Ratoon rice first season rice agricultural machinery and agricultural technology integrated mechanical planting and harvesting method

Abstract

The invention discloses a mechanical planting and harvesting method integrating ratooning rice first season rice agricultural machinery and agricultural technology, and solves the problem that ratooning rice axillary buds enter mud due to the fact that ratooning rice seedlings are rolled by a combine harvester in the harvesting process when the ratooning rice first season is harvested in the prior art. According to the method, ratooning rice is planted, and the ratooning rice is planted in a reserved row machine transplanting mode of a four-row or six-row rice transplanter; when the first season rice is mature, water in the rice field is drained and aired, and harvesting conditions are established; when the first season rice is harvested, the combined harvester adjusts the track gauge of the combined harvester according to the line spacing of the reserved line machine transplanting mode; management of ratooning rice after harvesting: immediately irrigating and protecting seedlings after the ratooning rice is harvested, and applying a fertilizer on the harvesting day or the second day, so that the ratooning seedlings are neat and strong. According to the reserved row machine transplanting mode, the combine harvester can conveniently move through reserved rows, rolling compaction of the combine harvester on ratooning rice axillary buds is reduced, and the yield of ratooning rice is increased.

Description

Technical Field

[0001] This invention belongs to the field of ratooning rice planting and management technology, specifically relating to a mechanical planting and harvesting method that integrates agricultural machinery and agronomy for the first season of ratooning rice. Background Technology

[0002] Ratoon rice is a type of rice that utilizes dormant buds from the first-season rice crop. Under specific cultivation conditions, these dormant buds are encouraged to sprout and grow again, eventually forming panicles for harvest. The growth cycle of ratoon rice consists of three stages: budding, seedling emergence, panicle growth and jointing, and flowering and fruiting. Ratoon rice cultivation requires specific temperature, light, water, and soil conditions, and its entire growth period is 60-70 days.

[0003] When harvesting the first crop of traditional ratooning rice using combine harvesters, the harvester tracks inevitably crush the rice stubble. Furthermore, the degree of crushing varies depending on the width of the harvester tracks, the operator's habits, and water management in the paddy field. After being crushed, the rice stubble is buried in the soil, causing the axillary buds on the stubble to die, reducing the yield of the ratooning season. Additionally, the inconsistent germination and growth of axillary buds between crushed and uncrushed rows leads to differences in the maturity of the ratooning rice, affecting rice quality. Summary of the Invention

[0004] This invention provides a mechanized planting and harvesting method that integrates agricultural machinery and agronomy for the first season of regenerated rice, in order to at least solve some of the aforementioned technical problems.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A mechanized planting and harvesting method that integrates agricultural machinery and agronomy for the first season of ratooning rice includes the following steps: Ratoon rice is planted using a 4-row or 6-row rice transplanter with a reserved row planting mode. When the first crop of rice matures, the water in the paddy field is drained and dried, and the depth of the mud is determined to prepare for harvesting. When harvesting the first crop of rice, select a combine harvester based on the depth of the mud. Adjust the combine harvester's track gauge according to the row spacing of the pre-reserved row planting pattern, and ensure that the combine harvester's walking trajectory is the same as the pre-reserved row trajectory. This reduces the chance of the combine harvester bringing the axillary buds of the ratooned rice into the mud and ensures the growth of the axillary buds of the ratooned rice. Management of ratooning rice after harvest: Immediately after harvesting, irrigate to protect the seedlings, and apply fertilizer on the day of or the day after harvesting to make the ratooning seedlings uniform and strong.

[0006] Furthermore, when the 4-row rice transplanter uses the reserved row machine transplanting mode to plant ratooning rice, one row is reserved out of four rows, and the rice is machine transplanted along the long side of the paddy field. The row spacing for ratooning rice is 30cm, and the plant spacing is 14-18cm, ensuring that the reserved row width is 60cm.

[0007] Furthermore, when harvesting the first crop of ratooning rice planted by the 4-row rice transplanter, the combine harvester moves along the reserved rows, with a track gauge greater than 120cm and a cutting width greater than 220cm.

