Peanut planting-based saline-alkali soil improvement method

Abstract

The invention relates to the technical field of saline-alkali soil improvement, and discloses a saline-alkali soil improvement method based on peanut planting, which comprises the following steps: S1, digging drainage ditches in the surface of saline-alkali soil; s2, concealed pipes are laid below the drainage ditches, after the concealed pipes are laid, backfilling needs to be conducted in time, alkali removal inspection wells are piled up, and then the concealed pipes are laid in the alkali removal inspection wells; s3, self-preparing a decomposed organic fertilizer, and applying the decomposed organic fertilizer into the planting area; s4, deep ploughing and deep scarification are conducted on the planting area where the decomposed organic fertilizer is applied, and the soil structure is changed; according to the method, multiple improvement is conducted on the saline-alkali soil through the method that drainage ditches are dug and concealed pipes are laid in cooperation with peanut planting, the improvement efficiency is improved, the improvement cost is reduced, and therefore the problems that in the prior art, salt leaching is conducted through drainage, and the soil quality is poor are solved. Water resources are wasted, soil nutrient loss is easily caused, and the yield of follow-up planted crops is affected.

Description

Technical Field

[0001] The invention relates to the technical field of saline-alkali land improvement, and in particular to a saline-alkali land improvement method based on peanut planting. Background Art

[0002] Saline-alkali land is a soil environment containing a large amount of salt. Due to the high salt content inside it, most crops cannot grow on its surface. Therefore, in order to increase the arable land area, relevant personnel need to improve the saline-alkali land.

[0003] Most of the existing saline-alkali lands are improved by draining and washing salt. This method requires fresh water to flush the saline-alkali land, which not only consumes a lot of water resources, but also causes the loss of nutrients in the soil, affecting the yield of subsequent crops. For this reason, a saline-alkali land improvement method based on peanut planting is proposed. Summary of the invention

[0004] The purpose of the present invention is to provide a method for improving saline-alkali land based on peanut planting, so as to solve the problem that most of the existing saline-alkali land proposed in the above background technology is improved by draining and washing salt. This method requires fresh water to flush the saline-alkali land, which not only consumes a large amount of water resources, but also causes the nutrients in the soil to be lost, affecting the yield of subsequent crops.

[0005] To achieve the above object, the present invention provides the following technical solution: a method for improving saline-alkali land based on peanut planting, comprising the following steps:

[0006] S1, digging drainage ditches on the surface of saline-alkali land;

[0007] S2, lay the concealed pipe under the drainage ditch. After the concealed pipe is laid, it should be backfilled in time, and the alkali drainage inspection well should be piled up, and then the concealed pipe should be laid into the alkali drainage inspection well;

[0008] S3, making self-decomposed organic fertilizer and applying it to the planting area;

[0009] S4, deep ploughing and loosening are carried out on the remaining planting areas where decomposed organic fertilizer is applied to change the soil structure;

[0010] S5, planting peanuts in the area where deep plowing has been completed and applying top dressing fertilizer at a later stage.

[0011] Preferably, in S1, the spacing between the drainage ditches is 50m to 100m, and the depth of the drainage ditches is 1.5m to 2m.

[0012] Preferably, in S2, the concealed pipe is made of PVC pipe or HDPE pipe, and the buried depth of the concealed pipe is 1.5 to 2.5 m.

[0013] Preferably, in S2, the concealed pipe needs to be wrapped with non-woven fabric on the surface before laying, and the non-woven fabric is wound in three layers. After the winding is completed, the non-woven fabric needs to be fixed with the help of hemp rope or cable tie.

[0014] Preferably, in S3, the following sub-steps are included:

[0015] S301: Fresh chicken, pig, cow, sheep, horse manure, livestock and poultry manure, sugar mud and urban sludge can be collected nearby as wet materials and spread on open ground;

[0016] S302: Collect rice straw, wheat straw, rape husk, rice husk, leaves, crop straw and weeds from the countryside as dry materials, crush them into 3-5 cm in length, and spread them on the surface of the wet materials in S301;

[0017] S303: Mixing and stirring the dry material and the wet material with an excavator or a mixer to form a base fertilizer, and then mixing and stirring the base fertilizer with an organic fertilizer fermentation agent to form an organic fertilizer;

[0018] S304: The organic fertilizer in S303 is piled up to form a pile, and covered with plastic sheet for sealed fermentation.

