Wind erosion prevention and control method for multiple cropping of peanuts and pasture in sand land

Abstract

The invention relates to a sand land peanut pasture multiple cropping wind erosion prevention and control method, and belongs to the technical field of sand land wind erosion prevention and control. Through sand land organic matter improvement, peanut variety selection and peanut vertical seedling whole plant rapid mechanical harvesting, the peanut planting production land utilization time is effectively regulated and controlled, and the harvesting biological yield is maximized; according to the pasture multiple cropping sand land treatment method after peanut land harvesting, the green coverage rate can reach 80%-90% in winter and spring slack seasons, due to the fact that sowing is conducted through the pasture multiple cropping wind erosion prevention and control method for the peanuts in the sand land, the surface wind erosion degree of the sand land in the whole spring is zero, and the wind erosion problem of planting of the peanuts in the sand land is effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of wind erosion prevention and control in sandy land, and in particular to a method for preventing and controlling wind erosion in sandy land by multiple cropping of peanuts and forage grasses. Background Art

[0002] The surface of the peanut-growing farmland in the Horqin Sandy Land, Zhangwu area, and monsoon area is exposed and seriously eroded by wind in winter and spring. This technology can not only ensure the safe production of peanuts in the sandy land, but also effectively prevent and control wind erosion in the sandy farmland in winter and spring. The win-win situation of economic and ecological benefits and the improvement of the ecological stability of the farmland ecosystem are important technical innovations in the battle to eliminate the Horqin Sandy Land.

[0003] At present, some areas are seriously desertified. Take the Hulun Lake Basin as an example. There are 33,300 km2 of grassland in the Hulun Lake Basin, accounting for 80.13% of its total area. The grassland ecosystem has important ecological functions such as water and soil conservation, wind and sand fixation, and biodiversity maintenance. At the same time, it provides grassland resources for animal husbandry. According to remote sensing image analysis in 2013, the grassland in the Hulun Lake Basin has degraded by 20,300 km2, accounting for 60.73% of the grassland area in the lake area, and the desertified grassland area is 15.53 million mu. In addition to the continuous drought in the Hulun Lake Basin and overgrazing along the lake coast, the wetland area is shrinking and biodiversity is continuously decreasing.

[0004] For example, a Chinese patent with an application date of 2011.08.12 and an application number of 201110233140.X discloses a method for retaining water in sandy land. The invention belongs to the field of sandy land management, and is specifically a method for retaining water in sandy land, which comprises leveling the sandy land; crushing paleo-Mesozoic sedimentary rocks; spreading the crushed sedimentary rocks on the surface of the sandy land; and fully mixing the paleo-Mesozoic sedimentary rocks and sand by mechanical rotary tillage to obtain a 30 cm thick composite layer of paleo-Mesozoic sedimentary rocks and sand, wherein the volume ratio of the paleo-Mesozoic sedimentary rocks to the sand in the 30 cm thick composite layer is 1:(1-5). The sandy soil obtained by the sandy land water retention method of the present invention after the sedimentary rocks and sand are mixed has good permeability and water retention, and its physical and chemical properties are equivalent to those of soil, so that the yield of crops planted in the managed sandy land can reach the yield of the same crops planted on ordinary land.

[0005] One of the common technologies in sandy areas is to transport loess to cover the sand, forming a loess layer of about 30 cm and then planting. This method has a strong ability to retain water in the land, but the cost of this technology transformation is about 1,000 yuan / mu, which is much higher than the transformation cost of 100-200 yuan / mu in the application, and the soil fertility is obviously insufficient, and it is easy to generate dust, which is not competitive; the second common technology in sandy areas is to level the land and leave it for half a year to two years, apply 1-3 tons / mu of farmyard manure and then plow it, and use humic acid compound fertilizer as a conventional fertilizer to plant leguminous plants for 3-5 years before converting it into sandy loam. However, there are also problems such as easy separation of coarse and fine particles, poor wind erosion resistance, high cost (mainly because humic acid compound fertilizer is an expensive industrial product), long transformation time, and it is also not competitive.

