CN110959470A - Culture method for intercropping largemouth black bass by using gorgon fruit - Google Patents
Culture method for intercropping largemouth black bass by using gorgon fruit Download PDFInfo
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
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- A01K61/00—Culture of aquatic animals
- A01K61/10—Culture of aquatic animals of fish
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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Abstract
The invention relates to a method for intercropping largemouth bass by gordon euryale seeds, which comprises the following steps: 1) excavating a circular ditch, 2) clearing and tidying a pond opening, 3) stocking fish seeds; 4) feeding feed, 5) planting gorgon fruit, 6) field management, 7) water quality management, 8) picking gorgon fruit and 9) fishing fish. The method adopts a culture mode for intercropping the largemouth bass in the gorgon fruit pond, the culture mode is novel, the yield, the specification and the quality of the gorgon fruit are not influenced, the water body space is fully developed and utilized, and the pond culture variety is increased. The largemouth bass can ingest shrimps and insects, so that the gordon euryale disease incidence rate is reduced, the market risk caused by singly planting gordon euryale is effectively avoided, meanwhile, the gordon euryale is used for shading the largemouth bass, excrement is fully absorbed and utilized, water pollution is reduced, the economic benefit is improved by more than 16% compared with that of single gordon euryale, and the ecological environment protection is facilitated, and the method has important significance for promoting the industrial development of gordon euryale planting and the largemouth bass.
Description
Technical Field
The invention relates to the technical field of aquaculture, in particular to a method for intercropping largemouth bass by gorgon fruit.
Background
Perch in large mouth (Micropterussalmoides) The Lateolabrax japonicus and Lateolabrax japonicus belong to Perciformes, Taiwanchidaceae (Ceutrarchidac), Lateolabrax (Micropterus), are carnivorous warm water fish, and originally produce the water system of Missippi river, California, USA. The fish has the excellent characteristics of rich nutrition, delicious and tender meat, no muscle prickling, beautiful appearance, high growth speed, easy capture, short culture period, strong disease resistance, wide temperature adaptability and the like, is deeply welcomed by culturists and consumers, is popularized all over the country at present, and becomes one of the important fresh water culture varieties in China. In 2018, the national yield exceeds 45 million tons, and the industry develops rapidly. However, the cultivation mode mainly comprises high-density intensive cultivation of the net cages and the ponds, high input and output, high technical threshold, frequent disease occurrence, direct discharge and direct discharge of cultivation wastewater, large environmental pollution and cultivation risk, and is far away from the requirement of green development.
Gorgon fruit (A)Euryale ferox Salisb. ex Konig et Sims) The water-soluble traditional Chinese medicine is commonly called gorgon fruit, gorgon fruit and cockscomb, is a dried mature seed of a water herbaceous plant gorgon Euryale (Euryale ferox Salisb.) in Nymphaeaceae, is a traditional Chinese medicinal material, and is vegetarian with the reputation of 'ginseng in water' and 'longan in water'. The kernel can be used as medicine for eating, and the leaf and flower stalk can be used as aquatic vegetable, and can be used as food and medicine. Along with the increase of the demand, the cultivation area of the gorgon fruit is continuously increased, the economic benefit is high, and the prospect is wide. And the single planting mode of the gorgon fruit ensures that the biological chain is too simple, the ecological balance is damaged, the plant diseases and insect pests are easy to flood, the land utilization efficiency is not high, and the planting risk is larger.
The gordon euryale seed and the largemouth bass are organically combined, the excrement of the largemouth bass is effectively converted, the pest and disease damage of the gordon euryale seed is reduced, the ecological balance of the field is promoted, the land utilization efficiency is improved, the output of unit area is increased, the economic risk is reduced, the product quality is improved, and the ecological environment is protected.
At present, no report of intercropping largemouth bass by gordon euryale seeds exists in China.
Disclosure of Invention
The invention aims to combine planting and breeding by utilizing the principle of symbiosis and mutual benefits of biology and ecology, improve the existing breeding mode of micropterus salmoides and provide a gordon euryale intercropping micropterus salmoides breeding method with low risk and high benefit.
