Ecological planting and breeding mode and method for symbiosis of bananas and earthworms

Abstract

The invention belongs to the technical field of banana planting methods, discloses an ecological planting and breeding mode and method for symbiosis of bananas and earthworms, and particularly discloses a planting method for the bananas and the earthworms, and the method is carried out based on the ecological planting and breeding mode for the symbiosis of the bananas and the earthworms. According to the banana and earthworm combined planting method, idle land space under banana trees is fully utilized, soil physical and chemical properties of a banana land can be improved, the yield of the banana trees can be increased, fruit quality can be improved, meanwhile, high-density earthworm breeding is carried out, economic benefits of earthworm breeding are brought, the overall income of banana planting is increased, and the economic benefit of banana planting is increased. A banana and earthworm planting and breeding combined mode is developed, and technical reference is provided for research and application of a circular agriculture mode with earthworms as a chain.

Description

Technical Field

[0001] The invention belongs to the technical field of banana planting methods, and particularly relates to an ecological planting and breeding model and method for symbiotic bananas and earthworms. Background Art

[0002] Banana is one of the four major fruits in southern China. It is a plant of the genus Musa in the Musaceae family. It is rich in a variety of trace elements, vitamins and other nutrients and is very popular among people. China is the world's third largest banana producer. The banana industry plays an increasingly important role in the economic and rural social development of tropical areas. Bananas generally grow in a hot and humid environment and should be avoided as much as possible from direct contact with frost and snow. Therefore, China's banana planting areas are distributed in tropical and subtropical areas in China.

[0003] Unlike other fruit trees, the stems are all coarse fibers, the wood is hard, and there are annual rings. They are perennial plants without a fixed phenological period. As long as the banana tree grows to a certain extent, it can differentiate flower buds, bud and bear fruit. The banana tree has very obvious characteristics of herbaceous plants. The stems are soft, the wood is underdeveloped, the support is weak, and it is full of mucus. The juice is particularly rich and very soft. It can be peeled off layer by layer like an onion. But unlike herbaceous plants, the vascular bundle does not have a cambium and cannot grow continuously. In order to produce delicious bananas every year, bananas must be cut off after harvesting every year to ensure the smooth growth of new seedlings on the tubers. The number of banana leaves is huge, about 2 to 4 times the amount of fruit. The cut stems and leaves are discarded in the fields, occupying a lot of land, causing various pollutions to the soil, rivers, and groundwater, and breeding diseases and pests. At the same time, because banana farmers often blindly apply a large amount of chemical fertilizers based on experience and lightly apply organic fertilizers, the soil in banana gardens is generally acidic. The decrease in pH causes the loss of a large number of nutrients, resulting in a decrease in soil fertility and further impoverishment of the soil, which not only makes the soil prone to compaction, but also increases the probability of diseases and pests in banana gardens. Banana stems and leaves have the advantages of large biomass, year-round harvesting, and concentrated planting areas and harvesting periods. In addition to containing a large amount of water, banana leaves are also rich in nutrients such as amino acids, vitamins, and fiber. They are an excellent feed for livestock and poultry. Therefore, how to solve the waste after banana picking, make full use of the space under the forest, regulate the loose soil structure, balance nutrients, and turn waste into treasure and recycle it has always been worthy of attention.

[0004] Earthworms are large soil animals, and their biomass accounts for 60% of the total soil animal biomass. Earthworms are known as "Earth Ecosystem Engineers" because of their many functions, such as accelerating soil formation, promoting soil-fertilizer compatibility, and participating in soil nutrient cycles. Biologist Darwin once said that there is no fertile soil in nature except earthworm castings. Earthworm castings contain beneficial bacteria in the amount of up to 200,000 to 200 million per gram, which is the real "golden soil" that can combine organic matter, microorganisms and crop growth, thereby improving the soil environment. Earthworm castings have uniform particles, strong water-retaining and air-permeable properties, and can also accelerate the formation of soil aggregate structure, and can fundamentally solve the problem of soil compaction, improve soil permeability, water retention and fertilizer retention, which is conducive to the reproduction of microorganisms and can enhance the storage capacity of soil nutrients.

