Gorgon fruit-wheat paddy-upland rotation efficient planting method

Abstract

The invention relates to the technical field of gordon euryale seed-wheat rotation planting, in particular to a gordon euryale seed-wheat paddy-upland rotation efficient planting method. Comprising the following steps of crop rotation connection, variety selection, field flood-drought conversion, mechanical operation and fertilizer and water collaborative management, gordon euryale seed seedling raising is carried out in advance in the first ten days of April, accurate position clamping is carried out on sowing and harvesting time of wheat, water drainage and humidity reduction are carried out in cooperation with cross-shaped ditches or cross-core ditches dug after gordon euryale seeds are harvested, and it is ensured that soil rapidly recovers the soil moisture content needed by wheat sowing; meanwhile, pathogen killing is carried out after the gordon euryale seeds are harvested, accumulation of harmful microorganisms is avoided, crops for rotation are scientifically and reasonably arranged, seamless connection of gordon euryale seed-wheat production is achieved, land, light, heat and water resources are effectively utilized, the land yield is increased, collaborative development of grain crops and commercial crops is promoted, reasonable allocation and efficient conversion of resources are promoted, and the economic benefit is increased. And agricultural production can be promoted to develop towards a higher-quality and more sustainable direction.

Description

Technical Field

[0001] The present invention relates to the technical field of the rotation planting technology of Euryale ferox and wheat. Specifically, it relates to a high-efficiency planting method for the waterlogged and dry rotation of Euryale ferox and wheat. Background Art

[0002] Wheat is a cereal crop widely planted all over the world. After its caryopsis is ground into flour, it can be used to make foods such as bread, steamed buns, biscuits, and noodles. After fermentation, it can be made into beer, alcohol, liquor (such as vodka), or biomass fuel. The fruits of wheat are rich in nutrients such as starch, protein, fat, minerals, calcium, iron, thiamine, riboflavin, niacin, and vitamin A, and it is one of the most important rations in China.

[0003] As a traditional Chinese medicine and edible plant, as a traditional Chinese medicine, Euryale ferox has the effects of tonifying the kidney and securing essence, invigorating the spleen and stopping diarrhea, and removing dampness and arresting vaginal discharge; as an edible plant: Euryale ferox contains various nutrients such as carbohydrates, proteins, and vitamins, which can provide energy for the human body, enhance physical strength, and relieve fatigue. It can also regulate qi and blood, and improve symptoms such as malnutrition.

[0004] In the eastern region of China where the annual accumulated temperature is about 5200°C to 5500°C and the sunshine hours are about 1900 hours to 2100 hours, the ecological environment is excellent, with criss-crossing rivers and lakes and a dense water network, which is suitable for the growth of Euryale ferox. However, the growth cycle of Euryale ferox is from April to October every year, and only about 7 months are utilized each year, and the other 5 months are in a fallow state, resulting in a waste of land resources. In this region, the accumulated temperature from November to March of the following year is about 1000°C to 1200°C, and the sunshine hours are about 800 to 1000 hours, but due to the fallow state, a large amount of light and heat resources are wasted. [[ID=​​​​​​​Currently, the promotion of the gorgon fruit-wheat rotation planting technology is hindered by the fact that traditional drainage methods result in excessively long soil moisture recovery times, and continuous cropping of gorgon fruit leads to the accumulation of harmful microorganisms.

[0007] To achieve the above objectives, this efficient water-dry rotation planting method for water chestnut and wheat includes the following steps: S1. Crop rotation: Water chestnut seedlings are raised in early April, transplanted in early June, and harvested in early to mid-October; wheat is sown from late October to early November and harvested in late May of the following year. S2. Variety selection: For gorgon fruit, select thornless, large-grained, and glutinous varieties; for wheat, select spring-type, high-yielding, high-quality, and multi-resistant varieties. S3. Field water-dry transition: After harvesting water chestnuts, immediately dig cross ditches or cross-shaped ditches to drain water and reduce moisture, ensuring that the soil moisture meets the requirements for wheat sowing; S4. Mechanized operation: Wheat is sown mechanically in rows, with 2.25 million to 2.7 million seedlings per hectare, and ditching is carried out simultaneously to ensure smooth drainage. S5. Fertilizer and water synergistic management: During the growth period of water chestnuts, the water depth should be dynamically adjusted, and topdressing should be applied according to the growth stage; Wheat should be fertilized in two stages, during the seedling stage and the jointing stage.

