CN208227969U - Terraced fields automatic irrigation system - Google Patents

Abstract

An automatic irrigation system for terraced fields, comprising a sump arranged under the lowest level of terraced fields, irrigation devices, fertilization devices, and spraying devices arranged on terraces of all levels, and a water pump arranged beside the sump The water pipes are sent to the irrigation devices on the highest level of terraced fields, and the irrigation devices on all levels of terraced fields are connected in turn through water supply pipes, so that the water delivered to the irrigation devices on the highest level of terraced fields can be distributed to the irrigation devices on all levels of terraced fields. The device, the spraying device and the fertilizing device are respectively arranged on both sides of the irrigation device. The utility model can transport water to the roots of crops, reduce the evaporation of water, save water resources, the fertilization device can provide the nutrients needed for the growth of crops, and the spraying mechanism of the spraying device can move along the slide rail set on the bracket, Therefore, the spraying mechanism is moved along the long axis direction of the terrace, so that the pesticide can be evenly sprayed on the crops.

Description

Automatic irrigation system for terraced fields

technical field

The utility model relates to the technical field of agricultural irrigation, in particular to an automatic irrigation system for terraced fields.

Background technique

Terraced fields are a land use method that effectively utilizes mountainous areas to grow crops. It is very common in areas with uniform rainfall, but it is difficult to promote in mountainous areas with distinct dry and wet seasons. The cultivation of crops in terraced fields in plateau areas is too restricted by rainwater conditions, and rainy weather Part of the rainwater that falls irrigates the land, and a large part evaporates. Once there is no rain for a long time, the crops can only be killed by drought, which makes the harvest of the crops extremely unstable. In order to ensure the normal growth of the crops and obtain high and stable yields, the crops must be supplied with sufficient water.

Contents of the invention

In view of this, it is necessary to provide a terraced automatic irrigation system that can stably provide sufficient water for crops, save water resources, and perform irrigation, fertilization, and pesticide application at the same time.

An automatic irrigation system for terraced fields, comprising a sump arranged under the lowest level of terraced fields, irrigation devices, fertilization devices, and spraying devices arranged on terraces of all levels, and a water pump arranged beside the sump The water pipes are sent to the irrigation devices on the highest level of terraced fields, and the irrigation devices on each level of terraced fields are connected in turn through water supply pipes, so that the water delivered to the irrigation devices on the highest level of terraced fields can be distributed to the irrigation devices on all levels of terraced fields. The device, the spraying device and the fertilization device are respectively arranged on both sides of the irrigation device. The irrigation device includes a water storage tank, a main irrigation water pipeline, and at least two drip irrigation pipelines. It communicates with the bottom of the water storage tank, and at least two drip irrigation pipes communicate with the irrigation water main pipe to transport the water needed by the crops to the roots of the crops through at least two drip irrigation pipes. The mixing tank and the mixing mechanism installed in the mixing tank, the top of the mixing tank is connected with the water storage tank through the connecting pipe, and the bottom is connected with the main irrigation water pipe through the connecting pipe, the top of the mixing tank is equipped with a fertilizer adding port, and the fertilizer adding port is far away from the top of the mixing tank There is a movable ram under the bottom, and the mixing mechanism is used to stir the added fertilizer. After dissolving, it is transported to the drip irrigation pipeline through the irrigation water main pipeline, and penetrates into the root of the crop. The spraying device includes a dispensing tank, a bracket, a spraying mechanism, and The tank is located on one side of the water storage tank, the top communicates with the water storage tank, and the bottom communicates with the spraying mechanism through a hose. The slide rails on the terrace move along the long axis of the terrace so that the pesticide can be evenly sprayed on the crops.