[0005] Although there are many studies on intercropping banana trees with other crops to improve sunlight and land utilization, the existing technology does not disclose methods for intercropping soil animals and bananas to achieve high-density earthworm farming and high-yield banana harvests. There is a need to supplement and improve the relevant gaps in this field. Summary of the invention

[0006] The purpose of the first aspect of the present invention is to provide an ecological breeding model and method for the symbiosis of bananas and earthworms.

[0007] The purpose of the second aspect of the present invention is to provide the application of the method of the first aspect of the present invention in fruit and vegetable planting or improving the quality of bananas.

[0008] In order to achieve the above object, the technical solution adopted by the present invention is:

[0009] A first aspect of the present invention provides a method for planting bananas in combination with earthworms, the method being carried out under an ecological planting and breeding mode of symbiosis between bananas and earthworms, the method comprising the following steps:

[0010] (1) Land pretreatment: The banana field is raised on the ridges, deep trapezoidal trenches are dug between the ridges, a circular trench is dug around the banana field, the ridge surface is connected to the circular trench, and banana plants are planted on the ridge surface;

[0011] (2) Construction of earthworm bed: The culture base material is piled at the bottom of the inverted trapezoidal deep ditch, and holes are dug on the slopes on both sides, and the culture base material is placed, and the soil is covered and filled to obtain a three-dimensional earthworm culture bed;

[0012] (3) Earthworm preparation: Place earthworms in the three-dimensional earthworm breeding bed and control the soil moisture in the banana field;

[0013] (4) Field management: Apply topdressing during the banana leaflet stage, before and after budding, and during the small fruit stage; during the vigorous growth period, there is a shallow layer of water in the ditch and weeds are cleared; the soil pH value is adjusted.

[0014] Choose healthy and vigorous Guangdilong as seed earthworms. The seed earthworms to be released should be pre-treated in the adjacent land, and after one month of breeding, the seed earthworms should be transferred and released into the banana field in batches.

[0015] The present invention can give full play to the role of earthworms in activating nutrients and fertilizing the soil, and significantly promote crop growth and increase crop yields. Compared with traditional planting, the present invention can greatly reduce the input of chemical fertilizers in the planting process, and improve economic benefits by increasing vegetable yields and producing commercial earthworms.

[0016] In some embodiments of the present invention, the earthworms in step (3) are placed in the three-dimensional earthworm breeding bed at a rate of 100 to 300 kg per mu of banana field.

[0017] In some embodiments of the present invention, the earthworms in step (3) are placed in the three-dimensional earthworm breeding bed at a rate of 100 to 250 kilograms per mu of banana field.

[0018] In some embodiments of the present invention, the earthworms in step (3) are placed in the three-dimensional earthworm breeding bed at a rate of 150 to 200 kg per mu of banana field.

[0019] In some embodiments of the present invention, the width of the bed surface in step (1) is 1 to 4 meters, the vertical depth of the inverted trapezoidal deep ditch is 1 to 2 meters, and the slopes on both sides are 25 to 40 degrees.

[0020] In some embodiments of the present invention, the width of the bed surface in step (1) is 1 to 3 meters, the vertical depth of the inverted trapezoidal deep ditch is 1 to 1.8 meters, and the slopes on both sides are 30 to 40 degrees.

[0021] In some embodiments of the present invention, the width of the bed surface in step (1) is 1 to 3 meters, the vertical depth of the inverted trapezoidal deep ditch is 1 to 1.5 meters, and the slopes on both sides are 30 to 35 degrees.

[0022] In some embodiments of the present invention, the aquaculture substrate in step (2) includes banana waste and livestock and poultry manure waste.

[0023] In some embodiments of the present invention, the stacking thickness of the aquaculture substrate in step (2) is 25 to 60 cm.

[0024] In some embodiments of the present invention, the stacking thickness of the aquaculture substrate in step (2) is 30 to 50 cm.

[0025] The three-dimensional earthworm breeding bed is a three-dimensional feeding structure with upper, middle and lower parts, forming a natural and layered feeding channel, thus realizing a three-dimensional feeding space for earthworm materials.

