CN107853093B - Biological modifier for beach saline-alkali soil and preparation method and application thereof - Google Patents
Biological modifier for beach saline-alkali soil and preparation method and application thereof Download PDFInfo
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- CN107853093B CN107853093B CN201711225382.8A CN201711225382A CN107853093B CN 107853093 B CN107853093 B CN 107853093B CN 201711225382 A CN201711225382 A CN 201711225382A CN 107853093 B CN107853093 B CN 107853093B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
- A01C21/005—Following a specific plan, e.g. pattern
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D9/00—Other inorganic fertilisers
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/133—Renewable energy sources, e.g. sunlight
Abstract
The invention discloses a biological modifier for beach saline-alkali soil, which comprises the following components in parts by weight: 1-2 parts of silt powder, 0.25-2 parts of charcoal powder, 0.1-1 part of rice hull powder, 4-15 parts of water and 0.5-1 part of high-salt-tolerance microbial liquid. The invention also discloses a preparation method and application of the biological modifier. The invention has the advantages of simple preparation process and lower cost, and the liquid soil conditioner can rapidly improve the soil fertility and effectively improve the current situation that the fertility of the beach saline-alkali soil is extremely low. The method can effectively improve the current situations of high sand content and poor soil aggregate structure of the beach saline-alkali soil, increase the humus of the soil, facilitate the formation of the aggregate structure, and neutralize the alkalinity of the soil by the organic acid generated after decomposition. The biological improvement method of the invention does not relate to chemical fertilizers or other chemical modifiers, thus not polluting the soil, reducing the salt return condition of the plough layer and being beneficial to the growth of economic crops.
Description
Technical Field
The invention relates to the technical field of fertilizer preparation, in particular to a biological improver for beach saline-alkali soil, a preparation method and application thereof, and particularly relates to a biological improving method for beach saline-alkali soil.
Background
Soil salinization is one of the main types of soil degradation. Salinized soil is a general term for a series of soils affected by salt and alkali components in soil bodies, including various salinized soils and alkaline earths and other soils salinized and alkalized to different degrees. Organization according to United nations textbook (UN)ESCO) and the Food and Agriculture Organization (FAO) are not completely counted, and the total area of the saline soil in the world is about 1.0 multiplied by 109hm27.26% of the land area of the occupied ball. The salinized soil area of China is wide, and is about 9.913 multiplied by 107hm2Including residual saline soil of about 4.487X 107hm2Modern salinized soil is about 3.693X 107hm2The potential saline soil is about 1.733 multiplied by 106hm2。
The coastal beach refers to the shallow of the muddy coastal zone between the high tide level and the low tide level. According to the comprehensive survey data of coastal zones and shoal resources in China, the shoreline in China is as long as 1.83 multiplied by 104Km, coastal beach resources are rich, mainly concentrated in some estuaries of plain coast of great river delta and coast of south China, and the total beach is 2.17 multiplied by 104km2. And research shows that at present, the mudflat still takes 2 to 3 multiplied by 104km2The speed of the method is increased, and the method is an important reserve land resource in China. The coastal beach reclamation development history is long, with the influence of factors such as urban construction, industrial structure adjustment, population increase and the like in China, the cultivated land area is gradually reduced, the lance shield of people is more prominent, and the reasonable development and utilization of beach resources play an important role in expanding the agricultural cultivated land area, promoting the development of forests, grazing, fisheries, salt industry and the like and promoting the development of the long triangle economy. Most of coastal saline soil areas are formed by sea withdrawal, and the salt replenishing mode in the salt accumulation process mainly comprises seawater immersion and river-tracing backward flow. Coastal saline soil has a series of characteristics different from inland saline soil: not only the surface layer is heavy in salt accumulation and the salt content of the subsoil is also high; the salinity composition is basically consistent with that of seawater, and chloride has absolute advantages; the distribution of the coastal saline soil is parallel to the coastal zone and is in a strip shape, and the salinity and the mineralization degree of underground water gradually decrease from sea to land. Because coastal saline soil, particularly newly reclaimed beaches have high salt content, salt surface accumulation and soil nutrient deficiency, the productivity of the land and the normal growth of crops are seriously influenced, and in addition, the influence of activities such as artificial blind reclamation, extensive agricultural cultivation modes, reclamation of land from sea and the like causes further damage to an ecological system, the salinization condition of the soil is more serious, and the sustainable development of the long-delta coastal beaches is unfavorable.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to solve the technical problem of providing a biological modifier for beach saline-alkali soil.
