Method for controlling sand by using organic mineral fertilizer

Abstract

The invention discloses a method for controlling desertification by using an organic mineral fertilizer. The method comprises the following steps: S1, leveling land; s2, deeply plowing the sand land; s3, irrigating with large water; s4, applying fertilizer according to the materials; s5, field management. Through deep ploughing, irrigation and application of a special modifier, the sand structure is effectively improved, ventilation and water permeability are enhanced, the pH value is adjusted, medium trace elements are supplemented, an excellent sand environment is provided for plant growth, a sand foundation is laid for early-stage application of the modifier according to crop requirements, and the modifier is natural, organic and environment-friendly in raw material and has a long-term sand improvement effect; the growth and development of plants are promoted, the stress resistance of the plants is enhanced, and the sustainability of desertification land treatment is realized. A proper amount of trace element fertilizer is added in the later period to improve the fertilizer utilization rate and meet plant growth requirements. The sand land and plant growth conditions are regularly observed and recorded, and timely manual intervention is performed according to data results, so that the sand land improvement effect and normal growth of crops are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of sand prevention and control, and in particular to a method for controlling sand by utilizing organic mineral fertilizers. Background Art

[0002] Desertification is one of the major environmental problems facing the world, especially in arid and semi-arid areas, where it leads to a decline in land productivity, ecosystem degradation and loss of biodiversity. Desertification not only threatens agricultural production, but also has a serious impact on the human living environment. According to statistics, the world loses millions of hectares of land due to desertification every year, which poses a huge challenge to food security and ecological balance.

[0003] Traditional sand control methods mainly include physical, chemical and biological means:

[0004] Physical methods: such as setting up sand barriers and afforestation, although they can effectively prevent wind and water erosion, they require a lot of manpower and material resources, and the control effect is limited, and it is difficult to fundamentally improve the quality of sand.

[0005] Chemical methods: such as using chemical improvers to adjust the pH value of sand, but these chemicals may cause secondary pollution to the environment, and are costly and difficult to promote and apply on a large scale.

[0006] Biological methods: such as planting drought-resistant plants and introducing nitrogen-fixing plants, although they can improve the structure of sand, they are slow to take effect and have high requirements for the initial conditions of the sand.

[0007] Therefore, a method for controlling sand using organic mineral fertilizer is proposed to solve the current shortcomings. Summary of the invention

[0008] The technical problem to be solved by the present invention is to overcome the defects of the above-mentioned technology and provide a method for sand control using organic mineral fertilizer.

[0009] In order to solve the above technical problems, the technical solution provided by the present invention is a method for sand control using organic mineral fertilizers, which comprises the following steps:

[0010] S1. Land leveling:

[0011] The desertified land to be treated is leveled by mechanical equipment to make it flat, ensuring that the error of the land surface flatness does not exceed ±5 cm, so as to facilitate the subsequent sand treatment and planting operations;

[0012] S2. Deep plowing in sandy land:

[0013] Use deep tillage machinery to deep plow the leveled land over a large area to a depth of 30 to 50 cm to break up the compacted layer of sand and improve the air permeability and water permeability of the sand;

[0014] S3, heavy water irrigation:

[0015] Use the irrigation system to fully irrigate the deep-turned sandy land to ensure that the sandy land is thoroughly irrigated. The irrigation water volume should be 75%-85% of the field water holding capacity per square meter of sandy land. Ensure that the water penetrates deep into the sandy land and thoroughly irrigates the sandy land to promote the dissolution and discharge of saline-alkali components in the sandy land.