[0008] In the above technical solution, in S3, after the harvest of water chestnuts, cross ditches or concentric ditches can be dug in the field for drainage. The choice of these two ditches greatly improves the field drainage capacity. In this solution, the depth of the cross ditches or concentric ditches is 20-30cm, and the distance between adjacent ditches can be ≤5m. The cross ditches or concentric ditches are used to restore soil moisture. The mechanism of moisture restoration is that when the soil moisture content decreases, the soil hardness will increase, which can greatly increase the aeration porosity in the soil and meet the root oxygen demand when wheat is planted. Three to five days after the S3 drainage is completed, the soil moisture content has decreased, the soil aeration porosity has increased, the oxygen content inside the aeration pores has increased, and the competitive proliferation of aerobic microorganisms has reduced the activity of soil-borne pathogens such as Fusarium. At this time, spraying a broad-spectrum fungicide can efficiently penetrate into the plow pan and effectively remove the root rot pathogens remaining after the harvest of water chestnuts.

[0009] In S1, water chestnut seedlings are started in early April to avoid the low temperatures before the late spring frost. In East China, the average daily temperature is stable at ≥12℃ in early April. Transplanting in early June allows the water chestnuts to take root before the flood season. After rooting, the plum rain season allows the water chestnuts to expand their leaves rapidly. The first frost in this region usually occurs in late October. Therefore, in this plan, water chestnuts are harvested in early to mid-October to avoid frost. In addition, the harvesting of water chestnuts needs to be carried out in two stages. The first stage is 20-22 days after flowering, when young seeds are harvested. The second stage is 25-30 days after flowering, when mature seeds are harvested. Wheat is sown in late October to take advantage of the residual soil warmth after the harvest of water chestnuts. Harvesting in late May ensures timely harvesting at maturity, avoiding the impact of the plum rain season. During the plum rain season, continuous rainfall increases field humidity, making wheat prone to lodging. At the same time, continuous rain makes mechanical harvesting difficult, and wheat grains are prone to mold, affecting product quality.

[0010] In another technical solution, S5 employs synergistic fertigation, requiring dynamic adjustment of water depth during the growth period of Euryale ferox: maintaining a shallow water layer of 5-10cm during the seedling stage to slightly raise the soil temperature by about 2-3℃, which can accelerate the development of Euryale ferox roots; deepening the water layer to 15-20cm during the tillering stage to suppress ineffective tillering and concentrate nutrients on fruiting branches; and deepening the water layer to 25-30cm during the flowering and fruiting stage to buffer against the impact of heavy rain and reduce fruit drop rate. Simultaneously, organic fertilizer can be applied during the Euryale ferox transplanting stage to improve the soil, and nitrogen, phosphorus, and potassium compound fertilizer can be applied during the flowering and fruiting stage to ensure grain filling. In S5, wheat adopts a two-end promotion and middle control fertilization strategy. Base fertilizer is applied during the wheat seedling stage, with 50% nitrogen fertilizer, which helps wheat seedlings to tiller effectively before winter. No nitrogen fertilizer is applied during the overwintering period, which increases the carbon-nitrogen ratio in the soil and enhances the wheat's cold resistance. Finally, another 50% nitrogen fertilizer is applied during the wheat jointing stage to precisely meet the nitrogen requirements for wheat ear differentiation.

[0011] In addition, when sowing wheat in S4, the ditches opened simultaneously can adopt the method of opening three inner ditches and three outer ditches, in which the inner and outer ditches are connected, and the depth of the ditches is ≥25cm, and the distance between adjacent ditches is ≤3m.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: By cultivating water chestnut seedlings in early April, precisely aligning them with the sowing and harvesting times of wheat, and coordinating with drainage and moisture reduction through cross-shaped or concentric ditches dug after water chestnut harvesting, the soil moisture is ensured to quickly recover to the level required for wheat sowing. Simultaneously, pathogen control measures are implemented after water chestnut harvesting to prevent the accumulation of harmful microorganisms. This scientific and rational arrangement of crop rotation ensures seamless integration of water chestnut and wheat production, effectively utilizing land, light, heat, and water resources, increasing land productivity, promoting the coordinated development of food and cash crops, and facilitating the rational allocation and efficient transformation of resources. This contributes to driving agricultural production towards higher quality and greater sustainability. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the planting steps for the gorgon fruit-wheat rotation according to the present invention; Figure 2 This is a schematic diagram of the cross groove in Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the concentric groove in Embodiment 2 of the present invention. Detailed Implementation