The invention also aims to solve the technical problem of providing a preparation method of the biological modifier for the beach saline-alkali soil.
The invention also aims to solve the technical problem of providing a biological improvement method for beach saline-alkali soil.
The technical scheme is as follows: in order to solve the problems in the prior art, the invention adopts the following technical scheme: the biological modifier for the beach saline-alkali soil comprises the following components in parts by weight: 1-2 parts of silt powder, 0.25-2 parts of charcoal powder, 0.1-1 part of rice hull powder, 4-15 parts of water and 0.5-1 part of high-salt-tolerance microbial liquid.
Wherein, the biological modifier also comprises 0.7-1.5 parts of aquaculture wastewater.
Wherein, the silt powder is prepared from silt after dredging rivers and lakes by dewatering, air drying, crushing and sieving by a sieve of 1 mm.
Wherein the charcoal powder is obtained by carbonizing straws of wheat, rice and the like with pH of 7.0-9.0, pulverizing, and sieving with a 1mm sieve.
The breeding wastewater is livestock and poultry excrement sewage of a breeding farm, the livestock and poultry excrement sewage is filtered and diluted to a certain multiple for later use, and the content of NH 3-N in the diluted sewage is 60-500 mg/L.
Wherein the high-salt-tolerance microbial liquid is prepared by adding EM engineering bacteria into molasses, water, Ca (OH)2Solution, Mg (OH)2And (4) obtaining a bacterial liquid after fermentation in the solution.
Preferably, the high-salt-tolerance microbial liquid is prepared by adding 0.5-2 parts of EM engineering bacteria (the EM engineering bacteria are purchased from environment-friendly biotechnology limited of harmonious amily, Nanjing) to 2-5 parts of molasses, 70-85 parts of water, 3-5 parts of 1g/LCa (OH)2Solution, 5-10 parts of 1g/LMg (OH)2Fermenting the solution at 25 deg.C for about 30 hr to obtain fermentation liquid.
The invention also comprises a preparation method of the biological modifier for the beach saline-alkali soil, which comprises the following steps:
1) weighing 1-2 parts of silt powder, 0.25-2 parts of charcoal powder, 0.1-1 part of rice hull powder, 0.7-1.5 parts of aquaculture wastewater, 4-15 parts of water and 0.5-1 part of high-salt-tolerance microbial liquid;
2) and (3) performing anaerobic fermentation on the high-salt-tolerance microbial strain liquid, the culture wastewater and the water at the temperature of 25-35 ℃ for 7-10 days, adding silt powder, rice hull powder and charcoal powder, performing anaerobic fermentation for 7-10 days at the rotation speed of 180-plus-material 230r/min, and performing aerobic fermentation for 5-7 days to obtain the biological modifier.
The invention also comprises the application of the biological modifier for the beach saline-alkali soil in the aspect of biological modification of the beach saline-alkali soil.
The invention also comprises a biological improvement method for the beach saline-alkali soil, which comprises the following steps:
1) planting salt-tolerant plants on the beach saline-alkali soil in winter of 1 year after reclamation;
2) planting a first crop of economic crops in the spring of the 2 nd year after reclamation, harvesting salt-tolerant plants at intervals of 80-200cm, airing the harvested salt-tolerant plants for later use, marking the non-harvested areas of the salt-tolerant plants as A, marking the areas to be improved with the economic crops as planting areas B after harvesting, spraying the biological modifier on the planting areas B in a clear weather at 20-30 ℃, ploughing the biological modifier into the planting areas B, after 15-30 days, poking the soil with hands, transplanting the economic crops after white hyphae grow out, covering the harvested salt-tolerant plants on the root layers of the economic crops to ensure that the planting areas B have no bare soil surface, after the economic crops are harvested, fully airing the salt-tolerant plants covered by the planting areas B, continuously spraying the biological modifier, and ploughing the salt-tolerant plants into the soil for later use; in order to prevent semi-dry plants from being incapable of fully decomposing and fermenting after being directly ploughed into soil, the liquid modifying agent is sprayed after being dried, so that the fully decomposed and fermented plants are facilitated to increase the organic matter content in the soil, and the soil fertility and the structural performance are fully improved for planting and use in the next year.