[0016] S4. Fertilize according to the soil quality:

[0017] a) Early fertilization: Apply the amendment on the sandy land after deep plowing and irrigation, 2 to 4 tons per mu per year, for 1 to 3 consecutive years. Spread the amendment evenly on the surface of the sandy land, and then mix it into the surface layer of the sandy land 10 to 15 cm through shallow plowing or rotary tillage to adjust the pH value of the sandy land and improve the structure of the sandy land;

[0018] b) Later stage fertilization: according to the type of crops planted, add appropriate trace element fertilizers on the basis of early fertilization;

[0019] S5. Field management:

[0020] a) Observation and record: Regularly observe, record and analyze the pH value, nutrient content, sand structure and plant growth indicators of the sand;

[0021] b) Artificial intervention: Based on the observation results, artificial intervention is carried out in a timely manner to ensure the sand improvement effect and normal growth of crops.

[0022] As an improvement, the modifier is prepared from oil shale and humus shale in a weight ratio of 2:1.

[0023] As an improvement, in the early fertilization in S4, the pH value of the sand was adjusted to 6.5-7.5 through the use of improvers.

[0024] As an improvement, in S4, for sandy land with a high degree of salinization, after the 2-year period, the modifier can continue to be applied for 1 to 2 years, with 2 to 4 tons per mu of land per year.

[0025] As an improvement, in the later fertilization in S4, for plants with higher nitrogen and potassium requirements, 50 to 100 kg of mixed fertilizer of urea and potassium chloride is applied per mu of land per year, wherein urea and potassium chloride are prepared in a weight ratio of 2:1.

[0026] As an improvement, the observation record in S5 includes:

[0027] Sand testing: Conduct sand pH, organic matter content, and nutrient content testing at least once every quarter;

[0028] Plant growth observation: Observe plant growth conditions at least once a week, including plant height, leaf color, and growth rate indicators;

[0029] Data recording and analysis: Establish sand and plant growth data archives, record and analyze test data and observation results, so as to adjust fertilization plans and management measures in a timely manner.

[0030] The advantages of the present invention compared with the prior art are:

[0031] 1. The sand improvement effect is significant: through deep plowing and large-scale water irrigation, the compacted layer of the sand is effectively broken, the air permeability and water permeability of the sand are improved, and a good sand environment is provided for the growth of plant roots; at the same time, the improver used is prepared by oil shale and humus shale in a certain proportion, which can adjust the pH value of the sand, improve the structure of the sand, and provide the medium and trace elements required for plant growth. The addition of humus shale increases the organic matter content of the sand and improves the water and fertilizer retention capacity of the sand; oil shale provides rich medium and trace elements and enhances the density and stability of the sand;

[0032] 2. Targeted fertilization to improve fertilizer utilization: In the early stage of fertilization, the sandy land conditions are comprehensively improved by applying modifiers, laying a solid foundation for plant growth. In the later stage of fertilization, appropriate trace element fertilizers are added according to the types and needs of the crops planted, such as mixed fertilizers of urea and potassium chloride, to meet the growth needs of plants with higher nitrogen and potassium requirements. The method of fertilizing according to the fertility of the crops improves the utilization rate of fertilizers, reduces the loss of nutrients, and reduces the cost of fertilization;

[0033] 3. Scientific field management: Regular observation and recording of indicators of sand and plant growth, such as sand pH, nutrient content, sand structure, and plant growth, provides a scientific basis for timely adjustment of fertilization plans and management measures. Timely human intervention is carried out according to the observation results, such as spraying ferrous sulfate solution on the leaves to correct iron deficiency symptoms, and applying zinc sulfate to meet the plant's demand for zinc, to ensure the normal growth of crops and the continued effect of sand improvement;

[0034] 4. Eco-friendly and sustainable: The raw materials of the improver used are derived from natural organic matter, have good ecological compatibility and are environmentally friendly. Humus shale decomposes slowly in the sand, can continuously provide nutrients and improve the structure of the sand, and has a long-term sand improvement effect. By improving the structure of the sand and increasing the fertility of the sand, it promotes the growth and development of plants, enhances the disease resistance, drought resistance and cold resistance of plants, helps to establish a stable ecosystem, and improves the governance effect and sustainability of desertified land. DETAILED DESCRIPTION

[0035] The content of the present invention can be more easily understood by selecting the following detailed description of the preferred implementation method of the present invention and the embodiments included. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those of ordinary skill in the art to which the present invention belongs. When there is a conflict, the definition in this specification shall prevail.