[0008] Furthermore, when planting ratooning rice using the reserved row machine transplanting mode with a 6-row rice transplanter, seedlings are placed in the middle 4 rows of the transplanter, and no seedlings are placed on the sides to form reserved rows. The seedlings are then machine transplanted along the long side of the paddy field. The row spacing for ratooning rice is 25cm, the plant spacing is 16-20cm, and the reserved row width is 50cm.

[0009] Furthermore, when harvesting the first crop of ratooning rice planted by the 6-row rice transplanter, the combine harvester moves along the reserved rows, with a track gauge of more than 130cm and a cutting width of 180-220cm.

[0010] Furthermore, when the mud depth is less than 30cm, a lightweight combine harvester with a wide cutting width and narrow tracks should be used; when the mud depth is 30-45cm, a combine harvester with a wide cutting width and wide tracks should be used.

[0011] Furthermore, after harvesting by combine harvesters, the height of the ratooned rice stubble is 33-40cm.

[0012] Furthermore, the fertilizer used is urea, with an application rate of 5 kg per acre, to promote uniform and robust growth of the regenerated seedlings.

[0013] Compared with the prior art, the present invention has the following beneficial effects: This invention has a simple structure, a scientific and reasonable design, and is easy to use. The track gauge of the combine harvester is the same as that of the rice transplanter, so as to reduce the crushing of the ratooning rice by the combine harvester during harvesting and prevent the axillary buds of the ratooning rice from being stuck in the mud and affecting the growth of the axillary buds.

[0014] This invention selects a combine harvester that is compatible with the mud depth, which facilitates the harvesting of the first-season rice by the combine harvester.

[0015] This invention employs a pre-row planting method for ratooning rice, which facilitates the movement of combine harvesters through the pre-rows to harvest the ratooning rice, reduces the crushing of ratooning rice axillary buds by the combine harvester, and increases the yield of ratooning rice. Attached Figure Description

[0016] Figure 1 A schematic diagram of the planting process of the 6-row rice transplanter of this invention.

[0017] Figure 2A schematic diagram of the planting process of the 4-row rice transplanter of this invention.

[0018] Figure 3 This is a flowchart illustrating the planting and harvesting process of this invention. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0020] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; of course, they can also refer to a mechanical connection or an electrical connection; furthermore, they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0022] Example 1, as Figure 1-3 As shown, the present invention provides a mechanical planting and harvesting method for first-season rice of regenerated rice that integrates agricultural machinery and agronomy, comprising the following steps; Ratoon rice is planted using a 4-row or 6-row rice transplanter with a reserved row planting mode. In the above steps, both the 4-row and 6-row rice transplanters use a pre-row planting mode to plant ratooning rice. This pre-row planting mode facilitates the harvesting of the first crop of ratooning rice by the combine harvester after planting and determines the harvester's movement path. This prevents the axillary buds of the ratooning rice from being crushed into the mud by the harvester's tracks, thus affecting the growth of the axillary buds and consequently the yield of the ratooning rice. When the first crop of rice matures, the water in the ratooning rice field is drained and dried, and the mud depth is determined to establish harvesting conditions. In the above steps, when the first crop of rice matures, the water in the ratooning paddy field is drained and dried for 5-8 days. After drying, the mud depth is determined so that when you step on the paddy field, your feet will not sink in, thus creating conditions for the combine harvester to enter the field and harvest the first crop of ratooning rice. When harvesting the first crop of rice, select a combine harvester based on the depth of the mud. Adjust the combine harvester's track gauge according to the row spacing of the pre-set row pattern, and ensure that the combine harvester's travel trajectory is the same as the pre-set row trajectory to reduce the chance of the combine harvester bringing the axillary buds of the ratooned rice into the mud. In the above steps, when selecting a combine harvester, the model, cutting width, and track width should be chosen according to the mud depth. The track gauge of the combine harvester should be the same as that of the rice transplanter to reduce the crushing of the ratooning rice during harvesting and to reduce the crushing range of the ratooning rice stubble. After harvesting the first-season rice, the height of the ratooning rice stubble should be 33-40cm to facilitate the growth of axillary buds on the ratooning rice. When harvesting ratooning rice planted in the pre-row planting mode, the combine harvester's travel trajectory should be the same as the pre-row trajectory of the pre-row planting mode to reduce the crushing of the ratooning rice stubble by the combine harvester's tracks, improve the growth rate of axillary buds in the ratooning rice, and increase the yield of ratooning rice. Management of ratooning rice after harvest: Immediately after harvesting, irrigate to protect the seedlings, and apply fertilizer on the day of or the day after harvesting to make the ratooning seedlings uniform and strong.