[0019] Preferably, the mass ratio of the dry material to the wet material is 3:1 to 5:1;

[0020] The mass ratio of organic fertilizer fermentation agent to base fertilizer in S303 is 1:10000 to 1:7000.

[0021] Preferably, in S303, after the stirring is completed, the moisture content of the organic fertilizer is 55% to 67%.

[0022] Preferably, in S304, the pile width is 1.5 meters, the pile height is 0.8 to 1.5 meters, and the fermentation time is 18 to 24 days.

[0023] Preferably, in S5, the peanut planting depth is 2 cm to 8 cm;

[0024] The first topdressing is performed when the peanuts grow to 35-40 days, and the second topdressing is performed when the peanuts grow to 60-65 days.

[0025] Preferably, in S4, organic fertilizer is made 2 to 3 weeks before deep plowing and deep loosening. During the deep plowing and deep loosening process, the organic fertilizer, phosphate fertilizer and potassium fertilizer made in S3 are mixed and applied to the soil. The organic fertilizer made in S3 is used in an amount of 3000 to 4000 kg per mu, the phosphate fertilizer can be compound phosphate fertilizer or phosphate rock fertilizer, with an amount of 30 to 50 kg per mu, and the potassium fertilizer can be potassium chloride or potassium sulfate, with an amount of 30 to 50 kg per mu.

[0026] Compared with the prior art, the present invention adopts the above technical solution and has the following technical effects:

[0027] 1. The present invention makes multiple improvements to saline-alkali land by digging drainage ditches, laying concealed pipes and planting peanuts, which not only improves the efficiency of improvement, but also reduces the cost of improvement, thereby solving the problem that the prior art relies on drainage to wash salt, which not only wastes water resources but also easily leads to loss of soil nutrients, affecting the yield of subsequent crops.

[0028] 2. The present invention not only reduces the cost of fertilization by making its own organic fertilizer, but also promotes the growth of peanuts, thereby increasing peanut yields and further increasing farmers' economic income. At the same time, good growth of peanuts can also accelerate the absorption of salt in saline-alkali land, thereby accelerating the improvement process. DETAILED DESCRIPTION

[0029] Obviously, the embodiments described below are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Most of the saline-alkali lands in the prior art are improved by draining and washing the salt. This method requires fresh water to flush the saline-alkali land, which not only consumes a large amount of water resources, but also causes the loss of nutrients in the soil, affecting the yield of subsequent crops.

[0031] Example 1

[0032] A method for improving saline-alkali land based on peanut planting comprises the following steps:

[0033] S1, digging drainage ditches on the surface of saline-alkali land;

[0034] The spacing between drains is 70m and the depth of the drains is 1.6m.

[0035] S2, lay the concealed pipe under the drainage ditch. After the concealed pipe is laid, it should be backfilled in time and the alkali drainage inspection well should be piled up. After that, the concealed pipe should be laid in the alkali drainage inspection well;

[0036] The material of the concealed pipe is PVC pipe or HDPE pipe, and the buried depth of the concealed pipe is 1.8m. This type of pipe has good corrosion resistance and can be located below the ground for a long time. In S2, the concealed pipe needs to be wrapped with non-woven fabric on the surface before laying, and the non-woven fabric is wrapped in three layers. After wrapping, the non-woven fabric needs to be fixed with hemp rope or cable ties.

