Deep fertilization equipment in farmland
Technical Field
The invention relates to the technical field of farmland fertilization, in particular to farmland deep fertilization equipment.
Background
The fertilizing equipment is a common agricultural machine and is used for quantitatively and uniformly applying fertilizer into a farmland, the fertilizing equipment is usually composed of a frame, a feed box for containing fertilizer, a fertilizing mechanism for quantitatively discharging fertilizer, a ditching mechanism for ditching and the like, wheels or tracks are usually arranged, the fertilizing equipment can walk in the farmland so as to apply the fertilizer into different areas, the conventional fertilizing equipment can be generally divided into a hand-push type fertilizing equipment and a vehicle-mounted fertilizing equipment according to whether the frame is provided with power or not, when the fertilizing equipment walks along the edges of crops needing to be fertilized, the ditching mechanism ditches, and the fertilizing mechanism inputs a proper amount of fertilizer into the ditches so as to achieve the aim of fertilizing;
The existing fertilizer distributor is used in a process of only spreading fertilizer on the surface of soil, or putting fertilizer into a trench formed by a ditching mechanism, the fertilizer cannot be fused into the soil or cannot penetrate into a deeper position in the soil, so that the internal environment of the soil cannot be improved, and before the fertilizer is dissolved into the soil, a certain amount of fertilizer can be volatilized due to the property of the fertilizer, so that the fertilizer actually dissolved in the soil is reduced, the soil cannot be fertilized enough, the fertilization effect is poor, and even crop yield reduction is caused.
Disclosure of Invention
The invention aims to provide farmland deep fertilization equipment so as to solve the problems in the background technology.
The farmland deep fertilization equipment comprises a frame, an engine fixedly arranged on the frame, two traveling wheels rotatably arranged on the frame and driven by the engine, a bracket fixedly arranged on the frame, a first sliding rod slidably arranged on the bracket, a plurality of coulters arranged on the first sliding rod, a screw rod arranged on the first sliding rod, and a limit seat matched with the screw rod and fixedly arranged on the bracket;
The fixed mounting has fertile feed bin on the support, and fertile feed bin bottom is provided with a plurality of blown down tank, and fertilizer feed bin one side fixed mounting has the motor, and fertilizer feed bin internal rotation is installed and is rotated the pivot of being connected with the motor, is provided with a plurality of storage tank in the pivot, and fertilizer feed bin lower extreme fixed mounting has a plurality of collecting hopper, collecting hopper and blown down tank one-to-one, and every collecting hopper lower extreme intercommunication has the feed bin, and every feed bin lower extreme is provided with the feed bin, and every feed bin internal rotation is installed and is rotated the carousel of being connected with the pivot, and fixed mounting has a plurality of baffle on every carousel, and the baffle is circumference distribution.
Preferably, sleeve is sleeved on the rotating shaft, sleeve is transversely and slidably installed in the fertilizer bin, a plurality of feed inlets and discharge outlets are respectively formed in the upper end and the lower end of the sleeve, the feed inlets and the discharge outlets are in one-to-one correspondence with the storage tanks, baffles are transversely and slidably installed in each storage tank, and each baffle is rotatably installed on the inner wall of the sleeve.
Preferably, a guide rod is fixedly arranged at one end of the rotating shaft, one end of the guide rod is fixedly connected with the output end of the motor, a conical wheel is transversely and slidably arranged on the guide rod, one end of the conical wheel is rotationally connected with one end of the sleeve, a rotating rod connected with the rotating shaft is rotationally arranged on the fertilizer bin, each rotating disc is fixedly arranged on the rotating rod, a driving wheel is fixedly arranged at one end of the rotating rod, a driving belt is arranged between the driving wheel and the conical wheel in a driving manner, and the length of the conical wheel is identical with that of the storage tank.
Preferably, the fixed seat is fixedly installed on the fertilizer bin, the elastic rods are fixedly installed on two sides of the fixed seat, each elastic rod is always in a compressed state, a limiting part for limiting the transmission belt is fixedly installed at one end of each elastic rod, four rollers are rotatably installed in the two limiting parts, and the four rollers are located around the transmission belt respectively.