[0023] In the above steps, after the ratooning rice is harvested, the ratooning rice field needs to be irrigated immediately to improve the seedling rate of the second node from the top. At the same time, fertilizer should be applied on the same day or the day after harvesting as a seedling fertilizer for the axillary buds of the ratooning rice, so as to promote the growth of the axillary buds and make the ratooning seedlings uniform and strong.

[0024] Example 2, as Figure 1-3 As shown, the present invention provides a mechanical planting and harvesting method for first-season rice of regenerated rice that integrates agricultural machinery and agronomy, comprising the following steps; Ratoon rice is planted using a 4-row or 6-row rice transplanter with a reserved row planting mode. When the first crop of rice matures, the water in the paddy field is drained and dried, and the depth of the mud is determined to prepare for harvesting. When harvesting the first crop of rice, select a combine harvester based on the depth of the mud. Adjust the combine harvester's track gauge according to the row spacing of the pre-reserved row planting pattern, and ensure that the combine harvester's walking trajectory is the same as the pre-reserved row trajectory. This reduces the chance of the combine harvester bringing the axillary buds of the ratooned rice into the mud and ensures the growth of the axillary buds of the ratooned rice. Management of ratooning rice after harvest: Immediately after harvesting, irrigate to protect the seedlings, and apply fertilizer on the day of or the day after harvesting to make the ratooning seedlings uniform and strong.

[0025] When planting ratooning rice using the reserved row machine transplanting mode, the rice transplanter places seedlings in the middle 3 rows and leaves the seedlings on the sides to form reserved rows. The rice is then machine transplanted along the long side of the paddy field. The row spacing for ratooning rice is 30cm and the plant spacing is 14-18cm, ensuring that the reserved row width is 60cm.

[0026] In this embodiment 2, when the 4-row rice transplanter uses the reserved row transplanting mode to plant ratooning rice, the row spacing is 30cm and the plant spacing is 14-18cm (specifically, the plant spacing of the 4-row rice transplanter is 14cm). After planting, it is ensured that the number of ratooning rice plants per mu is greater than 10,000, thereby increasing the planting density of ratooning rice. When the 4-row rice transplanter uses the reserved row transplanting mode, the reserved row width on both sides is 60cm. After the 4-row rice transplanter turns around, one reserved row is shared on one side of the 4-row rice transplanter, which increases the planting range of ratooning rice. At the same time, the reserved row can also facilitate the movement of the combine harvester in the paddy field, reduce the crushing range of the ratooning rice stubble by the combine harvester, and increase the yield of ratooning rice.

[0027] Example 3, as Figure 1-3 As shown, the present invention provides a mechanical planting and harvesting method for first-season rice of regenerated rice that integrates agricultural machinery and agronomy, comprising the following steps; Ratoon rice is planted using a 4-row or 6-row rice transplanter with a reserved row planting mode. When the first crop of rice matures, the water in the paddy field is drained and dried, and the depth of the mud is determined to prepare for harvesting. When harvesting the first crop of rice, select a combine harvester based on the depth of the mud. Adjust the combine harvester's track gauge according to the row spacing of the pre-reserved row planting pattern, and ensure that the combine harvester's walking trajectory is the same as the pre-reserved row trajectory. This reduces the chance of the combine harvester bringing the axillary buds of the ratooned rice into the mud and ensures the growth of the axillary buds of the ratooned rice. Management of ratooning rice after harvest: Immediately after harvesting, irrigate to protect the seedlings, and apply fertilizer on the day of or the day after harvesting to make the ratooning seedlings uniform and strong.