Preferably, the spraying mechanism includes two electric sliders, a fixed rod, and a drug delivery tube, and the two electric sliders are oppositely arranged on the support, and can move along the long axis direction of the terrace. The two electric sliders are respectively There is a long strip-shaped through hole, and the fixed rod passes through the long strip-shaped through hole to connect with the two electric sliders. Anti-falling blocks are also fixed at both ends of the fixed rod to prevent the fixed rod from falling off from the two electric sliders. The drug delivery tube is fixedly arranged at the lower part of the fixed rod, and at least two atomizing nozzles are evenly distributed on the drug delivery tube to evenly disperse the pesticide.

Preferably, the two electric sliders are provided with at least two pin holes, at least two pin holes are located on both sides of the elongated through hole, and the anti-falling block is provided with corresponding pins on the two electric sliders. The pin shaft passes through the pin hole, connects the anti-falling block with the two electric sliders, inserts the anti-falling block and the pin holes on the two electric sliders by adjusting the pin shaft, to complete the adjustment of the height of the fixed rod and Relatively fixing the fixed rod and the two electric slide blocks.

Preferably, the mixing mechanism includes a driving motor, a crankshaft, a stirring blade, and a movable rod. One end of the crankshaft passes through the top of the mixing tank and is connected to the driving motor, and the other end is connected to the stirring blade. One end of the movable rod is movably connected to the crankshaft, and the other end is connected to the movable gate. The plate pins are connected, and the drive motor drives the crankshaft to rotate, so that the movable rod reciprocates, and then drives the movable gate, and the stirring blade connected to one end of the crankshaft also rotates at the same time, so that the fertilizer is stirred while falling.

Preferably, a grid is provided at the bottom of the mixing tank to block the added fertilizer particles and prevent the fertilizer particles from blocking the outlet at the bottom of the mixing tank.

Preferably, the water storage tank is provided with a liquid level gauge, and the liquid level gauge installed on the water storage tank on the highest terrace of the terrace is electrically connected to the water pump, and the liquid level gauge installed on the water storage tank on the remaining terraces is connected to the water pump. The solenoid valve arranged on the water supply pipe is electrically connected.

Preferably, four moisture sensors are distributed in the terraced fields at all levels, and the four moisture sensors are electrically connected to the solenoid valve provided on the irrigation water main pipeline.

The utility model adopts the above-mentioned technical scheme, and its beneficial effects are: the irrigation device of the utility model can provide the crops growing on the terraces with the water required by the crops, and the drip irrigation pipeline of the irrigation device can transport the water to the roots of the crops, reducing the evaporation of water , saving water resources, the fertilization device can provide the nutrients needed for the growth of the crops, the mixing mechanism of the fertilization device can accelerate the dissolution of the fertilizer added to the mixing tank, so as to prevent the fertilizer particles from dissolving slowly, blocking the outlet of the mixing tank, and the spraying device It can spray medicine in time to prevent crop diseases and insect pests. The spraying mechanism of the spraying device can move along the slide rail set on the bracket, so that the spraying mechanism can move along the long axis of the terrace to spray the pesticide evenly on the crops.

Description of drawings

Fig. 1 is the structural representation of the utility model.

FIG. 2 is a structural schematic diagram of another angle in FIG. 1 .

Fig. 3 is a partial structural schematic diagram of the utility model.

FIG. 4 is a structural schematic diagram of another angle of FIG. 3 .

FIG. 5 is a partially enlarged view of FIG. 4 .

Fig. 6 is a structural schematic diagram of the stirring tank of the present invention.

FIG. 7 is a cross-sectional view of FIG. 6 .

In the figure: sump 10, water pump 101, water pipe 102, irrigation device 20, water storage tank 201, irrigation water main pipeline 202, at least two drip irrigation pipelines 203, fertilization device 30, mixing tank 301, fertilizer adding port 3011, activities Gate 30111, water outlet 3012, mixing mechanism 302, driving motor 3021, crankshaft 3022, stirring blade 3023, movable rod 3024, spraying device 40, dispensing tank 401, bracket 402, spraying mechanism 403, two electric sliders 4031, Strip-shaped through hole 40311, fixed rod 4032, anti-falling block 40321, drug delivery tube 4033, atomizing nozzle 40331, water supply tube 50.

