CN113293008A - Saline-alkali soil conditioner and improvement method - Google Patents

Saline-alkali soil conditioner and improvement method Download PDF

Info

Publication number
CN113293008A
CN113293008A CN202110715243.3A CN202110715243A CN113293008A CN 113293008 A CN113293008 A CN 113293008A CN 202110715243 A CN202110715243 A CN 202110715243A CN 113293008 A CN113293008 A CN 113293008A
Authority
CN
China
Prior art keywords
saline
soil
alkali soil
parts
alkali
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.)
Pending
Application number
CN202110715243.3A
Other languages
Chinese (zh)
Inventor
杨海昌
陈伟业
张凤华
王铭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shihezi University
Original Assignee
Shihezi University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shihezi University filed Critical Shihezi University
Priority to CN202110715243.3A priority Critical patent/CN113293008A/en
Publication of CN113293008A publication Critical patent/CN113293008A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K17/00—Soil-conditioning materials or soil-stabilising materials
    • C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B79/00—Methods for working soil
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09C—RECLAMATION OF CONTAMINATED SOIL
    • B09C1/00—Reclamation of contaminated soil
    • B09C1/08—Reclamation of contaminated soil chemically
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2101/00—Agricultural use
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2109/00—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE pH regulation

Abstract

The invention provides a saline-alkali soil conditioner and a conditioning method, and relates to the technical field of soil conditioning. The invention provides a saline-alkali soil conditioner which comprises the following raw materials in parts by weight: 800-1200 parts of mineral filler, 40-60 parts of polymaleic anhydride, 25-40 parts of humic acid and 25-40 parts of wood vinegar, and can reduce the salt content in soil, adjust the pH value of the soil and improve the physical and chemical properties of the saline-alkali soil. In addition, the invention also provides a saline-alkali soil improvement method, which comprises the following steps: irrigating and turning over the saline-alkali soil, then spreading the saline-alkali soil conditioner on the saline-alkali soil twice, and turning over after each spreading; the method can effectively improve the soil of the acid-base land and improve the physicochemical property of the soil.