[0028] When planting ratooning rice using a 4-row rice transplanter with a reserved row planting mode, one row is reserved out of four rows and the rice is planted along the long side of the paddy field. The row spacing for ratooning rice is 30cm and the plant spacing is 14-18cm, ensuring a reserved row width of 60cm.

[0029] When harvesting the first crop of ratooning rice planted by 4-row rice transplanters, the combine harvester moves along the reserved rows. The track gauge of the combine harvester is greater than 120cm and the cutting width is greater than 220cm.

[0030] In this embodiment 3, when the combine harvester harvests the ratooning rice planted by the 4-row transplanter, the combine harvester's track gauge is greater than 120cm, the combine harvester's track width is 40-55cm, and after harvesting, the ratooning rice stubble is positioned 33-40cm. Since the reserved row width is 60cm, and the combine harvester's track width is 40-55cm, the reserved row width is greater than the combine harvester's track width, thereby reducing the crushing of the ratooning rice by the combine harvester. Specifically, when the mud depth is less than 30cm, the combine harvester's track width is 35cm, the harvester's track gauge is 120cm, the cutting width is 230cm, and the height of the ratooned rice stubble after harvesting is 35cm. During the harvesting process, the end of the ratooned rice stubble is only crushed when the harvester turns around, while the rest is crushed by the combine harvester's track. This improves the germination and growth of the ratooned rice axillary buds, reduces the difference in ratooned rice maturity, and increases the yield of ratooned rice.

[0031] When the mud depth is 30-45cm, the track width of the combine harvester is 45cm, and the other harvesting parameters are the same as when the mud depth is less than 30cm. This can prevent the harvester from getting stuck in the field, and also prevent the harvester track from being too wide and crushing the rice stubble of the ratooning rice, thus affecting the germination and growth of the axillary buds of the ratooning rice.

[0032] Example 4, as Figure 1-3 As shown, the present invention provides a mechanical planting and harvesting method for first-season rice of regenerated rice that integrates agricultural machinery and agronomy, comprising the following steps; Ratoon rice is planted using a 4-row or 6-row rice transplanter with a reserved row planting mode. When the first crop of rice matures, the water in the paddy field is drained and dried, and the depth of the mud is determined to prepare for harvesting. When harvesting the first crop of rice, select a combine harvester based on the depth of the mud. Adjust the combine harvester's track gauge according to the row spacing of the pre-reserved row planting pattern, and ensure that the combine harvester's walking trajectory is the same as the pre-reserved row trajectory. This reduces the chance of the combine harvester bringing the axillary buds of the ratooned rice into the mud and ensures the growth of the axillary buds of the ratooned rice. Management of ratooning rice after harvest: Immediately after harvesting, irrigate to protect the seedlings, and apply fertilizer on the day of or the day after harvesting to make the ratooning seedlings uniform and strong.

[0033] When planting ratooning rice using the reserved row machine transplanting mode, the 6-row rice transplanter places seedlings in the middle 4 rows, leaving the sides empty to form reserved rows, and then transplants them along the long side of the paddy field. The row spacing for ratooning rice is 25cm, the plant spacing is 16-20cm, and the reserved row width is 50cm.

[0034] In this embodiment 4, when the 6-row rice transplanter uses the reserved row transplanting mode to plant ratooning rice, the row spacing of ratooning rice is 25cm, the plant spacing is 16-20cm (the plant spacing is 18cm, and after planting, the planting quantity of ratooning rice per mu is more than 10,000 plants), and the reserved row width on both sides is 50cm. When the 6-row rice transplanter turns around, one reserved row is shared on one side of the 6-row rice transplanter. The combine harvester moves along the reserved row, which can reduce the crushing of ratooning rice by the combine harvester and improve the growth rate of axillary buds of ratooning rice.