[0036] As used herein, the term "prepared from" is synonymous with "comprising." As used herein, the terms "comprising," "including," "having," "containing," or any other variation thereof, are intended to cover a non-exclusive inclusion. For example, a composition, process, method, article, or apparatus that comprises the listed elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus.

[0037] The conjunction "consisting of excludes any unspecified element, step, or component. If used in a claim, this phrase renders the claim closed-ended so that it does not include materials other than those described, except for conventional impurities associated therewith. When the phrase "consisting of" appears in a clause of the body of a claim rather than immediately following the subject matter, it limits only the elements described in that clause; other elements are not excluded from the claim as a whole.

[0038] When amount, concentration or other value or parameter is expressed as range, preferred range or a series of upper preferred value and lower preferred value limit range, this should be understood as specifically disclosing all ranges formed by any pairing of any range upper limit or preferred value and any range lower limit or preferred value, regardless of whether the range is disclosed separately. For example, when disclosing range "1 to 5", described range should be interpreted as including range "1 to 4", "1 to 3", "1 to 2", "1 to 2 and 4 to 5", "1 to 3 and 5" etc. When numerical range is described in this article, unless otherwise stated, the range is intended to include its end value and all integers and fractions within the range.

[0039] Singular forms include plural references unless the context clearly indicates otherwise. "Optional" or "either" means that the subsequently described event or incident may or may not occur, and that the description includes instances where the event occurs and instances where it does not.

[0040] Approximate terms in the specification and claims are used to modify quantities, indicating that the present invention is not limited to the specific quantity, but also includes acceptable and modified parts close to the quantity without causing changes in the relevant basic functions. Accordingly, the use of "about", "approximately", etc. to modify a numerical value means that the present invention is not limited to the exact numerical value. In some examples, the approximate terms may correspond to the accuracy of the instrument for measuring the numerical value. In the specification and claims of this application, range limitations can be combined and / or interchanged, and if not otherwise stated, these ranges include all subranges contained therein.

[0041] In addition, the indefinite articles "a" and "an" before the elements or components of the present invention have no restrictions on the quantity requirements (i.e. the number of occurrences) of the elements or components. Therefore, "a" or "an" should be interpreted as including one or at least one, and the elements or components in the singular form also include the plural form, unless the number is obviously intended to be in the singular form.

[0042] Embodiment 1

[0043] A method for sand control using organic mineral fertilizers comprises the following steps:

[0044] S1. Land leveling:

[0045] The desertified land to be treated is leveled by mechanical equipment to make it flat, ensuring that the error of the land surface flatness does not exceed ±5 cm, so as to facilitate the subsequent sand treatment and planting operations;

[0046] S2. Deep plowing in sandy land:

[0047] Use deep tillage machinery to deep plow the leveled land over a large area to a depth of 30cm to break up the compacted layer of sand and improve the air permeability and water permeability of the sand;

[0048] At the same time, the sand after deep plowing should be loose and free of obvious large lumps of soil, ensuring that the sand structure is suitable for the growth of plant roots.

[0049] S3, heavy water irrigation:

[0050] Use the irrigation system to fully irrigate the deep-turned sandy land to ensure that the sandy land is thoroughly irrigated. The irrigation water volume should be 75% of the field water holding capacity per square meter of sandy land. Ensure that the water penetrates deep into the sandy land and thoroughly irrigates the sandy land to promote the dissolution and discharge of saline-alkali components in the sandy land.