Description

Saline-alkali soil conditioner and improvement method
Technical Field
The invention relates to the technical field of soil improvement, in particular to a saline-alkali soil conditioner and an improvement method.
Background
Saline-alkali soil refers to soil in which salt contained in the soil affects the normal growth of crops. According to incomplete statistics of the combined country textbook organization and the grain and agriculture organization, the area of the saline-alkali land all over the world is 9.5438 hundred million hectares, wherein 9913 million hectares in China account for about 20% of the cultivated land area in China. The formation of alkaline earth and alkalized soil in China is mostly related to the accumulation of carbonate in soil, so that the alkalization degree is generally high, and plants in serious saline-alkaline earth regions can hardly survive. Therefore, how to improve the saline-alkali soil and reasonably utilize the saline-alkali soil resources becomes a problem which needs to be solved by people urgently.
Disclosure of Invention
The invention aims to provide a saline-alkali soil conditioner which can reduce the salinity in soil, adjust the pH value of the soil and improve the physicochemical property of the saline-alkali soil.
The invention also aims to provide a method for improving the soil of the saline-alkali soil, which can effectively improve the soil of the acid-alkali soil and improve the physicochemical property of the soil.
The technical problem to be solved by the invention is realized by adopting the following technical scheme.
On one hand, the embodiment of the invention provides a saline-alkali soil conditioner which comprises the following raw materials in parts by weight: 1200 parts of mineral filler, 40-60 parts of polymaleic anhydride, 25-40 parts of humic acid and 25-40 parts of pyroligneous.
On the other hand, the embodiment of the invention provides a saline-alkali soil improvement method, which comprises the following steps: irrigating and turning over the saline-alkali soil, then spreading the saline-alkali soil conditioner on the saline-alkali soil twice, turning over after each spreading, and then culturing and maintaining.
Compared with the prior art, the embodiment of the invention has at least the following advantages or beneficial effects:
aiming at the first aspect, the embodiment of the invention provides a saline-alkali soil conditioner which comprises the following raw materials in parts by weight: 1200 parts of mineral filler, 40-60 parts of polymaleic anhydride, 25-40 parts of humic acid and 25-40 parts of pyroligneous.
The saline-alkali soil conditioner comprises the following raw material components:
the mineral filler is used for supplementing nutrient elements required by the growth of crops such as phosphorus, calcium, magnesium, iron, silicon, sulfur and the like for soil, providing surplus effective phosphorus, effective calcium and nutrient elements required by the growth of crops, being beneficial to improving the growth environment of crops, having a certain effect on the yield increase of crops, simultaneously, calcium ions can replace sodium ions of alkaline soil and are changed from sodium-clay to calcium-clay, and the generated Na2SO4Washed away, and sodium ions are gradually reduced, thereby achieving the effect of rapid desalination and dealkalization;
the polymaleic anhydride is polymerized by maleic anhydride, is beneficial to neutralizing the alkalinity of the saline-alkali soil, has the capability of chelating and dissolving substances such as calcium salt and the like in the soil, and can effectively improve the saline-alkali soil;
humic acid is a macromolecular organic substance widely existing in nature, replacement sodium ions in soil can be limited and reduced by adding the humic acid, the degree of alkalization of the soil is reduced, the pH value of the soil is reduced, meanwhile, the porosity of the soil can be increased, and the water retention and permeability of the soil is enhanced;
the wood vinegar is acidic, contains various organic substances such as acid, phenol, aldehyde and the like, has the functions of adjusting the pH degree of soil, reducing the salinity and the alkalization degree of the soil, effectively improving the soil of saline-alkali soil, killing pests such as root nodule nematodes and the like, and inhibiting the propagation of microorganisms which hinder the growth of plants.
By using the saline-alkali soil conditioner, the salinity in the saline-alkali soil can be effectively reduced, the soil alkalinity can be reduced, the physicochemical property of the saline-alkali soil can be improved, and the saline-alkali soil conditioner is convenient and effective to use.
Aiming at the second aspect, the embodiment of the invention provides a saline-alkali soil improvement method, which comprises the following steps: irrigating and turning over the saline-alkali soil, then spreading the saline-alkali soil conditioner on the saline-alkali soil twice, turning over after each spreading, and then culturing and maintaining.
The saline-alkali soil improvement method comprises the steps of firstly, irrigating saline-alkali soil to wash salt, irrigating and turning over the saline-alkali soil to enable water to permeate deep soil of the saline-alkali soil, dissolving salt in the soil, and preliminarily washing off the salt in the soil; then the saline-alkali soil conditioner is spread on the saline-alkali soil by two times, and plowing is carried out after each spreading, so that the saline-alkali soil conditioner and the saline-alkali soil are fully mixed, and the effect of the conditioner is fully exerted; and finally, cultivating the soil to ensure that the saline-alkali soil conditioner fully reacts with substances such as salt in the soil, so that the salinity and alkalinity of the soil are reduced, the pH of the soil is adjusted, the soil is provided with nutrients, the physical and chemical properties of the soil are improved, and the improvement effect of the saline-alkali soil is further improved.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to specific examples.
The invention provides a saline-alkali soil conditioner which comprises the following raw materials in parts by weight: 1200 parts of mineral filler, 40-60 parts of polymaleic anhydride, 25-40 parts of humic acid and 25-40 parts of pyroligneous.
In the embodiment, the saline-alkali soil conditioner comprises the following raw material components:
