A composite fertilizer device for saline-alkali soil

Abstract

The utility model relates to agricultural fertilizing device technical field especially a kind of composite fertilizing device for saline-alkali soil. Including: outer support and outer sleeve ring;The outer support bottom is equipped with water guide space;The outer sleeve ring inserts outer support middle part, and bottom surface is contacted with water guide space, the outer sleeve ring inside is equipped with first material cover and second material cover in proper order, water guide hole is uniformly distributed on the wall of outer sleeve ring, first material cover is filled with adsorption layer, second material cover is filled with slow-release layer;The utility model is directly entered into second material cover with slow-release layer contact in the process of irrigation, realize the slow-release of internal fertilizer, replace traditional scattering, ditching etc. mode, effectively reduce the volatilization and leaching phenomenon, while the adsorption layer in first material cylinder, can effectively realize the interception adsorption problem to salt, reach the purpose of regional salt control.

Description

Technical Field

[0001] This utility model relates to the field of agricultural fertilization equipment technology, and in particular to a compound fertilization device for saline-alkali land. Background Technology

[0002] Saline-alkali land is an important reserve of arable land in my country, but its high salinity and low fertility severely restrict the improvement of agricultural productivity. In the process of saline-alkali land improvement and agricultural production, rational fertilization is one of the key measures to increase crop yield. At present, fertilization of saline-alkali land mainly adopts conventional nitrogen fertilizers such as urea and compound fertilizers by broadcasting and furrow application. However, these fertilizers are prone to volatilization or leaching, and salts are easily migrated to the surface with water evaporation after irrigation, which inhibits seed germination or seedling growth. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a compound fertilizer application device for saline-alkali land, which addresses the above-mentioned technical deficiencies. During the irrigation process, the water flows directly into the second material jacket and comes into contact with the slow-release layer to achieve the slow release of fertilizer inside. This replaces traditional methods such as broadcasting and trenching, effectively reducing volatilization and leaching. At the same time, the adsorption layer in the first material jacket can effectively intercept and adsorb salt, achieving the purpose of regional salt control.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is a compound fertilization device for saline-alkali land, comprising: an outer support and an outer ring; the bottom of the outer support is provided with a water guiding space; the outer ring is inserted into the middle of the outer support and its bottom surface contacts the water guiding space; a first material sleeve and a second material sleeve are sequentially provided inside the outer ring; water guiding holes are distributed on the walls of the outer ring, the first material sleeve and the second material sleeve; the first material sleeve is filled with an adsorption layer and the second material sleeve is filled with a slow-release layer.

[0005] Preferably, the vertical cross-sectional shape of the water guiding space is conical, and a water-permeable hole is provided at the center.

[0006] Preferably, a support ring is provided above the water guiding space.

[0007] Preferably, the top of the outer bracket is provided with a threaded top cover.

[0008] Preferably, a water collection trough is provided above the outer support, and the bottom of the water collection trough is provided with multiple through-holes penetrating the outer support.

[0009] Preferably, the water collection tank is provided with external support legs.

[0010] Preferably, the inner wall of the outer sleeve is provided with a guide groove, and the outer walls of the first and second sleeves are both provided with guide strips that connect to the guide groove.

[0011] Preferably, both the first and second material sleeves are provided with handles at their inlets.

[0012] Preferably, the top of the outer ring is provided with multiple operating ports.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] 1. By deploying multiple of these devices in farmland, during irrigation, the water flow comes into contact with the slow-release layer in the second material jacket, achieving slow-release absorption of fertilizer, reducing volatilization and leaching. Furthermore, the adsorption layer in the first material jacket can adsorb and retain salt in a certain area, and the water guiding space can guide the salt water to infiltrate downwards, further reducing upward volatilization and ensuring normal crop growth.

[0015] 2. The outer support, outer ring, and first sleeve adopt a modular design, which facilitates assembly and layout, and makes it easy to replenish or replace the materials in the first and second sleeves, thus facilitating maintenance;

[0016] 3. The cooperation between the guide groove and the guide strip ensures the accuracy of the installation position during the installation of the first and second material sleeves, facilitates the alignment between the water guide holes, and avoids affecting the water flow.

[0017] 4. The design of the water collection trough can also fully collect and utilize rainwater, which can then enter the second feed jacket to achieve the effect of automatic fertilizer replenishment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a compound fertilization device for saline-alkali land.

