Intelligent high-yield cultivation method for rice

Abstract

The invention relates to the field of rice planting, in particular to an intelligent high-yield rice cultivation method which comprises the following steps: seed soaking: putting rice seeds into a special seed soaking solution for seed soaking; a seedling raising substrate is prepared and put into a seedling tray, a group of rice seeds are put into the seedling raising substrate every 3 cm < 2 >-4 cm < 2 >, and 2-4 rice seeds are put into each group; germination accelerating: placing the seedling tray after sowing into a darkening chamber for germination accelerating, and after germination, transferring the seedling tray to a field seedling raising bed for management until seedlings grow to 20-35cm; ploughing: ploughing a field area to be transplanted, wherein the ploughing straightness deviation is less than or equal to 2.5 cm, and the ploughing connection line spacing deviation is less than or equal to 2.5 cm; rice seedlings cultivated in the seedling tray are placed on rice seedling transplanting equipment to be subjected to mechanical rice seedling transplanting, the rice seedling transplanting straightness deviation is smaller than or equal to 2.5 cm, and the rice seedling transplanting connection line spacing deviation is smaller than or equal to 2.5 cm. By implementing the scheme, the acre yield of the rice in the hilly area is increased.

Description

Technical Field

[0001] The present invention relates to the field of rice cultivation, and particularly to an intelligent high-yield cultivation method for rice. Background Art

[0002] As an important food crop globally, rice is the staple food for more than half of the world's population and plays a crucial role in ensuring food security and stable supply. China is a major rice-growing country with a wide planting area, and rice cultivation in hilly areas occupies an important position in China's rice production. However, due to its special topography and climate, the rice yield in hilly areas is not high.

[0003] Through long-term analysis and research in the process of rice cultivation, the applicant found that the main reasons for the low rice yield in hilly areas are as follows:

[0004] 1. High skipping rate: When sowing traditionally, rice is usually scattered disorderly in seedling trays, so there are problems of insufficient and uneven seeding density, resulting in no seedlings in some areas. Since mechanical transplanting is used in later transplanting, there is a problem that the mechanical equipment cannot pick up seedlings during seedling picking, leading to skipping.

[0005] 2. Low seedling quality: To solve the problem of skipping caused by the empty picking of seedlings by the transplanter after the disorderly sowing mentioned above, farmers will increase the seeding density. On the one hand, this will lead to an increase in the amount of seeds used and a high seed cost. At the same time, due to the high density, the seedlings have insufficient nutrient supply and poor ventilation and lighting, resulting in slender and poor-quality seedlings.

[0006] 3. Serious root injury and long green-recovery period. In the traditional seedling-raising method, the roots are all intertwined, and the roots are seriously damaged when the seedling blocks are split during transplanting. At the same time, disorderly sowing will lead to a large seeding density in some areas, and problems such as seedling injury, leaf dropping, and even stem breakage of seedlings will occur when the transplanter picks up seedlings in local high-density areas. After the seedlings are transplanted, it usually takes 5-7 days to turn green, which is not conducive to the growth and yield improvement of seedlings.

[0007] 4. The space utilization rate in the field has not been maximized: In the operation of traditional transplanters, the straightness of transplanting is poor, usually with a straight-line deviation of about 20 cm, and the stability of the adjacent row spacing is poor. Therefore, in order to ensure that the minimum distance between adjacent two seedling rows can reach the normal growth range, the distance between the two seedling rows needs to be increased at the intersection of round-trip transplanting. As a result, most of the space in this area cannot be effectively utilized. Coupled with the irregularity of the fields in hilly areas, about 10% of the space per mu of the field cannot be transplanted, and the actual utilization rate is less than 90%.

[0008] Therefore, it is necessary to study a method to improve the rice yield in hilly areas. Summary of the Invention

[0009] The present invention aims to provide an intelligent high-yield cultivation method for rice to increase the per-mu yield of rice in hilly areas.