the mineral filler is used for supplementing nutrient elements required by the growth of crops such as phosphorus, calcium, magnesium, iron, silicon, sulfur and the like for soil, providing surplus effective phosphorus, effective calcium and nutrient elements required by the growth of crops, being beneficial to improving the growth environment of crops, having a certain effect on the yield increase of crops, simultaneously, calcium ions can replace sodium ions of alkaline soil and are changed from sodium-clay to calcium-clay, and the generated Na2SO4Is washed away, sodium ions are gradually reduced, thereby achieving the purpose of rapid removalEffect of salt dealkalization.
The polymaleic anhydride is polymerized by maleic anhydride, is beneficial to neutralizing the alkalinity of the saline-alkali soil, has the capability of chelating and dissolving substances such as calcium salt and the like in the soil, and can effectively improve the saline-alkali soil;
humic acid is a macromolecular organic substance widely existing in nature, replacement sodium ions in soil can be limited and reduced by adding the humic acid, the degree of alkalization of the soil is reduced, the pH value of the soil is reduced, meanwhile, the porosity of the soil can be increased, and the water retention and permeability of the soil is enhanced;
the wood vinegar is acidic, contains various organic substances such as acid, phenol, aldehyde and the like, has the functions of adjusting the pH degree of soil, reducing the salinity and the alkalization degree of the soil, effectively improving the soil of saline-alkali soil, killing pests such as root nodule nematodes and the like, and inhibiting the propagation of microorganisms which hinder the growth of plants.
By using the saline-alkali soil conditioner, the salinity in the saline-alkali soil can be effectively reduced, the soil alkalinity can be reduced, the physicochemical property of the saline-alkali soil can be improved, and the saline-alkali soil conditioner is convenient and effective to use.
Further, in some embodiments of the present invention, the composition comprises the following raw materials by weight: 900 parts of mineral filler, 45 parts of polymaleic anhydride, 30 parts of humic acid and 30 parts of pyroligneous.
In the embodiment, the usage ratio of each raw material component is further limited, so that the raw material components can be better matched with each other and synergized, the improvement effect of the modifier on the saline-alkali soil is further enhanced, the salinity and alkalinity of the soil are better reduced, the pH of the soil is adjusted, the nutrients are better provided for the soil, the physical and chemical properties of the soil are improved, and the use effect of the modifier is further improved.
Further, in some embodiments of the present invention, the composition comprises the following raw materials by weight: 1100 parts of mineral filler, 55 parts of polymaleic anhydride, 35 parts of humic acid and 30 parts of pyroligneous.
In the embodiment, the dosage and the proportion of each raw material component are further limited, so that the raw material components can be better matched with each other and have synergistic interaction, the improvement effect of the modifier on the saline-alkali soil is further enhanced, and the adverse effect on the use effect of a product caused by improper proportion of the raw materials is avoided; therefore, the salinity and alkalinity of the soil can be better reduced, the pH value of the soil can be adjusted, nutrients can be better provided for the soil, the physical and chemical properties of the soil can be improved, and the using effect of the modifying agent can be further improved.
Further, in some embodiments of the invention, the mineral filler is replaced by phosphogypsum or desulfurized gypsum.
In the above examples, phosphogypsum and desulfurized gypsum contain various mineral elements essential or beneficial to plants, which dissolve to produce Ca2+Can replace Na in the saline-alkali soil+Therefore, the alkalinity of the saline-alkali soil is reduced, the dispersibility and the pH value of the saline-alkali soil are improved, the water permeability of the saline-alkali soil is enhanced, and the water retention and permeability of the soil are improved; in addition, the phosphogypsum is solid waste generated in a wet-process phosphoric acid process, the desulfurized gypsum is a byproduct in an FGD process, and the use of the phosphogypsum and the desulfurized gypsum is also beneficial to saving resources, reducing pollution and having high practical value.
Further, in some embodiments of the present invention, 200-360 parts by weight of fly ash is included.
In the embodiment, the fly ash has stronger loosening and air permeability, is weakly acidic, contains more organic matters, N, P, K and other elements, and can neutralize the alkalinity of saline-alkali soil; the organic matters, N, P, K and other elements in the soil can provide sufficient nutrients for the soil, and the soil fertility is enhanced; meanwhile, the granular property of the fly ash is beneficial to improving the structure of the saline-alkali soil, so that the soil porosity is increased, and the soil loosening effect is played, thereby enhancing the air permeability and the water permeability of the saline-alkali soil, and the improvement effect of the modifier on the saline-alkali soil is further promoted by adding the fly ash, so that the practical value of the modifier is further improved.
Further, in some embodiments of the present invention, the composition comprises the following raw materials by weight: 1100 parts of mineral filler, 55 parts of polymaleic anhydride, 35 parts of humic acid, 30 parts of pyroligneous and 330 parts of fly ash.
In the embodiment, the blending ratio of the fly ash and other raw materials is further limited, so that the fly ash and other raw material components can be better matched with each other and have synergistic interaction, the improvement effect of the modifier on the saline-alkali soil is further enhanced, the fly ash loosening soil is enhanced, the air permeability and water permeability of the soil are enhanced, the salinity and alkalinity of the soil are better reduced, the pH value of the soil is adjusted, nutrients are better provided for the soil, the physical and chemical properties of the soil are improved, and the using effect of the modifier is further improved.
Further, in some embodiments of the present invention, the fly ash has a particle size of 50 to 80 μm.