[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] Currently, the adoption of the gorgon fruit-wheat rotation technique faces several challenges. Traditional drainage methods result in excessively long soil moisture recovery times, and continuous cropping of gorgon fruit leads to the accumulation of harmful microorganisms. This invention provides a highly efficient method for gorgon fruit-wheat water-upland rotation. Example 1

[0016] like Figure 1 As shown, it includes the following steps: S1. Crop rotation: Water chestnut seedlings are raised in early April, transplanted in early June, and harvested in early to mid-October; wheat is sown from late October to early November and harvested in late May of the following year. S2. Variety selection: For gorgon fruit, select thornless, large-grained, and glutinous varieties; for wheat, select spring-type, high-yielding, high-quality, and multi-resistant varieties. S3. Field water-dry transition: After harvesting water chestnuts, immediately dig cross ditches or cross-shaped ditches to drain water and reduce moisture, ensuring that the soil moisture meets the requirements for wheat sowing; S4. Mechanized operation: Wheat is sown mechanically in rows, with 2.25 million to 2.7 million seedlings per hectare, and ditching is carried out simultaneously to ensure smooth drainage. S5. Fertilizer and water synergistic management: During the growth period of water chestnuts, the water depth should be dynamically adjusted, and topdressing should be applied according to the growth stage; Wheat should be fertilized in two stages, during the seedling stage and the jointing stage.

[0017] In the above technical solution, the preferred gorgon fruit variety selected in S2 is Tianqian No. 1, which is a gorgon fruit variety independently developed by Tianchang City, Chuzhou City, Anhui Province. For wheat, spring-type, high-yielding, high-quality and multi-resistant varieties are selected, such as Yangmai 23, Yangmai 25, Ningmai 13 or Zhenmai 12 wheat varieties. These varieties all have certain waterlogging resistance and disease resistance characteristics. Specifically, the *Euryale ferox* seedlings were started on April 5th, with a seedling age of 45 days and a leaf diameter of 28cm. This effectively avoids the low temperatures caused by the late spring frost. Transplanting began on June 1st, allowing the *Euryale ferox* to take root before the flood season. After taking root, the *Euryale ferox* rapidly expands its leaves during the plum rain season. Harvesting took place on October 12th. It is important to note that the first stage of harvesting should be between 20-22 days after flowering, when the tender seeds are harvested, and the second stage should be between 25-30 days after flowering, when the mature seeds are harvested. Immediately after harvesting, dig ditches in the field. In this embodiment, the preferred ditch method is a cross-shaped ditch, such as... Figure 2 As shown, the ditch is 25cm deep and the distance between adjacent ditches is 4m, which is used for efficient drainage of the field. Four days after the drainage is completed, the soil moisture content drops significantly, thus the soil hardness increases, the aeration pores in the soil expand, and the oxygen content in the soil increases. At this time, the workers can spray the soil with a broad-spectrum fungicide. In this embodiment, the preferred broad-spectrum fungicide is 25% azoxystrobin suspension, with a spraying density of 200g / ha, to remove the root rot pathogens remaining after the harvest of water chestnuts. Root rot pathogens include Fusarium, etc. In addition, during the wheat jointing stage, according to the principle of weed control, disease prevention, and pest control, biological pesticides are given priority. In this embodiment, the preferred biological pesticide is Bacillus subtilis wettable powder. When wheat sheath blight first occurs, 1 billion CFU / g of Bacillus subtilis wettable powder is sprayed at a spraying density of 500g / ha. After spraying a broad-spectrum fungicide, wheat is sown using mechanical row sowing. In this embodiment, the preferred sowing density is 2.5 million plants per hectare. At the same time, three inner ditches and three outer ditches are opened. The depth of the inner and outer ditches is 28 cm, and the distance between adjacent ditches is 2.5 m. Finally, in S5, it is important to note that during the growth period of water chestnut, it is necessary to effectively regulate the soil water depth. Specifically, during the seedling stage, a shallow water layer of 8cm should be maintained, which can effectively increase the soil temperature and help the root development of water chestnut seedlings. Secondly, during the tillering stage, the water depth can be increased to 18cm, which can inhibit ineffective tillering and concentrate the nutrients in the soil to supply the fruiting branches. Finally, during the flowering and fruiting stage, the soil water layer needs to be increased to 28cm. This measure can effectively buffer the impact of heavy rain and reduce the fruit drop rate of water chestnut. At the same time, organic fertilizer can be applied during the planting stage to improve the soil, and nitrogen, phosphorus and potassium compound fertilizer can be applied during the flowering and fruiting stage to ensure grain filling. In S5, the wheat adopts a two-stage promotion and middle-stage control fertilization strategy. Specifically, basal fertilizer is applied during the seedling stage. In this embodiment, 50% nitrogen fertilizer is preferred as the basal fertilizer to enable wheat to effectively tiller before winter. No nitrogen fertilizer is needed in the middle stage, which can increase the carbon-nitrogen ratio in the soil and enhance the wheat's cold resistance. Finally, 50% nitrogen fertilizer is applied again during the wheat jointing stage to make the nitrogen value in the soil reach the level required for wheat ear differentiation.