[0035] Example 5, as Figure 1-3 As shown, the present invention provides a mechanical planting and harvesting method for first-season rice of regenerated rice that integrates agricultural machinery and agronomy, comprising the following steps; Ratoon rice is planted using a 4-row or 6-row rice transplanter with a reserved row planting mode. When the first crop of rice matures, the water in the paddy field is drained and dried, and the depth of the mud is determined to prepare for harvesting. When harvesting the first crop of rice, select a combine harvester based on the depth of the mud. Adjust the combine harvester's track gauge according to the row spacing of the pre-reserved row planting pattern, and ensure that the combine harvester's walking trajectory is the same as the pre-reserved row trajectory. This reduces the chance of the combine harvester bringing the axillary buds of the ratooned rice into the mud and ensures the growth of the axillary buds of the ratooned rice. Management of ratooning rice after harvest: Immediately after harvesting, irrigate to protect the seedlings, and apply fertilizer on the day of or the day after harvesting to make the ratooning seedlings uniform and strong.

[0036] When planting ratooning rice using a 6-row rice transplanter in a pre-reserved row transplanting mode, seedlings are placed in the middle four rows of the transplanter, while seedlings are left unplaced on the sides to form pre-reserved rows. The rice is then transplanted along the long side of the paddy field. The row spacing for ratooning rice is 25cm, the plant spacing is 16-20cm, and the pre-reserved row width is 50cm.

[0037] When harvesting the first crop of ratooning rice planted by a 6-row rice transplanter, the combine harvester moves along the reserved rows. The track gauge of the combine harvester is greater than 130cm, and the cutting width is 180-220cm.

[0038] In Implementation 5, when the combine harvester is harvesting the first crop of ratooning rice planted by the 6-row rice transplanter... The combine harvester has a track gauge greater than 130cm (specifically, the track gauge of the combine harvester is 140cm), and a cutting width of 180-220cm (specifically, the cutting width is 190cm). This facilitates the harvesting of the first-season rice. After the first-season rice is harvested, the height of the ratoon rice stubble is 33-40cm, which facilitates the growth of axillary buds on the stubble. Specifically, when the mud depth is less than 30cm, the combine harvester has a track gauge of 140cm, a cutting width of 190cm, and a track width of 35cm. After harvesting, the height of the ratoon rice stubble is 35cm. Since the width of the reserved row is 50cm, which is greater than the width of the track, during the harvesting process, only when the harvester turns around will the end of the ratoon rice stubble be crushed. The rest of the stubble will not be crushed by the combine harvester's track. This improves the germination and growth of axillary buds in the ratoon rice, reduces the difference in maturity of the ratoon rice, and increases the yield of the ratoon rice.

[0039] When the mud depth is 30-45cm, the track width is 45cm. The other harvesting parameters are the same as when the mud depth is less than 30cm. This can prevent the harvester from getting stuck in the field and also prevent the harvester track from being too wide and crushing the rice stubble of the ratooning rice, thus affecting the germination and growth of the axillary buds of the ratooning rice.

[0040] Example 6, as Figure 1-3 As shown, the present invention provides a mechanical planting and harvesting method for first-season rice of regenerated rice that integrates agricultural machinery and agronomy, comprising the following steps; Ratoon rice is planted using a 4-row or 6-row rice transplanter with a reserved row planting mode. When the first crop of rice matures, the water in the paddy field is drained and dried, and the depth of the mud is determined to prepare for harvesting. When harvesting the first crop of rice, select a combine harvester based on the depth of the mud. Adjust the combine harvester's track gauge according to the row spacing of the pre-reserved row planting pattern, and ensure that the combine harvester's walking trajectory is the same as the pre-reserved row trajectory. This reduces the chance of the combine harvester bringing the axillary buds of the ratooned rice into the mud and ensures the growth of the axillary buds of the ratooned rice. Management of ratooning rice after harvest: Immediately after harvesting, irrigate to protect the seedlings, and apply fertilizer on the day of or the day after harvesting to make the ratooning seedlings uniform and strong.

[0041] When the mud depth is less than 30cm, a lightweight combine harvester with a wide cutting width and narrow tracks should be used; when the mud depth is 30-45cm, a combine harvester with a wide cutting width and wide tracks should be used.