The technical solution of the invention is as follows:
a gorgon fruit intercropping largemouth bass breeding method comprises the following steps:
1) excavating a circular trench: surrounding ridges around the pond, and excavating a circular ditch at a position 0.5-1 m away from the surrounding ridges to form a deep water area and a shallow water area, wherein the deep water area is used for stocking largemouth bass and matched spotted silver carps, and the shallow water area is used for planting gorgon fruit.
2) Clearing and tidying the mouth of the pond: 3 in late ten days of the month, cleaning the bottom of the pond after the pond is dried, and every 667m2Applying 1000 kg-1500 kg of decomposed manure, ploughing, uniformly raking, soaking in water, and keeping the water level of 0.1 m-0.2 m in shallow water area, wherein each 667m215 kg-25 kg of tea seed cakes are used for removing harmful organisms.
3) Breeding fish seeds: the water temperature in the middle-upper ten days of 4 months is above 10 ℃, and each 667m in deep water region2Placing 1800-2200 tails of domesticated largemouth black weever with the body length of 7-10 cm and regular specification, and meanwhile, placing 667m of domesticated largemouth black weever in a deep water area230-40 silver carps with the specification of 4/kg and 40-50 silver carps with the specification of 4/kg are released, 3% potassium permanganate solution is used for immersion bath for 15-20 min before the largemouth black bass, silver carps and silver carp seeds are released, and the sufficient dissolved oxygen is kept during immersion bath.
4) Feeding the feed: feeding the domesticated largemouth bass with special compound feed, and arranging 1 feeding table every 20-25 m along the circular trench; feeding the feed for 4 times every day on the second day, wherein the feeding times are adjusted along with the water temperature; the first stage is as follows: when the weight of the fish is less than or equal to 100g, the feed amount is 10 kg-15 kg per day relative to 100kg of largemouth black bass, and the nutrient content standard of each 1kg feed is as follows: 45 to 50 percent of crude protein, 8 to 10 percent of crude fat, 13 to 19 percent of carbohydrate, 0.02 percent of vitamin C, 0.04 percent of vitamin E and 0.0002 percent of selenium se. And a second stage: when the weight of the fish is more than 100g and less than or equal to 500g, the feed amount is 3 kg-5 kg per day relative to 100kg of largemouth black bass, and the nutrient content standard of each 1kg feed is as follows: 42 to 46 percent of crude protein, 8 to 10 percent of crude fat, 10 to 16 percent of carbohydrate, 0.02 percent of vitamin C, 0.04 percent of vitamin E and 0.0002 percent of selenium se. And a third stage: when the weight of the fish is more than 500g, the fish is fed for 3 times a day, the feed amount is 3 kg-4 kg per day relative to 100kg of largemouth bass, and the nutrient content standard of each 1kg feed is as follows: 40 to 45 percent of crude protein, 8 to 10 percent of crude fat, 10 to 16 percent of carbohydrate, 0.02 percent of vitamin C, 0.04 percent of vitamin E and 0.0002 percent of selenium se.
5) Planting gorgon fruit: digging holes and vertical rods for planting in shallow water areas with the row spacing of 2.0-2.2 m and the row spacing of 2.0-2.2 m in 5-ten-day-ten days of the month, wherein each 667m of the shallow water areas2Planting 120-125 plants.
6) The field management comprises ① water level, maintaining the water level at the initial stage of field planting at 0.1-0.3 m in a shallow water area, 0.4-0.6 m in the middle stage and 0.3-0.4 m in a picking period, supplementing seedlings 7-10 days after ② field planting, removing weeds in the shallow water area and redundant waterweeds in a deep water area, periodically patrolling a pond and topdressing ③, and topdressing 15-20 days after field planting for the first time, wherein the topdressing is carried out every 667m2Applying 12 kg-15 kg of compound fertilizer; topdressing for the second time at the end of 7 months, each 667m2Applying 10 kg-12 kg of compound fertilizer.
7) Water quality management: keeping the pH value of pond water to be 7.0-8.5, the transparency to be 0.17-0.25 m and the dissolved oxygen to be more than 5mg/L, wherein each 667m of deep water area2Preparing a 0.3-0.75 kw micropore aerator; the water is changed every 10d to 15d in the high-temperature weather of 6 to 9 months, the water level is 0.1m to 0.2m in each water change, the aerator is started for 5h to 6h in the noon in sunny days, the aerator is started for 6h to 8h in the morning of the next day in cloudy days, the aerator is started for 6h to 10h in the middle night in continuous rainy days, and the EM bacterial preparation is splashed once every 15 d.