[0051] S4. Fertilize according to the soil quality:

[0052] a) Early fertilization: Apply the improver on the sand after deep plowing and irrigation, 2 tons per mu of land per year, and apply it continuously for 1 year. In specific implementation, the improver is evenly spread on the surface of the sand, and then mixed into the surface layer of the sand by shallow plowing or rotary tillage. It is used to adjust the pH value of the sand and improve the structure of the sand. In this embodiment, the pH value of the sand is adjusted to 6.5 through the use of the improver.

[0053] Specifically, the improver is prepared from oil shale and humus shale in a weight ratio of 2:1, and achieves effective control of desertified land by adjusting the pH value of the sand, improving the structure of the sand, and providing the medium and trace elements required for plant growth.

[0054] Among them, humus shale can improve the structure of sand, promote the agglomeration of sand particles, increase the porosity and aeration of sand, thereby achieving the effect of improving the physical structure of sand, helping root growth, and improving the efficiency of plant absorption of water and nutrients.

[0055] At the same time, humus shale is rich in organic carbon and is an important carbon source for sand microorganisms. It can promote the reproduction and activity of sand microorganisms, and can adsorb and slowly release nutrients in the sand, reduce nutrient loss, and improve fertilizer utilization.

[0056] Moreover, humus shale has a buffering effect, which can regulate the pH value of the sand to keep it within a range suitable for plant growth. It also has a strong water absorption capacity, which can improve the water retention capacity of the sand, reduce water evaporation, and improve water utilization efficiency.

[0057] In actual implementation, humus comes from natural organic matter, has good ecological compatibility, is environmentally friendly, and decomposes slowly in sand, and can continuously provide nutrients and improve sand structure.

[0058] Oil shale is rich in trace elements such as iron, manganese, copper, zinc, boron, and molybdenum. These elements are involved in various physiological processes in plants, such as photosynthesis, enzyme activity, cell division, etc., and are essential for plant growth and development.

[0059] At the same time, oil shale has a certain acid-base buffering capacity and can work synergistically with humus shale to regulate the pH value of sandy land.

[0060] In addition, the particles of oil shale are small and can fill the pores in the sand, increase the density and stability of the sand, help prevent sand erosion, and improve the sand's resistance to wind and water erosion.

[0061] In this embodiment,

[0062] The synergistic effect of humus shale and oil shale can effectively regulate the pH value of the sand, keeping it within a range suitable for plant growth.

[0063] At the same time, humus shale can improve the physical structure of sand, increase the porosity and air permeability of sand, while oil shale can fill the pores of sand, increase the density and stability of sand. The combination of the two can significantly improve the physical properties of sand and provide a good sand environment for the growth of plant roots.

[0064] In addition, oil shale is rich in trace elements such as iron, manganese, copper, zinc, boron, and molybdenum, which are necessary for plant growth. The use of this modifier can effectively supplement the nutrients lacking in the sand, promote plant growth and development, and improve the plant's disease resistance, drought resistance, and cold resistance. Humus shale can increase the organic matter content of the sand and increase the sand's water and fertilizer retention capacity, while oil shale can provide a variety of trace elements. The combination of the two can significantly improve the fertility of the sand and provide sufficient nutrients for plant growth.

[0065] Furthermore, for sandy land with a high degree of salinization, after the expiration of the two-year period, the improver can continue to be applied for one year, with 2 tons applied per mu of land per year.

[0066] b) Later stage fertilization: according to the type of crops planted, add appropriate trace element fertilizers on the basis of early fertilization;

[0067] In this embodiment, for growing plants with high nitrogen and potassium requirements, 50 kg of mixed fertilizer of urea and potassium chloride is applied per mu of land per year, wherein urea and potassium chloride are prepared in a weight ratio of 2:1.

[0068] S5. Field management:

[0069] a) Observation and record: Regularly observe, record and analyze the pH value, nutrient content, sand structure and plant growth indicators of the sand;

[0070] Specifically, observation records include:

[0071] Sand testing: Conduct sand pH, organic matter content, and nutrient content testing at least once every quarter;

[0072] Plant growth observation: Observe plant growth conditions at least once a week, including plant height, leaf color, and growth rate indicators;

[0073] Data recording and analysis: Establish sand and plant growth data archives, record and analyze test data and observation results, so as to adjust fertilization plans and management measures in a timely manner.

