Special sugarcane fertilizer pelletizer with adjustable extrusion force and application of special sugarcane fertilizer pelletizer

Abstract

The invention discloses a special sugarcane fertilizer granulator with adjustable extrusion force and application. A special sugarcane fertilizer granulator with an adjustable extrusion force comprises a rack, a feeding hopper, an extrusion cavity, a hydraulic cylinder and extrusion rollers, the extrusion rollers comprise a fixed roller and an adjusting roller which rotate oppositely, and extrusion grooves are correspondingly formed in the fixed roller and the adjusting roller at intervals. According to the extrusion roller, the fixed roller and the adjusting roller are combined, the adjusting roller is controlled by the hydraulic cylinder to move, and the distance between the fixed roller and the adjusting roller can be adjusted as required, so that the extrusion force between the fixed roller and the extrusion roller is adjusted, and the fertilizer preparation requirement is better met. Wherein the extrusion grooves in the fixed roller and the adjusting roller form a sphere or polygon with the diameter of 3-4.5 mm, the extrusion pressure of the fixed roller and the adjusting roller is adjusted to be 20-52N, the obtained sugarcane extrusion fertilizer is high in granulation rate, uniform in particle size and not prone to adhesion, the disintegration speed of fertilizer particles after the fertilizer particles are applied to soil can be controlled, and the yield of the sugarcane extrusion fertilizer is improved. The sugarcane growth speed is synchronous with the fertilizer nutrient release speed, and the sugarcane yield is effectively improved.

Description

Technical Field

[0001] The invention belongs to the technical field of fertilizer preparation equipment, and particularly relates to a special fertilizer granulator for sugarcane with adjustable extrusion force and application thereof. Background Art

[0002] The promotion of mechanized planting, management, and harvesting technologies has significantly improved the planting efficiency and yield of sugarcane and reduced production costs. Mechanized fertilization is required during the mechanized planting and management of sugarcane. Compared with manual fertilization, mechanized fertilization can not only improve fertilization efficiency, but also better control fertilization depth, which can further improve sugarcane production efficiency, yield, and quality.

[0003] At present, there are also some problems with mechanized fertilization of sugarcane, such as: mechanized fertilization of sugarcane is prone to caking and uneven fertilization, which affects the production of sugarcane groups and sugarcane yields. The inventor's team found in preliminary research that the effect of mechanized fertilization of sugarcane is closely related to the particle size and quality of the fertilizer. The particle size and compactness of the fertilizer not only affect the uniformity of mechanized fertilization of sugarcane, but also the release rate of nutrients in the fertilizer. At present, the fertilizer used in mechanized planting of sugarcane is generally extruded granular fertilizer. The development of special extruded fertilizers for sugarcane suitable for mechanized planting and management can further improve the effect of mechanized fertilization of sugarcane, which is conducive to the promotion of mechanized planting of sugarcane throughout the process. Summary of the invention

[0004] The purpose of the present invention is to provide a special fertilizer granulator for sugarcane with adjustable extrusion force and its application, so as to solve the problems that the existing mechanized fertilization of sugarcane is prone to agglomeration and the release rate is not suitable for mechanized management.

[0005] The specific technical solutions are as follows:

[0006] A fertilizer granulator for sugarcane with adjustable extrusion force comprises a frame, a feed hopper, an extrusion chamber and an extrusion roller. An extrusion chamber is arranged below the feed hopper, and an extrusion roller is installed in the extrusion chamber.

[0007] The squeezing roller comprises a fixed roller and an adjusting roller rotating in opposite directions, and the fixed roller and the adjusting roller are provided with squeezing grooves at intervals and in correspondence with each other, and the squeezing grooves on the fixed roller and the adjusting roller form a sphere or polygon with a diameter of 3-4.5 mm;

[0008] A hydraulic cylinder is provided outside the extrusion chamber, and the adjusting roller is connected to the hydraulic cylinder through a support frame penetrating the extrusion chamber. The hydraulic cylinder drives the adjusting roller to move horizontally, thereby adjusting the distance between the adjusting roller and the fixed roller, and further adjusting the extrusion force between the fixed roller and the extrusion roller. The extrusion force between the fixed roller and the adjusting roller is 20-52N.