Detailed ways

Please refer to Fig. 1 to Fig. 7, the utility model embodiment provides a kind of automatic irrigation system for terraced fields, including the sump 10 arranged under the lowest level of terraced fields and the irrigation device 20, fertilization device 30, The spraying device 40 and the sump 10 are used to collect rainwater. When the water yield in the sump 10 is not enough, the water needed for other irrigation can also be replenished in the sump 10. The water pump 101 provided on the sump 10 limits the sump 10 The water in the terrace is transported to the irrigation device 20 on the highest terraced field through the water delivery pipe 102, and the irrigation devices 20 on the terraced fields at all levels are connected in turn through the water supply pipe 50, so that the water in the irrigation device 20 delivered to the highest terraced field Water can be distributed to the irrigation device 20 on the terraced fields at all levels. The spraying device 40 and the fertilization device 30 are respectively arranged on both sides of the irrigation device 20. The irrigation device 20 includes a water storage tank 201, an irrigation water main pipeline 202, at least two Drip irrigation pipeline 203, water storage tank 201 is arranged on one side of the terraced field ridge, irrigation water main pipeline 202 communicates with the bottom of water storage tank 201, at least two drip irrigation pipelines 203 communicate with irrigation water main pipeline 202, in order to pass the water needed by crops At least two drip irrigation pipelines 203 are delivered to the roots of the crops. The fertilization device 30 includes a mixing tank 301 arranged on one side of the water storage tank 201 and a mixing mechanism 302 arranged in the mixing tank 301. The top of the mixing tank 301 is connected to the storage tank through a connecting pipe. The water tank 201 is communicated, and the bottom is communicated with the irrigation water main pipeline 202 through a connecting pipe. The top of the mixing tank 301 is provided with a fertilizer adding port 3011. Stir the fertilizer added, after dissolving, transport it to the drip irrigation pipeline through the irrigation water main pipeline 202, and penetrate into the roots of the crops. The spraying device 40 includes a dispensing tank 401, a bracket 402, and a spraying mechanism 403. On one side, the top communicates with the water storage tank 201, and the bottom communicates with the spraying mechanism 403 through a hose. The slide rail on the support 402 moves along the long axis direction of the terraced field, so that the pesticide can be evenly sprayed on the crops.

The water pump 101 provided on the side of the sump 10 transports the water in the sump 10 to the water storage tank 201 of the irrigation device 20 on the highest level of terraced fields through the water delivery pipe 102, and the water storage tanks 201 on the terraced fields at all levels pass through the water supply pipe 50 Connected in sequence, so that the water transported to the water storage tank 201 on the highest level of terraced fields can be distributed to all levels of terraced fields, the main irrigation water pipeline 202 communicates with the bottom of the water storage tank 201, and at least two drip irrigation pipelines 203 are connected to the main irrigation water pipeline. 202 is connected, and the water needed by the crops can be transported to the roots of the crops through at least two drip irrigation pipes 203, which can make the crops absorb the required water more efficiently, reduce the evaporation of water, and save water resources; the mixing tank 301 of the fertilization device 30 The fertilizer needed by crops can be added, and the mixing mechanism 302 can accelerate the dissolution of the fertilizer added to the mixing tank 301, thereby preventing the fertilizer particles from dissolving slowly and blocking the water outlet 3012 of the mixing tank 301, while the mixing tank 301 and the irrigation water main pipeline 202 are connected The fertilizer water is transported to the roots of the crops through at least two drip irrigation pipes 203 to provide the nutrients needed for the growth of the crops; the spraying mechanism 403 of the spraying device 40 can move along the slide rails set on the bracket 402, so that the spraying mechanism 403 can move along the length of the terraced field. The axis moves so that the pesticide can be evenly sprayed on the crops to prevent crop diseases and insect pests.