In the above embodiment, the particle size of the fly ash is limited, which is helpful for ensuring the quality of the added fly ash, so that the fly ash can be well mixed with the saline-alkali soil, and can react with substances such as salt in the soil, and the fly ash can be better matched with other raw material components, thereby further enhancing the improvement effect of the fly ash on the saline-alkali soil, improving the effects of adjusting the salinity and alkalinity of the soil, providing nutrients, improving the physical and chemical properties of the soil and the like, and being helpful for further enhancing the use effect of the improver.
The invention also provides a saline-alkali soil improvement method, which comprises the following steps: irrigating and turning over the saline-alkali soil, then spreading the saline-alkali soil conditioner on the saline-alkali soil twice, turning over after each spreading, and then culturing and maintaining.
In the embodiment, saline-alkali soil is irrigated to wash salt, irrigation and turning over are carried out on the saline-alkali soil, so that water permeates deep soil of the saline-alkali soil, the salt in the soil is dissolved, and the salt in the soil is washed out preliminarily; then the saline-alkali soil conditioner is spread on the saline-alkali soil by two times, and plowing is carried out after each spreading, so that the saline-alkali soil conditioner and the saline-alkali soil are fully mixed, and the effect of the conditioner is fully exerted; and finally, cultivating the soil to ensure that the saline-alkali soil conditioner fully reacts with substances such as salt in the soil, so that the salinity and alkalinity of the soil are reduced, the pH of the soil is adjusted, the soil is provided with nutrients, the physical and chemical properties of the soil are improved, and the improvement effect of the saline-alkali soil is further improved.
Further, in some embodiments of the invention, the depth of each turn is 20-30 cm.
In the embodiment, the deep soil of the saline-alkali soil can be effectively loosened by controlling the plowing depth, so that water can fully permeate the soil, and the salt in the soil can be washed away; meanwhile, the saline-alkali soil conditioner can be well and fully mixed with saline-alkali soil, so that the conditioner can fully react with substances such as salt in the saline-alkali soil, the salt alkalinity of the saline-alkali soil is reduced, soil nutrients are supplemented, the physical and chemical properties of the saline-alkali soil are improved, and the use effect of the conditioner is further enhanced.
Further, in some embodiments of the invention, the culture is maintained for 3-10 days.
In the embodiment, the components in the conditioner can be well and fully reacted with the components in the saline-alkali soil by culturing for 3-10 days, so that the salinity and alkalinity of the soil can be well reduced, the pH value of the soil can be improved, the fertility of the soil can be enhanced, the air permeability and the water permeability of the soil can be improved, the physicochemical properties of the saline-alkali soil can be further improved, and the improvement effect on the saline-alkali soil can be further enhanced.
The features and properties of the present invention are described in further detail below with reference to examples.
Example 1
The embodiment provides a saline-alkali soil conditioner, which comprises the following raw material components: 800g of phosphogypsum, 40g of polymaleic anhydride, 25g of humic acid and 25g of pyroligneous.
When the saline-alkali soil conditioner is used, saline-alkali soil is irrigated and ploughed, then the saline-alkali soil conditioner with the proportion is spread to saline-alkali soil of each square meter, the saline-alkali soil conditioner is spread twice during spreading, ploughing is carried out after each spreading, and then cultivation is maintained for 8 days, wherein the ploughing depth is 20 cm.
Example 2
The embodiment provides a saline-alkali soil conditioner, which comprises the following raw material components: 1200g of phosphogypsum, 60g of polymaleic anhydride, 40g of humic acid and 40g of pyroligneous.
When the saline-alkali soil conditioner is used, saline-alkali soil is irrigated and ploughed, then the saline-alkali soil conditioner with the proportion is spread to saline-alkali soil of each square meter, the saline-alkali soil conditioner is spread twice during spreading, ploughing is carried out after each spreading, and then cultivation is maintained for 3 days, wherein the ploughing depth is 25 cm.
Example 3
The embodiment provides a saline-alkali soil conditioner, which comprises the following raw material components: 1000g of phosphogypsum, 50g of polymaleic anhydride, 35g of humic acid and 35g of pyroligneous.
When the saline-alkali soil conditioner is used, saline-alkali soil is irrigated and ploughed, then the saline-alkali soil conditioner with the proportion is spread to saline-alkali soil of each square meter, the saline-alkali soil conditioner is spread twice during spreading, ploughing is carried out after each spreading, and then cultivation is maintained for 7 days, wherein the ploughing depth is 30 cm.
Example 4
The embodiment provides a saline-alkali soil conditioner, which comprises the following raw material components: 900g of phosphogypsum, 45g of polymaleic anhydride, 30g of humic acid and 30g of pyroligneous.
When the saline-alkali soil conditioner is used, saline-alkali soil is irrigated and ploughed, then the saline-alkali soil conditioner with the proportion is spread to saline-alkali soil of each square meter, the saline-alkali soil conditioner is spread twice during spreading, ploughing is carried out after each spreading, and then cultivation is maintained for 5 days, wherein the ploughing depth is 30 cm.
Example 5
The embodiment provides a saline-alkali soil conditioner, which comprises the following raw material components: 1100g of phosphogypsum, 55g of polymaleic anhydride, 35g of humic acid and 30g of pyroligneous.
When the saline-alkali soil conditioner is used, saline-alkali soil is irrigated and ploughed, then the saline-alkali soil conditioner with the proportion is spread to saline-alkali soil of each square meter, the saline-alkali soil conditioner is spread twice during spreading, ploughing is carried out after each spreading, and then cultivation is maintained for 10 days, wherein the ploughing depth is 30 cm.
Example 6
The embodiment provides a saline-alkali soil conditioner, which comprises the following raw material components: 1100g of phosphogypsum, 55g of polymaleic anhydride, 35g of humic acid, 30g of pyroligneous and 200g of fly ash.