3) And (3) harvesting all the salt-tolerant crops in the area A in autumn after the second year of reclamation, airing for later use, preparing to plant a second crop of economic crops, spraying a biological modifier in the area A in sunny weather at 20-30 ℃, ploughing the biological modifier into soil, uniformly mixing for later use, poking the soil by hand after 15-30 days, transplanting the economic crops after white hyphae grow out, and covering the harvested salt-tolerant plants on the root layers of the economic crops to ensure that the planting area has no bare soil surface.
Wherein the salt-tolerant plant is one or more of Sudan grass and alfalfa.
Wherein the commercial crop is tomato or other commercial crops.
Has the advantages that: compared with the prior art, the invention has the advantages that:
(1) the silt contains certain nutrient components, and the liquid soil conditioner prepared by co-fermentation of the silt and agricultural organic wastes has higher nutrient, can quickly improve the soil fertility, and effectively improves the current situation that the fertility of the beach saline-alkali soil is extremely low.
(2) The silt particles are smaller, the clay particle content is high, and after the silt particles are applied to soil, the current situations that the sand particle content of the beach saline-alkali soil is high and the soil aggregate structure is poor can be effectively improved.
(3) The rice hull has high carbon content, can increase humus of soil, is beneficial to forming granular structure, and organic acid generated after decomposition can neutralize the alkalinity of the soil.
(4) The beach saline-alkali soil is newly reclaimed land in coastal areas, does not contain any chemical component, and is natural soil suitable for organic agricultural planting. The biological improvement method of the invention does not relate to chemical fertilizers or other chemical modifiers, thereby causing no pollution to soil.
(5) The planted salt-tolerant crops are returned to the field and then cover the periphery of the economic crop root system, so that the salt return condition of the plough layer can be reduced, and the economic crop growth is facilitated.
(6) The open ditch drainage can quickly reduce the soil salinity, but the saline-alkali soil cannot be changed into a culturable farmland; salt-tolerant crops are planted, so that a large amount of salt in soil can be absorbed, and the salt-tolerant crops can be returned to the field, so that the organic matter content of the soil can be improved, and the salt return of the soil can be reduced; the microbial improver and the application method thereof have obvious beneficial effects on the improvement of soil fertility, soil structure and microflora. The invention combines the three components, and can efficiently improve the newly reclaimed beach saline-alkali soil to carry out agricultural production.
Detailed Description
The present invention will be described in further detail with reference to specific examples.
The invention will be better understood from the following examples. However, those skilled in the art will readily appreciate that the description of the embodiments is only for illustrating the present invention and should not be taken as limiting the invention as detailed in the claims. The following examples are intended to illustrate the invention in further detail, but are not intended to limit the invention.
Sources of reagents of the invention: the silt powder used in the invention is prepared by taking silt from rivers and lakes after desilting, dehydrating, air-drying, crushing and sieving by a sieve of 1mm in a laboratory; the charcoal powder is purchased from Jiangsu Huafeng agricultural bioengineering company Limited, and is obtained by sieving with a 1mm sieve after being crushed; the breeding wastewater is livestock and poultry excrement sewage of a breeding farm, the livestock and poultry excrement sewage is filtered and diluted to a certain multiple for later use, and NH 3-N in the diluted sewage is 60-500 mg/L. The highly salt-tolerant microbial liquid is prepared by adding 0.5-2 parts of EM engineering bacteria (purchased from Nanjing Eigengle environmental protection biotechnology limited) into 2-5 parts of molasses, 70-85 parts of water, 3-5 parts of 1g/LCa (OH) in parts by weight in a Nanjing vegetable and flower scientific research institute laboratory2Solution, 5-10 parts of 1g/LMg (OH)2Fermenting the solution at 25 deg.C for about 30 hr to obtain fermentation liquid. The present invention will be described in detail below with reference to specific examples.