[0009] Preferably, the fixed roller and the adjusting roller both include an extrusion roller body and an extrusion film sleeve, wherein the extrusion film sleeve is sleeved on the extrusion roller body and is thickened in the extrusion groove. The extrusion film sleeve can be replaced according to the degree of use.

[0010] Preferably, a breaking device is further provided at the lower part of the extrusion chamber, and the breaking device includes two beating rollers rotating in opposite directions, the beating rollers are transmission-connected to the extrusion rollers, and the beating rollers are provided with beating teeth at intervals, and the positions of the beating teeth and the extrusion grooves are staggered.

[0011] Preferably, the beating roller is also provided with fan blades at intervals, the length of the fan blades being smaller than the length of the beating teeth. The fan blades are hinged to the beating roller.

[0012] Preferably, the beating roller is detachably connected to the extrusion chamber via an I-shaped connecting groove and bolts. Preferably, a baffle is also provided at the I-shaped connecting groove.

[0013] Preferably, a screen is provided at the bottom of the extrusion chamber.

[0014] Another technical solution of the present application: the use of the sugarcane granular fertilizer prepared by the above-mentioned sieve-adjustable extrusion force sugarcane special fertilizer granulator during sugarcane planting or sugarcane intertillage fertilization.

[0015] Furthermore, a machine with a spiral fertilizer dispenser is used for fertilization.

[0016] Compared with the existing technology, the present invention has the following beneficial effects:

[0017] 1. The squeezing roller of the present invention is a combination of a fixed roller and an adjusting roller, wherein the adjusting roller is controlled to move by a hydraulic cylinder, and the spacing between the fixed roller and the adjusting roller can be adjusted as needed, thereby adjusting the squeezing force between the fixed roller and the squeezing roller to better meet the fertilizer preparation requirements. The squeezing grooves on the fixed roller and the adjusting roller form a sphere or polygon with a diameter of 3-4.5 mm, and the squeezing pressure of the fixed roller and the adjusting roller is adjusted to 20-52N. The obtained sugarcane squeezed fertilizer has a high granulation rate, uniform particle size, and is not easy to stick together. The disintegration speed of the fertilizer particles after being applied to the soil can be controlled to achieve the synchronization of the sugarcane growth speed and the fertilizer nutrient release speed, effectively increasing the sugarcane yield.

[0018] 2. The present invention sets a dispersing device under the squeezing roller, which includes a beating roller and beating teeth arranged on the beating roller. The beating teeth are staggered with the positions of the squeezing grooves, and the fertilizer cake obtained by squeezing can be beaten into several small pieces, and evenly beat at the connection of the particle size, which does not affect the formed fertilizer particles, and is conducive to improving the granulation rate of sugarcane squeezed fertilizer. Among them, the fan blades are arranged on the beating roller, which is conducive to further dispersing the fertilizer particles, and preliminarily screening them through the screen at the bottom of the squeezing chamber, further improving the processing efficiency of the fertilizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0020] Figure 1 The present invention is a schematic structural diagram of a fertilizer granulator for sugar cane with adjustable extrusion force.

[0021] Figure 2 It is a schematic diagram of the connection structure between the squeezing roller and the breaking device of the present invention.

[0022] Figure 3 It is a schematic structural diagram of the extrusion roller of the present invention.

[0023] Figure 4 It is a structural schematic diagram of the breaking up device of the present invention.

[0024] Among them, the main reference numerals are described as follows:

[0025] 1. Frame; 2. Feed hopper; 3. Extrusion chamber; 4. Hydraulic cylinder; 5. Extrusion roller; 51. Fixed roller; 511. Extrusion roller body; 512. Extrusion film sleeve; 513. Extrusion groove; 52. Adjusting roller; 6. Breaking device; 61. Beating roller; 62. Beating teeth; 63. Fan blades; 7. Screen; 8. Support frame; 81. Adjusting rod; 9. Rotating motor. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be clearly and completely described below in conjunction with 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.