Preferably, a threaded disc is rotatably arranged at one end of the sleeve, a telescopic rod is fixedly arranged at one side of the threaded disc, a knob is fixedly arranged at one end of the telescopic rod, the knob is rotatably arranged on the fertilizer bin, and a threaded groove matched with the threaded disc is formed in the fertilizer bin.
Preferably, the sleeve is fixedly provided with a plurality of limiting strips, a plurality of guide grooves for limiting the limiting strips are arranged in the fertilizer bin, and the guide grooves correspond to the limiting strips one by one.
Preferably, each discharging bin and the communicating position of the collecting hopper are provided with a feeding bin for prolonging the feeding time between the adjacent partition plates, and each feeding bin and the communicating position of the collecting hopper are rotatably provided with a pushing rod.
Preferably, the stirring shaft is rotatably arranged in the fertilizer bin, one end of the stirring shaft is fixedly provided with a gear, the guide rod is rotatably provided with a gear, the two gears are meshed with each other, and the stirring shaft is fixedly provided with a plurality of spiral strips for pushing fertilizer to the discharge chute.
Preferably, a second slide bar is slidably arranged on the support, a plurality of springs are fixedly arranged at the lower end of the second slide bar, the springs are in one-to-one correspondence with the coulters, the lower ends of the springs are fixedly connected with the corresponding coulters, one end of each coulter is rotatably arranged on the first slide bar, a plurality of connecting rods are fixedly connected between the first slide bar and the second slide bar, and the screw is rotatably arranged at the upper end of one of the connecting rods.
Preferably, a plurality of flat soil spades are fixedly arranged on one side of the fertilizer bin, the flat soil spades are in one-to-one correspondence with the discharging bin, and each flat soil spade is arranged in a V shape.
Compared with the prior art, the invention has the beneficial effects that:
According to the invention, the first sliding rod drives the coulter to lift by utilizing the cooperation of the screw rod and the limiting seat, the height of the coulter is adjusted, ditches with different depths are conveniently carried out on different soils, meanwhile, one end of the coulter is pushed downwards by the elastic force of the spring, a good ditching effect is kept, when the coulter encounters a harder stone, the compression spring is rotated upwards at one end of the coulter, and the fluency of the coulter in the ditching process is improved.
According to the invention, the knob is utilized to drive the telescopic rod and the threaded disc to synchronously rotate, the telescopic rod is enabled to stretch and retract through the matching of the threaded disc and the threaded groove, meanwhile, the threaded disc drives the sleeve to slide in the fertilizer bin, the baffle is driven to slide in the storage groove in the sliding process of the sleeve, the available volume of the storage groove is adjusted, the fertilizer storage amount in the storage groove can be adjusted according to actual requirements, and the actual volume of the storage groove cannot be influenced by rotation of the rotating shaft.
According to the invention, the sleeve is utilized to drive the cone pulley to slide, when the amount of fertilizer required by crops is large, the rotary knob drives the partition plates to expand the actual volume of the storage tank, and the transmission belt is matched with the position with larger diameter of the cone pulley, so that the rotating speed of the rotary table driven by the rotary rod is increased, the fertilizer between two adjacent partition plates can be thrown out faster, more fertilizer can be scattered into the soil within the same time to meet the requirements of the crops, and if the amount of fertilizer required by the crops is small, the fertilizer scattered into the soil in the same way is reduced.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the coulter of the present invention;
FIG. 3 is a schematic view of the structure of the screw in the present invention;
FIG. 4 is a schematic view of the structure of the interior of the fertilizer bin of the invention;
FIG. 5 is a schematic view of the structure of the spout and the shaft of the present invention;
FIG. 6 is a schematic structural view of a stirring shaft according to the present invention;
FIG. 7 is a schematic view of the structure of the feed inlet and the discharge outlet in the present invention;
FIG. 8 is a schematic view of the cone pulley of the present invention;
FIG. 9 is a schematic view of a roller structure according to the present invention;
fig. 10 is a schematic structural view of the discharging bin and the charging bin in the invention.