Example 1 preparation of biological improver for beach saline-alkali land
1. Preparing high-salt-tolerance microbial solution: adding 0.5 part of EM engineering bacteria into 2 parts of molasses, 70 parts of water and 3 parts of 1g/LCa (OH) according to parts by weight2Solution, 5 parts of 1g/LMg (OH)2Fermenting in the solution at 25 deg.C for about 30 hr to obtain fermentation liquid.
2. Preparing a biological modifier for the beach saline-alkali soil: weighing 1kg of silt powder, 0.5kg of charcoal powder, 0.1kg of rice hull powder, 0.5kg of high-salt-tolerance microbial liquid, 4kg of water and 2.1kg of aquaculture wastewater, carrying out anaerobic fermentation on the aquaculture wastewater, the high-salt-tolerance microbial liquid and the water at 35 ℃ for 7 days, adding the silt powder, the rice hull powder and the charcoal powder, carrying out anaerobic fermentation for 10 days at the rotating speed of 180r/min, and then carrying out aerobic fermentation for 7 days to obtain the biological modifier.
Example 2 preparation of biological improver for beach saline-alkali soil
1. Preparing high-salt-tolerance microbial solution: adding 1 part of EM engineering bacteria into 3 parts of molasses, 75 parts of water and 4 parts of 1g/LCa (OH) according to parts by weight2Solution, 7 parts of 1g/LMg (OH)2Fermenting the solution at 25 deg.C for about 30 hr to obtain fermentation liquid.
2. Preparing a biological modifier for the beach saline-alkali soil: weighing 1.5kg of silt powder, 1kg of charcoal powder, 0.6kg of rice hull powder, 0.8kg of high-salt-tolerance microbial liquid, 8kg of water and 3kg of aquaculture wastewater, carrying out anaerobic fermentation on the aquaculture wastewater, the high-salt-tolerance microbial liquid and the water at 25 ℃ for 10 days, adding the silt powder, the rice hull powder and the charcoal powder, carrying out anaerobic fermentation for 7 days at the rotating speed of 230r/min, and then carrying out aerobic fermentation for 5 days to obtain the biological modifier.
Example 3 preparation of biological improver for beach saline-alkali soil
1. Preparing high-salt-tolerance microbial solution: 2 portions of EM engineering bacteria are added into 5 portions of molasses, 85 portions of water and 5 portions of 1g/LCa (OH)2Solution, 10 parts of 1g/LMg (OH)2Fermenting the solution at 25 deg.C for about 30 hr to obtain fermentation liquid.
2. Preparing a biological modifier for the beach saline-alkali soil: weighing 2kg of silt powder, 2kg of charcoal powder, 1kg of rice hull powder, 1kg of high-salt-resistance microbial liquid, 15kg of water and 4.5kg of aquaculture wastewater, carrying out anaerobic fermentation on the aquaculture wastewater, the high-salt-resistance microbial liquid and the water at 30 ℃ for 8 days, adding the silt powder, the rice hull powder and the charcoal powder, carrying out anaerobic fermentation for 8 days at the rotating speed of 260r/min, and then carrying out aerobic fermentation for 6 days to obtain the biological modifier.
Example 4 preparation of biological improver for beach saline-alkali land
1. Preparing high-salt-tolerance microbial solution: adding 1.5 parts of EM engineering bacteria into 4 parts of molasses, 80 parts of water and 4 parts of 1g/LCa (OH) according to parts by weight2Solution, 8 parts of 1g/LMg (OH)2The solution is prepared by mixing a solvent and a solvent,fermenting at 25 deg.C for about 30h to obtain fermentation liquid.
