Urban agricultural irrigation method and system

Abstract

The invention discloses an urban agricultural irrigation method and system, and relates to the technical field of urban agricultural production. The drainage ditches are arranged in the farmland planting area in a criss-cross mode, and the tops of the drainage ditches are not higher than the soil surface layer of the farmland planting area; the cover plate is arranged on the drainage ditch, and a plurality of water filtering holes are formed in the cover plate; the water storage system is communicated with the drainage ditch and is used for collecting rainwater; and the spraying irrigation system is communicated with the water storage system. Most of the cultivated land is new reclamation cultivated land, the granular structure of the soil is damaged, the soil fertility level is poor, the crop growth and harvesting are influenced when the land is directly used for cultivation, and the soil cultivation performance can be effectively improved by continuously carrying out soil improvement, arranging drainage ditches and reducing water and soil loss within 3-5 years of second cultivation; through the intelligent agricultural management system, the agricultural production process is monitored in real time and intelligently regulated and controlled, the intelligent level of agricultural production is improved, and efficient agricultural production is achieved.

Description

Technical Field

[0001] The present application relates to the field of urban agricultural production technology, and in particular to an urban agricultural irrigation method and system. Background Art

[0002] With the acceleration of urbanization, urban land resources are becoming increasingly scarce, and the complexity of the food supply chain has also increased the challenges of food safety and supply. At the same time, the urban environment faces problems such as insufficient greening and declining air quality. Agriculture, as an emerging concept that introduces agricultural production into urban space, can effectively alleviate these problems.

[0003] However, there is a lot of gravel and construction slag in the surface of some soils around cities, and the current urban agricultural system construction generally lacks unified planning and intelligent management, making agricultural production difficult and difficult to adapt to the requirements of modern agricultural development. Therefore, it is necessary to propose an innovative urban agricultural system construction method to achieve efficient agricultural production. Summary of the invention

[0004] In order to achieve efficient agricultural production, the present application provides an urban agricultural irrigation method and system.

[0005] On the one hand, the present application provides an urban agricultural irrigation system, which adopts the following technical solutions:

[0006] An urban agricultural irrigation system, comprising:

[0007] Farmland planting area;

[0008] Drainage ditches, the drainage ditches are crisscrossed and arranged in the farmland planting area, and the tops of the drainage ditches are not higher than the soil surface of the farmland planting area;

[0009] A cover plate is arranged on the drainage ditch, and a plurality of water filtering holes are opened on the cover plate;

[0010] a water storage system, which is connected to the drains to collect rainwater;

[0011] The irrigation sprinkler system is arranged in the farmland planting area for irrigating crops, and the sprinkler irrigation system is connected with the water storage system.

[0012] By adopting the above technical solution, rainwater can be collected in the water storage system through the drainage ditch, and the sprinkler irrigation system is connected to the water storage system, so that rainwater can be recycled and reused, reducing dependence on municipal water supply; during heavy rain, the cover on the drainage ditch can prevent mud and other garbage from entering the drainage ditch, prevent drainage ditch blockage and prevent soil erosion; automatic sprinkler irrigation can be achieved in the farmland planting area through the irrigation sprinkler system, thereby improving agricultural production.

[0013] Optionally, a filter layer for filtering rainwater is provided between the drainage ditch and the farmland planting layer, and a drainage hole connected to the filter layer is provided on the side wall of the drainage ditch.

[0014] Optionally, a mud guard block is integrally formed on the top wall of the cover plate, and a water filter hole penetrating the cover plate is opened on the top wall of the mud guard block.

[0015] By adopting the above technical scheme, when encountering heavy rain, a large amount of rainwater containing mud in the farmland planting area will gather into the drainage ditch, and the water filter holes are arranged on the mud retaining blocks, which play a certain blocking role, so that the clear water on the upper layer passes through the water filter holes into the drainage ditch, and the mud and sand on the lower layer are blocked by the mud retaining blocks, thereby achieving the purpose of reducing soil loss.

[0016] Optionally, the mud retaining block is provided with an arc-shaped concave surface at least on the side wall close to the farmland planting layer.

[0017] Optionally, the drainage ditch includes wall panels arranged on both sides, and a floating mud guard assembly is arranged on the wall panels. The floating mud guard assembly can rise as the liquid level rises, and is used to prevent mud from entering the drainage ditch.