[0026] In some embodiments of the present invention, the topdressing in step (4) is the addition of phosphorus-potassium compound fertilizer by drench application.

[0027] In some embodiments of the present invention, the soil moisture is controlled at 20% to 30%.

[0028] In some embodiments of the present invention, the soil moisture is controlled at 20% to 25%.

[0029] Monitor the soil pH value regularly with instruments. When the soil is too acidic, sprinkle quicklime on the surface to adjust it. Regularly patrol the garden to observe various pests, including red fire ants, frogs, mice, etc. If found, they should be isolated and sprayed with pesticides to disinfect them. By adjusting the soil pH value and soil moisture, the soil pH value and soil moisture are more conducive to the growth of banana trees, banana trees grow stronger, and the quality of fruits is high. The healthy growth of fruit trees also provides earthworms with suitable temperature, temperature, and shading, ensuring the rapid and healthy growth of earthworms, so that earthworms provide banana trees with sufficient nutrients for growth. Without the use of chemical fertilizers, the fruits produced by fruit trees are more nutritious, do not contain heavy metals, and are sweeter; at the same time, earthworms have a high output and a shorter cycle.

[0030] In some embodiments of the present invention, the method further comprises a harvesting step, comprising harvesting banana fruits first and then harvesting earthworms, and crushing banana leaves and then composting them on site.

[0031] In some embodiments of the present invention, the harvesting of earthworms includes using a sprinkler system to spray for 20 to 26 hours to make the water level in the ditch reach more than 30 centimeters, driving the earthworms to gather on the soil surface, and using a ground dragon instrument to electrocute them. The principle of small amount of time, multiple times and low voltage current is adopted to cyclically harvest the entire earthworm breeding area.

[0032] In some embodiments of the present invention, the banana plants are spaced 2 to 3 meters apart, with 95 to 105 plants planted per acre.

[0033] In some embodiments of the present invention, the land should be selected to be relatively flat, light-proof, well-ventilated, well-drained, with a deep soil layer, strong permeability, rich in humus, loose and fertile, and free of water accumulation, to avoid water accumulation or excessive dryness.

[0034] The planting method of the invention comprises scientific weeding, adjusting soil moisture and fertilizing processes, providing suitable temperature and humidity for earthworms and banana plants, avoiding the influence of water shortage and dryness on the healthy growth of banana plants and earthworms, and ensuring the good growth of banana plants and earthworms; banana plants are planted on a planting platform in the form of a bed surface, the planting platform is higher than the land surface, which is beneficial to soil and water conservation and improves the absorption of nutrients by the roots of banana plants; banana plants are planted with reasonable plant spacing (spacing of compost trenches) and row spacing (spacing of bed surfaces), which is beneficial to the spread and luxuriant growth of banana plants; earthworm trenches are arranged between the rows of banana plants, the oxygen content of soil near the roots of banana plants is improved through the activities of earthworms, and biological nutrients can be provided to banana plants, the banana plants and earthworms complement each other in biological advantages, and a good ecological cycle is formed. Banana plants grow better and fruits are of better quality, earthworms grow faster and produce more biological nutrients, avoiding the use of chemical fertilizers, increasing the content of various trace elements in fruits, and avoiding the pollution of land, banana plants and bananas by heavy metals in chemical fertilizers.

[0035] The second aspect of the present invention provides the use of the method of the first aspect of the present invention in fruit and vegetable planting or improving banana quality.

[0036] In some embodiments of the present invention, the fruits and vegetables include common fruits and vegetables, such as apples, pears, peaches, kiwis, loquats, etc., and vegetables such as cucumbers, tomatoes, Chinese cabbage, rapeseed, bok choy, lettuce, etc.

[0037] In some embodiments of the present invention, improving the quality of bananas includes increasing the content of protein, soluble sugar and vitamin C.

[0038] The beneficial effects of the present invention are:

[0039] The banana and earthworm planting method provided by the present invention makes full use of the idle space under the banana trees, can improve the soil physical and chemical properties of the banana field, promote the yield of banana trees, and improve the quality of fruits. At the same time, high-density earthworm breeding is carried out to bring economic benefits of earthworm breeding and increase the overall income of banana planting. A banana and earthworm breeding combination model is developed to help rural revitalization and development, and provide a technical reference for the research and application of a circular agricultural model with earthworms as a chain.