[0010] To achieve the above object, the present invention adopts the following technical solution: an intelligent high-yield cultivation method for rice, comprising the following steps,

[0011] Seed soaking: putting rice seeds into a special seed soaking solution for seed soaking;

[0012] Sowing: preparing a seedling-raising substrate and filling it into seedling trays, and putting a group of soaked rice seeds into each 3 cm 2 - 4 cm 2 of the seedling-raising substrate, with 2 - 4 rice seeds in each group;

[0013] Germination acceleration: putting the sown seedling trays into a darkening room for germination acceleration, controlling the temperature in the darkening room at 32°C - 35°C and the humidity at 80% - 90%, and transferring the seedling trays to the field seedling-raising bed for management after germination until the seedlings grow to 20 - 35 cm;

[0014] Cultivating land: cultivating and leveling the paddy field area to be transplanted, with the straightness deviation of cultivating land ≤ 2.5 cm and the deviation of the connecting row spacing of cultivating land ≤ 2.5 cm;

[0015] Transplanting: putting the seedling trays on a transplanting device for mechanical transplanting, with the straightness deviation of transplanting ≤ 2.5 cm and the deviation of the connecting row spacing of transplanting ≤ 2.5 cm.

[0016] Preferably, as an improvement, the special seed soaking solution comprises water, aspartic acid, glutamic acid, potassium indolebutyrate, and seaweed essence.

[0017] Preferably, as an improvement, the weight parts of each component in the special seed soaking solution are: 30 - 60 parts of aspartic acid, 30 - 60 parts of glutamic acid, 0.4 - 0.6 parts of potassium indolebutyrate, 40 - 60 parts of seaweed essence, and the balance is water.

[0018] Preferably, as an improvement, during seed soaking, the seed soaking temperature is 28 - 35°C and the seed soaking time is 8 - 12 h.

[0019] Preferably, as an improvement, a plurality of root-growing grooves are provided on the seedling trays.

[0020] Preferably, as an improvement, before transplanting, first open both ends of the shed film on the seedling-raising bed for 2 - 3 days, then lift a part of the shed film along its axis for 2 - 3 days, and then lift the entire shed film until the seedlings are transplanted.

[0021] Preferably, as an improvement, after the seedling-raising substrate is laid on the seedling tray, a number of breeding pits are pressed on the seedling-raising substrate, each breeding pit corresponds to a root-growing groove one by one, the seeds of each group are sown in the breeding pits, and then the seedling tray is covered with soil and watered.

[0022] The principle and advantages of this solution are as follows:

[0023] To solve the above problems, the applicant has made the following adjustments in all aspects of rice cultivation:

[0024] First, in seed soaking:

[0025] The applicant uses a special seed soaking solution independently developed by the project team. This special seed soaking solution is a further optimization of the patent formula applied by the applicant in 2022 and authorized in August 2024. The original formula can effectively improve the germination rate and seedling establishment rate of seeds, making their germination rate and seedling establishment rate both higher than 95%, and can also effectively improve the disease resistance of seedlings. In recent years, the applicant has improved the original formula in response to the changing climate in hilly areas (such as sudden drought). After long-term experimental optimization, it is finally determined that seaweed extract is added to the original formula. First of all, seaweed extract is rich in organic matter and various trace elements such as phosphorus, potassium, calcium, magnesium, iron, zinc, etc. These elements are stored in the seeds during the seed soaking process, providing sufficient nutrients for the later germination and growth of the seeds, and ensuring better growth of the seedlings.

[0026] At the same time, the combination of betaine, aspartic acid, and glutamic acid in seaweed extract can better participate in the regulation of the opening and closing of seedling stomata. Betaine can affect the physiological state of stomatal guard cells, and aspartic acid and glutamic acid jointly regulate the opening and closing degree of stomata by participating in relevant signal transduction processes, enabling the seedlings to better control gas exchange and water loss under different environmental conditions, and optimizing the efficiency of photosynthesis and respiration. At the same time, the effective combination of the three can enhance the osmotic adjustment ability of the seedlings, and can more effectively help the seedlings maintain water balance under adverse conditions such as drought and high salt, ensuring that the seedlings can still maintain normal physiological functions in adverse environments. At the same time, the combination of betaine and indole butyric acid potassium can induce the expression of stress-resistant related genes in the seedlings, prompting the seedlings to synthesize more stress-resistant substances such as antioxidant enzymes and proline. These substances can scavenge free radicals in the body, reduce oxidative damage, further enhance the resistance of the seedlings to adverse conditions such as low temperature, high temperature, and pests and diseases, and improve the survival rate of the seedlings in adverse environments.