[0006] In order to protect land resources like the Hulun Lake Basin, the national and local governments have invested a lot of manpower and material resources to implement grazing bans, grass-livestock balance, fencing and afforestation in key areas, which has improved these desertified areas to a considerable extent. However, there are problems in the management of desertified grasslands, such as single means, arbitrary methods, unsuitable sand control varieties, slow effects, poor sustainability, and no normative standards for sand control. Grazing bans and grass-livestock balance have not achieved the expected results, and grassland degradation and desertification are still continuing. Therefore, a method for preventing and controlling wind erosion by replanting peanut forage in sandy land is urgently needed. Summary of the invention

[0007] The present invention aims to solve the above technical problems and provide a method for preventing and controlling wind erosion by multiple cropping of peanuts and forage grasses in sandy land.

[0008] In order to solve the above technical problems, the technical solution provided by the present invention is: A method for preventing and controlling wind erosion by replanting peanuts and forage grasses on sandy land comprises the following steps: S1. Improvement of organic matter in sandy land: By diverting water to pull sand, the force of water is used to flatten sand dunes and turn them into fertile fields. By diverting flood water for irrigation, water is stored and silt is retained to improve the soil. By increasing the application of decomposed livestock manure or peanut-specific fertilizer, the production performance of peanut planting soil in sandy land can be quickly improved. S2. Peanut variety selection: Choose white sand peanuts or four red peanuts with a short growing period. The peanut seeds should be full, have good skin color, high uniformity, clear texture and uniform size.

[0009] S3. Peanut planting: The peanut sowing period is completed from May 25 to 30 every year, and shallow buried drip irrigation water-saving technology is used for intermediate water and fertilizer management; S4. Rapid mechanized harvesting of whole peanut seedlings: The autumn harvest is completed before September 25 each year. The whole plant is harvested quickly and mechanized by standing seedlings. The fields are broken up into pieces and weed roots are removed. Fertilizers and algae crust clay are spread. After harvest, the peanut seedlings and fruits are promptly transported from the fields to the drying yard for drying. S5, planting forage grass; For double-cropping of forage grass, sowing should be completed before September 30, with a row spacing of 20-25CM. Irrigate in time after sowing, seedlings will emerge after three days, and all seedlings will be together after five days. Plant height will be 20CM-30CM in winter, and the surface coverage will be 50%-90%. It will turn green on March 20 in spring.

[0010] Preferably, the flood diversion irrigation is to divert river water for irrigation to improve soil quality, ditches are dug on the leeward side of the moving sand dunes to divert water so that the sand particles moving forward fall into the ditch and are then washed away with water, or water is used to irrigate the sand at the edge of the oasis to prevent the quicksand from moving forward.

[0011] Preferably, the mobile sand surface of the sandy ground is built with one or more combinations of weeds, straw, clay, stones or pebbles to form a square sand barrier with a ridge height of about 100-200 mm and an area of ​​about 0.5-1.5 m2.

[0012] Preferably, the soil blocks of the field are broken up by deep plowing with an animal-powered plow or a tractor to ensure that the soil is fine and uniform.

[0013] Preferably, the algae crust clay is prepared by placing filamentous sheathed Microcoelenthusiae in a liquid culture medium, culturing with aeration to obtain a sheathed Microcoelenthusiae culture, then breaking it to obtain a uniform algae slurry, breaking and grinding clay particles, and mixing the clay particles and the algae slurry to obtain the algae crust clay.

[0014] Preferably, the algae crust clay is based on the dry weight of algae in the algae slurry, and 300-700 times of clay particles are weighed and mixed.

[0015] Preferably, the clay particles are crushed and ground to a particle size of 10 to 50 μm.

[0016] Preferably, the forage grass seeds are soaked in warm water at 35-45°C for 10-12 hours, treated in a high-voltage electric field with a strength of 20-35 mA / cm² for 10-15 minutes with water as the medium, then taken out and placed in an environment of 20°C-25°C for germination, and after the seeds turn white, placed in a cool and dry place for 4 hours to germinate.

[0017] After adopting the above method, the present invention has the following advantages: The sandy land peanut forage multiple planting wind erosion prevention and control method provided by the invention is used for sowing, and the method has strong adaptability, fast, uniform and strong germination, and crisscrossing fibrous roots, so that when the plants grow into mature plants after sowing, the green coverage rate can reach 80%-90%.

[0018] The sandy land management method provided by the present invention includes the sandy land peanut and forage multiple planting wind erosion control method provided by the present invention for sowing, so that the surface wind erosion degree of the sandy land is zero throughout the spring, effectively solving the wind erosion problem of sandy land peanut planting.

