A method for growing super-long grain green rice

Abstract

The application discloses a kind of super long particle green rice planting method, belongs to super long particle rice technical field, including the following steps: (1) variety selection, select OsGS3 gene loss type rice germplasm, particle length is greater than or equal to 7.8mm, chalkiness is less than or equal to 5%;(2) seedling transplanting, using degradable seedling stabilizing transplanting tray transplanting, after inserting seedling into transplanting hole, press seedling stabilizing transplanting tray, make its top embed in mud, ensure that seedling stabilizing transplanting tray does not float;(3) seedling cultivation, when seedling stabilizing transplanting tray dissolves to 60-70%, start rice duck co-production, raise 15-18 15-day-old Guizhou Xiaxiang duck per mu, water level control is 2.0-3.0cm in tillering period, implement the drought-wet alternation of wet 10 days and drought 5 days;(4) disease and insect pest control;Effectively solve the problem that the existing rice planting method is for super long particle rice planting in mountainous environment, and its productivity and economic efficiency are low.

Description

Technical Field

[0001] This invention relates to the field of ultra-long grain rice technology, specifically to a method for cultivating ultra-long grain green rice. Background Technology

[0002] Rice cultivation mainly relies on manual labor or simple mechanical tools. While these traditional methods are well-suited to complex terrain conditions, they are inefficient, labor-intensive, and have high management costs.

[0003] Therefore, there is an urgent need for a method for planting ultra-long grain green rice that is suitable for mountainous environments and can improve planting efficiency, so as to improve the productivity and economic efficiency of rice planting and thus meet the demand of modern agriculture for green and organic agricultural products. Summary of the Invention

[0004] The purpose of this invention is to overcome the aforementioned technical difficulties and provide a method for planting ultra-long grain green rice that is suitable for mountainous environments and can improve planting efficiency, thereby increasing the productivity and economic efficiency of rice cultivation and meeting the demand of modern agriculture for green and organic agricultural products.

[0005] To achieve the above objectives, the technical solution adopted by this invention is: a method for cultivating ultra-long grain green rice, comprising the following steps: (1) Variety selection: OsGS3 gene deletion type rice germplasm was selected, with grain length ≥7.8mm and chalkiness ≤5%; (2) Transplanting seedlings: Use biodegradable seedling stabilizing trays for transplanting. After inserting the seedlings into the transplanting holes, press down on the seedling stabilizing trays so that the top of the trays is embedded in the mud, ensuring that the seedling stabilizing trays do not float. (3) Seedling cultivation: When the seedling trays are dissolved to 60-70%, start rice-duck co-cultivation. Raise 15-18 15-day-old Guizhou small fragrant ducks per mu. During the tillering period, the water level is controlled at 2.0-3.0cm. Implement alternating wet and dry periods of 10 days of wetness and 5 days of dryness. (4) Pest and disease control: On the 5th day after transplanting, set up 20 bait traps per mu and on the 10th day, set up 8 Trichogramma egg cards per mu; spray with 5% bamboo vinegar solution on the 7th and 12th days after transplanting, and prohibit the release of Trichogramma within 72 hours after the last spray.

[0006] Furthermore, the seedling transplanting tray includes a tray body with 7 transplanting holes and multiple slow-release cavities inside the tray body. The slow-release cavities are filled with organic compound fertilizer liquid. Two folded spacing rods are provided on adjacent sides of the tray body and connected to one corner by a bidirectional damping hinge. When unfolded, they form a 90° angle with a fixed row spacing of 30±1cm.

[0007] Furthermore, the disc body is injection molded from 40% straw fiber and 60% polylactic acid. The disc body is provided with through-holes at equal intervals. The axis of the through-holes makes an angle of 40-50° with the plane of the disc body. The through-holes are in a conical structure with an upper diameter of 3mm and a lower diameter of 5mm. The conical structure reduces the insertion resistance of the disc body by 38-42%.

[0008] Furthermore, the row spacing of the planting holes on the tray is 30-32cm, the plant spacing is 21-25cm, and the edge holes are distributed in a regular hexagonal pattern.

[0009] Furthermore, the degradation rate of the disc increases linearly with the increase of water temperature. Within the water temperature range of 20-35℃, the complete degradation time is 3-5 days, and the error between the degradation cycle and the greening period is ≤12 hours.

[0010] Furthermore, the release rate of the slow-release fertilizer solution increases with increasing water temperature, and within a water temperature range of 20-35℃, the release rate is 1.5-3.0 ml per day.