[0037] S3, making self-decomposed organic fertilizer and applying it to the planting area;

[0038] The production of decomposed organic fertilizer includes the following sub-steps:

[0039] S301: Fresh chicken, pig, cow, sheep, horse manure, livestock and poultry manure, sugar mud and urban sludge can be collected nearby as wet materials and spread on open ground;

[0040] S302: Collect rice straw, wheat straw, rape husk, rice husk, leaves, crop straw and weeds from the countryside as dry materials, crush them into 4 cm in length, and spread them on the surface of the wet materials in S301;

[0041] S303: Mix and stir the dry material and the wet material with the help of an excavator or a mixer to make a base fertilizer. After that, mix and stir the base fertilizer with an organic fertilizer fermentation agent to form organic fertilizer. The mass ratio of the dry material to the wet material is 3:1. The mass ratio of the organic fertilizer fermentation agent to the base fertilizer in S303 is 1:10000. In order to increase the air permeability of the organic fertilizer, rice bran or oil cake can be added when adding the organic fertilizer fermentation agent. The ratio of the organic fertilizer fermentation agent to rice bran / oil cake is 1:1000. The moisture content of the organic fertilizer is 60%, that is, the staff can hold a handful of materials tightly without water seeping out through the fingers, and it is suitable for the material to fall apart when it hits the ground.

[0042] S304: The organic fertilizer in S303 is piled up to form a pile body, which is covered with plastic sheet for sealed fermentation. The width of the pile body is 1.5 meters, the height of the pile is 1.3 meters, and the fermentation time is 19 days.

[0043] S4, deep ploughing and loosening of the planting area where decomposed organic fertilizer is applied to change the soil structure;

[0044] Organic fertilizer is made 2 weeks before deep tillage and deep loosening. During deep tillage and deep loosening, the organic fertilizer, phosphate fertilizer and potash fertilizer made in S3 are mixed and applied to the soil. The amount of organic fertilizer made in S3 is 3500Kg per mu. Phosphorus fertilizer can be compound phosphate fertilizer or phosphate rock fertilizer, with an amount of 45Kg per mu. Potassium fertilizer can be potassium chloride or potassium sulfate, with an amount of 40Kg per mu.

[0045] S5, planting peanuts in the area where deep plowing was completed and applying top dressing at a later stage;

[0046] The planting depth of peanuts is 6cm, the ridge spacing is 35cm, the hole spacing is 16cm, and 2 peanuts are sown in each hole. The first topdressing is done on the 37th day of growth, and the second topdressing is done on the 62nd day. The fertilizers used for topdressing are all homemade organic fertilizers.

[0047] Example 2

[0048] The difference between this embodiment and embodiment 1 is that:

[0049] The following steps are involved:

[0050] S1, digging drainage ditches on the surface of saline-alkali land;

[0051] The spacing between drains is 80m and the depth of the drains is 1.8m.

[0052] S2, lay the concealed pipe under the drainage ditch. After the concealed pipe is laid, it should be backfilled in time and the alkali drainage inspection well should be piled up. After that, the concealed pipe should be laid in the alkali drainage inspection well;

[0053] The material of the concealed pipe is PVC pipe or HDPE pipe, and the buried depth of the concealed pipe is 1.8m. This type of pipe has good corrosion resistance and can be located below the ground for a long time. In S2, the concealed pipe needs to be wrapped with non-woven fabric on the surface before laying, and the non-woven fabric is wrapped in three layers. After wrapping, the non-woven fabric needs to be fixed with hemp rope or cable ties.

[0054] S3, making self-decomposed organic fertilizer and applying it to the planting area;

[0055] The production of decomposed organic fertilizer includes the following sub-steps:

[0056] S301: Fresh chicken, pig, cow, sheep, horse manure, livestock and poultry manure, sugar mud and urban sludge can be collected nearby as wet materials and spread on open ground;

[0057] S302: collecting rice straw, wheat straw, rapeseed husk, rice husk, leaves, crop straw and weeds from the countryside as dry materials, and then crushing the collected dry materials to a length of 4 cm, and spreading them on the surface of the wet materials in S301;