[0040] Conventional banana planting will cause serious non-point source pollution in the planting industry, soil degradation, high planting costs, high labor costs, and low planting benefits; while the banana combined with earthworm planting technology avoids non-point source pollution in the planting industry, curbs soil degradation, improves the soil, reduces the use of fertilizers, pesticides and other material costs (manufacturing natural organic fertilizers, greatly reducing fertilizer input costs; earthworms contain antibacterial skin and cleansing enzymes that can enhance the fruit trees' own immune function, resist the occurrence of diseases and pests, and greatly reduce the cost of pesticides, etc.), reduces the labor costs of farming and farmland management, increases planting benefits, and the cultured earthworms can be recycled repeatedly to generate huge economic benefits. DETAILED DESCRIPTION

[0041] The present invention is further described in detail below through specific examples.

[0042] It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0043] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be described clearly and completely below. If the specific conditions are not specified in the embodiments, they are carried out according to conventional conditions or conditions recommended by the manufacturer. If the manufacturer of the reagents or instruments used is not specified, they are all conventional products that can be purchased commercially.

[0044] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0045] Example 1

[0046] A method for planting bananas in combination with earthworms, which is based on an ecological planting and breeding model of bananas and earthworms symbiosis, and specifically includes the following steps:

[0047] 1. Site selection and land preparation

[0048] Choose a relatively flat, light-proof, and well-ventilated area as the breeding area. Avoid waterlogging or overly dry areas (places with good drainage and irrigation, deep soil, strong permeability, rich humus, loose and fertile, and no waterlogging). When preparing the land, the ridge surface should be raised. The width of the banana ridge surface is 1.5 to 3 meters. Work on the ridge surface. During the seedling period, the banana plant spacing is 2 meters, and the number of plants per mu is 100. Dig deep trenches between the ridge surfaces, requiring the formation of an inverted trapezoid, with a vertical depth of 1.5 meters and a slope of 30 degrees on both sides. Dig a ring ditch around each banana field in the banana garden, and the ridge surface is connected to the ring ditch.

[0049] 2. Construction of earthworm bed

[0050] Collect dead branches and leaves, weeds, pruned branches and leaves, and banana waste (such as banana peels, stems, etc.) from the banana garden, crush them, and collect livestock and poultry manure waste (cow dung, sheep dung, rabbit dung, etc.), mix the collected organic waste (i.e., livestock and poultry manure waste and banana waste are mixed in a ratio of 1:1), add appropriate amount of water to adjust to the appropriate humidity (about 60% to 70%), and then pile and ferment. During the fermentation process, the pile needs to be turned regularly (once a week) to ensure that the breeding base material (the fermented material of livestock and poultry manure waste and banana waste) is fully decomposed. The fermentation time is generally 3 to 4 weeks. The soil is plowed at the bottom of the ditch, and the breeding base material is piled to the bottom of the ditch with a thickness of 30 cm. At the same time, holes are dug on the slopes on both sides, and the breeding base material is placed every one meter, and the soil is covered and filled. This upper, middle and lower three-dimensional feeding structure constitutes a natural and layered feeding channel, thereby realizing a three-dimensional feeding space for earthworm materials and obtaining a three-dimensional earthworm breeding bed. Select livestock and poultry manure (including chicken manure, pig manure, cow manure, etc.) for fermentation, add 2000kg of farmyard manure per mu, and mix it thoroughly with banana waste.

[0051] 3. Preparation and placement of earthworms

[0052] Select healthy and vigorous Guangdilong as breeding earthworms. The breeding earthworms to be released must be pre-treated on the adjacent land. After one month of breeding, the breeding earthworms must be transferred and released in batches into the banana field. Spread the fermented breeding substrate on the earthworm bed with a thickness of about 20 cm. Release at dusk or evening, 100 kg per mu. Control the soil temperature and humidity through the groundwater level and field sprinkler or drip irrigation system. When the soil humidity cannot meet the needs of earthworms, sprinkler and drip irrigation measures should be taken for watering. When there is too much water in the soil, the soil humidity should be kept at around 25% through the drainage system.