2. Preparing a biological modifier for the beach saline-alkali soil: weighing 1kg of silt powder, 1kg of charcoal powder, 0.5kg of rice hull powder, 0.6kg of high-salt-tolerance microbial liquid, 10kg of water and 0.7kg of aquaculture wastewater, performing anaerobic fermentation on the aquaculture wastewater, the high-salt-tolerance microbial liquid and the water at 30 ℃ for 8 days, adding the silt powder, the rice hull powder and the charcoal powder, performing anaerobic fermentation for 8 days at the rotating speed of 260r/min, and performing aerobic fermentation for 6 days to obtain the biological modifier.
Example 5 preparation of biological improver for beach saline-alkali soil
1. Preparing high-salt-tolerance microbial solution: adding 1.5 parts of EM engineering bacteria into 4 parts of molasses, 80 parts of water, 4 parts of 1g/LCa (OH)2 solution and 8 parts of 1g/LMg (OH)2 solution according to parts by weight, and fermenting at 25 ℃ for about 30 hours to obtain fermentation liquor.
2. Preparing a biological modifier for the beach saline-alkali soil: weighing 2kg of silt powder, 0.25kg of charcoal powder, 1kg of rice hull powder, 1kg of high-salt-tolerance microbial liquid and 15kg of water, carrying out anaerobic fermentation on the high-salt-tolerance microbial liquid and the water at 30 ℃ for 8 days, adding the silt powder, the rice hull powder and the charcoal powder, carrying out anaerobic fermentation for 8 days at the rotating speed of 260r/min, and then carrying out aerobic fermentation for 6 days to obtain the biological modifier.
TABLE 1 composition of examples 1-4
Examples 1 to 5
And (3) selecting the liquid biological modifier obtained in the embodiment 1-5 to perform a tomato planting test on the coastal saline-alkali soil of Jiangsu.
1) Planting salt-tolerant plant alfalfa in the beach saline-alkali soil in winter of 1 year after reclamation;
2) planting a first crop of economic crops in the spring of the 2 nd year after reclamation, harvesting salt-tolerant plants at an interval of 80-200cm, airing the harvested salt-tolerant plants for later use, marking the non-harvested area of the salt-tolerant plants as A, marking the area to be improved with the economic crops as a planting area B after harvesting, spraying the biological modifier on the planting area B in a clear weather at 20-30 ℃, ploughing the biological modifier into the planting area B, after about 15-30 days, poking the soil with hands, transplanting the economic crops after white hyphae grow out, covering the harvested salt-tolerant plants on the root layer of the economic crops to ensure that the planting area B has no bare soil surface, after the economic crops are harvested, fully airing the salt-tolerant plants covered by the planting area B, continuously spraying the biological modifier, ploughing the salt-tolerant plants into the soil, and uniformly mixing the salt-tolerant plants for later use;
3) and (3) completely harvesting salt-tolerant crops in the area A in autumn of 2 years after the reclamation, airing for later use, preparing to plant a second crop of economic crops, spraying a biological modifier in the area A in sunny weather at 20-30 ℃, ploughing the biological modifier into soil, uniformly mixing for later use, poking the soil by hand after about 15-30 days, transplanting the economic crops after white hyphae grow out, and covering the harvested salt-tolerant plants on the root layers of the economic crops to ensure that the planting area has no bare soil surface.
In the experimental example, six groups of tests are carried out on the planting test, including a comparative example and five groups of experimental examples, wherein the comparative example is to directly plant tomatoes on the newly-cultivated intertidal saline-alkali soil of east platform of Jiangsu, and the rest five groups of experimental examples are to respectively adopt the biological modifier of examples 1-5 to carry out improved planting on the newly-cultivated intertidal saline-alkali soil of east platform of Jiangsu; wherein the comparative example is the soil of the newly reclaimed intertidal saline-alkali land of east platform of Jiangsu, the total salt content is 15.60g/kg, and the pH value is 8.2. In experimental examples 1 to 5, the liquid biological modifier in example 1 to 5 was selected for soil improvement on the basis of the soil of the newly reclaimed east tai, Jiangsu province beach saline-alkali land, tomatoes were planted according to the method, wherein the step of applying the biological modifier specifically comprises: in clear weather at 20-30 ℃, the liquid biological modifier is respectively added according to the proportion of 1: 60. 1: 80. 1: 100. 1: 60. 1: mixing the soil with the plough layer of 0-20cm in proportion of 80, digging the soil by hand for about 15-30 days, making ridges at intervals of 80, 100, 120 and 180cm when white hypha grows out, cultivating tomatoes on the ridges, and covering the furrows between the ridges with weeds and crop straws of 30-40cm in thickness.