[0027] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "top", "bottom", "top surface", "bottom surface", "inside", "outside", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0028] In the description of the present invention, the meaning of "several" is one or more, the meaning of "more" is more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there are terms "first", "second" and "third" in the description, they are only used for the purpose of description and distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" and "set" should be understood in a broad sense. For example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is a description of an embodiment of the present invention based on its overall structure.

[0030] Example 1

[0031] like Figure 1 As shown, a fertilizer granulator for sugarcane with adjustable extrusion force comprises a frame 1, a feed hopper 2, an extrusion chamber 3, a hydraulic cylinder 4, an extrusion roller 5, a dispersing device 6 and a screen 7. The bottom of the feed hopper 2 is connected with the extrusion chamber 3. The extrusion roller 5 is arranged in the extrusion chamber 3 and driven and adjusted by the hydraulic cylinder 4. The dispersing device 6 is arranged below the extrusion roller 5, and the screen 7 is arranged at the bottom of the extrusion chamber 3. The extrusion roller 5 of the present invention is a combination of a fixed roller 51 and an adjusting roller 52, wherein the adjusting roller 52 is controlled to move by the hydraulic cylinder 4. The spacing between the fixed roller 51 and the adjusting roller 52 can be adjusted as needed, thereby adjusting the extrusion force between the fixed roller 51 and the extrusion roller 5 to better meet the fertilizer preparation requirements. The present invention solves the problem that the existing mechanized fertilization of sugarcane is prone to agglomeration and the release rate is not suitable for mechanized management.

[0032] Specific, combined Figure 1The extrusion roller 5 includes a fixed roller 51 and an adjusting roller 52 that rotate in opposite directions. Both ends of the fixed roller 51 are connected to the cavity wall of the extrusion cavity 3 through bearings and can rotate relative to the cavity wall of the extrusion cavity 3. Both ends of the adjusting roller 52 are rotatably connected to the support frame 8 through bearings, and the support frame 8 is slidably connected to the cavity wall of the extrusion cavity 3. The support frame 8 is also provided with an adjusting rod 81 that is perpendicular to the rotation axis of the adjusting roller 52. The adjusting rod 81 passes through the cavity wall of the extrusion cavity 3 and is connected to the hydraulic cylinder 4. The hydraulic cylinder 4 drives the support frame 8 and the adjusting roller 52 to move horizontally, thereby adjusting the distance between the adjusting roller 52 and the fixed roller 51, and further adjusting the extrusion force between the fixed roller 51 and the extrusion roller 5. Combined with Figure 1 and Figure 2 , the rotating shafts of the fixed roller 51 and the adjusting roller 52 penetrate the cavity wall of the extrusion cavity 3, and are driven to rotate by the rotating motor 9, and the output shaft of the rotating motor 9 is respectively connected to the rotating shafts of the fixed roller 51 and the adjusting roller 52 through a transmission device. For details, please refer to the connection of the existing extrusion roller 5. Among them, the adjusting roller 52 is connected to the rotating motor 9 through a belt transmission device and a transmission gear, respectively. The belt transmission device is also provided with an adjustable tensioning wheel. When the adjusting roller 52 moves, the tensioning wheel is adaptively adjusted to realize the transmission after the adjusting roller 52 moves. In this embodiment, the extrusion pressure of the fixed roller 51 and the adjusting roller 52 is 20-52N, which can meet the extrusion force requirements of different fertilizers.