[0053] 4. Field management

[0054] During the small leaf stage, before and after the budding, and small fruit stage, compound fertilizers such as phosphorus and potassium fertilizers can be used for topdressing (Autel high-nitrogen and high-potassium compound fertilizer, N, nitrogen-phosphorus pentoxide, potassium oxide ratio of 25:10:16, Guangxi Xinyangfeng Fertilizer Co., Ltd.), and fertilizers should be applied by drench and covered with thin soil after application. During the vigorous growth period, a shallow water layer should be maintained in the ditch, and weeds should be cleaned regularly. When weeding, we should try to pull it out by hand, and weeds can be thrown into the ditch for decomposition. Regularly monitor the soil pH value with instruments. When the soil is too acidic, sprinkle quicklime on the surface to adjust it (maintain the pH at 5-6). Regularly patrol the garden to observe various pests, including red fire ants, frogs, mice, etc. If found, they should be isolated and sprayed with pesticides for disinfection.

[0055] 5. Harvest

[0056] After the fruits are ripe, they are harvested first, and the older leaves of the banana trees are cut off and crushed into pieces about 1 cm in size. They are then decomposed on the spot and used as feed for earthworms. When harvesting earthworms, the sprinkler system is used to spray for 24 hours so that the water level in the ditch reaches more than 30 cm, driving the earthworms to gather on the soil surface. The earthworms are then electro-captured with a ground dragon instrument. The principle of multiple times with a small amount of time and low voltage current is adopted to circulate the harvesting of the entire earthworm breeding area. The surface earthworms are manually picked and put into the harvesting device.

[0057] Example 2

[0058] A method for planting bananas in combination with earthworms, which is based on an ecological planting and breeding model of bananas and earthworms symbiosis, and specifically includes the following steps:

[0059] 1. Site selection and land preparation

[0060] Choose a relatively flat, light-proof, and well-ventilated area as the breeding area. Avoid waterlogging or overly dry areas. When preparing the land, the ridge surface should be raised. The width of the banana ridge surface is 1.5 to 3 meters. Work on the ridge surface. The banana plant spacing is 2 meters. The number of bananas planted per mu is 100. Dig deep trenches between the ridge surfaces. It is required to form an inverted trapezoid with a vertical depth of 1.5 meters and a slope of 30 degrees on both sides. Dig a ring ditch around each banana field in the banana garden, and the ridge surface is connected to the ring ditch.

[0061] 2. Construction of earthworm bed

[0062] Collect dead branches and leaves, weeds, pruned branches and leaves, and banana waste (such as banana peels, stems, etc.) from the banana garden, crush them, and collect livestock and poultry manure waste (cow dung, sheep dung, rabbit dung, etc.), mix the collected organic waste (i.e., livestock and poultry manure waste and banana waste are mixed in a ratio of 1:1), add appropriate amount of water to adjust to the appropriate humidity (about 60% to 70%), and then pile and ferment. During the fermentation process, the pile needs to be turned regularly (once a week) to ensure that the breeding base material is fully decomposed. The fermentation time is generally 3 to 4 weeks. The soil is plowed at the bottom of the ditch, and the breeding base material is piled to the bottom of the ditch with a thickness of 30 cm. At the same time, holes are dug on the slopes on both sides, and the breeding base material is placed every one meter, and the soil is covered and filled. This three-dimensional feeding structure of upper, middle and lower constitutes a natural and layered feeding channel, thereby realizing a three-dimensional feeding space for earthworm materials and obtaining a three-dimensional earthworm breeding bed. Choose animal and poultry manure for fermentation, including chicken manure, pig manure, cow manure, etc., add 2000kg of farmyard manure per mu and mix it thoroughly with banana leaf base material.