8) And (3) harvesting semen euryales manually, wherein the harvesting is started in the last ten days of 8 months, the harvesting interval is 5-7 d, the harvesting is continued to the bottom of 10 months, and the harvesting is kept 2-3 m away from a deep water area, so that largemouth black bass is prevented from being frightened.
9) Fishing the fish, namely pulling a net to capture the largemouth black perch in the middle and late ten days of 11 months, and then performing nuclear production in a dry pond.
Preferably, the rectangular pond with sufficient water source, freshness, no pollution, convenient water inlet and drainage and an area of 15 multiplied by 667 square meter to 20 multiplied by 667 square meter is selected in the step 1), the depth of the sludge in the pond is less than or equal to 0.1m, and the water retention is good; the periphery of the ridge is surrounded, the width of the ridge is 1-1.2 m, and the ridge is 0.8-1 m higher than the ground of the shallow water area.
Preferably, in the step 1), the width of the trench bottom is 2.5-3.5 m, the depth is 1.2-1.4 m, and the slope ratio is 1: 4.6-1: 2.6.
Preferably, the gorgon euryale seed variety in the step 5) is purple-flower sago euryale seed.
Preferably, the length of the planting pole in the step 5) is 0.8-1 m, the diameter of the pole is 0.01-0.03 m, the depth of the hole is 0.15m, and the diameter of the hole is 0.4-0.8 m.
Preferably, the euryale ferox seedling standard is as follows: 3 to 5 round leaves, the maximum leaf diameter of 0.15 to 0.25m, the length of the leaf stalk of 0.3 to 0.6m, and complete and ordered root system. 1 plant in each hole, compacting the root system with soil, and smoothing the leaves.
The invention has the beneficial effects that:
the method adopts a culture mode for intercropping the largemouth bass in the gorgon fruit pond, the culture mode is novel, the yield, the specification and the quality of the gorgon fruit are not influenced, the water body space is fully developed and utilized, and the pond culture variety is increased. The largemouth bass can ingest shrimps and insects, so that the gordon euryale disease incidence rate is reduced, the market risk caused by singly planting gordon euryale is effectively avoided, meanwhile, the gordon euryale is used for shading the largemouth bass, excrement is fully absorbed and utilized, water pollution is reduced, the economic benefit is improved by more than 16% compared with that of single gordon euryale, and the ecological environment protection is facilitated, and the method has important significance for promoting the industrial development of gordon euryale planting and the largemouth bass.
Drawings
Fig. 1 is a schematic illustration of pond conditions according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention.
Examples
1) Pond conditions: newly-excavated 3 rectangular ponds with sufficient water sources, freshness and no pollution, convenient water inlet and drainage, areas of 15 multiplied by 667 square meters, 17 multiplied by 667 square meters and 20 multiplied by 667 square meters are selected in 3 months in 2018 in the stubborn transition of Jiangsu, the soil is loose and rich in humus, the depth of the sludge is 0.1m, and the water retention property is good; surrounding ridges, wherein the width of each ridge is 1.2m, and the height of each ridge is 0.8m higher than the ground of the shallow water area;
2) excavating a circular trench: and (3) excavating a circular ditch at a position 0.5m away from the surrounding ridge, wherein the width of the ditch is 3.5m, the depth of the ditch is 1.4m, and the slope ratio is 1: 4.4. The areas of the 3 pond mouth deep water areas are respectively about as shown in the attached figure 1;
3) water inlet and drainage facilities: a channel with the width of 3m is reserved at one corner of each pond, a cement pipe with the diameter of 1m is buried below the pond and communicated with the annular ditches at the two sides, so that the water body can rotate circularly; 3 sets of 7.5kw pumps are equipped, so that the drainage and irrigation are smooth; the water outlet is positioned at the opposite angle, and the water inlet and the water outlet are separated by using a purse net to prevent the largemouth black bass from escaping;