[0058] S303: Dry materials and wet materials are mixed and stirred with the help of an excavator or a mixer to form a base fertilizer. After that, the base fertilizer is mixed and stirred with an organic fertilizer fermentation agent to form organic fertilizer. The mass ratio of dry materials to wet materials is 3:1. The mass ratio of the organic fertilizer fermentation agent to the base fertilizer in S303 is 1:10000. In order to increase the air permeability of the organic fertilizer, rice bran or oil cake can be added when adding the organic fertilizer fermentation agent. The ratio of the organic fertilizer fermentation agent to rice bran / oil cake is 1:1000. The moisture content of the organic fertilizer is 60%, that is, the staff can hold a handful of materials tightly without water seeping out through the fingers, and it is suitable for the material to fall apart as soon as it hits the ground.

[0059] S304: The organic fertilizer in S303 is piled up to form a pile body, which is covered with plastic sheet for sealed fermentation. The width of the pile body is 1.5 meters, the height of the pile is 1.3 meters, and the fermentation time is 19 days.

[0060] S4, deep ploughing and loosening of the planting ground with decomposed organic fertilizer to change the soil structure;

[0061] Organic fertilizer is made 2 weeks before deep tillage and deep loosening. During deep tillage and deep loosening, the organic fertilizer, phosphate fertilizer and potash fertilizer made in S3 are mixed and applied to the soil. The amount of organic fertilizer made in S3 is 3500Kg per mu. Phosphorus fertilizer can be compound phosphate fertilizer or phosphate rock fertilizer, with an amount of 45Kg per mu. Potassium fertilizer can be potassium chloride or potassium sulfate, with an amount of 40Kg per mu.

[0062] S5, planting peanuts in the area where deep plowing was completed and applying top dressing at a later stage;

[0063] The planting depth of peanuts is 6cm, the ridge spacing is 35cm, the hole spacing is 16cm, and 2 peanuts are sown in each hole. The first topdressing is done on the 37th day of growth, and the second topdressing is done on the 62nd day. The fertilizers used for topdressing are all homemade organic fertilizers.

[0064] Example 3

[0065] The difference between this embodiment and embodiment 1 and embodiment 2 is that:

[0066] The following steps are involved:

[0067] S2, lay the concealed pipe under the drainage ditch. After the concealed pipe is laid, it should be backfilled in time and the alkali drainage inspection well should be piled up. After that, the concealed pipe should be laid in the alkali drainage inspection well;

[0068] The material of the concealed pipe is PVC pipe or HDPE pipe, and the buried depth of the concealed pipe is 2.2m. This type of pipe has good corrosion resistance and can be located below the ground for a long time. In S2, the concealed pipe needs to be wrapped with non-woven fabric on the surface before laying, and the non-woven fabric is wrapped in five layers. After wrapping, the non-woven fabric needs to be fixed with hemp rope or cable ties.

[0069] S3. Make your own decomposed organic fertilizer and apply it to the planting area;

[0070] The production of decomposed organic fertilizer includes the following sub-steps:

[0071] S301: Fresh chicken, pig, cow, sheep, horse manure, livestock and poultry manure, sugar mud and urban sludge can be collected nearby as wet materials and spread on open ground;

[0072] S302: collecting rice straw, wheat straw, rapeseed husk, rice husk, leaves, crop straw and weeds from the countryside as dry materials, and then crushing the collected dry materials to a length of 4 cm, and spreading them on the surface of the wet materials in S301;

[0073] S303: Mix and stir the dry material and the wet material with the help of an excavator or a mixer to make a base fertilizer. After that, mix and stir the base fertilizer with an organic fertilizer fermentation agent to form organic fertilizer. The mass ratio of the dry material to the wet material is 3:1. The mass ratio of the organic fertilizer fermentation agent to the base fertilizer in S303 is 1:10000. In order to increase the air permeability of the organic fertilizer, rice bran or oil cake can be added when adding the organic fertilizer fermentation agent. The ratio of the organic fertilizer fermentation agent to rice bran / oil cake is 1:1000. The moisture content of the organic fertilizer is 60%, that is, the staff can hold a handful of materials tightly without water seeping out through the fingers, and it is suitable for the material to fall apart when it hits the ground.