[0019] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a flow chart of the present invention. DETAILED DESCRIPTION

[0022] Specific embodiments of the present invention will now be mentioned in detail. Although the present invention is described in conjunction with these specific embodiments, it should be appreciated that it is not intended to limit the present invention to these specific embodiments. On the contrary, these embodiments are intended to cover substitutions, changes or equivalent embodiments that may be included in the spirit and scope of the invention defined by the claims. In the following description, a large number of specific details are set forth in order to provide a comprehensive understanding of the present invention. The present invention can be implemented without some or all of these specific details. In other cases, in order not to make the present invention unnecessarily obscure, well-known process operations are not described in detail.

[0023] When used in conjunction with "including," "methods comprising," or similar language in this specification and the appended claims, the singular forms "a," "an," and "the" include plural references unless the context clearly dictates otherwise. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

[0024] The present invention is further described in detail below in conjunction with the full text.

[0025] Combined with Figure 1 , a method for preventing and controlling wind erosion by replanting peanuts and forage grasses on sandy land, comprising the following steps: S1. Improvement of organic matter in sandy land: By diverting water to pull sand, the force of water is used to flatten sand dunes and turn them into fertile fields. By diverting flood water for irrigation, water is stored and silt is retained to improve the soil. By increasing the application of decomposed livestock manure or peanut-specific fertilizer, the production performance of peanut planting soil in sandy land can be quickly improved. S2. Peanut variety selection: Choose white sand peanuts or four red peanuts with a short growing period. The peanut seeds should be full, have good skin color, high uniformity, clear texture and uniform size.

[0026] S3. Peanut planting: The peanut sowing period is completed from May 25 to 30 every year, and shallow buried drip irrigation water-saving technology is used for intermediate water and fertilizer management; S4. Rapid mechanized harvesting of whole peanut seedlings: The autumn harvest is completed before September 25 each year. The whole plant is harvested quickly and mechanized by standing seedlings. The fields are broken up into pieces and weed roots are removed. Fertilizers and algae crust clay are spread. After harvest, the peanut seedlings and fruits are promptly transported from the fields to the drying yard for drying. S5, planting forage grass; For double-cropping of forage grass, sowing should be completed before September 30, with a row spacing of 20-25CM. Irrigate in time after sowing, seedlings will emerge after three days, and all seedlings will be together after five days. Plant height will be 20CM-30CM in winter, and the surface coverage will be 50%-90%. It will turn green on March 20 in spring.

[0027] The flood diversion irrigation is to divert river water for irrigation to improve soil quality, ditches are dug on the leeward side of the moving sand dunes to divert water, so that the sand particles moving forward fall into the ditch and are then washed away with water, or water is used to irrigate the sand at the edge of the oasis to prevent the quicksand from moving forward.

[0028] The mobile sand surface of the sandy ground is built into a square sand barrier with a ridge height of about 100-200mm and an area of ​​about 0.5-1.5㎡ using one or more combinations of weeds, straw, clay, stones or pebbles.

[0029] The field is deep-ploughed with an animal-powered plow or a tractor to break up soil clods, ensuring that the soil is fine and uniform.

[0030] The algae crust clay is prepared by placing filamentous sheathed Microcoelenthusiae in a liquid culture medium, culturing with aeration to obtain a sheathed Microcoelenthusiae culture, then breaking it to obtain a uniform algae slurry, breaking and grinding clay particles, and mixing the clay particles and the algae slurry to obtain the algae crust clay.

[0031] The algae crust clay is based on the dry weight of algae in the algae slurry, and 300-700 times of clay particles are weighed and mixed, which can improve the stability of the soil and fix nutrients such as carbon and nitrogen.

[0032] The clay particles are crushed and ground to a particle size of 10 to 50 μm.

[0033] When the present invention is implemented, a flat area should be selected as much as possible. A wide and flat area is more suitable for forage grass planting and can support the nutritional needs of dense growth and multi-season growth of forage grass. Deep plowing is generally performed, and the depth is generally not less than 20 cm, preferably 20-25 cm. Use an animal-powered plow or a tractor for deep plowing to ensure that the soil is fine and uniform. Then harrow the land to break up the compaction, rake up the soil clods, rake off the weed roots and stems, and eliminate the weeds.