[0018] By adopting the above technical solution, when encountering heavy rain, a large amount of rainwater containing mud in the farmland planting area will gather in the drainage ditch. As the liquid level rises, the floating mud guard assembly rises, which further blocks the rainwater containing mud and sand, prevents a large amount of rainwater containing mud and sand from entering the drainage ditch, reduces the blockage of the water filter holes, and reduces soil loss.

[0019] Optionally, the floating mudguard assembly comprises:

[0020] A floating member, disposed on the top of the wall panel, the floating member being able to rise as the liquid level rises;

[0021] A mud guard net connected to the floating member;

[0022] A winding assembly is arranged in the wall panel and is used for winding the mud retaining net.

[0023] Optionally, the winding assembly includes a winding roller and a reset member, the top wall of the wall panel is provided with a strip groove along the length direction of the wall panel, the winding roller is rotatably arranged in the strip groove, the mud guard net is wound on the winding roller, and the reset member is arranged in the strip groove to drive the winding roller to rotate so that the mud guard net is wound on the winding roller.

[0024] Optionally, retaining walls are fixedly provided at both ends of the wall panel along the length direction of the drainage ditch, and guide grooves are opened in the vertical direction on the side walls of the two retaining walls that are close to each other. The guide grooves are connected to the strip grooves, and the two ends of the floating member are slidably connected to the guide grooves.

[0025] On the other hand, the present application provides an urban agricultural irrigation method, which adopts the following technical solution:

[0026] An urban agricultural irrigation method comprises the following steps:

[0027] Clean the gravel and construction debris on the soil surface, and continue to clean the gravel in the soil plough layer within 3-5 years after recultivation to improve soil cultivation performance;

[0028] Irrigation system construction: construction of irrigation system in farmland planting areas;

[0029] Build a water storage system, construct crisscross drainage ditches in the farmland planting area, connect the water storage system with the drainage ditches to collect rainwater, and connect the irrigation system with the water storage system to use the rainwater in the water storage system for irrigation;

[0030] Build an intelligent agricultural management system to conduct real-time monitoring and intelligent regulation of the agricultural production process based on Internet of Things technology.

[0031] By adopting the above technical solutions, since most of the farmland planting areas in the city are newly reclaimed farmland, the soil aggregate structure has been destroyed and the soil fertility level is poor. Direct use for farming will affect crop growth and harvesting. By continuously improving the soil and setting up drainage ditches within 3-5 years of reclamation, soil erosion can be reduced, which can effectively improve soil cultivation performance. Through the intelligent agricultural management system, the agricultural production process can be monitored and intelligently controlled in real time, the intelligence level of agricultural production can be improved, and efficient agricultural production can be achieved.

[0032] Optionally, the construction of an intelligent agricultural management system includes:

[0033] An environmental detection module is used to monitor environmental condition information in real time to ensure optimal conditions for plant growth, wherein the environmental condition information includes at least soil moisture information and temperature information;

[0034] An Internet of Things platform, used to connect the environmental detection module to achieve real-time data transmission and monitoring;

[0035] The control system adjusts the irrigation amount of the irrigation sprinkler system according to the environmental condition information.

[0036] In summary, the present application includes at least one of the following beneficial technical effects:

[0037] 1. As most of the farmland planting areas in cities are newly reclaimed arable land, the soil aggregate structure has been damaged and the soil fertility is poor. Direct use for cultivation will affect crop growth and harvesting. Through reclamation within 3-5 years, gravel and construction debris in the soil can be cleaned up, and soil improvement can be continuously carried out; drainage ditches can be set up to reduce soil erosion, which can effectively improve soil cultivation performance; through intelligent agricultural management systems, the agricultural production process can be monitored and intelligently controlled in real time, the level of intelligence in agricultural production can be improved, and efficient agricultural production can be achieved.

[0038] 2. When encountering heavy rain, a large amount of rainwater containing mud in the farmland planting area will gather in the drainage ditch. As the liquid level rises, the floating mud guard assembly rises, which further blocks the rainwater containing mud and sand, prevents a large amount of rainwater containing mud and sand from entering the drainage ditch, reduces the blockage of the water filter holes, and reduces soil loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0040] Figure 2 is a cross-sectional view of a drainage ditch according to an embodiment of the present application;

[0041] Figure 3 is a top view of a drainage ditch according to an embodiment of the present application;

[0042] Figure 4 is a cross-sectional view of a wall panel and a retaining wall according to an embodiment of the present application;

[0043] Figure 5 This is an embodiment of the present application Figure 3 AA section view;

[0044] Figure 6 This is an embodiment of the present application Figure 5 Enlarged view of part B.