[0074] S304: The organic fertilizer in S303 is piled up to form a pile body, which is covered with plastic sheet for sealed fermentation. The width of the pile body is 1.5 meters, the height of the pile is 1.3 meters, and the fermentation time is 19 days.

[0075] S4, deep ploughing and loosening of the planting ground with decomposed organic fertilizer to change the soil structure;

[0076] Organic fertilizer is made 2 weeks before deep tillage and deep loosening. During deep tillage and deep loosening, the organic fertilizer, phosphate fertilizer and potash fertilizer made in S3 are mixed and applied to the soil. The amount of organic fertilizer made in S3 is 3500Kg per mu. Phosphorus fertilizer can be compound phosphate fertilizer or phosphate rock fertilizer, with an amount of 45Kg per mu. Potassium fertilizer can be potassium chloride or potassium sulfate, with an amount of 40Kg per mu.

[0077] S5, planting peanuts in the area where deep plowing was completed and applying top dressing at a later stage;

[0078] The planting depth of peanuts is 6cm, the ridge spacing is 35cm, the hole spacing is 16cm, and 2 peanuts are sown in each hole. The first topdressing is done on the 37th day of growth, and the second topdressing is done on the 62nd day. The fertilizers used for topdressing are all homemade organic fertilizers.

[0079] Example 4

[0080] The difference between this embodiment and Embodiment 1, Embodiment 2 and Embodiment 3 is that:

[0081] The following steps are involved:

[0082] S3, making self-decomposed organic fertilizer and applying it to the planting area;

[0083] The production of decomposed organic fertilizer includes the following sub-steps:

[0084] S301: Fresh chicken, pig, cow, sheep, horse manure, livestock and poultry manure, sugar mud and urban sludge can be collected nearby as wet materials and spread on open ground;

[0085] S302: collecting rice straw, wheat straw, rapeseed husk, rice husk, leaves, crop straw and weeds from the countryside as dry materials, and then crushing the collected dry materials to a length of 4 cm, and spreading them on the surface of the wet materials in S301;

[0086] S303: Dry materials and wet materials are mixed and stirred with the aid of an excavator or a mixer to form a base fertilizer. After that, the base fertilizer is mixed and stirred with an organic fertilizer fermentation agent to form organic fertilizer. The mass ratio of dry materials to wet materials is 5:1. The mass ratio of the organic fertilizer fermentation agent to the base fertilizer in S303 is 1:7000. In order to increase the air permeability of the organic fertilizer, rice bran or oil cake can be added when adding the organic fertilizer fermentation agent. The ratio of the organic fertilizer fermentation agent to rice bran / oil cake is 1:1000. The moisture content of the organic fertilizer is 60%, that is, the staff can hold a handful of materials tightly without water seeping out through the fingers, and the organic fertilizer will scatter as soon as it hits the ground.

[0087] S304: The organic fertilizer in S303 is piled up to form a pile body, which is covered with plastic sheet for sealed fermentation. The width of the pile body is 1.5 meters, the height of the pile is 1.3 meters, and the fermentation time is 19 days.

[0088] S4, deep ploughing and loosening of the planting ground with decomposed organic fertilizer to change the soil structure;

[0089] Organic fertilizer is made 2 weeks before deep tillage and deep loosening. During deep tillage and deep loosening, the organic fertilizer, phosphate fertilizer and potash fertilizer made in S3 are mixed and applied to the soil. The amount of organic fertilizer made in S3 is 3500Kg per mu. Phosphorus fertilizer can be compound phosphate fertilizer or phosphate rock fertilizer, with an amount of 45Kg per mu. Potassium fertilizer can be potassium chloride or potassium sulfate, with an amount of 40Kg per mu.

[0090] S5, planting peanuts on the surface of the land after deep plowing, and applying top dressing at a later stage;

[0091] The planting depth of peanuts is 6cm, the ridge spacing is 35cm, the hole spacing is 16cm, and 2 peanuts are sown in each hole. The first topdressing is done on the 37th day of growth, and the second topdressing is done on the 62nd day. The fertilizers used for topdressing are all homemade organic fertilizers.