When the saline-alkali soil conditioner is used, saline-alkali soil is irrigated and ploughed, then the saline-alkali soil conditioner with the proportion is spread to saline-alkali soil of each square meter, the saline-alkali soil conditioner is spread twice during spreading, ploughing is carried out after each spreading, and then cultivation is maintained for 10 days, wherein the ploughing depth is 30 cm.
Example 7
The embodiment provides a saline-alkali soil conditioner, which comprises the following raw material components: 1100g of phosphogypsum, 55g of polymaleic anhydride, 35g of humic acid, 30g of pyroligneous and 360g of fly ash.
When the saline-alkali soil conditioner is used, saline-alkali soil is irrigated and ploughed, then the saline-alkali soil conditioner with the proportion is spread to saline-alkali soil of each square meter, the saline-alkali soil conditioner is spread twice during spreading, ploughing is carried out after each spreading, and then cultivation is maintained for 10 days, wherein the ploughing depth is 30 cm.
Example 8
The embodiment provides a saline-alkali soil conditioner, which comprises the following raw material components: 1100g of phosphogypsum, 55g of polymaleic anhydride, 35g of humic acid, 30g of pyroligneous and 330g of fly ash.
When the saline-alkali soil conditioner is used, saline-alkali soil is irrigated and ploughed, then the saline-alkali soil conditioner with the proportion is spread to saline-alkali soil of each square meter, the saline-alkali soil conditioner is spread twice during spreading, ploughing is carried out after each spreading, and then cultivation is maintained for 10 days, wherein the ploughing depth is 30 cm.
Test examples
Selecting 8 saline-alkali soil blocks, each block is 1m2The saline-alkali soil conditioner provided in the embodiments 1 to 8 is used for 8 saline-alkali soil, the saline-alkali soil is improved according to the method, and the physical and chemical properties of the soil before and after improvement are compared and analyzed:
table 1 shows the results of soil fertility determination:
TABLE 1
Figure BDA0003134796730000111
From the results in table 1, it is understood that the use of the saline-alkali soil conditioner of the present invention can effectively increase the contents of organic matter and elements such as N, P, K in the soil and effectively improve the soil fertility, in examples 1 to 5 in which no fly ash is added. The modifier provided by the embodiment 4 and the embodiment 5 has better effect, and the modifier added with the fly ash in the embodiment 6-8 has obviously better effect of improving the fertility than the modifier without the fly ash.
Table 2 shows the soil salinity and alkalinity test results:
TABLE 2
Figure BDA0003134796730000121
As can be seen from Table 2, the saline-alkali soil conditioner provided by the invention can effectively reduce the salinity of the soil and adjust the pH value of the soil, wherein the improvement effect of the conditioner provided by the embodiment 6-8 added with the fly ash is obviously better than that of the conditioner without the fly ash.
In summary, the saline-alkali soil conditioner and the improvement method provided by the embodiment of the invention comprise the following raw material components: the mineral filler is used for supplementing nutrient elements required by the growth of crops such as phosphorus, calcium, magnesium, iron, silicon, sulfur and the like to the soil, providing surplus available phosphorus, available calcium and nutrient elements required by the growth of crops, and being beneficial to improving the growth environment of cropsHas certain effect on the yield increase of crops, and simultaneously, calcium ions can replace sodium ions of alkaline soil and change sodium-clay into calcium-clay to generate Na2SO4Washed away, and sodium ions are gradually reduced, thereby achieving the effect of rapid desalination and dealkalization; the polymaleic anhydride is polymerized by maleic anhydride, is beneficial to neutralizing the alkalinity of the saline-alkali soil, has the capability of chelating and dissolving substances such as calcium salt and the like in the soil, and can effectively improve the saline-alkali soil; humic acid is a macromolecular organic substance widely existing in nature, replacement sodium ions in soil can be limited and reduced by adding the humic acid, the degree of alkalization of the soil is reduced, the pH value of the soil is reduced, meanwhile, the porosity of the soil can be increased, and the water retention and permeability of the soil is enhanced; the wood vinegar is acidic, contains various organic substances such as acid, phenol, aldehyde and the like, has the functions of adjusting the pH degree of soil, reducing the salinity and the alkalization degree of the soil, effectively improving the soil of saline-alkali soil, killing pests such as root nodule nematodes and the like, and inhibiting the propagation of microorganisms which hinder the growth of plants. By using the saline-alkali soil conditioner, the salinity in the saline-alkali soil can be effectively reduced, the soil alkalinity can be reduced, the physicochemical property of the saline-alkali soil can be improved, and the saline-alkali soil conditioner is convenient and effective to use.
The improvement method comprises the steps of firstly, irrigating and washing salt in saline-alkali soil, irrigating and turning over the saline-alkali soil to enable water to permeate deep soil of the saline-alkali soil, dissolving salt in the soil, and preliminarily washing off the salt in the soil; then the saline-alkali soil conditioner is spread on the saline-alkali soil by two times, and plowing is carried out after each spreading, so that the saline-alkali soil conditioner and the saline-alkali soil are fully mixed, and the effect of the conditioner is fully exerted; and finally, cultivating the soil to ensure that the saline-alkali soil conditioner fully reacts with substances such as salt in the soil, so that the salinity and alkalinity of the soil are reduced, the pH of the soil is adjusted, the soil is provided with nutrients, the physical and chemical properties of the soil are improved, and the improvement effect of the saline-alkali soil is further improved.
The embodiments described above are some, but not all embodiments of the invention. The detailed description of the embodiments of the present invention is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Claims (10)