[0074] b) Artificial intervention: Based on the observation results, artificial intervention is carried out in a timely manner to ensure the sand improvement effect and normal growth of crops.

[0075] In this embodiment, for iron-deficient plants, 0.1% ferrous sulfate solution is sprayed on the leaves once every 7 days for 3 consecutive times.

[0076] For zinc-deficient plants, apply 1 kg of zinc sulfate per acre of land in the early stages of plant growth.

[0077] Embodiment 2

[0078] A method for sand control using organic mineral fertilizers comprises the following steps:

[0079] S1. Land leveling:

[0080] The desertified land to be treated is leveled by mechanical equipment to make it flat, ensuring that the error of the land surface flatness does not exceed ±5 cm, so as to facilitate the subsequent sand treatment and planting operations;

[0081] S2. Deep plowing in sandy land:

[0082] Use deep tillage machinery to deep plow the leveled land over a large area to a depth of 40cm to break up the compacted layer of sand and improve the air permeability and water permeability of the sand;

[0083] At the same time, the sand after deep plowing should be loose and free of obvious large lumps of soil, ensuring that the sand structure is suitable for the growth of plant roots.

[0084] S3, heavy water irrigation:

[0085] Use the irrigation system to fully irrigate the deep-turned sandy land to ensure that the sandy land is thoroughly irrigated. The irrigation water volume should be 80% of the field water holding capacity per square meter of sandy land. Ensure that the water penetrates deep into the sandy land and thoroughly irrigates the sandy land to promote the dissolution and discharge of saline-alkali components in the sandy land.

[0086] S4. Fertilize according to the soil quality:

[0087] a) Early fertilization: Apply the improver on the sand after deep plowing and irrigation, 3 tons per mu of land per year, for 2 consecutive years, spread the improver evenly on the surface of the sand, and then mix it into the top 13 cm of the sand by shallow plowing or rotary tillage to adjust the pH of the sand and improve the structure of the sand; in this embodiment, the pH value of the sand is adjusted to 7 by using the improver.

[0088] Specifically, the improver is prepared from oil shale and humus shale in a weight ratio of 2:1, and achieves effective control of desertified land by adjusting the pH value of the sand, improving the structure of the sand, and providing the medium and trace elements required for plant growth.

[0089] Among them, humus shale can improve the structure of sand, promote the agglomeration of sand particles, increase the porosity and aeration of sand, thereby achieving the effect of improving the physical structure of sand, helping root growth, and improving the efficiency of plant absorption of water and nutrients.

[0090] At the same time, humus shale is rich in organic carbon and is an important carbon source for sand microorganisms. It can promote the reproduction and activity of sand microorganisms, and can adsorb and slowly release nutrients in the sand, reduce nutrient loss, and improve fertilizer utilization.

[0091] Moreover, humus shale has a buffering effect, which can regulate the pH value of the sand to keep it within a range suitable for plant growth. It also has a strong water absorption capacity, which can improve the water retention capacity of the sand, reduce water evaporation, and improve water utilization efficiency.

[0092] In actual implementation, humus comes from natural organic matter, has good ecological compatibility, is environmentally friendly, and decomposes slowly in sand, and can continuously provide nutrients and improve sand structure.

[0093] Oil shale is rich in trace elements such as iron, manganese, copper, zinc, boron, and molybdenum. These elements are involved in various physiological processes in plants, such as photosynthesis, enzyme activity, cell division, etc., and are essential for plant growth and development.

[0094] At the same time, oil shale has a certain acid-base buffering capacity and can work synergistically with humus shale to regulate the pH value of sand.

[0095] In addition, the particles of oil shale are small and can fill the pores in the sand, increase the density and stability of the sand, help prevent sand erosion, and improve the sand's resistance to wind and water erosion.