[0092] Example 5

[0093] The present embodiment is different from Embodiment 1, Embodiment 2, Embodiment 3 and Embodiment 4 in that:

[0094] The following steps are involved:

[0095] S1, digging drainage ditches on the surface of saline-alkali land;

[0096] The spacing between drains is 120m and the depth of the drains is 2.2m.

[0097] S2, lay the concealed pipe under the drainage ditch. After the concealed pipe is laid, it should be backfilled in time and the alkali drainage inspection well should be piled up. After that, the concealed pipe should be laid in the alkali drainage inspection well;

[0098] The material of the concealed pipe is PVC pipe or HDPE pipe, and the buried depth of the concealed pipe is 2m. This type of pipe has good corrosion resistance and can be located below the ground for a long time. In S2, the concealed pipe needs to be wrapped with non-woven fabric on the surface before laying, and the non-woven fabric is wrapped in three layers. After wrapping, the non-woven fabric needs to be fixed with hemp rope or cable ties.

[0099] S3, making self-decomposed organic fertilizer and applying it to the planting area;

[0100] The production of decomposed organic fertilizer includes the following sub-steps:

[0101] S301: Fresh chicken, pig, cow, sheep, horse manure, livestock and poultry manure, sugar mud and urban sludge can be collected nearby as wet materials and spread on open ground;

[0102] S302: collecting rice straw, wheat straw, rapeseed husk, rice husk, leaves, crop straw and weeds from the countryside as dry materials, and then crushing the collected dry materials to a length of 4 cm, and spreading them on the surface of the wet materials in S301;

[0103] S303: Dry materials and wet materials are mixed and stirred with the help of an excavator or a mixer to form a base fertilizer. After that, the base fertilizer is mixed and stirred with an organic fertilizer fermentation agent to form organic fertilizer. The mass ratio of dry materials to wet materials is 3:1. The mass ratio of the organic fertilizer fermentation agent to the base fertilizer in S303 is 1:10000. In order to increase the air permeability of the organic fertilizer, rice bran or oil cake can be added when adding the organic fertilizer fermentation agent. The ratio of the organic fertilizer fermentation agent to rice bran / oil cake is 1:1000. The moisture content of the organic fertilizer is 60%, that is, the staff can hold a handful of materials tightly without water seeping out through the fingers, and it is suitable for the material to fall apart as soon as it hits the ground.

[0104] S304: The organic fertilizer in S303 is piled up to form a pile body, which is covered with plastic sheet for sealed fermentation. The width of the pile body is 1.5 meters, the height of the pile is 1.3 meters, and the fermentation time is 19 days.

[0105] S4, deep ploughing and loosening of the planting ground with decomposed organic fertilizer to change the soil structure;

[0106] Organic fertilizer is made 2 weeks before deep tillage and deep loosening. During deep tillage and deep loosening, the organic fertilizer, phosphate fertilizer and potash fertilizer made in S3 are mixed and applied to the soil. The amount of organic fertilizer made in S3 is 3500Kg per mu. Phosphorus fertilizer can be compound phosphate fertilizer or phosphate rock fertilizer, with an amount of 45Kg per mu. Potassium fertilizer can be potassium chloride or potassium sulfate, with an amount of 40Kg per mu.

[0107] S5, planting peanuts on the surface of the land after deep plowing, and applying top dressing at a later stage;

[0108] The planting depth of peanuts is 6cm, the ridge spacing is 35cm, the hole spacing is 16cm, and 2 peanuts are sown in each hole. The first topdressing is done on the 37th day of growth, and the second topdressing is done on the 62nd day. The fertilizers used for topdressing are all homemade organic fertilizers.

[0109] In summary, this method has the advantages of low improvement cost and the ability to create additional economic income.