[0011] Furthermore, in step (4), the bamboo vinegar solution is prepared by diluting the original bamboo vinegar solution with water at a ratio of 1:19 and adding 0.1% of tea saponin surfactant. The first bamboo vinegar solution spray is carried out on the 7th day after transplanting, with a dosage of 30L per mu, targeting the middle and lower leaves; the second bamboo vinegar solution spray is carried out on the 12th day after transplanting, and bees are prohibited from being released within 72 hours after spraying.

[0012] The present invention provides a method for cultivating ultra-long grain green rice, which has the following beneficial effects: This invention optimizes rice variety selection, utilizes biodegradable seedling trays and integrated management measures of rice-duck co-cultivation, and combines green pest and disease control with scientific rice management to optimize planting patterns, rationally utilize soil resources, reduce labor intensity and management costs, and achieve higher yields and quality to meet market demand for high-quality green rice. It effectively solves the problem of low productivity and economic efficiency of existing rice planting methods for planting long-grain rice in mountainous environments. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the seedling transplanting tray used in the ultra-long grain green rice planting method of the present invention.

[0014] Figure 2 This is a schematic diagram of the cross-sectional structure of the seedling transplanting tray used in the ultra-long grain green rice planting method of the present invention.

[0015] In the diagram, 1-disc body, 2-planting hole, 3-water permeable hole, 4-slow-release chamber, 5-spacing rod. Detailed Implementation

[0016] The technical solution of the present invention will be clearly and completely described below with reference to specific embodiments. The described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0017] This invention provides a method for cultivating extra-long grain green rice suitable for mountainous environments. It overcomes the limitations of applying mechanized equipment in irregular paddy fields, optimizes planting patterns, rationally utilizes soil resources, reduces labor intensity and management costs, and improves rice yield and quality to meet market demand for high-quality green rice. The method includes the following steps: For variety selection, rice germplasm with the OsGS3 gene deletion type was selected, with grain length ≥7.8mm and chalkiness ≤5%. Before sowing, the seeds were disinfected by soaking in 1% sodium hypochlorite for 20 minutes and then germinated at a constant temperature of 28℃ until they showed white sprouts. This application, by selecting the specific OsGS3 gene deletion type of Qian Changli No. 1 rice germplasm, can not only increase the grain length of rice but also effectively control chalkiness, so as to produce high-quality extra-long grain rice.

[0018] (2) Seedling transplanting: Biodegradable seedling stabilizing trays are used for transplanting. After inserting the seedlings into the transplanting holes, press the seedling stabilizing trays down so that the top of the trays is embedded in the mud, ensuring that the trays do not float. Figure 1-2 The seedling transplanting tray described in this application includes a tray body 1, which is injection molded from 40% straw fiber and 60% polylactic acid. This not only reduces the resistance to embedding in the mud but also improves the degradation rate of the tray body 1, with an error of no more than 12 hours from the greening period, thus achieving an environmentally friendly transplanting tool. The tray body 1 has evenly spaced through-holes 3, which helps reduce the embedding resistance of the tray body 1, ensures a stable supply of water and fertilizer, and maintains soil aeration to promote stable seedling growth. Experimental comparisons show that the axis of the through-holes 3 in this application forms an angle of 40-50° with the plane of the tray body 1, and has a conical structure with an upper diameter of 3mm and a lower diameter of 5mm (not shown in the figure). This conical structure reduces the embedding resistance of the tray body 1 by 38-42%.

[0019] The dimensions of the tray 1 in this application are 80cm long × 60cm wide × 5cm thick. The tray 1 has 7 transplanting holes 2. The row spacing of the transplanting holes 2 on the tray 1 is 30-32cm, and the plant spacing is 21-25cm. The edge holes are distributed in a regular hexagon. The design of the seedling transplanting tray provides precise transplanting position and fixation, which not only effectively improves the survival rate of seedlings and the uniform distribution of plants, but also enhances the stability and uniformity of seedlings in paddy fields. The use of biodegradable materials ensures that rice can obtain sufficient nutrients in the early stage of growth, reducing the uneven impact of traditional fertilization methods on the soil. The planting holes 2 of this application are arranged in the center of the tray 1 with a depth of 50mm and 6 holes with a depth of 30mm on the long edge. Two folded spacing rods 5 are provided on the adjacent sides of the tray 1 and connected to one corner by a bidirectional damping hinge. When unfolded, they are fixed at a row spacing of 30±1cm at 90°. The bidirectional damping hinge is made of biodegradable plastic material. The precise distribution of the planting holes 2 of this application optimizes the row spacing and plant spacing of the seedlings, so as to meet the tillering characteristics of rice and ensure sufficient light and space between the seedlings. The degradation rate of the tray 1 of this application increases linearly with the increase of water temperature. Within the water temperature range of 20-35℃, the complete degradation time is 3-5 days, and the error between the degradation cycle and the greening period is ≤12 hours.