[0018] Example 2: The efficient planting method of water-dry rotation of Euryale ferox and wheat is the same as in Example 1, except that in S3, the preferred method for ditch excavation is a concentric ditch, such as... Figure 3 As shown, the main ditch is 28cm deep, the branch ditches are 25cm deep, and the distance between adjacent ditches is 3.5m.

[0019] Example 3: The efficient planting method of water-dry rotation of gorgon fruit and wheat is the same as that of Example 1, except that the sowing density of wheat in S4 is 2.25 million plants per hectare.

[0020] Example 4: The efficient planting method of water-dry rotation of gorgon fruit and wheat is the same as that of Example 1, except that the sowing density of wheat in S4 is 2.7 million plants per hectare.

[0021] Comparative Example 1: The efficient planting method of water-dry rotation of gorgon fruit and wheat is the same as that of Example 1, except that the sowing density of wheat in S4 is 2 million plants per hectare.

[0022] Comparative Example 2: The efficient planting method of water-dry rotation of gorgon fruit and wheat is the same as that of Example 1, except that the sowing density of wheat in S4 is 2.9 million plants per hectare.

[0023] Comparative Example 3: The efficient planting method of water-dry rotation of gorgon fruit and wheat is the same as that of Example 1, except that the depth of the cross furrow in S3 is 15cm and the distance between adjacent furrows is 6m.

[0024] Comparative Example 4: The efficient planting method of water-dry rotation of gorgon fruit and wheat is the same as that of Example 1, except that the depth of the cross furrow in S3 is 40cm and the distance between adjacent furrows is 6m.

[0025] Comparative Example 5: The efficient planting method of water-dry rotation of gorgon fruit and wheat is the same as that of Example 1. The difference from Example 1 is that after drainage in S3, a broad-spectrum fungicide is sprayed immediately. The type of broad-spectrum fungicide is the same as that of Example 1.

[0026] Comparative Example 6: The efficient planting method of water-dry rotation of gorgon fruit and wheat is the same as that of Example 1. The difference from Example 1 is that a broad-spectrum fungicide is sprayed 7 days after the drainage of S3 is completed. The type of broad-spectrum fungicide is the same as that of Example 1.

[0027] In addition, a control group was added based on the aforementioned embodiments and comparative examples, in which no drainage ditches were dug.

[0028] Experimental Example 1: Verification of Drainage Efficiency of Ditch System Experimental design: Five types of ditches were set up for drainage in Tianchang, Anhui Province. After the harvest of water chestnuts, there was continuous rainfall for 3 days with a total rainfall of 120 mm.