[0042] In this embodiment 6, when the mud depth is less than 30cm, a lightweight combine harvester with a wide cutting width and narrow track is used. The track width of the lightweight combine harvester with a wide cutting width and narrow track can be selected according to the mud depth and the reserved row width to facilitate the harvesting of the first-season rice and reduce the crushing of the ratoon rice stubble by the combine harvester's track. The track width of the lightweight combine harvester with a wide cutting width and narrow track is 28-40cm (preferably 35cm). When the mud depth is 30-45cm, a combine harvester with a wide cutting width and wide track is selected. The track width of the combine harvester with a wide cutting width and wide track is 45-55cm (preferably 45cm) to facilitate the harvesting of the first-season rice.

[0043] Example 7, as Figure 1-3 As shown, the present invention provides a mechanical planting and harvesting method for first-season rice of regenerated rice that integrates agricultural machinery and agronomy, comprising the following steps; Ratoon rice is planted using a 4-row or 6-row rice transplanter with a reserved row planting mode. When the first crop of rice matures, the water in the paddy field is drained and dried, and the depth of the mud is determined to prepare for harvesting. When harvesting the first crop of rice, select a combine harvester based on the depth of the mud. Adjust the combine harvester's track gauge according to the row spacing of the pre-reserved row planting pattern, and ensure that the combine harvester's walking trajectory is the same as the pre-reserved row trajectory. This reduces the chance of the combine harvester bringing the axillary buds of the ratooned rice into the mud and ensures the growth of the axillary buds of the ratooned rice. Management of ratooning rice after harvest: Immediately after harvesting, irrigate to protect the seedlings, and apply fertilizer on the day of or the day after harvesting to make the ratooning seedlings uniform and strong.

[0044] After harvesting by combine harvester, the height of the ratooned rice stubble is 33-40cm.

[0045] In this embodiment 7, after the first crop of ratooning rice is harvested, the height of the ratooning rice stubble is 33-40cm (preferably 35cm), which facilitates the growth of axillary buds on the ratooning rice stubble.

[0046] Example 8, as Figure 1-3 As shown, the present invention provides a mechanical planting and harvesting method for first-season rice of regenerated rice that integrates agricultural machinery and agronomy, comprising the following steps; Ratoon rice is planted using a 4-row or 6-row rice transplanter with a reserved row planting mode. When the first crop of rice matures, the water in the paddy field is drained and dried, and the depth of the mud is determined to prepare for harvesting. When harvesting the first crop of rice, select a combine harvester based on the depth of the mud. Adjust the combine harvester's track gauge according to the row spacing of the pre-reserved row planting pattern, and ensure that the combine harvester's walking trajectory is the same as the pre-reserved row trajectory. This reduces the chance of the combine harvester bringing the axillary buds of the ratooned rice into the mud and ensures the growth of the axillary buds of the ratooned rice. Management of ratooning rice after harvest: Immediately after harvesting, irrigate to protect the seedlings, and apply fertilizer on the day of or the day after harvesting to make the ratooning seedlings uniform and strong.

[0047] The fertilizer used is urea, and the application rate is 5 kg per mu (approximately 0.067 hectares) to promote the uniform and robust growth of the regenerated seedlings.

[0048] In this embodiment 8, after the first crop of rice is harvested, fertilizer is applied to the paddy field. The fertilizer is urea, and the application rate is 5 kg per mu. Urea can promote the growth of axillary buds of the ratooning rice, making the axillary buds uniform and strong, thereby increasing the yield of ratooning rice.

[0049] This invention can also be used in a 4-row or 6-row rice transplanter with equidistant full-planting mode. The row spacing is 30cm, the plant spacing is 16-20cm, and the planting density is 10,000-15,000 plants per acre. During harvesting, the combine harvester will compact two rows of ratooning rice stubble. Although this planting method compacts the ratooning rice stubble, it results in a higher planting density, thereby increasing the yield of the first crop of ratooning rice. Simultaneously, because the compaction is relatively small, it reduces the maturity difference between compacted and uncompacted rows, improving the quality of the ratooning rice. When harvesting, if the mud depth is less than 30cm, choose a lightweight combine harvester with a wide cutting width and narrow tracks (track width of 28-40cm (preferably 40cm), other track gauge of 140cm, and cutting width of 190cm). If the mud depth is 30-45cm, choose a combine harvester with a wide cutting width and wide tracks (track width of 45-55cm (preferably 55cm), other track gauge of 140cm, and cutting width of 190cm). This will facilitate the harvesting of the first crop of rice.