[0027] As a plant growth regulator, potassium indolebutyrate can stimulate the division and elongation of root cells in seedlings. Mannitol and betaine in seaweed essence can provide energy, nutrients, carbon sources, etc. for the metabolism, division and elongation of root cells. The combination of the three can make the division of root cells more active, prompting the seedlings to quickly grow more lateral roots and fibrous roots, making the roots more developed, taking root deeper and more firmly. At the same time, the combination of the three also helps to improve the activity of various enzymes in the roots, such as dehydrogenase, cytochrome oxidase, etc., thereby enhancing the respiration of the roots and providing more energy for the growth and absorption of the roots. At the same time, it can also enhance the stress resistance of the roots and improve the adaptability of the roots to adverse environments, such as resisting the invasion of diseases and pests in the soil and reducing the occurrence of root diseases.

[0028] Alginic acid in seaweed essence can promote the synthesis of photosynthetic pigments such as chlorophyll in the leaves of seedlings, increasing the ability of the leaves to capture and utilize light energy. Mannitol can provide a carbon source and energy for the dark reaction of photosynthesis, supporting the fixation and assimilation process of carbon dioxide. Potassium indolebutyrate can regulate the growth and development of leaves, increasing the leaf area and improving the photosynthesis efficiency. The synergistic effect of the three can significantly enhance the photosynthesis of seedlings, thereby increasing the accumulation of photosynthetic products, providing sufficient energy and substances for the growth of seedlings, and making the seedlings stronger.

[0029] In summary, the optimized seed soaking solution can not only improve the germination rate, seedling rate and disease resistance of seeds, but also improve the survival rate of seedlings in adverse environments, thereby increasing the per mu yield of rice; and the thickness of the seedling stems, plant height, number of white roots (main roots), root weight, etc. have all been effectively improved, further improving the growth quality of seedlings after transplanting, thereby increasing the tillering rate and seed setting rate of seedlings in the later stage, and then increasing the rice yield.

[0030] Secondly, in terms of sowing:

[0031] In this scheme, a group of rice seeds are placed in the seedling raising substrate every 3 cm 2 - 4 cm 2 . The rice seeds are sown in groups, and the occupied space of each group of seeds is 3 cm 2 - 4 cm 2 . If the occupied space is less than this range, after the seeds grow into seedlings, it will lead to problems such as insufficient light, poor ventilation and insufficient nutrient absorption for the seedlings, resulting in poor root development, slender stems and slow growth of the seedlings. When the occupied space is greater than this range, the growth advantage of the seedlings is not obvious and it is not conducive to the full utilization of land resources. Therefore, within the above range, it can not only ensure the best growth space for the seedlings, enabling them to grow vigorously, but also ensure the effective utilization rate of space resources.

[0032] Secondly, the rice seeds in each group are sown in a rectangular array. During the growth process of the seedlings, a vertically unobstructed straight-line channel is formed between the seedlings in each group, whether horizontally, vertically or diagonally. Therefore, it has good ventilation and air permeability. On the one hand, it enhances the photosynthesis of the seedlings, provides sufficient energy and material basis for the growth and development of the seedlings, makes the seedlings grow sturdily, avoids the risk of being damaged during transplantation, and improves their survival rate. At the same time, sufficient oxygen in the air enables the roots to better carry out aerobic respiration to produce more energy, which is beneficial to the growth and extension of the roots, makes the roots more developed. After the seedlings are transplanted in the later stage, the seedlings can quickly take root and stabilize, so as to improve their survival rate and lodging resistance. On the other hand, it greatly reduces the occurrence of diseases and pests: good ventilation and air permeability can reduce the air humidity between rice plants, making the environment unfavorable for the breeding and spread of germs and pests, and enabling the rice to grow healthily.

[0033] Through the orderly sowing method, the seedlings in each group are arranged in an orderly manner, which is beneficial for the rice transplanting equipment to accurately pick the seedlings during the process of picking seedlings, and the picking rhythm is smooth and efficient. At the same time, there will be no problem of missing picking and missing planting, thereby increasing the per-mu yield of rice.

[0034] Finally, in the rice transplanting stage:

[0035] Both the deviation of the straightness of rice transplanting and the deviation of the row spacing of rice transplanting connection are controlled below 2.5 cm to ensure the straightness of each seedling row and the spacing between each seedling row. Therefore, it avoids the problem that some spaces cannot be transplanted due to the large deviation of the straightness of traditional rice transplanting and the deviation of the row spacing of rice transplanting connection. Through the above settings, the utilization rate of rice transplanting in the field is increased to more than 95%, which is at least 5% higher than the traditional method, thereby increasing the per-mu yield of rice.