[0045] Explanation of the reference numerals in the accompanying drawings: 1. farmland planting area; 2. drainage ditch; 21. filter layer; 22. drainage hole; 23. wall panel; 231. embedded groove; 232. strip groove; 233. accommodation groove; 24. retaining wall; 241. guide groove; 3. water reservoir; 41. spray pipe; 42. water pipe; 43. water pump; 44. water supply pipe; 441. valve; 5. cover plate; 51. water filter hole; 52. mud retaining block; 521. arc-shaped concave surface; 6. floating mud retaining assembly; 61. floating part; 62. mud retaining net; 63. winding assembly; 631. winding roller; 632. winding spring. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0048] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0050] The embodiment of the present application discloses an urban agricultural irrigation system.

[0051] Reference Figure 1An urban agricultural irrigation system includes a farmland planting area 1, drainage ditches 2, a water storage system and an irrigation sprinkler system. The drainage ditches 2 are crisscrossed in the farmland planting area 1, and the top of the drainage ditch 2 is not higher than the soil surface of the farmland planting area 1. In this embodiment, the top of the drainage ditch 2 is at the same height as the soil surface of the farmland planting area 1. The drainage ditch 2 is cast in one piece with concrete. The drainage ditch 2 is composed of a plurality of troughs cast in one piece with concrete. The trough is a U-shaped structure. The drainage ditch 2 includes wall panels 23 arranged on both sides, and the wall panels 23 are arranged vertically.

[0052] Reference Figure 1 and Figure 2 A filter layer 21 for filtering rainwater is arranged between the drainage ditch 2 and the farmland planting layer. The filter layer 21 is a gravel layer. A drainage hole 22 connected to the filter layer 21 is opened on the side wall of the drainage ditch 2.

[0053] Reference Figure 1 and Figure 2 , the water storage system is used to be connected with the drainage ditch 2 for collecting rainwater. The water storage system includes a reservoir 3. In rainy weather, the rainwater gathered through the drainage ditch 2 will be discharged into the reservoir 3 for storage, which plays the role of collecting rainwater. In addition, in order to increase the rainwater collection effect and reduce external municipal water use, the reservoir 3 can be connected with wetlands, artificial lakes or rivers through ditches. When the rainfall is large and exceeds the water storage capacity of the reservoir 3, the excess rainwater can flow into water bodies such as wetlands, artificial lakes or rivers through ditches. While minimizing the number of excavations of the reservoir 3, it can meet the needs of collecting a large amount of rainwater and reduce the waste of water resources.

[0054] Reference Figure 1 and Figure 2 The irrigation sprinkler system is arranged in the farmland planting area 1 for irrigating crops, and the sprinkler irrigation system is connected to the water storage system. The sprinkler irrigation system includes a sprinkler pipe 41, a water pipe 42 and a water pump 43. The input end of the water pump 43 is connected to the water reservoir 3, and the output end of the water pump 43 is connected to the water pipe 42, and the water pipe 42 is connected to the sprinkler pipe 41. The sprinkler pipes 41 are laid at intervals in the farmland planting area 1, and a plurality of atomizing nozzles are arranged on the sprinkler pipe 41 for spraying irrigation to the crops. Optionally, a water supply pipe 44 is connected to the water supply pipe 42, and a valve 441 is arranged on the water supply pipe 44. The input end of the water supply pipe 44 can be used to connect to the municipal water supply system for replenishing water for crop irrigation during drought.

[0055] Reference Figure 2, a cover plate 5 is provided on the drainage ditch 2, and a plurality of water filtering holes 51 are provided on the cover plate 5. Optionally, an embedding groove 231 is provided on the top wall of the wall plate 23 of the drainage ditch 2, and the embedding groove 231 is provided at one end of the inner side of the wall plate 23, and the inner side of the wall plate 23 is the side where the two wall plates 23 are close to each other. The two ends of the cover plate 5 are respectively embedded in the embedding groove 231, and the depth of the embedding groove 231 is equal to the thickness of the cover plate 5, so that the top wall of the cover plate 5 is flush with the top wall of the wall plate 23. The cover plate 5 cooperates with the embedding groove 231 to prevent the cover plate 5 from shifting and ensure that the cover plate 5 is flush with the top of the drainage ditch 2.