[0034] Field management of forage: Fertilization: Apply phosphorus and potassium fertilizers as base fertilizers to provide sufficient nutrients.

[0035] Irrigation: According to local climate conditions, timely irrigation is carried out to ensure soil moisture and promote grass growth.

[0036] Weed control: Remove weeds regularly to prevent overgrowth that affects forage yield and quality.

[0037] pH: Forage grass grows best in neutral to slightly acidic soil (pH 6.0-7.0). Too high or too low soil pH may affect the growth and nutrient absorption of forage grass.

[0038] Light and climate conditions: Forage grass planting sites should be selected in places with sufficient light to meet the light conditions required for its growth. Climate conditions also need to be suitable to avoid extreme temperature and humidity conditions that have an adverse effect on forage grass growth.

[0039] Forage grass is winter rye, a variety introduced from Russia. Soak the forage grass seeds in 40℃ warm water for 10-12 hours, treat them in a high-voltage electric field with a strength of 30 mA / cm² with water as the medium for 20 minutes, then take them out and place them in an environment of 20℃-25℃ for germination. After the seeds turn white, place them in a cool and dry place for 6 hours to germinate.

[0040] Embodiment 1: A method for preventing and controlling wind erosion by replanting peanuts and forage grasses on sandy land comprises the following steps: S1. Improve the sandy ground: By diverting water to pull sand, the force of water is used to flatten the sand dunes and turn them into fertile fields. Flood diversion irrigation is used, which is to divert river water for irrigation to improve soil quality. Ditches are dug on the leeward side of the moving sand dunes to divert water so that the sand particles moving forward fall into the ditch and are then washed away with water. Alternatively, water is used to irrigate the sand at the edge of the oasis to prevent the moving sand from moving forward, store water and retain silt, and improve the soil. The surface of the moving sand on the sandy ground is covered with one or more of weeds, straw, clay, stones or pebbles to form a square sand barrier with a height of about 100 mm and an area of ​​about 0.5 m2. By increasing the application of decomposed livestock manure or peanut-specific fertilizer, the production performance of the sandy land peanut planting soil can be quickly improved; S2. Peanut variety selection: Choose white sand peanuts with a short growing period. The peanut seeds should have full grains, good skin color, high uniformity, clear texture and uniform size.

[0041] S3. Peanut planting: The peanut sowing period was completed on May 25, and shallow buried drip irrigation water-saving technology was used for intermediate water and fertilizer management S4. Land preparation: The autumn harvest is completed on September 20th every year. The whole plant is harvested quickly and mechanized by standing seedlings. The fields are broken into soil blocks and weed roots are removed. Fertilizers and algae crust clay are spread. The fields are broken into soil blocks by deep plowing with animal-powered plows or tractors to ensure that the soil is fine and uniform. Algae crust clay is made by placing filamentous sheathed Microcoelenthal in liquid culture medium, aerating and cultivating, obtaining sheathed Microcoelenthal culture, and then breaking it to obtain uniform algae slurry. The clay particles are broken and ground to a particle size of 10μm. The algae crust clay is based on the dry weight of algae in the algae slurry, and 300 times the clay particles are weighed and mixed. The clay particles and algae slurry are mixed to obtain algae crust clay.

[0042] S5, planting forage grass; The forage grass seeds were soaked in 35°C warm water for 10 hours, treated in a high-voltage electric field with a strength of 20 mA / cm² with water as the medium for 10 minutes, then taken out and placed in a 20°C environment for germination. After the seeds turned white, they were placed in a cool and dry place for 4 hours to temper the germination, and then replanted with forage grass. The sowing was completed on September 28, with a row spacing of 20CM. Irrigation was carried out in time after sowing, and the seedlings emerged after three days, and the seedlings were even after 5 days. The plant height was 20CMM in winter, the surface coverage was 80%, and the spring turned green on March 20.