[0110] It will be appreciated by those skilled in the art that the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways, even if such combinations and / or combinations are not explicitly described in the present invention. In particular, the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways without departing from the spirit and teachings of the present invention. All of these combinations and / or combinations fall within the scope of the present invention.

Claims

1. A method for improving saline-alkali land based on peanut planting, characterized in that: The following steps are involved: S1, digging drainage ditches on the surface of saline-alkali land; S2, lay the concealed pipe under the drainage ditch. After the concealed pipe is laid, it should be backfilled in time, and the alkali drainage inspection well should be piled up, and then the concealed pipe should be laid into the alkali drainage inspection well; S3, making self-decomposed organic fertilizer and applying it to the planting area; S4, deep ploughing and loosening of the planting area where decomposed organic fertilizer is applied to change the soil structure; S5, planting peanuts in the area where deep plowing is completed and applying top dressing fertilizer at a later stage.

2. The method for improving saline-alkali land based on peanut planting according to claim 1, characterized in that: In S1, the distance between the drainage ditches is 50m to 100m, and the depth of the drainage ditches is 1.5m to 2m.

3. The method for improving saline-alkali land based on peanut planting according to claim 1, characterized in that: In S2, the material of the concealed pipe is a PVC pipe or a HDPE pipe, and the buried depth of the concealed pipe is 1.5 to 2.5 m.

4. The method for improving saline-alkali land based on peanut planting according to claim 1, characterized in that: In S2, the concealed pipe needs to be wrapped with non-woven fabric on the surface before laying, and the non-woven fabric is wound in three layers. After the winding is completed, the non-woven fabric needs to be fixed with hemp rope or cable tie.

5. The method for improving saline-alkali land based on peanut planting according to claim 1, characterized in that: In S3, the following sub-steps are included: S301: Fresh chicken, pig, cow, sheep, horse manure, livestock and poultry manure, sugar mud and urban sludge can be collected nearby as wet materials and spread on open ground; S302: Collect rice straw, wheat straw, rapeseed husk, rice husk, leaves, crop straw and weeds from the countryside as dry materials, crush them to a length of 3 to 5 cm, and spread them on the surface of the wet materials in S301; S303: Mixing and stirring the dry material and the wet material with an excavator or a mixer to form a base fertilizer, and then mixing and stirring the base fertilizer with an organic fertilizer fermentation agent to form an organic fertilizer; S304: The organic fertilizer in S303 is piled up to form a pile, and covered with plastic sheet for sealed fermentation.

6. The method for improving saline-alkali land based on peanut planting according to claim 5, characterized in that: The mass ratio of the dry material to the wet material is 3:1 to 5:1; The mass ratio of organic fertilizer fermentation agent to base fertilizer in S303 is 1:10000 to 1:7000.

7. The method for improving saline-alkali land based on peanut planting according to claim 5, characterized in that: In S303, after the stirring is completed, the moisture content of the organic fertilizer is 55% to 67%.

8. The method for improving saline-alkali land based on peanut planting according to claim 5, characterized in that: In S304, the pile width is 1.5 meters, the pile height is 0.8 to 1.5 meters, and the fermentation time is 18 to 24 days.

9. The method for improving saline-alkali land based on peanut planting according to claim 1, characterized in that: In S5, the peanut planting depth is 2 cm to 8 cm; The first topdressing is performed when the peanuts grow to 35-40 days, and the second topdressing is performed when the peanuts grow to 60-65 days.

10. The method for improving saline-alkali land based on peanut planting according to claim 1, characterized in that: In S4, organic fertilizer is made 2 to 3 weeks before deep plowing and deep loosening. During the deep plowing and deep loosening process, the organic fertilizer, phosphate fertilizer and potassium fertilizer made in S3 are mixed and applied to the soil. The organic fertilizer made in S3 is used in an amount of 3000 to 4000 kg per mu, the phosphate fertilizer can be compound phosphate fertilizer or phosphate rock fertilizer, with an amount of 30 to 50 kg per mu, and the potassium fertilizer can be potassium chloride or potassium sulfate, with an amount of 30 to 50 kg per mu.