4) clearing and tidying the mouth of the pond: cleaning the bottom of the pond after the pond is dried for 30 days, and drying the pond for 21 days in 3 months every 667m2Applying 1000kg of decomposed manure, uniformly ploughing, raking, soaking in water, and keeping the water level of a shallow water area at 0.2m, wherein each 667m2Removing harmful organisms by using 25kg of tea seed cakes, and fishing out sundries such as dead fish and the like;
5) breeding fish seeds: the water temperature reaches more than 10 ℃ in 4 months and 12 days, and each 667m in deep water region2Purchase 1800 tails of Lateolabrax japonicus with body length of 7-10 cm in Suzhou fry farm, and simultaneously, purchase each 667m of Lateolabrax japonicus in deep water area230 silver carps with the specification of 4/kg and 40 silver carps with the specification of 4/kg are released, the release amount is shown in table 1, 3 percent potassium permanganate solution is used for immersion bath for 15min before largemouth black bass, silver carps and silver carp seeds are released, and a 1kw aerator is used for continuously increasing oxygen during immersion bath;
6) feeding the feed: and 1 feeding table is arranged every 25m along the circular trench. Feeding the feed 4 times (6: 30, 10:30, 14:30 and 16: 00) every day on 13 days in 4 months, wherein the feeding times are adjusted along with the water temperature. The first stage is as follows: when the weight of the fish is less than or equal to 100g, the feed amount is 10 kg-15 kg per day relative to 100kg of largemouth black bass, the feed is fed until the fish does not eat the feed every time, and the nutrient content of each 1kg feed is standard: 46% of crude protein, 8% of crude fat, 19% of carbohydrate, 0.02% of vitamin c, 0.04% of vitamin E and 0.0002% of selenium se. Day 5 month 27 the second phase was started: when the weight of the fish is more than 100g and less than or equal to 500g, the feed amount is 5kg per day relative to 100kg of largemouth black bass, and the nutrient content standard of each 1kg of feed is as follows: 42% of crude protein, 10% of crude fat, 16% of carbohydrate, 0.02% of vitamin c, 0.04% of vitamin E and 0.0002% of selenium se. 10 months and 20 days the third phase: when the weight of the fish is more than 500g, the fish is fed for 3 times a day, the feed amount is 3kg for 100kg of largemouth black bass every day, and the nutrient content standard of each 1kg of feed is as follows: 40% of crude protein, 8% of crude fat, 10% of carbohydrate, 0.02% of vitamin c, 0.04% of vitamin E and 0.0002% of selenium se.
7) Planting gorgon fruit: the gorgon fruit variety is purple-flower sago euryale seed. Digging holes at row spacing of 2.0m and row spacing of 2.0m for 5 months and 17 days for vertical rod planting, wherein the length of the rod is 1m, the diameter of the rod is 0.01m, the depth of the hole is 0.15m, the diameter of the hole is 0.4m, and each 667m of shallow water area2125 plants were planted. Gorgon fruit seedling standard: 3 to 5 round leaves, the maximum leaf diameter of 0.15 to 0.25m, the length of the leaf stalk of 0.3 to 0.6m, and complete and ordered root system. 1 plant in each hole, compacting the root system with soil, and smoothing the leaves. The planting amount of 3 ponds is 1473 plants, 1693 plants and 2030 plants respectively.
8) Field management, ① water level, namely keeping the water level of a shallow water area at a fixed planting water level of 0.3m in 17 th of 5 th of month, keeping the water level of 0.6m in 17 th of 6 th of month, keeping the water level of 0.4m in a picking period in 25 th of 8 th of month, replenishing seedlings for 1 time in 27 th of ② 5 th of month, removing weeds in the shallow water area and redundant waterweeds in the deep water area, patrolling the pond every day at ③, topdressing for the first time in 7 th of 6 th of month, and topdressing for the shallow water area every 6672Applying 15kg of compound fertilizer; topdressing for the second time in 27 days after 7 months in shallow water area each 667m210kg of compound fertilizer is applied.