Further, the spraying mechanism 403 includes two electric sliders 4031, a fixed rod 4032, and a drug delivery tube 4033. The two electric sliders 4031 are oppositely arranged on the support 402 and can move along the long axis of the terrace. Each electric slider 4031 is respectively provided with a strip-shaped through hole 40311, and the fixed rod 4032 passes through the strip-shaped through hole 40311 to connect with the two electric sliders 4031, and the two ends of the fixed rod 4032 are also fixed with anti-falling blocks 40321 , to prevent the fixed rod 4032 from falling off from the two electric sliders 4031, the drug delivery tube 4033 is fixedly arranged on the lower part of the fixed rod 4032, and at least two atomizing nozzles 40331 are evenly distributed on the drug delivery tube 4033 to uniformly distribute the pesticide spread out.

Further, the two electric sliders 4031 are provided with at least two pin holes, and at least two pin holes are located on both sides of the elongated through hole 40311, and the anti-falling block 40321 is provided with the two electric sliders 4031. Corresponding pin hole, the pin shaft passes through the pin hole, and the anti-falling block 40321 is connected with the two electric sliders 4031, and is inserted into the pin hole on the anti-falling block 40321 and the two electric sliders 4031 by adjusting the pin shaft, so as to The adjustment of the height of the fixed rod 4032 and the relative fixing of the fixed rod 4032 and the two electric sliders 4031 are completed.

Two oppositely arranged electric sliders on the bracket 402 drive the fixed rod 4032 and the drug delivery tube 4033 fixedly arranged at the lower part of the fixed bar 4032 to move along the long axis direction of the terrace. The spray nozzle 40331 spreads the pesticide evenly, which can quickly and efficiently spray the crops in the terraced fields, which improves the spraying efficiency and reduces labor consumption; the two electric sliders 4031 and the anti-falling block 40321 are equipped with There are corresponding pin holes, and the pin shaft passes through the pin holes to connect the anti-falling block 40321 with the two electric sliders 4031, and insert the anti-falling block 40321 and the pin holes on the two electric sliders 4031 by adjusting the pin shaft. To complete the adjustment of the height of the fixed rod 4032, since different crops have different growth heights, and the heights in different growth cycles are also different, by adjusting the height of the fixed rod 4032, the crops can be sprayed according to the height of the crops, so that the spraying The drug is more uniform on the crop.

Please refer to Fig. 6 and Fig. 7, further, the mixing mechanism 302 includes a driving motor 3021, a crankshaft 3022, a stirring blade 3023, and a movable rod 3024. One end of the crankshaft 3022 passes through the top of the mixing tank 301 and is connected to the driving motor 3021, and the other end is connected to Stirring blade 3023, one end of movable rod 3024 is movably connected with crankshaft 3022, and the other end is pin-connected with movable gate 30111, and driving motor 3021 drives crankshaft 3022 to rotate, so that movable rod 3024 reciprocates, and then drives movable gate 30111, and one end of crankshaft 3022 is connected The mixing blade 3023 of the mixer also rotates at the same time, so that the fertilizer is stirred while falling.

The drive motor 3021 drives the crankshaft 3022 to rotate, drives the movable rod 3024 to reciprocate, and the movable rod 3024 further drives the movable gate 30111 to reciprocate, and the fertilizer intermittently falls into the mixing tank 301 from the fertilizer adding port 3011, and at the same time, the crankshaft 3022 is connected to the stirring tank at one end. The blades 3023 also rotate at the same time, so that the fertilizer is stirred while falling, so that the fertilizer is rapidly dissolved in the mixing tank 301, effectively improving the dissolution rate of the fertilizer, and preventing fertilizer from accumulating at the water outlet 3012 at the bottom of the mixing tank 301, which affects the water outlet efficiency. The working method when replenishing water is to transport the water containing dissolved fertilizer to the drip irrigation pipeline through the irrigation water main pipeline 202 connected to the bottom of the mixing tank 301, and penetrate around the roots of the crops, reducing the loss of fertilizer nutrients and improving the crop’s response to fertilizer nutrients. absorption efficiency.