[0096] In this embodiment,

[0097] The synergistic effect of humus shale and oil shale can effectively regulate the pH value of the sand, keeping it within a range suitable for plant growth.

[0098] At the same time, humus shale can improve the physical structure of sand, increase the porosity and air permeability of sand, while oil shale can fill the pores of sand, increase the density and stability of sand. The combination of the two can significantly improve the physical properties of sand and provide a good sand environment for the growth of plant roots.

[0099] In addition, oil shale is rich in trace elements such as iron, manganese, copper, zinc, boron, and molybdenum, which are necessary for plant growth. The use of this modifier can effectively supplement the nutrients lacking in the sand, promote plant growth and development, and improve the plant's disease resistance, drought resistance, and cold resistance. Humus shale can increase the organic matter content of the sand and increase the sand's water and fertilizer retention capacity, while oil shale can provide a variety of trace elements. The combination of the two can significantly improve the fertility of the sand and provide sufficient nutrients for plant growth.

[0100] Furthermore, for sandy land with a high degree of salinization, after the expiration of the two-year period, the amendment can continue to be applied for one year, with 3 tons per mu of land applied per year.

[0101] b) Later stage fertilization: according to the type of crops planted, add appropriate trace element fertilizers on the basis of early fertilization;

[0102] In this embodiment, for growing plants with high nitrogen and potassium requirements, 75 kg of mixed fertilizer of urea and potassium chloride is applied per mu of land per year, wherein urea and potassium chloride are prepared in a weight ratio of 2:1.

[0103] S5. Field management:

[0104] a) Observation and record: Regularly observe, record and analyze the pH value, nutrient content, sand structure and plant growth indicators of the sand;

[0105] Specifically, observation records include:

[0106] Sand testing: Conduct sand pH, organic matter content, and nutrient content testing at least once every quarter;

[0107] Plant growth observation: Observe plant growth conditions at least once a week, including plant height, leaf color, and growth rate indicators;

[0108] Data recording and analysis: Establish sand and plant growth data archives, record and analyze test data and observation results, so as to adjust fertilization plans and management measures in a timely manner.

[0109] b) Artificial intervention: Based on the observation results, artificial intervention is carried out in a timely manner to ensure the sand improvement effect and normal growth of crops.

[0110] In this embodiment, for iron-deficient plants, 0.1% ferrous sulfate solution is sprayed on the leaves once every 8 days for 3 consecutive times.

[0111] For zinc-deficient plants, apply 1 kg of zinc sulfate per acre of land in the early stages of plant growth.

[0112] Embodiment 3

[0113] A method for sand control using organic mineral fertilizers comprises the following steps:

[0114] S1. Land leveling:

[0115] The desertified land to be treated is leveled by mechanical equipment to make it flat, ensuring that the error of the land surface flatness does not exceed ±5 cm, so as to facilitate the subsequent sand treatment and planting operations;

[0116] S2. Deep plowing in sandy land:

[0117] Use deep tillage machinery to deep plow the leveled land over a large area to a depth of 50cm to break up the compacted layer of sand and improve the air permeability and water permeability of the sand;

[0118] At the same time, the sand after deep plowing should be loose and free of obvious large lumps of soil, ensuring that the sand structure is suitable for the growth of plant roots.

[0119] S3, heavy water irrigation:

[0120] Use the irrigation system to fully irrigate the deep-turned sandy land to ensure that the sandy land is thoroughly irrigated. The irrigation water volume should be 85% of the field water holding capacity per square meter of sandy land. Ensure that the water penetrates deep into the sandy land and thoroughly irrigates the sandy land to promote the dissolution and discharge of saline-alkali components in the sandy land.