[0043] Embodiment 2: A method for preventing and controlling wind erosion by replanting peanuts and forage grasses on sandy land comprises the following steps: S1. Improve the sandy ground: By diverting water to pull sand, the force of water is used to flatten the sand dunes and turn them into fertile fields. Flood diversion irrigation is used, which is to divert river water for irrigation to improve soil quality. Ditches are dug on the leeward side of the moving sand dunes to divert water so that the sand particles moving forward fall into the ditch and are then washed away with water. Alternatively, water is used to irrigate the sand at the edge of the oasis to prevent the moving sand from moving forward, store water and retain silt, and improve the soil. The surface of the moving sand on the sandy ground is covered with one or more of weeds, straw, clay, stones or pebbles to form a square sand barrier with a height of about 200 mm and an area of ​​about 1.5 m2. By increasing the application of decomposed livestock manure or peanut-specific fertilizer, the production performance of the sandy peanut planting soil can be quickly improved. S2. Peanut variety selection: Choose the four-grain red peanuts with a short growing period. The peanut seeds should be full in grains, good in skin color, high in uniformity, clear in texture and uniform in size.

[0044] S3. Peanut planting: The peanut planting period is completed on May 28th every year, and shallow buried drip irrigation water-saving technology is used for intermediate water and fertilizer management; S4. Land preparation: The autumn harvest is completed on September 20th every year. The whole plant is harvested quickly and mechanized by standing seedlings. The fields are broken into soil blocks and weed roots are removed. Fertilizers and algae crust clay are spread. The fields are broken into soil blocks by deep plowing with animal-powered plows or tractors to ensure that the soil is fine and uniform. Algae crust clay is made by placing filamentous sheathed Microcoelenthal in liquid culture medium, aerating and cultivating, obtaining sheathed Microcoelenthal culture, and then breaking it to obtain uniform algae slurry. The clay particles are broken and ground to a particle size of 50μm. The algae crust clay is based on the dry weight of algae in the algae slurry, and 700 times the clay particles are weighed and mixed. The clay particles and algae slurry are mixed to obtain algae crust clay.

[0045] S5, planting forage grass; The forage grass seeds were soaked in 45°C warm water for 12 hours, treated in a high-voltage electric field with a strength of 35 mA / cm² for 15 minutes with water as the medium, then taken out and placed in a 25°C environment for germination. After the seeds turned white, they were placed in a cool and dry place for 4 hours to temper the germination, and then the forage grass was replanted. The sowing was completed on September 28, with a row spacing of 25CM. Irrigation was carried out in time after sowing, and the seedlings emerged after three days, and the seedlings were even after 5 days. The plant height was 30CM in winter, the surface coverage was 89%, and the spring turned green on March 20.

[0046] Embodiment three: A method for preventing and controlling wind erosion by replanting peanuts and forage grasses on sandy land comprises the following steps: S1. Improve the sandy ground: By diverting water to pull sand, the force of water is used to flatten the sand dunes and turn them into fertile fields. Flood diversion irrigation is used, which is to divert river water for irrigation to improve soil quality. Ditches are dug on the leeward side of the moving sand dunes to divert water so that the sand particles moving forward fall into the ditch and are then washed away with water. Alternatively, water is used to irrigate the sand at the edge of the oasis to prevent the moving sand from moving forward, store water and retain silt, and improve the soil. The surface of the moving sand on the sandy ground is built into a square sand barrier with a height of about 150 mm and an area of ​​about 1 m2 with one or more combinations of weeds, straw, clay, stones or pebbles. By increasing the application of decomposed livestock manure or peanut-specific fertilizer, the production performance of the sandy land peanut planting soil can be quickly improved; S2. Peanut variety selection: Choose the four-grain red peanuts with a short growing period. The peanut seeds should be full in grains, good in skin color, high in uniformity, clear in texture and uniform in size.

[0047] S3. Peanut planting: The peanut planting period is completed on May 22 every year, and shallow buried drip irrigation water-saving technology is used for intermediate water and fertilizer management; S4. Land preparation: The autumn harvest is completed on September 21 every year. The whole plant is harvested quickly and mechanized by standing seedlings. The fields are broken into soil blocks and weed roots are removed. Fertilizers and algae crust clay are spread. The fields are broken into soil blocks by deep plowing with animal-powered plows or tractors to ensure that the soil is fine and uniform. Algae crust clay is made by placing filamentous sheathed Microcoelenthal in liquid culture medium, aerating and cultivating, obtaining sheathed Microcoelenthal culture, and then breaking it to obtain uniform algae slurry. The clay particles are broken and ground to a particle size of 20μm. The algae crust clay is based on the dry weight of algae in the algae slurry, and 500 times the clay particles are weighed and mixed. The clay particles and algae slurry are mixed to obtain algae crust clay.