[0029] Table 1: Verification of Drainage Efficiency of Ditch System Structure Group Drainage compliance time (h) Soil moisture content (%) Wheat emergence rate (%) Example 1 72 27.8 92.5 Example 2 48 26.9 95.3 Comparative Example 3 120 33.5 68.4 Comparative Example 4 96 28.7 84.2 Control group (without grooves) >168 41.2 0 Conclusion: According to the experimental results in Table 1, the cross-ditch and concentric ditch methods used in Examples 1 and 2, even in continuous rainfall of 120 mm after the harvest of water chestnuts, can reduce the soil moisture content to below 28% within 48-72 hours. Meanwhile, the wheat emergence rate is higher than 92%. On the other hand, the cross-ditch in Comparative Example 3, due to its shallow depth and increased spacing between ditches, requires 120 hours to reach a soil moisture content of 33.5% under the same weather conditions, and the wheat emergence rate is too low, only 68.4%. In Comparative Example 4, although the cross-ditch depth was increased, the increased spacing between ditches still requires 96 hours to reduce the soil moisture content to 28.7%, while the wheat emergence rate is 84.2%. Furthermore, the control group suffered from severe waterlogging due to complete drainage failure, preventing wheat emergence. Therefore, the cross-ditch and concentric ditch methods used in Examples 1 and 2, with their depth and spacing within the specified range, are the optimal choice.

[0030] Experimental Example 2: Study on the mechanism of bactericidal window period Monitoring method: Soil oxygen concentration and pathogen activity were measured hourly after drainage.

[0031] Table 2: Validation of the bactericidal window period mechanism Group Soil oxygen concentration (%) Mycelial inactivation rate (%) Spore germination inhibition rate (%) Example 1 15.7 96.8 92.5 Comparative Example 5 9.2 41.3 8.7 Comparative Example 6 19.3 78.5 65.2 Conclusion: According to the experimental results in Table 2, in Example 1, due to the use of a drainage system, the soil oxygen concentration increased to 15.7% after drainage. The application of a broad-spectrum fungicide 4 days after drainage effectively achieved a mycelial inactivation rate of 96.8% and a spore germination inhibition rate of 92.5%. In contrast, in Comparative Example 5, the antibacterial effect collapsed due to a soil oxygen concentration of only 9.2%, resulting in a mycelial inactivation rate of only 41.3% and a spore germination inhibition rate as low as 8.7%. Although Comparative Example 6 had an oxygen concentration of 19.3%, its antibacterial effect was still significantly lower than that of Example 1, with a mycelial inactivation rate of 78.5% and a spore germination inhibition rate... The oxygen concentration in Example 1 was as low as 65.2%. Although the soil oxygen concentration in Comparative Example 6 was 19.3%, the excessive oxygenation disrupted the soil microecological balance, inducing an explosive proliferation of aerobic saprophytes such as Trichoderma. The extracellular polysaccharides secreted by the aerobic saprophytes encapsulated the pathogen spores, forming a physical protective layer, which led to a decrease in the spore germination inhibition rate. At the same time, the high-oxygen environment accelerated the metabolic activation of Fusarium, causing dormant hyphae to enter a stress-resistant state, which significantly weakened the inactivation effect. Therefore, it is confirmed that during sterilization, the soil oxygen concentration is not necessarily better the higher it is. The soil oxygen concentration of 15.7% in Example 1 met the requirements for aerobic sterilization while avoiding ecological disturbance.