[0019] Figure 2 This is a schematic diagram of the water collection tank structure;

[0020] Figure 3 This is a full sectional view of the external support frame;

[0021] Figure 4 This is a schematic diagram of the outer ring structure;

[0022] Figure 5 Here are schematic diagrams of the first and second material sleeves.

[0023] Figure 6 This is a schematic diagram of the parts at the first and second bushings.

[0024] In the diagram: 1. Outer support; 2. Outer ring; 3. First material sleeve; 4. Second material sleeve; 5. Water guide hole; 6. Adsorption layer; 7. Slow-release layer; 8. Guide strip; 9. Lifting handle; 101. Water guide space; 102. Water permeable hole; 103. Support ring plate; 104. Top cover; 105. Water collection tank; 106. Connecting hole; 107. External support leg; 201. Guide groove; 202. Operation port. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0026] Specific implementation method one: Combining Figure 1-6 As shown, a compound fertilizer application device for saline-alkali land includes: an outer support 1 and an outer ring 2; the bottom of the outer support 1 is provided with a water guiding space 101; the outer ring 2 is inserted into the middle of the outer support 1, and its bottom surface is in contact with the water guiding space 101; a first material sleeve 3 and a second material sleeve 4 are arranged sequentially inside the outer ring 2; water guiding holes 5 are distributed on the walls of the outer ring 2, the first material sleeve 3 and the second material sleeve 4; the first material sleeve 3 is filled with an adsorption layer 6, and the second material sleeve 4 is filled with a slow-release layer 7.

[0027] When in use, the device is pre-buried at a depth of 20-25 cm, with the height above ground being 5-10 cm. The water guide holes 5 on the outer ring 2 are in full contact with the soil. During irrigation, the water seeps into the first material sleeve 3 and can directly enter the second material sleeve 4. In the second material sleeve 4, the water comes into contact with the slow-release layer 7, achieving slow seepage of fertilizer, changing the release path and rate, thereby effectively reducing volatilization loss. The adsorption layer 6 in the first material sleeve 3 can also adsorb and retain salt in the depth area, and some salt enters the water guide space 101 with the water flow and seeps downward, avoiding salt retention in the shallow area and reducing the salt rise caused by subsequent water evaporation. At the same time, after the device is installed, due to its different properties from the surrounding soil, it can disrupt capillary continuity and reduce the upward movement of salt.

[0028] In a preferred embodiment, the adsorption layer 6 is composed of a porous adsorption material consisting of biochar (50%-60%), diatomaceous earth (20%-30%), and ion exchange resin (5%-10%), which can effectively achieve salt adsorption and retention.

[0029] In a preferred embodiment, the slow-release layer 7 is filled with humic acid compound slow-release fertilizer, such as fertilizer granules made by mixing and drying activated weathered coal, potassium hydroxide, water, nitrogen fertilizer, phosphate fertilizer, potassium fertilizer, etc., which can form a slow-release effect.

[0030] Preferred embodiments, in combination Figure 3 As shown, the vertical cross-sectional shape of the water guiding space 101 is conical, and a water-permeable hole 102 is provided at the center to achieve the function of water collection and diversion, so that salt can follow the water flow to seep deeper.

[0031] In a preferred embodiment, in order to achieve active drainage at the water guiding space 101, a hole structure similar to a water guiding hole can be processed on the outer wall of the water guiding space 101, so that soil moisture at the depth can directly enter the interior of the water guiding space 101 and achieve downward drainage.

[0032] Preferred embodiments, in combination Figure 3 As shown, a support ring 103 is provided above the water guiding space 101, which can provide support and positioning for the outer ring 2 and the first material sleeve 3.

[0033] Preferred embodiments, in combination Figure 1 and Figure 2 As shown, the top of the outer bracket 1 is machined with external threads, while the inner wall of the top cover 104 is machined with internal threads. The connection between the two is convenient for installation and disassembly, and it is easy to replenish the internal materials.

[0034] A preferred embodiment provides a novel slow-release method that utilizes rainwater for slow-release fertilization, combined with... Figure 1-3 As shown, a water collection trough 105 is provided above the outer support 1, and a plurality of connecting holes 106 penetrating the outer support 1 are provided at the bottom of the water collection trough 105. The water collection trough 105 can increase the unfolded area, thereby collecting more rainwater. The rainwater enters the second material sleeve 4 through the water guide hole 5 through the connecting hole 106, and flows out after contacting the slow release layer 7.