The device comprises a frame 1, a motor 2, a first sliding rod 5, a travelling wheel 6, a connecting rod 7, a coulter 8, a spring 9, a screw rod 10, a limit seat 11, a fertilizer bin 12, a discharge chute 13, a rotating shaft 14, a storage chute 15, a sleeve 16, a feed inlet 17, a discharge outlet 18, a baffle plate 19, a limit bar 20, a guide chute 21, a screw disc 22, a screw groove 23, a telescopic rod 24, a knob 25, a guide rod 26, a motor 27, a gear 28, a stirring shaft 29, a screw rod 30, a conical wheel 31, a driving wheel 32, a driving belt 33, a fixed seat 34, an elastic rod 35, a limit piece 36, a roller wheel 37, a material hopper 38, a discharge bin 39, a material adding bin 40, a discharge chute 41, a pushing rod 42, a rotating rod 43, a turntable 44, a baffle plate 45, a soil leveling shovel 46 and a second sliding rod.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to figures 1-10, the invention provides a technical scheme that farmland deep fertilization equipment comprises a frame 1, an engine 2 fixedly arranged on the frame 1, two travelling wheels 3 rotatably arranged on the frame 1 and driven by the engine 2, a support 4 fixedly arranged on the frame 1, a first slide rod 5 slidably arranged on the support 4, a plurality of coulters 7 arranged on the first slide rod 5, a screw 9 arranged on the first slide rod 5, a limit seat 10 fixedly arranged on the support 4 and matched with the screw 9, a second slide rod 46 slidably arranged on the support 4, a plurality of springs 8 fixedly arranged at the lower ends of the second slide rod 46, the springs 8 and the coulters 7 are in one-to-one correspondence, the lower ends of each spring 8 are fixedly connected to the corresponding coulters 7, one end of each coulter 7 is rotatably arranged on the first slide rod 5, a plurality of connecting rods 6 are fixedly connected between the first slide rod 5 and the second slide rod 46, the screw 9 is rotatably arranged at the upper end of one of the connecting rods 6, the screw 9 is matched with the limit seat 10 through the screw 9, the screw 9 drives the connecting rods 6 and the first slide rod 5 to drive the coulters 7 to move synchronously, the coulters 7 are not to collide with one end of the corresponding coulters 7, and the other end of the coulters 7 is not easy to be compressed, and the other end of the coulters 7 is not easy to move smoothly, and the coulters 7 are not easy to collide with one end of the corresponding coulters 7, and the other end is not easy to be compressed to move up and down, and the coulter 7 is easy to move smoothly, and the end is more than the coulter 7 to move to the upper and lower than the one end and more than the coulter 7.
The support 4 is fixedly provided with a fertilizer bin 11, the bottom of the fertilizer bin 11 is provided with a plurality of discharging grooves 12, one side of the fertilizer bin 11 is fixedly provided with a motor 26, the fertilizer bin 11 is rotatably provided with a rotating shaft 13 connected with the motor 26, the rotating shaft 13 is provided with a plurality of storage tanks 14, the storage tanks 14 are in one-to-one correspondence with the discharging grooves 12, the rotating shaft 13 is sleeved with a sleeve 15, the sleeve 15 is transversely and slidably arranged in the fertilizer bin 11, the upper end and the lower end of the sleeve 15 are respectively provided with a plurality of feeding holes 16 and a discharging hole 17, the feeding holes 16 and the discharging holes 17 are respectively in one-to-one correspondence with the storage tanks 14, each storage tank 14 is internally and transversely and slidably provided with a baffle 18, each baffle 18 is rotatably arranged on the inner wall of the sleeve 15, one end of the sleeve 15 is rotatably provided with a threaded disc 21, one side of the threaded disc 21 is fixedly provided with a telescopic rod 23, one end of the telescopic rod 23 is fixedly provided with a knob 24, the knob 24 is rotatably arranged on the fertilizer bin 11, a threaded groove 22 matched with the threaded disc 21 is arranged in the fertilizer bin 11, a plurality of limit strips 19 are fixedly arranged on the sleeve 15, a plurality of guide grooves 20 used for limiting the limit strips 19 are arranged in the fertilizer bin 11, the guide grooves 20 are in one-to-one correspondence with the limit strips 19, a plurality of collecting hoppers 37 are fixedly arranged at the lower end of the fertilizer bin 11, the collecting hoppers 37 are in one-to-one correspondence with