[0121] S4. Fertilize according to the soil quality:

[0122] a) Early fertilization: Apply the improver on the sand after deep plowing and irrigation, 4 tons per mu of land per year, for 3 consecutive years, spread the improver evenly on the surface of the sand, and then mix it into the top 15 cm of the sand by shallow plowing or rotary tillage to adjust the pH of the sand and improve the structure of the sand; in this embodiment, the pH value of the sand is adjusted to 7.5 by using the improver.

[0123] Specifically, the improver is prepared from oil shale and humus shale in a weight ratio of 2:1, and achieves effective control of desertified land by adjusting the pH value of the sand, improving the structure of the sand, and providing the medium and trace elements required for plant growth.

[0124] Among them, humus shale can improve the structure of sand, promote the agglomeration of sand particles, increase the porosity and aeration of sand, thereby achieving the effect of improving the physical structure of sand, helping root growth, and improving the efficiency of plant absorption of water and nutrients.

[0125] At the same time, humus shale is rich in organic carbon and is an important carbon source for sand microorganisms. It can promote the reproduction and activity of sand microorganisms, and can adsorb and slowly release nutrients in the sand, reduce nutrient loss, and improve fertilizer utilization.

[0126] Moreover, humus shale has a buffering effect, which can regulate the pH value of the sand to keep it within a range suitable for plant growth. It also has a strong water absorption capacity, which can improve the water retention capacity of the sand, reduce water evaporation, and improve water utilization efficiency.

[0127] In actual implementation, humus comes from natural organic matter, has good ecological compatibility, is environmentally friendly, and decomposes slowly in sand, and can continuously provide nutrients and improve sand structure.

[0128] Oil shale is rich in trace elements such as iron, manganese, copper, zinc, boron, and molybdenum. These elements are involved in various physiological processes in plants, such as photosynthesis, enzyme activity, cell division, etc., and are essential for plant growth and development.

[0129] At the same time, oil shale has a certain acid-base buffering capacity and can work synergistically with humus shale to regulate the pH value of sandy land.

[0130] In addition, the particles of oil shale are small and can fill the pores in the sand, increase the density and stability of the sand, help prevent sand erosion, and improve the sand's resistance to wind and water erosion.

[0131] In this embodiment,

[0132] The synergistic effect of humus shale and oil shale can effectively regulate the pH value of the sand, keeping it within a range suitable for plant growth.

[0133] At the same time, humus shale can improve the physical structure of sand, increase the porosity and air permeability of sand, while oil shale can fill the pores of sand, increase the density and stability of sand. The combination of the two can significantly improve the physical properties of sand and provide a good sand environment for the growth of plant roots.

[0134] In addition, oil shale is rich in trace elements such as iron, manganese, copper, zinc, boron, and molybdenum, which are necessary for plant growth. The use of this modifier can effectively supplement the nutrients lacking in the sand, promote plant growth and development, and improve the plant's disease resistance, drought resistance, and cold resistance. Humus shale can increase the organic matter content of the sand and increase the sand's water and fertilizer retention capacity, while oil shale can provide a variety of trace elements. The combination of the two can significantly improve the fertility of the sand and provide sufficient nutrients for plant growth.

[0135] Furthermore, for sandy land with a high degree of salinization, after the 2-year period expires, the improver can continue to be applied for 2 years, with 4 tons per acre per year.

[0136] b) Later stage fertilization: according to the type of crops planted, add appropriate trace element fertilizers on the basis of early fertilization;

[0137] In this embodiment, plants with high nitrogen and potassium requirements are planted, and 100 kg of mixed fertilizer of urea and potassium chloride is applied per mu of land per year, wherein urea and potassium chloride are prepared in a weight ratio of 2:1.

[0138] S5. Field management:

[0139] a) Observation and record: Regularly observe, record and analyze the pH value, nutrient content, sand structure and plant growth indicators of the sand;

[0140] Specifically, observation records include:

[0141] Sand testing: Conduct sand pH, organic matter content, and nutrient content testing at least once every quarter;

[0142] Plant growth observation: Observe plant growth conditions at least once a week, including plant height, leaf color, and growth rate indicators;

[0143] Data recording and analysis: Establish sand and plant growth data archives, record and analyze test data and observation results, so as to adjust fertilization plans and management measures in a timely manner.