[0048] S5, planting forage grass; The forage grass seeds were soaked in 40°C warm water for 11 hours, treated in a high-voltage electric field with a strength of 30 mA / cm² for 12 minutes with water as the medium, then taken out and placed in a 25°C environment for germination. After the seeds turned white, they were placed in a cool and dry place for 4 hours to temper the germination, and then replanted with forage grass. The sowing was completed on September 28, with a row spacing of 22CM. Irrigation was carried out in time after sowing, and the seedlings emerged after three days, and the seedlings were even after 5 days. The plant height was 22CM in winter, the surface coverage was 86%, and the spring turned green on March 20.

[0049] Embodiment 4: A method for preventing and controlling wind erosion by replanting peanuts and forage grasses on sandy land comprises the following steps: S1. Improve the sandy ground: By diverting water to pull sand, the force of water is used to flatten the sand dunes and turn them into fertile fields. Flood diversion irrigation is used, which is to divert river water for irrigation to improve soil quality. Ditches are dug on the leeward side of the moving sand dunes to divert water so that the sand particles moving forward fall into the ditch and are then washed away with water. Alternatively, water is used to irrigate the sand at the edge of the oasis to prevent the moving sand from moving forward, store water and retain silt, and improve the soil. The surface of the moving sand on the sandy ground is covered with one or more of weeds, straw, clay, stones or pebbles to form a square sand barrier with a height of about 120 mm and an area of ​​about 1.2 m2. By increasing the application of decomposed livestock manure or peanut-specific fertilizer, the production performance of the sandy land peanut planting soil can be quickly improved; S2. Peanut variety selection: Choose four red peanuts with a short growing period. The peanut seeds should be full, have good skin color, high uniformity, clear texture and uniform size.

[0050] S3. Peanut planting: The peanut planting period is completed on May 26th every year, and shallow buried drip irrigation water-saving technology is used for intermediate water and fertilizer management; S4. Land preparation: The autumn harvest is completed on September 24th every year. The whole plant is harvested quickly and mechanized by standing seedlings. The fields are broken into soil blocks and weed roots are removed. Fertilizers and algae crust clay are spread. The fields are broken into soil blocks by deep plowing with animal-powered plows or tractors to ensure that the soil is fine and uniform. Algae crust clay is made by placing filamentous sheathed Microcoelenthal in liquid culture medium, aerating and cultivating, obtaining sheathed Microcoelenthal culture, and then breaking it to obtain uniform algae slurry. The clay particles are broken and ground to a particle size of 40μm. The algae crust clay is based on the dry weight of algae in the algae slurry, and 650 times the clay particles are weighed and mixed. The clay particles and algae slurry are mixed to obtain algae crust clay.

[0051] S5, planting forage grass; The forage grass seeds were soaked in 38°C warm water for 10 hours, treated in a high-voltage electric field with a strength of 32 mA / cm² for 12 minutes with water as the medium, then taken out and placed in a 22°C environment for germination. After the seeds turned white, they were placed in a cool and dry place for 4 hours to temper the germination, and then the forage grass was replanted. The sowing was completed on September 28, with a row spacing of 23CM. Irrigation was carried out in time after sowing, and the seedlings emerged after three days, and the seedlings were all in place after 5 days. The plant height was 28CM in winter, the surface coverage was 87%, and the spring turned green on March 20.

[0052] Experimental example: According to the sandy land peanut and forage intercropping wind erosion control method provided in Example 1, Example 2, Example 3 and Example 4, sowing was performed, and the plant growth conditions were recorded in Table 1.

[0053] Table 1 Plant growth and vegetation coverage of each embodiment Plant height (CM) Root depth into soil (cm) Root diameter (cm) Coverage (%) Embodiment 1 20 34 1.2 80 Embodiment 2 30 32 1.0 89 Embodiment 3 22 38 1.1 86 Embodiment 4 28 35 1.2 87 In summary, the sandy land peanut forage multiple planting wind erosion prevention and control method provided by the present invention is sown, and has the characteristics of high temperature resistance, waterlogging resistance, drought resistance, cold resistance, and resistance to sandy soil coverage. It has strong adaptability, fast, uniform, and strong seedlings, and fibrous roots are vertical and horizontal, which can make the green coverage rate reach 80%-90% when the plants grow into mature plants after sowing. The sandy land management method provided by the present invention, because it includes the sandy land peanut forage multiple planting wind erosion prevention and control method provided by the present invention for sowing, the vegetation coverage rate at the wind erosion pit reaches 80%-90%, which can promote the effective management of the sandy land.