[0033] Combination Figure 3 , the fixed roller 51 and the adjusting roller 52 both include a squeezing roller 5 body and a squeezing film sleeve 512, the squeezing film sleeve 512 is sleeved on the squeezing roller 5 body, the fixed roller 51 and the adjusting roller 52 are provided with squeezing grooves 513 at intervals and correspondingly, and the squeezing grooves 513 are thickened to reduce wear. In this embodiment, the squeezing grooves 513 on the fixed roller 51 and the adjusting roller 52 form a sphere or polygon with a diameter of 3-4.5 mm. That is, the particle size of the extruded fertilizer is 3-4.5 mm. Experiments have shown that fertilizers within this particle size range can better cooperate with sugarcane fertilization machinery, which is conducive to uniform fertilization. When the squeezing groove 513 is greatly worn, or when it is necessary to produce fertilizers of different particle sizes, the squeezing film sleeve 512 can be replaced, which is easy to operate and can extend the service life of the squeezing roller 5 body.

[0034] Combination Figure 1-2The dispersing device 6 includes two beating rollers 61 rotating in opposite directions. The two beating rollers 61 are respectively connected to the fixed roller 51 and the adjusting roller 52 through a transmission belt, and an adjustable tensioning wheel is provided on the transmission belt. The two ends of the beating roller 61 are detachably connected to the extrusion chamber 3 through an "I"-shaped connecting groove and a bolt, so that the distance between the beating roller 61 and the fixed roller 51 and the adjusting roller 52 can be adjusted as needed. Figure 4 , beating teeth 62 are arranged at intervals on the beating roller 61, and the positions of the beating teeth 62 and the extrusion groove 513 are staggered. The fertilizer cake obtained by extrusion can be beaten into several small pieces, and evenly beaten at the connection of the particle size, which does not affect the formed fertilizer particles, and is conducive to improving the granulation rate of sugarcane extruded fertilizer. Preferably, fan blades 63 are also arranged at intervals on the beating roller 61, and the length of the fan blades 63 is less than the length of the beating teeth 62, and the width of the fan blades 63 is greater than the width of the beating teeth 62. The provision of the fan blades 63 is conducive to further dispersing the fertilizer particles, and preliminarily screening them through the screen 7 at the bottom of the extrusion chamber 3, further improving the processing efficiency of the fertilizer.

[0035] This equipment is used to produce sugarcane compound fertilizer granules with a mass ratio of nitrogen, phosphorus and potassium (N:P5O2:K2O) of 22:5:18. First, put the prepared fertilizer raw materials into the feed hopper 2, and control the feeding speed. The fertilizer raw materials enter the extrusion chamber 3 through the feed hopper 2, and form cake-shaped fertilizers with interval protrusions under the extrusion of the fixed roller 51 and the adjusting roller 52. The cake-shaped fertilizers are beaten into small pieces by the breaking device 6 and preliminarily screened at the screen 7. The screen 7 is set in an inclined shape, and the fertilizer is introduced into the conveyor belt for further screening and packaging. The sugarcane extruded fertilizer obtained by this method has a high granulation rate, uniform particle size, and is not easy to stick.

[0036] Example 2

[0037] The sugarcane fertilizer granulator with adjustable extrusion force of Example 1 is used for extrusion fertilizer production and then used for intertillage fertilization of sugarcane. The existing fertilizer spreader with a spiral fertilizer applicator is used for mechanical fertilization, the fertilization row spacing is 1.4 meters, and soil is cultivated. The fertilizer is a sugarcane compound fertilizer granule with a mass ratio of nitrogen, phosphorus and potassium (N:P5O2:K2O) of 22:5:18, and the fertilizer application amount is 50 kg per mu.

[0038] Before fertilization, the nitrogen, phosphorus and potassium nutrients in the soil were 57 mg / kg, 7 mg / kg and 67 mg / kg respectively.

[0039] Test the soil nutrients again 20 days after fertilizing.