[0144] b) Artificial intervention: Based on the observation results, artificial intervention is carried out in a timely manner to ensure the sand improvement effect and normal growth of crops.

[0145] In this embodiment, for iron-deficient plants, 0.2% ferrous sulfate solution is sprayed on the leaves once every 10 days for 4 consecutive times.

[0146] For zinc-deficient plants, apply 2 kg of zinc sulfate per acre of land in the early stages of plant growth.

[0147] The present invention and its implementation methods are described above, but such description is not restrictive, and what is shown is only one of the implementation methods of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A method for sand control using organic mineral fertilizers, characterized in that: The following steps are involved: S1. Land leveling: The desertified land to be treated is leveled by mechanical equipment to make it flat, ensuring that the error of the land surface flatness does not exceed ±5 cm, so as to facilitate the subsequent sand treatment and planting operations; S2. Deep plowing in sand: Use deep tillage machinery to deep plow the leveled land over a large area to a depth of 30 to 50 cm to break up the compacted layer of sand and improve the air permeability and water permeability of the sand; S3, heavy water irrigation: Use the irrigation system to fully irrigate the deep-turned sandy land to ensure that the sandy land is thoroughly irrigated. The irrigation water volume should be 75%-85% of the field water holding capacity per square meter of sandy land. Ensure that the water penetrates deep into the sandy land and thoroughly irrigates the sandy land to promote the dissolution and discharge of saline-alkali components in the sandy land. S4. Fertilize according to the soil quality: a) Early fertilization: Apply the amendment on the sandy land after deep plowing and irrigation, 2 to 4 tons per mu per year, for 1 to 3 consecutive years. Spread the amendment evenly on the surface of the sandy land, and then mix it into the surface layer of the sandy land 10 to 15 cm through shallow plowing or rotary tillage to adjust the pH value of the sandy land and improve the structure of the sandy land; b) Later stage fertilization: according to the type of crops planted, add appropriate trace element fertilizers on the basis of early fertilization; S5. Field management: a) Observation and record: Regularly observe, record and analyze the pH value, nutrient content, sand structure and plant growth indicators of the sand; b) Artificial intervention: Based on the observation results, artificial intervention is carried out in a timely manner to ensure the sand improvement effect and normal growth of crops.

2. A method for sand control using organic mineral fertilizer according to claim 1, characterized in that: The improver is prepared from oil shale and humus shale in a weight ratio of 2:

1.

3. A method for sand control using organic mineral fertilizer according to claim 1, characterized in that: In the early fertilization in S4, the pH value of the sand was adjusted to 6.5-7.5 through the use of improvers.

4. A method for sand control using organic mineral fertilizer according to claim 1, characterized in that: In S4, for sandy land with a high degree of salinization, after the 2-year period, the amendment can continue to be applied for 1 to 2 years, with 2 to 4 tons per mu of land applied per year.

5. The method for sand control using organic mineral fertilizer according to claim 1, characterized in that: In the later fertilization in S4, for plants with higher nitrogen and potassium requirements, 50 to 100 kg of mixed fertilizer of urea and potassium chloride is applied per mu of land per year, wherein urea and potassium chloride are prepared in a weight ratio of 2:

1.

6. The method for sand control using organic mineral fertilizer according to claim 1, characterized in that: The observations recorded in S5 include: Sand testing: Conduct sand pH, organic matter content, and nutrient content testing at least once every quarter; Plant growth observation: Observe plant growth conditions at least once a week, including plant height, leaf color, and growth rate indicators; Data recording and analysis: Establish sand and plant growth data archives, record and analyze test data and observation results, so as to adjust fertilization plans and management measures in a timely manner.