[0056] Optional, see Figure 2 and Figure 3 The top wall of the cover plate 5 is integrally formed with a mud block 52, and a water filter hole 51 penetrating the cover plate 5 is provided on the top wall of the mud block 52, and an arc-shaped concave surface 521 is provided on the side wall of the mud block 52 at least close to the farmland planting layer. When encountering heavy rain, a large amount of rainwater containing mud in the farmland planting area 1 will converge to the drainage ditch 2, and the water filter hole 51 is set on the mud block 52, and the mud block plays a certain blocking role, so that the upper layer of clean water passes through the water filter hole 51 into the drainage ditch 2, and the mud and sand in the lower layer are blocked by the mud block, thereby achieving the purpose of reducing soil loss. The arc-shaped concave surface 521 allows the water flowing to the drainage ditch 2 to form a reflux away from the drainage ditch 2 at the mud block 52, so that the mud and sand can be accelerated to settle, thereby reducing the mud and sand from crossing the mud block 52 and entering the water filter hole 51.

[0057] Optional, see Figure 3 and Figure 4 The drainage ditch 2 includes wall panels 23 arranged on both sides, and a floating mud guard assembly 6 is arranged on the wall panels 23. The floating mud guard assembly 6 can rise as the liquid level rises, and is used to prevent mud from entering the drainage ditch 2. Specifically, the floating mud guard assembly 6 includes a floating member 61, a mud guard net 62, and a winding assembly 63. The floating member 61 can rise as the liquid level rises. The floating member 61 is a floating rod, and the floating rod can be made of plastic. The floating rod has a hollow structure inside to increase buoyancy. When encountering heavy rain weather, a large amount of rainwater containing mud in the farmland planting area 1 will converge to the drainage ditch 2. As the liquid level rises, the floating mud guard assembly 6 rises, which further blocks the rainwater containing mud and sand, prevents a large amount of rainwater containing mud and sand from entering the drainage ditch 2, reduces the blockage of the water filter hole 51, and reduces the loss of mud.

[0058] Reference Figure 5 The mud retaining net 62 is connected to the floating member 61. The mud retaining net 62 is a mesh structure and can be woven from cotton, linen or polymer materials. It can block mud with larger particle sizes and facilitate rainwater to pass through.

[0059] Reference Figure 5 and Figure 6The winding assembly 63 is arranged in the wall panel 23 and is used to wind up the mud guard net 62. The winding assembly 63 includes a winding roller 631 and a reset member. The top wall of the wall panel 23 is provided with a strip groove 232 along the length direction of the wall panel 23. The winding roller is rotatably arranged in the strip groove 232. The strip groove 232 has mounting holes at both ends. Both ends of the winding roller 631 are inserted into the mounting holes. The mud guard net 62 is wound around the winding roller 631.

[0060] Reference Figure 5 and Figure 6 The reset member is arranged in the strip groove 232 to drive the winding roller 631 to rotate so that the mud guard net 62 is wound on the winding roller 631. The reset member is a coil spring 632, which is sleeved on one end of the winding roller 631. One end of the coil spring 632 is fixedly connected to the winding roller 631, and the other end is fixedly connected to the side wall of the strip groove 232. The elastic force of the coil spring 632 is smaller than the buoyancy of the floating member 61, so that the floating member 61 can pull the mud guard net 62 up as the liquid level rises, and when the rainwater level decreases, the coil spring 632 can drive the winding roller 631 to rotate, so that the mud guard net 62 is wound on the winding roller 631, which is convenient for resetting the mud guard net 62 and for reuse.

[0061] Optional, see Figure 5 and Figure 6 The diameter of the floating rod is larger than the width of the strip groove 232. The top wall of the wall panel 23 is provided with a receiving groove 233. The receiving groove 233 is located at the notch of the strip groove 232. The width of the receiving groove 233 is larger than the width of the strip groove 232. The floating rod can be embedded in the receiving groove 233. When the rainfall stops and the liquid level drops, the floating rod can be accommodated in the receiving groove 233.