[0040] Table 1 Test results of nitrogen nutrients in soil after mechanical fertilization of sugarcane special fertilizers with different particle sizes

[0041]

[0042] Table 2 Test results of phosphorus nutrients in soil after mechanical fertilization of sugarcane special fertilizers with different particle sizes

[0043]

[0044]

[0045] Table 3 Test results of potassium nutrient in soil after mechanical fertilization of sugarcane special fertilizers with different particle sizes

[0046]

[0047] It can be seen from Table 1-3 that 3.0-4.5 mm sugarcane-specific fertilizer has a better nutrient release rate. About 20 days after fertilization, the nutrient release reaches a higher value. At this time, sugarcane is in the vigorous tillering period, which is beneficial to the growth of sugarcane.

[0048] Example 3

[0049] The sugarcane compound fertilizer particles prepared in Example 1 were used for sugarcane planting. The test site is located in a sugarcane planting area in Long'an County, Nanning City, Guangxi Province. The planting area is divided into 3 plots, and each plot is planted with 3 mu. The planted sugarcane variety is Guitang No. 44, which is planted in a wide and narrow row mode, with a wide row of 1.8 meters and a narrow row of 0.3 meters. An integrated sugarcane planter (such as patent 2021115990146) is used to plant sugarcane, and the processes of fertilization, sowing, and covering soil are completed at one time. Among them, 20kg of sugarcane special fertilizer is applied per mu as base fertilizer, and the sowing amount is 4800-5000 buds / mu. Intertillage and fertilization are carried out twice, 40kg of sugarcane special fertilizer is applied each time, and sugarcane field management is carried out according to conventional methods. Among them, the sugarcane special fertilizer is a compound fertilizer with a ratio of 22:5:18 of nitrogen, phosphorus and potassium (N:P5O2:K2O). The raw materials for producing sugarcane: nitrogen, phosphorus and potassium simple fertilizers, are mixed and granulated at a mass ratio of 22:5:18 to obtain sugarcane fertilizers with a particle size of less than 3.0 mm, 3.0-4.5 mm and more than 4.5 mm.

[0050] The planting and management methods of the three test plots were the same (all using the above planting methods), the difference was the different particle sizes of the base fertilizer: the first test plot used sugarcane-specific fertilizers with a particle size of less than 3.0 mm, the second test plot used sugarcane-specific fertilizers with a particle size of 3.0-4.5 mm, and the third test plot used sugarcane-specific fertilizers with a particle size of more than 4.5 mm. The sugarcane yield and quality of the three test plots are shown in Table 4.

[0051] Table 4 Sugarcane growth under mechanical fertilization management of sugarcane special fertilizers with different particle sizes

[0052]

[0053] It can be seen from Table 4 that fertilizers with a particle size of 3.0-4.5 mm are more conducive to sugarcane absorption and are beneficial to increasing sugarcane production and income.

[0054] Example 4

[0055] The sugarcane compound fertilizer particles prepared in Example 1 were used for sugarcane planting. The test site is located in the sugarcane planting area of ​​Wuming District, Nanning City, Guangxi Province. The planting area is divided into 6 plots, and each plot is planted with 3 mu. The planted sugarcane variety is Guitang No. 44, which is planted in a wide and narrow row mode, with a wide row of 1.8 meters and a narrow row of 0.3 meters. An integrated sugarcane planter is used to plant sugarcane, and the processes of fertilization, sowing, and covering soil are completed at one time. Among them, 20kg of sugarcane special fertilizer is applied per mu as base fertilizer, and the sowing amount is 4800-5000 buds / mu. Intertillage and fertilization are carried out twice, with 40kg of sugarcane special fertilizer applied each time, and sugarcane field management is carried out according to conventional methods. Among them, the sugarcane special fertilizer is a compound fertilizer with a nitrogen, phosphorus and potassium (N: P5O2: K2O) ratio of 22:5:18.

[0056] The planting and management methods of the six test plots were the same (all using the above planting methods), the difference was the different extrusion pressures during the preparation of the base fertilizer: 15N, 19N, 20N, 30N, 40N, 50N, 53N, and 60N were used for extrusion fertilizer preparation. The sugarcane yield and quality of the eight test plots are shown in Table 5.