the discharging grooves 12, the rotary knob 24 drives the telescopic rod 23 to synchronously rotate with the threaded disc 21, the telescopic rod 23 stretches and contracts through the matching of the threaded disc 21 and the threaded groove 22, meanwhile, the threaded disc 21 drives the sleeve 15 to slide in the fertilizer bin 11, the sleeve 15 transversely slides in the fertilizer bin 11 without rotating through the limit strips 19 of the guide grooves 20, the positions of the feed inlet 16 and the discharge outlet 17 cannot deflect, the baffle 18 is driven to slide in the storage groove 14 in the sliding process of the sleeve 15, and the available volume of the storage tank 14 is adjusted, in the rotating process of the rotating shaft 13 driven by the motor 26, after the storage tank 14 on the rotating shaft 13 rotates below the discharge tank 12, fertilizer in the fertilizer bin 11 falls into the storage tank 14 through the discharge tank 12 and the feed inlet 16 on the sleeve 15, according to the adjustment of the position of the baffle 18 by the sleeve 15, the fertilizer storage amount in the storage tank 14 can be adjusted according to the actual demand, in the rotating process of the rotating shaft 13, the baffle 18 is driven to synchronously rotate, the actual volume of the storage tank 14 cannot be influenced by the rotation of the rotating shaft 13, and after the storage tank 14 rotates to the lower part and the discharge port 17 on the sleeve 15 are aligned, the fertilizer in the storage tank 14 moves downwards due to gravity and enters the collecting hopper 37 through the discharge port 17.
The lower end of each collecting hopper 37 is communicated with a discharge bin 38, the lower end of each discharge bin 38 is provided with a discharge groove 40, a rotary table 43 connected with a rotary shaft 13 is rotatably installed in each discharge bin 38, a plurality of partition plates 44 are fixedly installed on each rotary table 43, the partition plates 44 are circumferentially distributed, a feeding bin 39 for prolonging the feeding time between the adjacent partition plates 44 is arranged at the communication position of each discharge bin 38 and the collecting hopper 37, a pushing rod 41 is rotatably installed at the communication position of each feeding bin 39 and the collecting hopper 37, a guide rod 25 is fixedly installed at one end of the rotary shaft 13, one end of the guide rod 25 is fixedly connected with the output end of a motor 26, a conical wheel 30 is transversely and slidably installed on the guide rod 25, one end of the conical wheel 30 is rotatably connected with one end of a sleeve 15, a rotary rod 42 connected with the rotary shaft 13 is rotatably installed on the fertilizer bin 11, a driving wheel 31 is fixedly installed on one end of each rotary table 43, a driving belt 32 is installed between the rotary rod 31 and the conical wheel 30, the length of the conical wheel 30 is the same as that of a storage bin 14, a driving seat 36 is fixedly installed on the rotary rod 11, two elastic rods 33 are fixedly installed on the four sides of the driving seats 33 are respectively, four elastic rods 35 are fixedly installed on the four sides of the four elastic rods 36 are respectively, and four elastic rods are respectively installed in the four sides of the four elastic rods 32 are fixedly installed in the state; the fertilizer gradually enters the discharging bin 38 under the action of gravity after entering the collecting hopper 37, when the motor 26 works, the rotating shaft 13 is driven to rotate by the guide rod 25, the conical wheel 30 is driven to synchronously rotate by the rotation of the guide rod 25, and as the conical wheel 30 is rotatably arranged on the sleeve 15, the sleeve 15 drives the baffle 18 to adjust the volume of the storing bin 14, will also drive the cone pulley 30 to slide synchronously; since the length of the cone pulley 30 is the same as the length of the reservoir 14, the larger the actual volume of the reservoir 14, the larger the diameter of the cone pulley 30 will be, the more the belt 32 will fit; the smaller the actual volume of the reservoir 14, the smaller the diameter of the belt 32 and cone pulley 30 will fit; by limiting the driving belt 32 by the roller 36 in the limiting piece 35, the driving belt 32 always keeps a vertical driving state, the upper end of the driving belt 32 does not move along with the conical wheel 30, the roller 36 does not influence the driving of the driving belt 32, as the elastic rod 