[0036] At the same time, through the above parameter control, a relatively straight ventilation channel is formed between each seedling row. Therefore, it has good ventilation and air permeability. Especially when the seedlings grow to the stage of flowering and ear bearing, each group of rice is relatively lush, and the adjacent rice plants are in close contact. Its ventilation and air permeability will be greatly weakened compared with the seedling stage. Therefore, having good ventilation and air permeability at this stage is particularly important for the growth of rice. In addition to reducing the occurrence of diseases and pests, on the one hand, it can expand the range of pollen transmission to improve the pollination success rate, thereby increasing the ear-bearing amount; on the other hand, good ventilation and air permeability provide sufficient oxygen for the development of rice flower organs, enhance the respiration of flower cells, provide more energy for the growth and development of flowers, contribute to the normal differentiation and development of flower organs, and improve the flowering quality. On the other hand, there is sufficient carbon dioxide supply around the leaves, thereby improving the photosynthesis efficiency, being able to produce more photosynthetic products, providing sufficient nutrients for the growth and development of the ear, promoting the filling and plumpness of the ear grains, and reducing the amount of empty grains.

[0037] In summary, the advantages of this solution are summarized as follows:

[0038] 1. The mu yield is significantly improved: By making coordinated adjustments respectively in the stages of seed soaking, sowing, and transplanting as described above, the germination rate of seeds and various growth indicators of seedlings are significantly improved. In this solution, the leaf length, leaf width, plant height, stem diameter, root length, number of white roots, and root weight indicators of the seedlings are increased by 9.59%, 10.5%, 8.9%, 21.7%, 7.1%, 14.5%, and 18.1% respectively compared with the traditional cultivation method. Due to the better quality of the seedlings themselves, it provides a good foundation for their tillering, flowering, and ear formation in the later stage, and finally achieves the purpose of high yield. Coupled with the strict control of the straightness of transplanting and the deviation of the connecting row spacing of transplanting, the transplanting amount of the field is increased, and the mu yield is further improved. Experimental data show that the cultivation method of this solution can significantly increase the yield of various varieties of rice, and the yield increase rate is at least above 12%.

[0039] 2. The seed consumption is low. The seed consumption per tray using this solution is 40g - 45g, which is about 50% less than that of the traditional sowing method (80 - 90g per tray). Calculated by the seed consumption per mu, although the number of seedling trays used per mu will increase, the overall seed consumption per mu is saved by 25% - 30%.

[0040] 3. The re - tillage rate is low. The straight - line deviation of conventional tillage is usually about 20cm. Therefore, in order to avoid missed tillage problems, when the tillage equipment finishes one row and then returns to till the next row, at least 20cm of space needs to be re - tilled at the intersection of the round - trip tillage. Coupled with turning around, the re - tillage rate of one mu of field reaches more than 20%. In the case of irregular fields, the re - tillage rate will be even higher. In this solution, the straight - line deviation of tillage is controlled at ≤2.5cm, and the deviation of the connecting row spacing of tillage is controlled at ≤2.5cm, so that the re - tillage rate of tillage and land preparation is controlled below 4%, which is 16% lower than the re - tillage rate of the traditional tillage method, greatly improving the tillage efficiency, reducing the operation cost, reducing fuel consumption, and reducing environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a display diagram of the seedlings of the present invention.

[0042] Figure 2 It is a display diagram of the seedlings of Comparative Example 1.

[0043] Figure 3 It is a display diagram of the seedlings of Comparative Example 3.

[0044] Figure 4 It is a growth diagram of the seedlings of Example 1.

[0045] Figure 5 It is a growth diagram of the seedlings of Example 3.

[0046] Figure 6This is the growth chart of the seedlings of the present invention.