[0063] 3. Preparation and placement of earthworms

[0064] Select healthy and vigorous Guangdilong as breeding earthworms. The breeding earthworms to be released must be pre-treated on the adjacent land. After one month of breeding, the breeding earthworms must be transferred and released in batches into the banana field. Spread the fermented breeding substrate on the earthworm bed with a thickness of about 20 cm. Release at dusk or evening, 200 kg per mu. Control the soil temperature and humidity through the groundwater level and field sprinkler or drip irrigation system. When the soil humidity cannot meet the needs of earthworms, sprinkler and drip irrigation measures should be adopted for watering. When there is too much water in the soil, the soil humidity should be kept at about 25% through the drainage system.

[0065] 4. Field management

[0066] During the small leaf stage, before and after the budding, and small fruit stage, compound fertilizers such as phosphorus and potassium fertilizers can be used for topdressing (Autel high-nitrogen and high-potassium compound fertilizer, N, nitrogen-phosphorus pentoxide, potassium oxide ratio of 25:10:16, Guangxi Xinyangfeng Fertilizer Co., Ltd.), and fertilizers should be applied by drench and covered with thin soil after application. During the vigorous growth period, a shallow water layer should be maintained in the ditch, and weeds should be cleaned regularly. When weeding, we should try to pull it out by hand, and weeds can be thrown into the ditch for decomposition. Regularly monitor the soil pH value with instruments. When the soil is too acidic, sprinkle quicklime on the surface to adjust it (maintain the pH at 5-6). Regularly patrol the garden to observe various pests, including red fire ants, frogs, mice, etc. If found, they should be isolated and sprayed with pesticides for disinfection.

[0067] 5. Harvest

[0068] After the fruits are ripe, they are harvested first, and the older leaves of the banana trees are cut off and crushed into pieces about 1 cm in size. They are then decomposed on the spot and used as feed for earthworms. When harvesting earthworms, the sprinkler system is used to spray for 24 hours so that the water level in the ditch reaches more than 30 cm, driving the earthworms to gather on the soil surface. The earthworms are then electro-captured with a ground dragon instrument. The principle of multiple times with a small amount of time and low voltage current is adopted to circulate the harvesting of the entire earthworm breeding area. The surface earthworms are manually picked and put into the harvesting device.

[0069] Effect Example

[0070] Bananas were planted using the traditional method (no additional earthworms were introduced during the planting process). Before planting, the land was plowed, 2000 kg of farmyard manure was added per mu, and the ridge surface was raised during land preparation. The banana ridge surface width was 1.5 to 3 meters, and work was done on the ridge surface. The banana plant spacing was 2 meters, and the number of plants planted per mu was 100. Deep trenches were dug between the ridge surfaces, requiring the formation of an inverted trapezoid, with a vertical depth of 1.5 meters and a slope of 30 degrees on both sides. A ring ditch was dug around each banana field in the banana garden, and the ridge surface was connected to the ring ditch. Fertilization and pest control were then carried out according to the traditional method. The bananas planted by this method were used as comparative example 1. By comparing the growth shape of bananas, the average per mu yield of bananas in the year, and the quality of banana fruits (the content of protein, soluble sugar and vitamin C in bananas was determined by Coomassie Brilliant Blue G-250 staining, phenol method, and ascorbic acid method, respectively) with Examples 1 to 2, the following data were obtained:

[0071] Table 1 Effects of various embodiments on banana traits and yield

[0072] deal with Plant height / cm Diameter / cm Yield per plant / kg <![CDATA[Total output / t·hm -2 > Comparative Example 1 (Traditional Banana Planting) 135.33 36.69 17.25 12.94 Example 1 164.1 42.57 20.4 15.3 Example 2 195.75 55.08 25 18.75

[0073] Table 2 Effects of various embodiments on banana fruit quality

[0074] deal with <![CDATA[Protein / mg·g -1 > Soluble sugar / % <![CDATA[Vitamin C / mg (100 g) -1 > Comparative Example 1 (Traditional Banana Planting) 1.1 10.8 13 Example 1 1.3 13.6 16 Example 2 1.8 16.6 21

[0075] As can be seen from Table 1, the bananas planted by the methods of Examples 1 to 2, after the participation of Guangdilong cultivation, the plant height increased by 28.77 cm and 60.42 cm, respectively, with an increase of 44.64%, and the diameter increased by 5.88 cm and 18.39 cm, with an increase of 50.12%, which is significantly better than the traditional planting method without cultivating Guangdilong. The average single-plant banana yield was more than 20.4 kg that year, which was higher than the 17.25 kg of traditional technology; the total banana yield per hectare was 15.3 and 18.75 tons, respectively, which was 18.24% and 44.90% higher than the yield without cultivating Guangdilong.