[0062] Further, see Figure 5 and Figure 6 The wall plate 23 is fixed with retaining walls 24 at both ends along the length direction of the drainage ditch 2. The side walls of the two retaining walls 24 close to each other are provided with guide grooves 241 in the vertical direction. The guide grooves 241 are connected with the strip grooves 232. The two ends of the floating member 61 are slidably connected with the guide grooves 241. The width of the guide grooves 241 is adapted to the floating rod, which plays a role in positioning and guiding the floating rod.

[0063] The embodiment of the present application also discloses an urban agricultural irrigation method.

[0064] See also Figure 1 , an urban agricultural irrigation method, comprising the following steps:

[0065] Clean the gravel and construction residue on the surface of the soil, and continue to clean the gravel in the soil tillage layer within 3-5 years after recultivating the land to improve soil tillage performance. Within 3-5 years after recultivating the land, it is necessary to continue to clean the gravel in the soil tillage layer to improve soil tillage performance and increase soil permeability and looseness. Specifically, it includes mechanical stone picking and manual stone picking. During the idle period after the end of each planting season, the remaining gravel and construction residue in the field are cleaned up by stone picking machinery, and then transported or buried in a centralized manner. During the planting management process, organize labor workers to cooperate with stone picking machinery to continuously clean the gravel in the field to improve soil tillage performance.

[0066] Carry out soil fertilization treatment, including ensuring the quality of the tillage layer, increasing the organic matter content and inorganic nutrient levels. According to the soil types in different regions, select appropriate repair materials (such as organic fertilizers, humus, soil improvers, etc.) to add, improve the structure and fertility of the soil, and increase the soil's water retention capacity. In terms of ensuring the quality of the tillage layer of cultivated land, the first is to increase the thickness of the cultivated land soil, ensure the water and fertilizer retention capacity of the cultivated land, and provide a basis for high and stable crop yields; the second is to remove the topsoil, use leveling machinery to flatten and compact the plow bottom layer, backfill the topsoil in situ, use a rotary tiller to till more than 3 times, and compact the plow bottom for 3 consecutive seasons to build a paddy field plow bottom layer. In terms of improving the organic matter content and inorganic nutrient levels, the first is to use straw on-site to continuously improve the soil structure and improve soil fertility, which can effectively increase the organic matter and mineral nutrient content of cultivated land; the second is to continuously input organic fertilizers to increase the soil organic matter content, adjust the soil microbial community composition and biological activity, and improve the soil ecological function.

[0067] Irrigation system construction: constructing an irrigation system in the farmland planting area 1 ; including laying of sprinkler pipes 41 .

[0068] A water storage system is constructed, and crisscross drainage ditches 2 are constructed in the farmland planting area 1. The water storage system is connected to the drainage ditches 2 to collect rainwater, and the irrigation system is connected to the water storage system to use the rainwater in the water storage system for irrigation.

[0069] Build an intelligent agricultural management system to conduct real-time monitoring and intelligent regulation of the agricultural production process based on Internet of Things technology.

[0070] Optionally, building an intelligent agricultural management system includes:

[0071] The environmental detection module is used to monitor environmental condition information in real time to ensure the optimal conditions required for plant growth. The environmental condition information includes at least soil moisture information and temperature information. The environmental detection module includes a soil moisture sensor, a temperature sensor, and a light sensor.

[0072] The Internet of Things platform is used to connect environmental detection modules to achieve real-time data transmission and monitoring.

[0073] The control system includes a controller, which is connected to the water pump 43 and is used to control the start and stop of the water pump 43 and adjust the irrigation amount of the irrigation sprinkler system according to environmental condition information.

[0074] Since there are usually gravel and construction residue in the farmland planting area 1 in the city, directly using them for cultivation will affect the growth and harvest of crops. By cleaning the gravel and construction residue on the surface of the soil and continuously cleaning the gravel in the tillage layer within 3-5 years after recultivation, the soil cultivation performance can be effectively improved;

[0075] Since most of the farmland planting areas1 in cities are newly reclaimed arable land, the soil aggregate structure has been destroyed, the soil fertility level is poor, and there are generally gravel and construction debris. Direct use for farming will affect crop growth and harvesting. By cleaning the gravel and construction debris on the soil surface, continuously improving the soil within 3-5 years of reclamation, setting up drainage ditches, and reducing soil erosion, the soil cultivation performance can be effectively improved; through the intelligent agricultural management system, the agricultural production process can be monitored and intelligently controlled in real time, the intelligence level of agricultural production can be improved, and efficient agricultural production can be achieved.