[0047] Figure 7 This is the growth chart of the seedlings of Comparative Example 3. Detailed implementation manners

[0048] The following is a further detailed description through specific implementation manners:

[0049] Example 1

[0050] An intelligent high-yield cultivation method for rice includes the following steps:

[0051] Seed soaking: Put rice seeds into a special seed soaking solution for seed soaking. The special seed soaking solution includes 0.5 kg of aspartic acid, 0.5 kg of glutamic acid, 5 g of potassium indolebutyrate, and 0.5 kg of seaweed essence. Mix the special seed soaking solution evenly with 100 kg of water, and then put rice seeds in according to a mass ratio of 1:1 for seed soaking. In this example, the constant-temperature seed soaking method is adopted, the seed soaking temperature is 32 °C, and the seed soaking time is 12 h.

[0052] Sowing: Prepare a cultivation seedling raising substrate soil by mixing 7 parts of soil and 3 parts of substrate and spread it flat on the seedling tray. Put a group of soaked rice seeds every 3 cm 2 -4 cm 2 in the seedling raising substrate. When the sowing range of each group is less than 3 cm 2 , due to insufficient nutrient supply and relatively weakened ventilation and lighting environment, the growth indicators of the seedlings are relatively weak. And when the sowing range is greater than 4 cm 2 later, the growth advantage of the seedlings is not obvious and it is not conducive to the full utilization of land resources. In this example, it is put at 3.5 cm 2 , with 2 rice seeds in each group, and the rice seeds of each group are arranged in a rectangular array. There are multiple root-growing grooves on the seedling tray, and each root-growing groove is used to correspondingly hold the main root systems of a group of rice seeds.

[0053] Set multiple root-growing grooves corresponding to each group of rice seeds on the seedling tray. In this way, during the growth process of the rice seeds, their main root systems will grow independently in each root-growing groove, and only a small part of the secondary roots grow horizontally along the groove opening of the root-growing groove and are intertwined with the secondary roots of adjacent seedlings. In this way, on the one hand, it is beneficial to connect all the seedlings on a seedling tray into a whole, facilitating the unified removal and feeding of all the seedlings in a seedling tray during the rice transplanting process; on the other hand, since the main root systems all grow independently and only a few secondary roots are intertwined, it is beneficial to the rapid separation of each group of seedlings during the rice transplanting process. More importantly: it avoids the situation in the traditional method where the main root systems of adjacent groups of seedlings are intertwined, resulting in the breakage of the main root systems of the seedlings when separating each group of seedlings and affecting their growth and development.

[0054] Further, after the seedling-raising substrate soil is spread on the seedling tray, a number of breeding pits are pressed on the seedling-raising substrate soil. Each breeding pit corresponds to a root-growing groove one by one. Each group of seeds is sown in the breeding pit, and then the seedling tray is covered with soil and watered. The purpose of setting the breeding pits is to ensure that each group of seeds grows corresponding to the root-growing grooves and at the same time avoid the problem of seed displacement during subsequent soil covering or watering.

[0055] Germination acceleration: After sowing, the seedling tray is placed in a darkening chamber for germination acceleration. The temperature in the darkening chamber is 30°C and the humidity is 85%. After germination (within 1 cm), the seedling tray is transferred to the field seedling-raising bed for management until the seedling grows to 20 - 35 cm for transplanting and rice transplanting. In this implementation, as an optimal option, when the seedling grows to 20 - 30 cm, it is transplanted. The seedlings of this length are more beneficial for tillering after transplantation.

[0056] In addition, 1 - 2 weeks before transplanting and rice transplanting, when the average temperature reaches above 16°C, first open both ends of the greenhouse film on the seedling-raising bed for 2 - 3 days, then lift one-third of the greenhouse film along its axis for 2 - 3 days, and then lift the entire greenhouse film until the seedlings are transplanted. This process is to enable the seedlings that have been growing in the greenhouse film to gradually adapt to the natural environment and avoid the problem of withered seedlings due to sudden environmental changes after transplantation.

[0057] Cultivating the land: The paddy field area to be transplanted is cultivated. A Beidou agricultural machinery automatic navigation driving system is installed on the cultivating equipment. The straightness deviation of cultivating is ≤2.5 cm, and the deviation of the connecting row spacing of cultivating is ≤2.5 cm.

[0058] Rice transplanting: After removing the seedling tray at the bottom of each plate of seedlings, each plate of seedlings is placed on the rice transplanting equipment for mechanized rice transplanting. A Beidou agricultural machinery automatic navigation driving system is installed on the rice transplanting equipment. The straightness deviation of rice transplanting is ≤2.5 cm, and the deviation of the connecting row spacing of rice transplanting is ≤2.5 cm.