[0076] As shown in Table 2, the content of vitamin C in the bananas obtained by the methods of Examples 1 to 2 increases by 23.07% to 61.5% compared with that of Comparative Example 1. Among them, the content of vitamin C in the bananas obtained by the method of Example 2 is the highest, reaching 21 mg·(100 g). -1. The vitamin C content of bananas in different treatment groups was significantly different, indicating that the introduction of Guangdilong farming had a significant improvement in the vitamin C content of bananas. At the same time, compared with traditional banana planting, the soluble solids content of bananas obtained by the methods of Examples 1 to 2 increased by 25.92% to 53.7%. Among them, the soluble sugar content of bananas obtained by the method of Example 2 was the highest, up to 16.6%, and the content of bananas planted by traditional planting methods was the lowest, at 10.8%. Compared with traditional banana planting, the protein content of bananas obtained by the methods of Examples 1 to 2 increased by 18.18% to 63.63%. The protein content of bananas obtained by the method of Example 2 was the highest, up to 1.8 mg·g -1 The protein content of bananas grown by traditional methods is the lowest, at 1.1 mg / g -1 Therefore, it can be seen that the bananas planted by the methods of Examples 1 to 2 have high yield and good quality, which can significantly improve the economic benefits of planting bananas.

[0077] The above is a detailed description of the embodiments of the present invention, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present invention. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

Claims

1. A method for planting bananas in combination with earthworms, characterized in that: The method is carried out based on an ecological breeding model of banana and earthworm symbiosis, and comprises the following steps: (1) Land pretreatment: The banana field is raised on the ridges, deep trapezoidal trenches are dug between the ridges, a circular trench is dug around the banana field, the ridge surface is connected to the circular trench, and banana plants are planted on the ridge surface; (2) Construction of earthworm bed: The culture base material is piled at the bottom of the inverted trapezoidal deep ditch, and holes are dug on the slopes on both sides, and the culture base material is placed, and the soil is covered and filled to obtain a three-dimensional earthworm culture bed; (3) Earthworm preparation: Place earthworms in the three-dimensional earthworm breeding bed and control the soil moisture in the banana field; (4) Field management: Apply topdressing during the banana leaflet stage, before and after budding, and during the small fruit stage; during the vigorous growth period, there is a shallow layer of water in the ditch and weeds are cleared; the soil pH value is adjusted.

2. The method according to claim 1, characterized in that The earthworms described in step (3) are placed in the three-dimensional earthworm breeding bed at a rate of 100 to 300 kg per mu of banana field.

3. The method according to claim 1, characterized in that The width of the bed surface in step (1) is 1 to 4 meters, the vertical depth of the inverted trapezoidal deep ditch is 1 to 2 meters, and the slopes on both sides are 25 to 40 degrees.

4. The method according to any one of claims 1 to 3, characterized in that: The breeding base material in step (2) includes banana waste and livestock and poultry manure waste.

5. The method according to any one of claims 1 to 3, characterized in that: The stacking thickness of the aquaculture substrate in step (2) is 25 to 60 cm.

6. The method according to any one of claims 1 to 3, characterized in that: The soil pH value in step (4) is maintained at 5-6.

7. The method according to claim 6, characterized in that The topdressing in step (4) is to add phosphorus-potassium compound fertilizer by drench application.

8. The method according to claim 2, characterized in that: The soil moisture is controlled at 20% to 30%.

9. The method according to any one of claims 1 to 3, characterized in that: The method also includes a harvesting step, which includes harvesting banana fruits first and then harvesting earthworms, and crushing banana leaves and then composting them on site.

10. Use of the method according to any one of claims 1 to 9 in fruit and vegetable planting or improving banana quality.