34 always keeps a compressed state, the two limiting pieces 35 are always pushed to move oppositely, the driving belt 32 keeps a tensioning state to continuously drive, the conical wheel 30 drives the driving wheel 31 and the rotating rod 42 to rotate, the rotating rod 42 drives the rotating disc 43 to rotate, the fertilizer in the collecting hopper 37 falls between two adjacent partition plates 44 on the rotating disc 43, and along with the rotation of the rotating disc 43, the fertilizer between the two adjacent partition plates 44 is conveyed to the bottom of the discharging bin 38, and is thrown out from the discharging bin 40 at the bottom of the discharging bin 38 into a ditch where the coulter 7 is arranged in soil to scatter the fertilizer into the soil with different depths, when the required fertilizer amount is more, the rotating knob 24 drives the baffle 18 to expand the actual volume of the storage bin 14, the driving belt 32 is matched with the position with the conical wheel 30 with larger diameter, the rotating rod 42 drives the rotating speed of the rotating disc 43 to rotate, the fertilizer 43 to throw out the fertilizer between the two adjacent partition plates 44, the fertilizer can fall into the soil with the same time when the fertilizer amount is more than the fertilizer amount is thrown out of the fertilizer amount in the fertilizer bin 38, and the fertilizer amount is reduced when the fertilizer amount is required to be thrown into the fertilizer amount by the fertilizer amount to be more in the fertilizer by the fertilizer bin 41 when the fertilizer amount is more than the fertilizer amount is required by the fertilizer amount and the fertilizer amount is discharged by the fertilizer and the fertilizer amount and the fertilizer is simultaneously, and the fertilizer is discharged into the fertilizer and the fertilizer amount and the fertilizer is required by the fertilizer and the fertilizer is more and the fertilizer is discharged by the fertilizer and the fertilizer is required by the fertilizer and when the fertilizer is required and the fertilizer is more and the needed and the fertilizer is more and the needed and when the fertilizer and the fertilizer can and when the time and can and when and can and therefore and can and, when the rotating speed of the turntable 43 is increased, the situation that the fertilizer is not filled between two adjacent partition boards 44 possibly occurs, the feeding time between the two adjacent partition boards 44 is prolonged by the feeding bin 39, enough fertilizer is ensured to be discharged from the discharge groove 40 each time, the fertilizer can be directly thrown into the soil without being conveyed by a pipeline, the conventional equipment can fall into the soil only by conveying the fertilizer through the pipeline when the fertilizer is quantitatively thrown, the fertilizer can collide with the inner wall of the pipeline in the pipeline, the movement track of the fertilizer is changed, the conveying time of the fertilizer is prolonged, the time of different fertilizer particles passing through the pipeline is different, the situation that the fertilizer is easy to throw unevenly occurs is caused, and the equipment directly throws the fertilizer, so that the quantity of the fertilizer thrown each time is enough and even.
The fertilizer bin 11) is rotationally provided with a stirring shaft 28, one end of the stirring shaft 28 is fixedly provided with a gear 27, the guide rod 25 is rotationally provided with the gear 27, the two gears 27 are meshed with each other, the stirring shaft 28 is fixedly provided with a plurality of spiral strips 29 for pushing fertilizer to the discharge chute 12, the motor 26 works to drive the guide rod 25 and the gear 27 to rotate, the stirring shaft 28 is driven to rotate through the meshing of the two gears 27, the spiral strips 29 push fertilizer on two sides of the discharge chute 12 to the discharge chute 12 in the rotation process of the stirring shaft 28, so that enough fertilizer is always arranged in the discharge chute 12, a plurality of flat soil spades 45 are fixedly arranged on one side of the fertilizer bin 11, the flat soil spades 45 are in one-to-one correspondence with the discharge bin 38, each flat soil spade 45 is in V-shaped arrangement, the flat soil spades 45 backfill soil generated by ditching of the plow blade 7, fertilizer is covered, fertilizer volatilization is reduced, fertilizer is fully absorbed by the soil, and soil fertility is improved.