[0020] This application provides a plurality of slow-release chambers 4 within the disc body 1. Further optimization results in four slow-release chambers 4 within the disc body 1, each aligned with the extension line of the central hole. This allows the fertilizer solution to diffuse radially, acting on the mud surrounding the roots, thus avoiding the risk of root burn from direct contact with the roots. Each slow-release chamber 4 is filled with an organic compound fertilizer solution, prepared by mixing 8 parts N, 5 parts P2O5, and 3 parts K2O by mass percentage. The volume of a single slow-release chamber 4 is 8.0 ± 0.5 ml. The release rate of the fertilizer solution from each slow-release chamber 4 increases with water temperature, reaching 1.5-3.0 ml per day within a water temperature range of 20-35℃. This allows the fertilizer solution to be automatically released according to water temperature changes, meeting the nutrient needs of seedlings at different stages.

[0021] The applicant conducted comparative tests on the dimensions of disc body 1 and the inclination angle of permeable holes 3, and concluded that: In the experimental group, the design parameters of this application were 80cm long × 60cm wide × 5cm thick. The test results showed that the floating seedling rate was 0%, the chalkiness was 3.2%, and the yield was 503kg / mu. Control group 1, only the size of plate 1 was changed, and the rest was the same as in Example 1. Its design parameters were 70cm long × 50cm wide × 5cm thick. The test results showed that its floating seedling rate was 9%, chalkiness was 4.1%, and yield was 462kg / mu. Control group 2, with only the inclination angle of permeable hole 3 changed, is the same as in Example 1, with a design parameter of 30°. The test results showed that its floating seedling rate was 5%, chalkiness was 3.8%, and yield was 478 kg / mu.

[0022] Therefore, it can be seen that the design of the seedling transplanting tray in this application provides a precise transplanting position and fixation, which not only effectively improves the survival rate of seedlings and the uniform distribution of plants, but also enhances the stability and uniformity of seedlings in paddy fields.

[0023] (3) Seedling cultivation: When the seedling trays are dissolved to 60-70% in 3 days, rice-duck co-cultivation is started. The activity of the duck flock can promote the dispersion of fragments and promote the degradation rate. 15-18 15-day-old Guizhou small fragrant ducks with a weight of 0.4-0.6kg are raised per mu. According to the monitoring of the average daily weeding of rice and duck in this application, the weeding area is 12㎡ / duck × 15 ducks = 180㎡, and the coverage rate reaches 95%. The water level during the tillering period is controlled at 2.0-3.0cm, and the alternation of wet and dry periods of 10 days and 5 days of dry period is implemented.

[0024] The rice-duck co-cultivation model presented in this application, through comparative experiments, shows that when ducks are released at 50% dissolution of the rice tray, the seedling damage rate is 14%; when ducks are released at 70% dissolution, weed biomass increases by 37%; and when ducks are released at 63% dissolution, the seedling damage rate is 2.3%, while the weed control rate is 91%. Therefore, this application demonstrates that initiating rice-duck co-cultivation at 63% dissolution of the transplanting tray, combined with precise water level control and the application of specific fertilizers, can reduce labor costs and dependence on chemical pesticides, achieving a greener and more sustainable agricultural production method. The ducks' activity controls weeds and reduces pests and diseases, while the alternating wet and dry water management during the tillering stage promotes rice root development, further improving rice yield and quality. It also effectively controls paddy field pests, improves soil structure, and ensures continuous fertilizer release, thus enhancing rice quality.

[0025] For pest and disease control, 20 attractant traps per acre are deployed on the 5th day after transplanting, and 8 Trichogramma egg cards per acre are deployed on the 10th day. A 5% bamboo vinegar solution is sprayed on the 7th and 12th days after transplanting, and the release of Trichogramma wasps is prohibited for 72 hours after the last spray. The bamboo vinegar solution is prepared by diluting bamboo vinegar concentrate with water at a ratio of 1:19 and adding 0.1% tea saponin surfactant. This mixture of bamboo vinegar solution and tea saponin surfactant effectively controls pests and diseases through two targeted foliar sprays, reducing the use of chemical pesticides and ensuring the safety and green quality of the rice. The first bamboo vinegar solution spray is carried out on the 7th day after transplanting, using 30L per acre, targeting the middle and lower leaves; the second bamboo vinegar solution spray is carried out on the 12th day after transplanting, and the release of wasps is prohibited for 72 hours after the spray. Throughout the growth cycle, the use of attractants and Trichogramma egg cards effectively controls pests and diseases, reduces the use of chemical pesticides, and ensures green rice production.