1. The saline-alkali soil conditioner is characterized by comprising the following raw materials in parts by weight: 1200 parts of mineral filler, 40-60 parts of polymaleic anhydride, 25-40 parts of humic acid and 25-40 parts of pyroligneous.
2. The saline-alkali soil amendment according to claim 1, characterized by comprising the following raw materials by weight: 900 parts of mineral filler, 45 parts of polymaleic anhydride, 30 parts of humic acid and 30 parts of pyroligneous.
3. The saline-alkali soil amendment according to claim 1, characterized by comprising the following raw materials by weight: 1100 parts of mineral filler, 55 parts of polymaleic anhydride, 35 parts of humic acid and 30 parts of pyroligneous.
4. A saline-alkali soil amendment according to any one of claims 1 to 3, wherein the mineral filler is phosphogypsum or desulfurized gypsum.
5. The saline-alkali soil amendment according to claim 4, characterized by further comprising 200-360 parts by weight of fly ash.
6. A saline-alkali soil amendment according to claim 5, characterized in that it comprises the following raw materials by weight: 1100 parts of mineral filler, 55 parts of polymaleic anhydride, 35 parts of humic acid, 30 parts of pyroligneous and 330 parts of fly ash.
7. The saline-alkali soil amendment according to claim 5, wherein the particle size of the fly ash is 50-80 μm.
8. A method for improving saline-alkali soil, which comprises the steps of: irrigating and turning over the saline-alkali soil, then spreading the saline-alkali soil conditioner on the saline-alkali soil twice, turning over after each spreading, and then culturing and maintaining.
9. The method for improving saline-alkali soil according to claim 8, wherein each plowing depth is 20 to 30 cm.
10. The method for improving saline-alkali soil according to claim 8, wherein the culture is maintained for 3 to 10 days.
CN202110715243.3A 2021-06-26 2021-06-26 Saline-alkali soil conditioner and improvement method Pending CN113293008A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110715243.3A CN113293008A (en) 2021-06-26 2021-06-26 Saline-alkali soil conditioner and improvement method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110715243.3A CN113293008A (en) 2021-06-26 2021-06-26 Saline-alkali soil conditioner and improvement method