[0076] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An urban agricultural irrigation system, characterized in that: include: Farmland planting area (1); Drainage ditches (2), the drainage ditches (2) are arranged in a crisscross pattern in the farmland planting area (1), and the top of the drainage ditch (2) is not higher than the soil surface of the farmland planting area (1); A cover plate (5) is arranged on the drainage ditch (2), and a plurality of water filtering holes (51) are provided on the cover plate (5); A water storage system, connected to the drainage ditch (2) for collecting rainwater; An irrigation sprinkler system is arranged in a farmland planting area (1) for irrigating crops, and the sprinkler irrigation system is connected to the water storage system.

2. An urban agricultural irrigation system according to claim 1, characterized in that: A filter layer (21) for filtering rainwater is provided between the drainage ditch (2) and the farmland planting layer, and a drainage hole (22) connected to the filter layer (21) is provided on the side wall of the drainage ditch (2).

3. The urban agricultural irrigation system according to claim 1, characterized in that: The top wall of the cover plate (5) is integrally formed with a mud block (52), and the top wall of the mud block (52) is provided with a water filter hole (51) penetrating the cover plate (5).

4. The urban agricultural irrigation system according to claim 3, characterized in that: The mud retaining block (52) is provided with an arc-shaped concave surface (521) at least on the side wall close to the farmland planting layer.

5. The urban agricultural irrigation system according to claim 1, characterized in that: The drainage ditch (2) comprises wall panels (23) arranged on both sides, and a floating mud guard assembly (6) is arranged on the wall panels (23). The floating mud guard assembly (6) can rise as the liquid level rises, and is used to prevent mud from entering the drainage ditch (2).

6. The urban agricultural irrigation system according to claim 5, characterized in that: The floating mudguard assembly (6) comprises: A floating member (61) is arranged on the top of the wall plate (23), and the floating member (61) can rise as the liquid level rises; a mud guard net (62), wherein the mud guard net (62) is connected to the floating member (61), A winding assembly (63), wherein the winding assembly (63) is arranged in the wall panel (23) and is used for winding the mud retaining net (62).

7. An urban agricultural irrigation system according to claim 6, characterized in that: The winding assembly (63) comprises a winding roller (631) and a reset member, the top wall of the wall panel (23) is provided with a strip groove (232) along the length direction of the wall panel (23), the winding roller (631) is rotatably arranged in the strip groove (232), the mud guard net (62) is wound on the winding roller (631), and the reset member is arranged in the strip groove (232) for driving the winding roller (631) to rotate so that the mud guard net (62) is wound on the winding roller (631).

8. The urban agricultural irrigation system according to claim 7, characterized in that: The wall panel (23) is fixedly provided with retaining walls (24) at both ends along the length direction of the drainage ditch (2); the side walls of the two retaining walls (24) close to each other are provided with guide grooves (241) in the vertical direction; the guide grooves (241) are connected to the strip grooves (232); and the two ends of the floating member (61) are slidably connected to the guide grooves (241).

9. An urban agricultural irrigation method, characterized in that: The following steps are involved: Clean the gravel and construction debris on the soil surface, and continue to clean the gravel in the soil plough layer within 3-5 years after recultivation to improve soil cultivation performance; Irrigation system construction: construct an irrigation system in the farmland planting area (1); A water storage system is constructed, and crisscross drainage ditches (2) are constructed in the farmland planting area (1). The water storage system is connected to the drainage ditches (2) to collect rainwater, and the irrigation system is connected to the water storage system to use the rainwater in the water storage system for irrigation; Build an intelligent agricultural management system to conduct real-time monitoring and intelligent regulation of the agricultural production process based on Internet of Things technology.

10. The urban agricultural irrigation method according to claim 9, characterized in that: The construction of intelligent agricultural management system includes: An environmental detection module is used to monitor environmental condition information in real time to ensure optimal conditions for plant growth, wherein the environmental condition information includes at least soil moisture information and temperature information; An Internet of Things platform, used to connect the environmental detection module to achieve real-time data transmission and monitoring; The control system adjusts the irrigation amount of the irrigation sprinkler system according to the environmental condition information.

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