[0026] The method for planting extra-long grain green rice provided in this application was used as an experimental group, and the method for planting extra-long grain rice using traditional rice planting methods was used as a control group. The results were obtained by comparing the floating seedling rate 7 days after transplanting, the number of effective panicles / plant during the tillering stage, the incidence of cyclone blight after heavy rain, the standard deviation of rice grain length, the yield per mu, and the proportion of high-quality rice. Experimental group: 0% floating seedling rate 7 days after transplanting, 13.2 effective panicles / plant at tillering stage, 2.1% incidence of cyclohexane after heavy rain, 0.12mm standard deviation of rice grain length, 503kg / mu yield, and 92% high-quality rice. Control group: 18% floating seedling rate 7 days after transplanting, 10.7 effective panicles / plant during tillering stage, 9.8% incidence of cyclohexane after heavy rain, 0.31 mm standard deviation of rice grain length, 428 kg / mu yield, and 65% high-quality rice.

[0027] Therefore, the method for cultivating ultra-long grain green rice provided in this application represents a significant improvement over traditional methods. This method, combined with the seedling-stabilizing transplanting tray provided in this application, optimizes the management of fertilizer and liquid in the early stages of seedling growth, ensuring effective matching with the nutritional needs of rice throughout its growth cycle. On one hand, the seven-hole layout of the tray ensures stable seedling growth while the biodegradable structure further guarantees stable growth. On the other hand, the slow-release organic compound fertilizer in the tray provides continuous nutrition to the rice, promoting healthy seedling growth. This invention provides a method for cultivating ultra-long grain green rice suitable for mountainous environments, overcoming the limitations of using mechanized equipment in irregular paddy fields. By optimizing rice variety selection, using biodegradable seedling-stabilizing transplanting trays and integrated rice-duck farming management, combined with green pest and disease control and scientific rice management, the planting model is optimized, soil resources are rationally utilized, labor intensity and management costs are reduced, resulting in higher yields and quality to meet market demand for high-quality green rice.

[0028] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A method for cultivating ultra-long grain green rice, characterized in that, Includes the following steps: (1) Variety selection: OsGS3 gene deletion type rice germplasm was selected, with grain length ≥7.8mm and chalkiness ≤5%; (2) Transplanting seedlings: Use biodegradable seedling stabilizing trays for transplanting. After inserting the seedlings into the transplanting holes, press down on the seedling stabilizing trays so that the top of the trays is embedded in the mud, ensuring that the seedling stabilizing trays do not float. (3) Seedling cultivation: When the seedling trays are dissolved to 60-70%, start rice-duck co-cultivation. Raise 15-18 15-day-old Guizhou small fragrant ducks per mu. During the tillering period, the water level is controlled at 2.0-3.0cm. Implement alternating wet and dry periods of 10 days of wetness and 5 days of dryness. (4) Pest and disease control: On the 5th day after transplanting, set up 20 bait traps per mu and on the 10th day, set up 8 Trichogramma egg cards per mu; spray with 5% bamboo vinegar solution on the 7th and 12th days after transplanting; and prohibit the release of Trichogramma within 72 hours after the last spray. The seedling transplanting tray includes a tray body with 7 transplanting holes and multiple slow-release cavities inside the tray body. The slow-release cavities are filled with organic compound fertilizer liquid. Two folded spacing rods are provided on the adjacent sides of the tray body and connected to one corner by a bidirectional damping hinge. When unfolded, they form a 90° fixed row spacing of 30±1cm. The disc body is injection molded from 40% straw fiber and 60% polylactic acid. The disc body has through-holes at equal intervals. The axis of the through-holes makes an angle of 40-50° with the plane of the disc body. The through-holes have a conical structure with an upper diameter of 3mm and a lower diameter of 5mm. The conical structure reduces the insertion resistance of the disc body by 38-42%. The planting holes on the tray are spaced 30-32cm apart in rows and 21-25cm apart in plants, with the edge holes distributed in a regular hexagonal pattern. The degradation rate of the disc increases linearly with the increase of water temperature. Within the water temperature range of 20-35℃, the complete degradation time is 3-5 days, and the error between the degradation cycle and the greening period is ≤12 hours. The release rate of the slow-release fertilizer solution increases with increasing water temperature, and within a water temperature range of 20-35℃, the release rate is 1.5-3.0 ml per day.

2. The method for cultivating ultra-long grain green rice according to claim 1, characterized in that: In step (4), the bamboo vinegar solution is prepared by diluting the original bamboo vinegar solution with water at a ratio of 1:19 and adding 0.1% tea saponin surfactant. The first bamboo vinegar solution spray is carried out on the 7th day after transplanting, with a dosage of 30L per mu, targeting the middle and lower leaves. The second bamboo vinegar solution spray is carried out on the 12th day after transplanting. Bees are prohibited from being released within 72 hours after spraying.

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