Publications (1)

Publication Number Publication Date
CN113293008A true CN113293008A (en) 2021-08-24

Family

ID=77329633

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110715243.3A Pending CN113293008A (en) 2021-06-26 2021-06-26 Saline-alkali soil conditioner and improvement method

Country Status (1)

Country Link
CN (1) CN113293008A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107892626A (en) * 2017-10-25 2018-04-10 山东胜景旅游发展有限公司 A kind of beach saline-alkali ground soil fertilizer special for organic and preparation method thereof
CN111073659A (en) * 2019-11-28 2020-04-28 宁夏农林科学院农业资源与环境研究所（宁夏土壤与植物营养重点实验室） Carbon-based soil conditioner for heavy saline-alkali soil

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107892626A (en) * 2017-10-25 2018-04-10 山东胜景旅游发展有限公司 A kind of beach saline-alkali ground soil fertilizer special for organic and preparation method thereof
CN111073659A (en) * 2019-11-28 2020-04-28 宁夏农林科学院农业资源与环境研究所（宁夏土壤与植物营养重点实验室） Carbon-based soil conditioner for heavy saline-alkali soil

Similar Documents

Publication Publication Date Title
Khaled et al. Effect of different levels of humic acids on the nutrient content, plant growth, and soil properties under conditions of salinity.
CN105111021B (en) It has both and improves the soil with the beach saline land paddy rice-dedicated fertilizer of fertilizer efficiency function and its preparation method and application
CN109705872B (en) Soda alkalized soil conditioner and preparation method thereof
CN104276903A (en) Chemical improvement conditioner suitable for coastal beach and strongly saline-alkaline land and application method thereof
CN103131424A (en) Saline alkali soil conditioner
CN104327858A (en) Soil heavy metal compound stabilizer and method using soil heavy metal compound stabilizer for passivation of soil heavy metals
CN106278705A (en) A kind of alkaline land improving fertilizer special for organic and its preparation method and application
CN107201234A (en) A kind of inland soda alkaline land modifying agent and application
US5221312A (en) Water and soil treatment method
CN107087451B (en) method for improving severe soda saline-alkali soil
CN105567242A (en) Soil conditioner and application thereof
KR20020056373A (en) Non-fermented compost, organic manure and a preparation method thereof
CN113287385A (en) Method for improving soda saline-alkali soil by forming hydrotalcite-like compound in soil
RU2212391C2 (en) Method of composting organic and organomineral materials and wastes (options)
CN1238467C (en) Saline-alkaline land modifier
CN113293008A (en) Saline-alkali soil conditioner and improvement method
RU2551538C2 (en) Improved fertilisers with polymer auxiliary substances
KR101376192B1 (en) Bed soil for horticultural purpose using the illite and method of manufacturing the same
CN107088576B (en) Method for improving acid soil
RU2788695C1 (en) Organomineral fertilizer
Norton et al. FGD gypsum influences on soil surface sealing, crusting, infiltration and runoff
CN115261029B (en) Alkaline soil conditioner, preparation method thereof and alkaline soil conditioning method
Shaban et al. Effect of different calcium sources on some soil chemical properties and garlic (Allium sativum L.) productivity under saline soil conditions
Kalinitchenko et al. Phosphogypsum: P fertilizer by-Product and soil amendment.
Youssef et al. Evaluation of some synthetic soil conditioners and nitrogen rates on nitrogen use efficiency by maize-wheat crops system in calcareous soil

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
RJ01 Rejection of invention patent application after publication

Application publication date: 20210824

RJ01 Rejection of invention patent application after publication