[0059] For traditional manual driving of rice transplanters, not only is the straightness of rice transplanting poor, but also the stability of the adjacent row spacing is poor. At the same time, 1 person is needed to drive the rice transplanter and 1 person is responsible for observing the seedling box to replenish seedlings, resulting in a relatively high labor cost. By adopting the above method, the utilization rate of rice transplanting in the field can be improved, the yield per mu of rice can be increased, and the ventilation and air permeability between the rows of seedlings can be improved, thus improving the growth quality of the seedlings. At the same time, 1 person can be reduced. That is, in this solution, by installing a Beidou agricultural machinery automatic navigation driving system, there is no need for manual input of too much energy for driving, and only auxiliary driving is required when turning. Therefore, only 1 person is needed to drive the rice transplanter and replenish seedlings during rice transplanting.

[0060] Example 2: Different from Example 1, in the sowing process, 3 seeds are sown.

[0061] Example 3: Different from Example 1, in the sowing process, 4 seeds are sown.

[0062] Comparative Example 1: It is a traditional rice cultivation method, that is, sowing seeds disorderly, soaking seeds with a traditional seed soaking agent (in this experiment, prochloraz seed soaking solution is selected), and traditional transplanting method.

[0063] Comparative Example 2: Sow seeds disorderly, and the other steps are the same as those in Example 3.

[0064] Comparative Example 3: Soak seeds with a traditional seed soaking agent (prochloraz seed soaking solution), and the other steps are the same as those in Example 3.

[0065] Comparative Example 4: Adopt the traditional transplanting method (that is, the straightness of transplanting and the deviation of the connecting row spacing during transplanting are uncontrollable), and the other steps are the same as those in Example 3.

[0066] Experiment

[0067] Three regions in Chongqing were used as experimental sites respectively, and Banan District, Yongchuan District, and Kaizhou District were selected. Among them, the rice variety used in the experiment in Kaizhou District is "Yixiangyou 2115"; the rice seeds used in the experiment in Yongchuan District are "Shen 9 You 28"; the rice seeds used in the experiment in Banan District are "Yexiangyou Haisi".

[0068] Table 1 observes the germination rate and bud length of seeds by soaking seeds with different seed soaking agents in Example 1 and Comparative Example 3.

[0069]

[0070] Table 1

[0071] In Table 1, the special seed soaking solution is compared with the traditional seed soaking agent to compare the growth trend of the seedlings in the first 9 days. It can be seen that the germination speed of the seedlings is faster, the germination rate is higher, and the growth speed of rice germination is also faster under the special seed soaking solution. On the 9th day, the bud length of the seedlings using the special seed soaking solution is significantly higher than that of the seedlings using the traditional seed soaking agent. During the observation period, the germination rate of the special seed soaking solution increased by an average of 4% compared with the conventional seed soaking agent, and the growth speed of the seedlings increased by an average of 7.5%. It shows that using the special seed soaking solution is more conducive to the early and rapid growth of seedlings and has a higher germination rate.

[0072] The data in Table 2 were collected from the seedlings at the Banan District experimental site. Among them, the seedling raising time in Banan District was April 4, 2024, the data collection time was May 6, 2024, and the seedling age was 32 days.

[0073]

[0074]

[0075] Table 2

[0076] Through the data in Table 2 and the appendix Figure 1-3It can be seen that the leaf length, leaf width, plant height, stem diameter, root length, number of white roots, and root weight indicators of the seedlings cultivated according to this solution are all at the optimal level. Taking Example 1 as an example, the various indicators of the seedlings are respectively improved by 9.59%, 10.5%, 8.9%, 21.7%, 7.1%, 14.5%, and 18.1% compared with Comparative Example 1 (traditional cultivation method).

[0077] From the experimental data in Examples 1-3 in Table 2, it can be seen that when 2 seeds are put in, the leaf length, plant height, and stem diameter indicators are slightly better than those of 4 seeds; however, the root length, number of white roots, and root weight indicators are slightly weaker than those of 4 seeds.

[0078] Among them, in Comparative 2, the growth of the seedlings in each area of the seedling tray is uneven. The seedlings grow better in places with low seeding density, but the various indicators of the seedlings are relatively weak in places with high seeding density.