The detailed soil types before and after the use of the biological improver and the test results are shown in the following table 2:
TABLE 2
The result shows that the biological modifier can rapidly improve the soil fertility, effectively improve the current situations of high sand content and poor soil aggregate structure of beach saline-alkali soil, increase the humus of the soil, facilitate the formation of the aggregate structure, simultaneously reduce the salt return condition of a plough layer, promote the growth of crops, reduce the total salt content of the soil by 38.5 percent and improve the tomato yield by over 45.9 percent.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (6)
1. The biological modifier for the beach saline-alkali soil is characterized by comprising the following components in parts by weight: 1-2 parts of silt powder, 0.25-2 parts of charcoal powder, 0.1-1 part of rice hull powder, 4-15 parts of water, 0.5-1 part of high-salt-tolerance microbial liquid and 0.7-1.5 parts of aquaculture wastewater, wherein the silt powder is obtained from silt obtained after dredging rivers and lakes, and is prepared by dewatering, air drying, crushing and sieving by a 1mm sieve, the aquaculture wastewater is livestock and poultry excrement wastewater in a culture farm, the livestock and poultry excrement wastewater is diluted to a certain multiple for later use after being filtered, and NH in the diluted wastewater3 —The content of N is 60-500 mg/L, and the high-salt-tolerance microbial liquid is prepared by adding EM engineering bacteria into molasses, water and Ca (OH)2Solution, Mg (OH)2And (4) obtaining a bacterial liquid after fermentation in the solution.
2. The preparation method of the biological improver for the beach saline-alkali soil of claim 1 is characterized by comprising the following steps:
1) weighing 1-2 parts of silt powder, 0.25-1 part of charcoal powder, 0.1-1 part of rice hull powder, 0.7-1.5 parts of aquaculture wastewater, 4-15 parts of water and 0.5-1 part of high-salt-tolerance microbial liquid;
2) and (3) carrying out anaerobic fermentation on the high-salt-tolerance microbial liquid, the culture wastewater and the water at the temperature of 25-35 ℃ for 7-10 days, adding silt powder, rice hull powder and charcoal powder, carrying out anaerobic fermentation for 7-10 days at the rotation speed of 180-plus-material 230r/min, and then carrying out aerobic fermentation for 5-7 days to obtain the biological modifier.
3. The application of the biological modifier for the beach saline-alkali soil of claim 1 in the biological modification of the beach saline-alkali soil.
4. A biological improvement method for beach saline-alkali soil is characterized by comprising the following steps:
1) planting salt-tolerant plants on the beach saline-alkali soil in winter of 1 year after reclamation;
2) planting a first crop of economic crops in the spring of the 2 nd year after reclamation, harvesting salt-tolerant plants at intervals of 80-200cm, airing the harvested salt-tolerant plants for later use, marking the non-harvested areas of the salt-tolerant plants as A, marking the areas to be improved with the economic crops as planting areas B after harvesting, spraying the biological modifier of claim 1 on the planting areas B in sunny weather at 20-30 ℃, turning the biological modifier into the planting areas B, after 15-30 days, poking the soil with hands, transplanting the economic crops after white hyphae grow out, covering the harvested salt-tolerant plants on the root layers of the economic crops to ensure that the planting areas B have no bare soil surface, after the economic crops are harvested, fully airing the salt-tolerant plants covered by the planting areas B, continuously spraying the biological modifier, ploughing and mixing uniformly for later use;
3) and (3) harvesting all the salt-tolerant crops in the area A in autumn after the second year of reclamation, airing for later use, preparing to plant a second crop of economic crops, spraying a biological modifier in the area A in sunny weather at 20-30 ℃, ploughing the biological modifier into soil, uniformly mixing for later use, poking the soil by hand after 15-30 days, transplanting the economic crops after white hyphae grow out, and covering the harvested salt-tolerant plants on the root layers of the economic crops to ensure that the planting area has no bare soil surface.