[0054] The present invention and its embodiments are described above, and such description is not restrictive. What is shown in the full text is only one of the embodiments 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 preventing and controlling wind erosion by multiple cropping of peanuts and forage in sandy land, characterized in that: The following steps are involved: S1. Improvement of organic matter in sandy land: By diverting water to pull sand, the force of water is used to flatten sand dunes and turn them into fertile fields. By diverting flood water for irrigation, water is stored and silt is retained to improve the soil. By increasing the application of decomposed livestock manure or peanut-specific fertilizer, the production performance of peanut planting soil in sandy land can be quickly improved. S2. Peanut variety selection: Choose white sand peanuts or four red peanuts with a short growing period. The peanut seeds should be full, have good skin color, high uniformity, clear texture and uniform size. 2.S3, Peanut Planting: The peanut sowing period is completed from May 25 to 30 every year, and shallow buried drip irrigation water-saving technology is used for intermediate water and fertilizer management; S4. Rapid mechanized harvesting of whole peanut seedlings: The autumn harvest is completed before September 25 each year. The whole plant is harvested quickly and mechanized by standing seedlings. The fields are broken up into pieces and weed roots are removed. Fertilizers and algae crust clay are spread. After harvest, the peanut seedlings and fruits are promptly transported from the fields to the drying yard for drying. S5, planting forage grass; For double-cropping of forage grass, sowing should be completed before September 30, with a row spacing of 20-25CM. Irrigate in time after sowing, seedlings will emerge after three days, and all seedlings will be together after five days. Plant height will be 20CM-30CM in winter, and the surface coverage will be 50%-90%. It will turn green on March 20 in spring.

3. A method for preventing and controlling wind erosion by multiple cropping of peanuts and forage grasses in sandy land according to claim 1, characterized in that: The flood diversion irrigation is to divert river water for irrigation to improve soil quality, ditches are dug on the leeward side of the moving sand dunes to divert water, so that the sand particles moving forward fall into the ditch and are then washed away with water, or water is used to irrigate the sand at the edge of the oasis to prevent the quicksand from moving forward.

4. A method for preventing and controlling wind erosion by multiple cropping of peanuts and forage grasses in sandy land according to claim 1, characterized in that: The mobile sand surface of the sandy ground is built into a square sand barrier with a ridge height of about 100-200mm and an area of ​​about 0.5-1.5㎡ using one or more combinations of weeds, straw, clay, stones or pebbles.

5. The method for preventing and controlling wind erosion by multiple cropping of peanuts and forage grasses in sandy land according to claim 1, characterized in that: In the step S4, the field is deep-ploughed using an animal-powered plow or a tractor to break up the soil clods, ensuring that the soil is fine and uniform.

6. A method for preventing and controlling wind erosion by multiple planting of peanuts and forage grasses in sandy land according to claim 1, characterized in that: The algae crust clay is prepared by placing filamentous sheathed Microcoelenthusiae in a liquid culture medium, culturing with aeration to obtain a sheathed Microcoelenthusiae culture, then breaking it to obtain a uniform algae slurry, breaking and grinding clay particles, and mixing the clay particles and the algae slurry to obtain the algae crust clay.

7. A method for preventing and controlling wind erosion by multiple planting of peanuts and forage grasses in sandy land according to claim 5, characterized in that: The algae crust clay is based on the dry weight of algae in the algae slurry, and 300-700 times of clay particles are weighed and mixed.

8. The method for preventing and controlling wind erosion by multiple planting of peanuts and forage grasses in sandy land according to claim 5, characterized in that: The clay particles are crushed and ground to a particle size of 10 to 50 μm.

9. A method for preventing and controlling wind erosion by multiple planting of peanuts and forage grasses in sandy land according to claim 1, characterized in that: The forage grass seeds are soaked in warm water at 35-45°C for 10-12 hours, treated in a high-voltage electric field with a strength of 20-35 mA / cm² with water as the medium for 10-15 minutes, then taken out and placed in an environment of 20°C-25°C for germination, and after the seeds turn white, placed in a cool and dry place for 4 hours to temper the germination.

Images