[0079] The data in Table 3 were respectively collected from the rice yield per mu at the experimental sites in Kaizhou District, Yongchuan District, and Banan District, and are the weights of the rice after impurity removal and air drying, unit: kg.

[0080]

[0081] Table 3

[0082] The experimental data show that: the cultivation method of this solution can significantly increase the yield per mu of various varieties of rice, and the yield increase rate is at least above 10%. Specifically as follows:

[0083] The rice variety used in the Kaizhou District experiment is "Yixiangyou 2115", and its yield per mu is as high as 662.95 kg. Compared with the traditional cultivation method (the yield per mu of Comparative Example 1 is 568.2 kg), it has an increase of 94.75 kg, and the growth rate is 16.7%.

[0084] The rice variety used in the Yongchuan District experiment is "Shen 9 You 28", and its yield per mu is as high as 766.23 kg. Compared with the traditional cultivation method (the yield per mu of Comparative Example 1 is 680.85 kg), it has an increase of 85.38 kg, and the growth rate is 12.54%.

[0085] The rice seeds used in the Banan District experiment are "Yexiangyou Haisi", and its yield per mu is as high as 622.86 kg. Compared with the traditional cultivation method (the yield per mu of Comparative Example 1 is 537.54 kg), it has an increase of 85.32 kg, and the growth rate is 15.87%.

[0086] In addition, it can be seen from the experimental data that the yield is the best when sowing 4 seeds, but compared with sowing 3 seeds, the increase in yield is not obvious. Considering the seeding rate and yield comprehensively, sowing 3 seeds is the best.

[0087] The above are only embodiments of the present invention, and common general technical solutions and / or characteristics in the solution are not described in detail herein. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope claimed in this application shall be subject to the content of its claims, and the specific implementation manners and the like recorded in the specification can be used to interpret the content of the claims.

Claims

1. A method for intelligent high-yield rice cultivation, characterized in that: The following steps are included: Seed soaking: Put the rice seeds into a special soaking liquid for soaking; Sowing: Prepare the seedling medium and put it into the seedling tray, and plant it every 3cm 2 -4cm 2 A group of soaked rice seeds are placed in the seedling raising medium, with 2-4 rice seeds in each group; Germination: Place the seedling trays after sowing in a dark room for germination. The temperature in the dark room is controlled at 32℃-35℃ and the humidity is 80%-90%. After germination, transfer the seedling trays to the field seedling bed for management until the seedlings grow to 20-35cm; Cultivated land: The field to be transplanted should be tilled and prepared, the straightness deviation of the cultivated land should be ≤2.5cm, and the spacing deviation of the connected rows of cultivated land should be ≤2.5cm; Transplanting: Place the seedling tray on the transplanting equipment for mechanized transplanting. The straightness deviation of transplanting is ≤2.5cm, and the spacing deviation of transplanting rows is ≤2.5cm.

2. The intelligent high-yield rice cultivation method according to claim 1, characterized in that: The special seed soaking solution comprises water, aspartic acid, glutamic acid, potassium indolebutyrate and seaweed extract.

3. The intelligent high-yield rice cultivation method according to claim 2, characterized in that: The weight proportions of the components in the special seed soaking solution are: 30-60 parts of aspartic acid, 30-60 parts of glutamic acid, 0.4-0.6 parts of potassium indolebutyrate, 40-60 parts of seaweed essence, and the balance of water.

4. The intelligent high-yield rice cultivation method according to claim 3, characterized in that: The soaking temperature is 28-35℃, and the soaking time is 8-12h.

5. The intelligent high-yield rice cultivation method according to claim 4, characterized in that: A plurality of root cultivation grooves are arranged on the seedling tray.

6. The intelligent high-yield rice cultivation method according to claim 5, characterized in that: Before transplanting rice seedlings, open both ends of the greenhouse film on the seedling bed for 2-3 days, then lift a part of the greenhouse film along its axis for 2-3 days, and then lift the entire greenhouse film until the seedlings are transplanted.

7. The intelligent high-yield rice cultivation method according to claim 6, characterized in that: After the seedling raising substrate is spread on the seedling tray, several breeding pits are pressed on the seedling raising substrate, each breeding pit corresponds to the root raising groove one by one, each group of seeds is sown in the breeding pit, and then the seedling tray is covered with soil and watered.

Images