[0050] Finally, it should be noted that the above embodiments are merely preferred embodiments of the present invention used to illustrate the technical solutions of the present invention, and are not intended to limit the invention, nor are they intended to limit the patent scope of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention. That is to say, any changes or refinements made to the main design concept and spirit of the present invention that are not of substantial significance, but whose technical problems are still consistent with the present invention, should be included within the protection scope of the present invention. In addition, the direct or indirect application of the technical solutions of the present invention to other related technical fields are similarly included within the patent protection scope of the present invention.

Claims

1. A mechanized planting and harvesting method for the first season of ratooning rice, integrating agricultural machinery and agronomy, characterized in that, Includes the following steps: Ratoon rice is planted using a 4-row or 6-row rice transplanter with a reserved row planting mode. When the first crop of rice matures, the water in the paddy field is drained and dried, and the depth of the mud is determined to prepare for harvesting. When harvesting the first crop of rice, select a combine harvester based on the depth of the mud. Adjust the combine harvester's track gauge according to the row spacing of the pre-reserved row planting pattern, and ensure that the combine harvester's walking trajectory is the same as the pre-reserved row trajectory. This reduces the chance of the combine harvester bringing the axillary buds of the ratooned rice into the mud and ensures the growth of the axillary buds of the ratooned rice. Management of ratooning rice after harvest: Immediately after harvesting, irrigate to protect the seedlings, and apply fertilizer on the day of or the day after harvesting to make the ratooning seedlings uniform and strong.

2. The mechanized planting and harvesting method for first-season ratooning rice, integrating agricultural machinery and agronomy, as described in claim 1, is characterized in that... When planting ratooning rice using the reserved row machine transplanting mode, the rice transplanter places seedlings in the middle 3 rows and leaves the seedlings on the sides to form reserved rows. The rice is then machine transplanted along the long side of the paddy field. The row spacing for ratooning rice is 30cm and the plant spacing is 14-18cm, ensuring that the reserved row width is 60cm.

3. The mechanized planting and harvesting method for first-season rice of ratooning rice, integrating agricultural machinery and agronomy as described in claim 2, is characterized in that... When harvesting the first crop of ratooning rice planted by 4-row rice transplanters, the combine harvester moves along the reserved rows. The track gauge of the combine harvester is greater than 120cm and the cutting width is greater than 220cm.

4. The mechanized planting and harvesting method for first-season regenerated rice, integrating agricultural machinery and agronomy, as described in claim 1, is characterized in that... When planting ratooning rice using the reserved row machine transplanting mode, the 6-row rice transplanter places seedlings in the middle 4 rows, and leaves no seedlings on the sides to form reserved rows. The rice is then machine-transplanted along the long side of the paddy field. The row spacing for ratooning rice is 25cm, the plant spacing is 16-20cm, and the reserved row width is 50cm.

5. The mechanized planting and harvesting method for first-season regenerated rice, integrating agricultural machinery and agronomy, as described in claim 4, is characterized in that... When harvesting the first crop of ratooning rice planted by a 6-row rice transplanter, the combine harvester moves along the reserved rows. The track gauge of the combine harvester is greater than 130cm, and the cutting width is 180-220cm.

6. The mechanized planting and harvesting method for first-season ratooning rice, integrating agricultural machinery and agronomy, as described in claim 1, is characterized in that... When the mud depth is less than 30cm, a lightweight combine harvester with a wide cutting width and narrow tracks should be used; when the mud depth is 30-45cm, a combine harvester with a wide cutting width and wide tracks should be used.

7. The mechanized planting and harvesting method for first-season ratooning rice, integrating agricultural machinery and agronomy, as described in claim 1, is characterized in that... After harvesting by combine harvester, the height of the ratooned rice stubble is 33-40cm.

8. The mechanized planting and harvesting method for first-season rice of ratooning rice, integrating agricultural machinery and agronomy according to claim 1, is characterized in that... The fertilizer used is urea, and the application rate is 5 kg per mu (approximately 0.067 hectares) to promote the uniform and robust growth of the regenerated seedlings.

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