[0057] Table 5 Sugarcane growth after application of fertilizers with different extrusion pressures

[0058]

[0059] It can be seen from Table 5 that the fertilizer prepared by 20-50N extrusion is more conducive to the absorption of sugarcane and is beneficial to increasing sugarcane production and income.

[0060] In summary, the squeezing roller of the present invention is a combination of a fixed roller and an adjusting roller, wherein the adjusting roller is controlled to move by a hydraulic cylinder, and the spacing between the fixed roller and the adjusting roller can be adjusted as needed, thereby adjusting the squeezing force between the fixed roller and the squeezing roller to better meet the fertilizer preparation requirements. Among them, the squeezing grooves on the fixed roller and the adjusting roller form a sphere or polygon with a diameter of 3-4.5 mm, and the squeezing pressure of the fixed roller and the adjusting roller is adjusted to 20-52N. The obtained sugarcane squeezed fertilizer has a high granulation rate, uniform particle size, and is not easy to stick together. The disintegration speed of the fertilizer particles after being applied to the soil can be controlled to achieve the synchronization of the sugarcane growth speed and the fertilizer nutrient release speed, effectively increasing the sugarcane yield.

[0061] The foregoing descriptions of specific exemplary embodiments of the present invention are for the purpose of explanation and illustration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although an embodiment of the present invention has been shown and described, this specific embodiment is only an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can make modifications, substitutions, variations and various selections and changes to the embodiments without creative contribution as needed without departing from the principles and purpose of the present invention after reading this specification, but they are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A fertilizer granulator for sugarcane with adjustable extrusion force, comprising a frame, a feed hopper, an extrusion chamber and an extrusion roller, wherein an extrusion chamber is provided below the feed hopper, and an extrusion roller is installed in the extrusion chamber, characterized in that: The squeezing roller comprises a fixed roller and an adjusting roller rotating in opposite directions, and the fixed roller and the adjusting roller are provided with squeezing grooves at intervals and in correspondence with each other, and the squeezing grooves on the fixed roller and the adjusting roller form a sphere or polygon with a diameter of 3-4.5 mm; A hydraulic cylinder is provided outside the extrusion chamber, and the adjusting roller is connected to the hydraulic cylinder through a support frame penetrating the extrusion chamber. The hydraulic cylinder drives the adjusting roller to move horizontally, thereby adjusting the distance between the adjusting roller and the fixed roller, and further adjusting the extrusion force between the fixed roller and the extrusion roller. The extrusion force between the fixed roller and the adjusting roller is 20-52N.

2. The adjustable extrusion force sugarcane fertilizer granulator according to claim 1, characterized in that: The fixed roller and the adjusting roller both include an extrusion roller body and an extrusion film sleeve. The extrusion film sleeve is sleeved on the extrusion roller body and is thickened in the extrusion groove.

3. The adjustable extrusion force sugarcane fertilizer granulator according to claim 1, characterized in that: A breaking device is also provided at the lower part of the extrusion chamber. The breaking device includes two beating rollers rotating in opposite directions. The beating rollers are transmission-connected to the extrusion rollers. Beating teeth are arranged at intervals on the beating rollers. The positions of the beating teeth and the extrusion grooves are staggered.

4. The adjustable extrusion pressure sugarcane fertilizer granulator according to claim 3, characterized in that: The beating roller is also provided with fan blades at intervals, and the length of the fan blades is smaller than the length of the beating teeth.

5. The adjustable extrusion force sugarcane fertilizer granulator according to claim 3, characterized in that: The beating roller is detachably connected to the extrusion chamber via an I-shaped connecting groove and bolts.

6. The adjustable extrusion force sugarcane fertilizer granulator according to claim 1, characterized in that: A screen is provided at the bottom of the extrusion chamber.

7. Use of the sugarcane granular fertilizer prepared by the sugarcane fertilizer granulator with adjustable extrusion force according to any one of claims 1 to 6 during sugarcane planting or sugarcane intertillage fertilization.

8. Use according to claim 7, using a machine with a spiral fertilizer dispenser for fertilization.

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