9) Water quality management: keeping the pH value of pond water to be 7.0-8.5, the transparency to be 0.17-0.25 m and the dissolved oxygen to be more than 5mg/L, wherein each 667m of deep water area2Is provided with a 0.3kw micropore aerator. The water is changed every 15 days in 6-9 months in high-temperature weather, the water level is 0.2m in each time, the aerator is started for 5h in the noon in sunny days, the aerator is started for 6h in the morning of the next day in cloudy days, the aerator is started for 6h in the middle of the night in continuous cloudy days, and the EM (effective microorganism) preparation is sprayed every 15 days.
10) The disease control method is characterized in that diseases and pests of gordon euryale are mainly prevented, main diseases comprise anthracnose, leaf spot, phylloclasia, red filariasis, aphid and the like, diseases of largemouth bass mainly comprise trichodiniasis, tubulosis, lernaea, canker, enteritis, body maturity, virus diseases and the like, the prevention method is ① to thoroughly clean ponds and sterilize, ② fish species are disinfected by 3% potassium permanganate solution in a bathing mode when stocking, ③ stocking sources are clear, seedlings are inspected and quarantined, ④ selects complete formula feed of regular manufacturers, 0.02g of garlicin powder meeting the industry standard is added to every 1kg of feed every 20 days and fed for 7 days continuously, ⑤ maintains water quality, and ⑥ is disinfected and sterilized once a month by using chlorine dioxide.
11) And (3) harvesting semen euryales manually at 23 days after 8 months, wherein the harvesting interval is 5 days, the harvesting lasts for 31 days after 10 months, and the distance between the harvesting time and the deep water area is kept 2m, so that largemouth black bass is prevented from being frightened.
11) Fishing the fish, namely pulling a net to catch the largemouth black bass in 20 days after 11 months, and then performing nuclear production in a dry pond.
The seed and culture yields and benefits are shown in table 2.
Claims (6)
1. A gorgon fruit intercropping largemouth bass breeding method is characterized in that: the method comprises the following steps:
1) excavating a circular trench: surrounding ridges around the pond, and excavating a circular ditch at a position 0.5-1 m away from the surrounding ridges to form a deep water area and a shallow water area, wherein the deep water area is used for stocking largemouth bass and matched spotted silver carps, and the shallow water area is used for planting gordon euryale seeds;
2) clearing and tidying the mouth of the pond: 3 in late ten days of the month, cleaning the bottom of the pond after the pond is dried, and every 667m2Applying 1000 kg-1500 kg of decomposed manure, ploughing, uniformly raking, soaking in water, and keeping the water level of 0.1 m-0.2 m in shallow water area, wherein each 667m2Using 15 kg-25 kg of tea seed cake to remove harmful organisms;
3) breeding fish seeds: the water temperature in the middle-upper ten days of 4 months is above 10 ℃, and each 667m in deep water region2Placing 1800-2200 tails of domesticated largemouth black weever with the body length of 7-10 cm and regular specification, and meanwhile, placing 667m of domesticated largemouth black weever in a deep water area230-40 silver carps with the specification of 4/kg and 40-50 silver carps with the specification of 4/kg are released, 3% potassium permanganate solution is used for immersion bath for 15-20 min before the largemouth black bass, silver carps and silver carp seeds are released, and the sufficient dissolved oxygen is kept during immersion bath;
4) feeding the feed: feeding the domesticated largemouth bass with special compound feed, and arranging 1 feeding table every 20-25 m along the circular trench; feeding the feed for 4 times every day on the second day, wherein the feeding times are adjusted along with the water temperature; the first stage is as follows: when the weight of the fish is less than or equal to 100g, the feed amount is 10 kg-15 kg per day relative to 100kg of largemouth black bass, and the nutrient content standard of each 1kg feed is as follows: 45 to 50 percent of crude protein, 8 to 10 percent of crude fat, 13 to 19 percent of carbohydrate, 0.02 percent of vitamin C, 0.04 percent of vitamin E and 0.0002 percent of selenium se;