5. The method for biologically improving beach saline-alkali soil according to claim 4, wherein the salt-tolerant plant is one or more of Sudan grass and alfalfa.
6. The method for biologically improving beach saline-alkali soil according to claim 4, wherein the cash crop is tomato or other cash crops.
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| PCT/CN2017/115883 WO2019104755A1 (en) | 2017-11-29 | 2017-12-13 | Biological soil amendment for coastal saline-alkali soil, and preparation method therefor and application thereof |
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| CN109821866B (en) * | 2019-01-16 | 2021-02-19 | 安徽工程大学 | Saline-alkali soil restoration structure and restoration method based on river sediment resource utilization |
| CN110615713A (en) * | 2019-09-29 | 2019-12-27 | 河海大学 | Carbon-based microbial organic fertilizer and preparation method thereof |
| CN111903467A (en) * | 2020-07-22 | 2020-11-10 | 中交疏浚技术装备国家工程研究中心有限公司 | Process for improving marine silt for planting soil |
| CN112723959A (en) * | 2021-03-12 | 2021-04-30 | 南京朴厚生态科技有限公司 | Coastal beach saline-alkali soil conditioner and preparation process thereof |
| CN113412697B (en) * | 2021-07-28 | 2023-03-14 | 青岛万慧源环保科技有限公司 | Improvement method of saline-alkali soil |
| CN114557161B (en) * | 2022-04-14 | 2022-11-15 | 自然资源部国土整治中心 | Saline and alkaline land transformation device |
| CN114711111A (en) * | 2022-04-18 | 2022-07-08 | 四平市圣星生物科技有限公司 | Saline-alkali soil rice cultivation method |
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| CN102531801A (en) * | 2012-01-05 | 2012-07-04 | 上海创博生态工程有限公司 | Acidic microbial organic fertilizer and preparation method thereof |
| CN103275731B (en) * | 2013-06-17 | 2015-03-25 | 新疆农业科学院土壤肥料与农业节水研究所 | Saline-alkali soil modifier and preparation method and application thereof |
| CN104919931A (en) * | 2015-06-15 | 2015-09-23 | 刘长生 | Saline land improvement method |
| CN105052290A (en) * | 2015-07-13 | 2015-11-18 | 河海大学 | Desalination method by using sludge to improve topsoil of saline and alkaline land |
| CN105123008B (en) * | 2015-08-07 | 2017-04-12 | 中国科学院东北地理与农业生态研究所 | Method assembling straw biochar with microbe bacteria fertilizer so as to improve saline land |
| CN105367335B (en) * | 2015-11-19 | 2019-04-16 | 中国科学院南京土壤研究所 | Charcoal base beach saline land improves conditioner and its preparation method and application |
| CN105418316A (en) * | 2015-12-14 | 2016-03-23 | 王桂君 | Biochar fertilizer modifying agent suitable for saline-alkali soil and preparing method and application method thereof |
| CN106085458A (en) * | 2016-07-15 | 2016-11-09 | 山东胜伟园林科技有限公司 | A kind of salt-soda soil shrub plantation modifying agent formula and modification method thereof |
| CN106242915A (en) * | 2016-08-29 | 2016-12-21 | 山东胜伟园林科技有限公司 | A kind of organic fertilizer utilizing bagasse fermentation preparation and the method for improvement Saline-alkali Land In Hetao Irrigation Region thereof |
| CN107311787A (en) * | 2017-07-31 | 2017-11-03 | 钟春明 | Salt affected soil fertilizer special for organic |
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2017
- 2017-11-29 CN CN201711225382.8A patent/CN107853093B/en active Active
- 2017-12-13 WO PCT/CN2017/115883 patent/WO2019104755A1/en active Application Filing
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| WO2019104755A1 (en) | 2019-06-06 |
| CN107853093A (en) | 2018-03-30 |
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