Specifically, firstly, the screw 9 is rotated, the screw 9 drives the connecting rod 6, the first slide rod 5 and the second slide rod 46 to synchronously move up and down on the bracket 4, the first slide rod 5 drives the coulter 7 to lift, the height of the coulter 7 is adjusted, ditches with different depths are conveniently carried out on different soils, then the rotary knob 24 drives the telescopic rod 23 and the thread disc 21 to synchronously rotate, the telescopic rod 23 stretches and contracts through the cooperation of the thread disc 21 and the thread groove 22, meanwhile, the thread disc 21 drives the sleeve 15 to slide in the fertilizer bin 11, the limiting strip 19 is limited through the guide groove 20, the sleeve 15 transversely slides in the fertilizer bin 11 without rotating, the positions of the feed inlet 16 and the discharge outlet 17 cannot deflect, the baffle 18 is driven to slide in the storage groove 14 in the sliding process of the sleeve 15, the available volume of the storage groove 14 is adjusted, the engine 2 is started to drive the two travelling wheels 3 to rotate, the machine frame 1 is driven to move, meanwhile, a person holds the moving direction of the machine frame 1, and starts a motor 26, in the process that the motor 26 drives a rotating shaft 13 to rotate, when a storage tank 14 on the rotating shaft 13 rotates to the lower part of a discharge chute 12, fertilizer in a fertilizer bin 11 falls into the storage tank 14 through a discharge chute 12 and a feed inlet 16 on a sleeve 15, according to the adjustment of the position of a baffle 18 by the sleeve 15, the fertilizer stored in the storage tank 14 can be adjusted according to actual requirements, when the storage tank 14 rotates to the lower part and is aligned with a discharge hole 17 on the sleeve 15, the fertilizer in the storage tank 14 moves downwards under the gravity and enters a collecting hopper 37 through the discharge hole 17, the fertilizer gradually enters a discharge bin 38 under the gravity action after entering the collecting hopper 37, when the motor 26 works, the rotating shaft 13 is driven to rotate through a guide rod 25, a conical wheel 30 is driven to synchronously rotate in the rotating process of the guide rod 25, the conical wheel 30 is rotatably mounted on the sleeve 15, when the sleeve 15 drives the baffle 18 to adjust the volume of the storage tank 14, the conical wheel 30 is driven to synchronously slide, because the length of the conical wheel 30 is the same as that of the storage tank 14, when the actual volume of the storage tank 14 is larger, the transmission belt 32 is matched with the position of the conical wheel 30 with larger diameter, when the actual volume of the storage tank 14 is smaller, the transmission belt 32 is matched with the position of the conical wheel 30 with smaller diameter, the transmission belt 32 is always kept in a vertical transmission state by limiting the transmission belt 32 through the limit of the roller 36 in the limiting piece 35, the upper end of the transmission belt 32 does not move along with the conical wheel 30, the transmission belt 30 drives the transmission wheel 31 and the rotary rod 42 to rotate through the transmission of the transmission belt 32, the rotary rod 42 drives the rotary disc 43 to rotate, fertilizer in the collecting hopper 37 falls between two adjacent partition plates 44 on the rotary disc 43, and along with the rotation of the rotary disc 43, the fertilizer between the two adjacent partition plates 44 is conveyed to the bottom of the discharging bin 38, and is thrown out of the discharging bin 40 at the bottom of the discharging bin 38 into a ditch 7 in soil; when the amount of fertilizer needed by crops is large, the rotary knob 24 drives the baffle 18 to expand the actual volume of the storage tank 14, the transmission belt 32 is matched with the position with larger diameter of the conical wheel 30, so that the rotary rod 42 drives the rotary table 43 to rotate faster, more fertilizer between two adjacent baffle plates 44 can be thrown out faster, more fertilizer can be scattered into the soil in the same time to meet the requirements of crops, when the amount of fertilizer needed by crops is small, the fertilizer scattered into the soil is reduced, and when the fertilizer falls into the discharge bin 38, part of fertilizer falls onto the pushing rod 41, the pushing rod 41 rotates to push the redundant fertilizer in the discharge bin 38 into the feeding bin 39, the feeding time between two adjacent baffles 44 is prolonged by the feeding bin 39, enough fertilizer is discharged from the discharge groove 40 each time, the motor 26 drives the guide rod 25 and the gear 27 to rotate during operation, the stirring shaft 28 is driven to rotate through the meshing of the two gears 27, the spiral strip 29 pushes the fertilizer on two sides of the discharge groove 12 to the discharge groove 12 in the rotation process of the stirring shaft 28, enough fertilizer is always reserved in the discharge groove 12, and finally the soil generated by ditching of the coulter 7 is backfilled by the flat shovel 45, the fertilizer is covered, the volatilization of the fertilizer is reduced, and the fertilizer is fully absorbed by the soil.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.