and a second stage: when the weight of the fish is more than 100g and less than or equal to 500g, the feed amount is 3 kg-5 kg per day relative to 100kg of largemouth black bass, and the nutrient content standard of each 1kg feed is as follows: 42 to 46 percent of crude protein, 8 to 10 percent of crude fat, 10 to 16 percent of carbohydrate, 0.02 percent of vitamin C, 0.04 percent of vitamin E and 0.0002 percent of selenium se;
and a third stage: when the weight of the fish is more than 500g, the fish is fed for 3 times a day, the feed amount is 3 kg-4 kg per day relative to 100kg of largemouth bass, and the nutrient content standard of each 1kg feed is as follows: 40 to 45 percent of crude protein, 8 to 10 percent of crude fat, 10 to 16 percent of carbohydrate, 0.02 percent of vitamin C, 0.04 percent of vitamin E and 0.0002 percent of selenium se;
5) planting gorgon fruit: digging holes and vertical rods for planting in shallow water areas with the row spacing of 2.0-2.2 m and the row spacing of 2.0-2.2 m in 5-ten-day-ten days of the month, wherein each 667m of the shallow water areas2Planting 120-125 plants;
6) the field management comprises ① water level, maintaining the water level at the initial stage of field planting at 0.1-0.3 m in a shallow water area, 0.4-0.6 m in the middle stage and 0.3-0.4 m in a picking period, supplementing seedlings 7-10 days after ② field planting, removing weeds in the shallow water area and redundant waterweeds in a deep water area, periodically patrolling a pond and topdressing ③, and topdressing 15-20 days after field planting for the first time, wherein the topdressing is carried out every 667m2Applying 12 kg-15 kg of compound fertilizer; topdressing for the second time at the end of 7 months, each 667m2Applying 10 kg-12 kg of compound fertilizer;
7) water quality management: keeping the pH value of pond water to be 7.0-8.5, the transparency to be 0.17-0.25 m and the dissolved oxygen to be more than 5mg/L, wherein each 667m of deep water area2Preparing a 0.3-0.75 kw micropore aerator; changing water once every 10 d-15 d in 6-9 months in high-temperature weather, wherein the water changing amount is 0.1 m-0.2 m in each time, starting the aerator for 5 h-6 h in the noon in sunny days, starting the aerator for 6 h-8 h in the morning of the next day in cloudy days, starting the aerator for 6 h-10 h in the middle night in continuous rainy days, and splashing the EM bacterial preparation once every 15 d;
8) harvesting semen euryales manually in the last ten days of 8 months, wherein the harvesting interval is 5-7 d, the harvesting lasts until the bottom of 10 months, and the harvesting is kept 2-3 m away from a deep water area to prevent frightening largemouth bass;
9) fishing the fish, namely pulling a net to capture the largemouth black perch in the middle and late ten days of 11 months, and then performing nuclear production in a dry pond.
2. The method for culturing largemouth black perches by intercropping gordon euryale seeds as claimed in claim 1, which is characterized in that: selecting a rectangular pond with sufficient water source, freshness, no pollution, convenient water inlet and drainage and an area of 15 multiplied by 667 square meter to 20 multiplied by 667 square meter in the step 1), wherein the depth of the pond sludge is less than or equal to 0.1m, and the water retention is good; the periphery of the ridge is surrounded, the width of the ridge is 1-1.2 m, and the ridge is 0.8-1 m higher than the ground of the shallow water area.
3. The method for culturing largemouth black perches by intercropping gordon euryale seeds as claimed in claim 1, which is characterized in that: in the step 1), the width of the trench bottom is 2.5-3.5 m, the depth is 1.2-1.4 m, and the slope ratio is 1: 4.6-1: 2.6.
4. The method for culturing largemouth black perches by intercropping gordon euryale seeds as claimed in claim 1, which is characterized in that: and 5) selecting purple-flower and perilla-seed euryale ferox as the gordon euryale seed variety.
5. The method for culturing largemouth black perches by intercropping gordon euryale seeds as claimed in claim 1, which is characterized in that: the length of the fixed planting pole in the step 5) is 0.8 m-1 m, the diameter of the pole is 0.01 m-0.03 m, the depth of the hole is 0.15m, and the diameter of the hole is 0.4 m-0.8 m.
6. The method for culturing largemouth black perches by intercropping gordon euryale seeds as claimed in claim 1, which is characterized in that: the standard of the gordon euryale seed seedlings is as follows: 3 to 5 round leaves, the maximum leaf diameter of 0.15 to 0.25m, the length of the leaf stalk of 0.3 to 0.6m, and complete and ordered root system.
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