkali soil conditioner based on flue gas desulfurization gypsum |
| CN105038801A (en) * | 2015-06-19 | 2015-11-11 | 成都普天泽科技有限公司 | Compound type soil improvement agent for saline alkali soil |
| CN106010554A (en) * | 2016-05-31 | 2016-10-12 | 山东胜伟园林科技有限公司 | Method for carrying out raw soil greening on beach saline and alkaline land by using denitration waste-containing soil conditioner |
| CN107896542A (en) * | 2017-11-13 | 2018-04-13 | 中国科学院东北地理与农业生态研究所 | The modification method of fast lifting salt-soda soil paddy field soil organic matter |
| CN108069809A (en) * | 2018-02-10 | 2018-05-25 | 李同军 | A kind of activating soil conditioning salt-soda soil can exempt from conditioner of deep ploughing and preparation method thereof |
| CN108329924A (en) * | 2018-04-03 | 2018-07-27 | 广东丰康生物科技有限公司 | The application of low-grade alkalization soil conditioner |
| CN110583413A (en) * | 2019-10-18 | 2019-12-20 | 青岛九天智慧农业集团有限公司 | Method for planting peanuts in Xinjiang saline-alkali soil through film mulching |
| CN111393215A (en) * | 2020-04-23 | 2020-07-10 | 大唐环境产业集团股份有限公司 | Soil conditioner and preparation method and application thereof |
| CN115261029A (en) * | 2022-07-28 | 2022-11-01 | 清华大学 | Alkaline soil conditioner, preparation method thereof and alkaline soil conditioning method |
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| CN101417286A (en) * | 2008-12-08 | 2009-04-29 | 天津市农业资源与环境研究所 | Alkaline land soil repair agent |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104629770A (en) * | 2014-11-28 | 2015-05-20 | 酒钢集团吉瑞再生资源开发有限责任公司 | Saline-alkali soil conditioner based on flue gas desulfurization gypsum |
| CN105038801A (en) * | 2015-06-19 | 2015-11-11 | 成都普天泽科技有限公司 | Compound type soil improvement agent for saline alkali soil |
| CN106010554A (en) * | 2016-05-31 | 2016-10-12 | 山东胜伟园林科技有限公司 | Method for carrying out raw soil greening on beach saline and alkaline land by using denitration waste-containing soil conditioner |
| CN107896542A (en) * | 2017-11-13 | 2018-04-13 | 中国科学院东北地理与农业生态研究所 | The modification method of fast lifting salt-soda soil paddy field soil organic matter |
| CN108069809A (en) * | 2018-02-10 | 2018-05-25 | 李同军 | A kind of activating soil conditioning salt-soda soil can exempt from conditioner of deep ploughing and preparation method thereof |
| CN108329924A (en) * | 2018-04-03 | 2018-07-27 | 广东丰康生物科技有限公司 | The application of low-grade alkalization soil conditioner |
| CN110583413A (en) * | 2019-10-18 | 2019-12-20 | 青岛九天智慧农业集团有限公司 | Method for planting peanuts in Xinjiang saline-alkali soil through film mulching |
| CN111393215A (en) * | 2020-04-23 | 2020-07-10 | 大唐环境产业集团股份有限公司 | Soil conditioner and preparation method and application thereof |
| CN115261029A (en) * | 2022-07-28 | 2022-11-01 | 清华大学 | Alkaline soil conditioner, preparation method thereof and alkaline soil conditioning method |
| CN115261029B (en) * | 2022-07-28 | 2024-04-16 | 清华大学 | Alkaline soil conditioner, preparation method thereof and alkaline soil conditioning method |
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