[0032] Experiment Example 3: Wheat Planting Density Yield Effect (A three-year field experiment was conducted; in this example, the experimental area could be Tianchang, Anhui Province.) Table 3: Verification of the yield effect of wheat planting density Test metrics Example 1 Example 3 Example 4 Comparative Example 1 Comparative Example 2 Effective panicle count (10,000 ears / mu) 35.8 32.7 36.9 28.3 38.1 number of grains per ear 40.2 38.5 39.7 36.2 36.8 1000-grain weight (g) 43.5 42.3 42.1 40.1 39.4 Actual yield (kg / mu) 625.8 532.6 617.3 410.2 552.7 Lodging rate (%) 5.2 2.1 7.8 0.9 18.6 Incidence rate of sheath blight (%) 10.3 6.5 12.3 5.1 24.7 Conclusion: According to the experimental results in Table 3, in Examples 1, 3, and 4, the wheat sowing density was between 2.25 million and 2.7 million plants per hectare. Because the effective spike count was between 327,000 and 369,000 per hectare, and the number of grains per spike and thousand-grain weight were relatively high, the yields of Examples 1 and 4 were both above 617.3 kg / mu. Although the yield of Example 3 was only 532.6 kg / mu, its lower lodging rate and sheath blight incidence made it suitable for planting in coastal areas with frequent wind and rain, or in loose, well-drained sandy soil areas, thus reducing the overall lodging rate of wheat. In contrast, Comparative Example 1 had an overall yield of only 410.2 kg / mu due to its excessively low sowing density, while Comparative Example 2 had a lodging rate of 18.6% and a sheath blight incidence rate as high as 24.7% due to its excessively high sowing density. Therefore, the 2.25 million to 2.7 million plant density range used in this scheme is verified as the optimal scheme.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A highly efficient planting method for water-dry rotation of foxnut and wheat, characterized in that, Includes the following steps: S1. Crop rotation: Water chestnut seedlings are raised in early April, transplanted in early June, and harvested in early to mid-October; wheat is sown from late October to early November and harvested in late May of the following year. S2. Variety selection: For gorgon fruit, select thornless, large-grained, and glutinous varieties; for wheat, select spring-type, high-yielding, high-quality, and multi-resistant varieties. S3. Field water-dry transition: After harvesting water chestnuts, immediately dig "cross ditches" or "connecting ditches" to drain water and reduce moisture, ensuring that the soil moisture meets the requirements for wheat sowing; S4. Mechanized operation: Wheat is sown mechanically in rows, with 2.25 million to 2.7 million seedlings per hectare, and ditching is carried out simultaneously to ensure smooth drainage. S5. Fertilizer and water synergistic management: During the growth period of water chestnuts, the water depth should be dynamically adjusted, and topdressing should be applied according to the growth stage; Wheat should be fertilized in two stages, during the seedling stage and the jointing stage.

2. The efficient planting method of water-dry rotation of Euryale ferox and wheat according to claim 1, characterized in that: In S1, the seedlings of Euryale ferox must be 1-2 round leaves with a leaf diameter ≥25cm when they are planted.

3. The efficient planting method of water-dry rotation of Euryale ferox and wheat according to claim 1, characterized in that: In S3, the depth of the "cross trench" is 20-30cm, the spacing between trenches is ≤5m, and the soil moisture content is ≤28% within 7 days after drainage.

4. The efficient planting method of water-dry rotation of Euryale ferox and wheat according to claim 1, characterized in that: In S4, when wheat is sown, the field ditch system includes "three inner ditches" and "three outer ditches", with a ditch depth of ≥25cm and a ditch spacing of ≤3m.

5. The efficient planting method of water-dry rotation of Euryale ferox and wheat according to claim 1, characterized in that: In S2, the gorgon fruit variety is "Tianqian No. 1", and the wheat variety is a spring-growing, waterlogging-resistant variety.

6. The efficient planting method of water-dry rotation of Euryale ferox and wheat according to claim 1, characterized in that: The topdressing during the growth period in S5 includes basal fertilizer at the planting stage and compound fertilizer at the flowering and fruiting stage. Base fertilizer for wheat accounts for 50% of the total nitrogen, and the remaining 50% of nitrogen fertilizer is applied as topdressing during the jointing stage.

7. The efficient planting method of water-dry rotation of Euryale ferox and wheat according to claim 1, characterized in that, 3-5 days after the completion of S3 drainage, spray a broad-spectrum fungicide: After harvesting the water chestnut, a broad-spectrum fungicide is sprayed to disinfect soil-borne pathogens. The broad-spectrum fungicide is selected from at least one of azoxystrobin and Bacillus subtilis. Biological pesticides are used to suppress sheath blight during the wheat growing season.

8. The efficient planting method of water-dry rotation of Euryale ferox and wheat according to claim 1, characterized in that, In S4, wheat mechanical row sowing uses a precision-controlled seeder with a row spacing of 20-25cm and a sowing depth of 2-3cm to ensure a seedling uniformity of ≥90%.

9. The efficient planting method of water-dry rotation of Euryale ferox and wheat according to claim 1, characterized in that, In step S1, the harvesting of fox nuts is carried out in stages: Harvest the tender seeds 20-22 days after flowering; Harvest mature seeds 25-30 days after flowering.

10. The efficient planting method of water-dry rotation of Euryale ferox and wheat according to any one of claims 1-9, characterized in that: The crop rotation cycle is an annual cycle.

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