[0035] Preferred embodiments, in combination Figure 1 As shown, an external support leg 107 is provided at the water collection tank 105, which can play a temporary support role during the burial process, and also has a certain stabilizing effect after burial by contacting the ground.

[0036] Preferred embodiments, in combination Figure 4 and Figure 5 As shown, the inner wall of the outer ring 2 is provided with a guide groove 201, and the outer walls of the first material sleeve 3 and the second material sleeve 4 are both provided with guide strips 8 that connect to the guide groove 201. During the insertion of the first material sleeve 3 and the second material sleeve 4, the position of the two can be ensured to be accurate and can be aligned with the water guide hole 5 on the outer ring 2, thereby ensuring the water inlet effect.

[0037] Preferred embodiments, in combination Figure 6 As shown, both the first material sleeve 3 and the second material sleeve 4 are provided with a lifting handle 9 at their inlets, which makes it easy to remove the first material sleeve 3 and the second material sleeve 4 from the outer ring 2 for material replacement or replenishment.

[0038] Preferred embodiments, in combination Figure 2 and Figure 4 As shown, the top of the outer ring 2 is provided with multiple operating ports 202. The outer ring 2 can be lifted through the operating ports 202, which facilitates force operation. It can also be lifted with the help of tools such as hooks, and provides corresponding connection positions.

[0039] The outer ring 2 is a cylindrical shell (made of corrosion-resistant PVC), with a diameter of 15cm-20cm and a height of 30cm-35cm. Water guide holes 5 (2mm in diameter) are evenly opened on the side wall.

[0040] Combination Figure 2 As shown, in order to meet the needs of various scenarios, the external support 107 can be detachable. By machining threaded holes on the outer wall of the water collection tank 105 and the water guiding space 101, the external support 107 can be installed with screws. It can be arranged at the bottom or top of the outer bracket 1 to meet different fertilization needs.

[0041] In a preferred embodiment, to achieve circumferential positioning of the outer ring 2 and improve stability after installation, combined with Figure 3 and Figure 4 As shown, multiple positioning grooves are machined on the top inner wall of the outer bracket 1, and positioning strips that cooperate with the positioning grooves are machined on the top area of ​​the outer wall of the outer ring 2 to improve the stability after installation. The cross-sectional shape of both can adopt a semi-circular structure.

[0042] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A compound fertilizer application device for saline-alkali land, characterized in that, include: An outer support (1) and an outer ring (2); the bottom of the outer support (1) is provided with a water guiding space (101); the outer ring (2) is inserted into the middle of the outer support (1) and its bottom surface is in contact with the water guiding space (101); the inner side of the outer ring (2) is provided with a first material sleeve (3) and a second material sleeve (4); water guiding holes (5) are distributed on the walls of the outer ring (2), the first material sleeve (3) and the second material sleeve (4); the first material sleeve (3) is filled with an adsorption layer (6); and the second material sleeve (4) is filled with a slow-release layer (7).

2. The compound fertilizer application device for saline-alkali land according to claim 1, characterized in that: The vertical cross-sectional shape of the water guiding space (101) is conical, and a water-permeable hole (102) is provided at the center.

3. A compound fertilizer application device for saline-alkali land according to claim 1, characterized in that: A support ring (103) is provided above the water guiding space (101).

4. A compound fertilizer application device for saline-alkali land according to claim 1, characterized in that: The top of the outer bracket (1) is provided with a threaded top cover (104).

5. A compound fertilizer application device for saline-alkali land according to claim 1, characterized in that: The outer support (1) is provided with a water collection tank (105) above it, and the bottom of the water collection tank (105) is provided with a plurality of connecting holes (106) penetrating the outer support (1).

6. A compound fertilization device for saline-alkali land according to claim 5, characterized in that: The water collection tank (105) is provided with external support legs (107).

7. A compound fertilizer application device for saline-alkali land according to claim 1, characterized in that: The inner wall of the outer sleeve (2) is provided with a guide groove (201), and the outer walls of the first material sleeve (3) and the second material sleeve (4) are provided with guide strips (8) that connect to the guide groove (201).

8. A compound fertilizer application device for saline-alkali land according to claim 1, characterized in that: Both the first material sleeve (3) and the second material sleeve (4) are equipped with a lifting handle (9) at their inlets.

9. A compound fertilizer application device for saline-alkali land according to claim 1, characterized in that: The top of the outer ring (2) is provided with multiple operating ports (202).

Images