Further, the bottom of the mixing tank 301 is provided with a grid, which is used to block the added fertilizer particles and prevent the fertilizer particles from blocking the outlet at the bottom of the mixing tank 301 .

Further, the water storage tank 201 is provided with a liquid level gauge, and the liquid level gauge installed on the water storage tank 201 on the highest terrace of the terrace is electrically connected to the water pump 101, and the water storage tank 201 on the remaining terraces is installed The liquid level gauge is electrically connected with the solenoid valve provided on the water supply pipe 50 .

The liquid level gauge installed on the water storage tank 201 on the highest terraced field transmits the liquid level signal to the control module, and the control module receives the liquid level signal and transmits the start or stop signal to the water pump 101. When the liquid level of the water storage tank 201 on the upper terrace is low, the water pump 101 is turned on to replenish water; The installed liquid level gauge feeds back the liquid level signal to the control module, and the control module receives the liquid level signal, and feeds back the open or close signal to the solenoid valve on the water supply pipe 50. When the liquid level of one of the water storage tanks 201 is low, The electromagnetic valve on the water supply pipe 50 is opened, and the water storage tank 201 in the terraced fields of the upper level begins to replenish water for the water storage tank 201 in the next level of terraced fields. When the liquid level of the water storage tank 201 is high, the water storage tank 201 on the water supply pipe 50 Solenoid valve closes, stop replenishing water for the water storage tank 201 that is short of water, according to this mode, upper level water storage tank 201 utilizes the gravity of water to replenish water for lower level water storage tank 201, has reduced energy consumption.

Further, there are four moisture sensors distributed in the terraced fields at all levels, and the four moisture sensors are electrically connected to the solenoid valve provided on the irrigation water main pipeline 202 .

There are four moisture sensors distributed in the terraces at all levels. Multi-point detection can more accurately judge the moisture content in the terraces. The moisture sensor transmits the moisture content signal to the control module, and the control module feeds back the open or close signal to the solenoid valve. When water is short, the electromagnetic valve on the main irrigation water pipeline 202 is opened to start watering the crops. When the roots of the crops reach a certain water content, the electromagnetic valve on the main irrigation water pipeline 202 is closed to stop water replenishment for the crops. According to this method, It can fully and stably provide crops with the water needed for irrigation, reduces water evaporation, and improves the utilization rate of water resources.

A mode of operation of the present utility model is as follows: during work, the water pump 101 that pool 10 sides is provided with water in the sump 10 is transported to the water storage tank 201 of the irrigation device 20 on the highest terraced field through the water delivery pipe 102, irrigation The water main pipeline 202 communicates with the bottom of the water storage tank 201, and at least two drip irrigation pipelines 203 communicate with the irrigation water main pipeline 202, which can transport the water needed by the crops to the roots of the crops through at least two drip irrigation pipelines 203. , the electromagnetic valve on the main irrigation water pipeline 202 is opened to start watering the crops. When the roots of the crops reach a certain water content, the electromagnetic valve on the main irrigation water pipeline 202 is closed to stop water replenishment for the crops, which can make the crops more efficient. Absorb the required water, reduce the evaporation of water, and save water resources; when the liquid level of the water storage tank 201 on the highest level of terraced fields is low, the water pump 101 is turned on to replenish water. When the liquid level of the water tank 201 was high, the water pump 101 stopped replenishing water, and when the liquid level of a water storage tank 201 in the terraced fields of each level was low, the electromagnetic valve on the water supply pipe 50 was opened, and the water storage tank 201 in the terraced fields of the upper level Begin to replenish water for the water storage tank 201 in the next level of terraced fields. When the liquid level of the water storage tank 201 is high, the electromagnetic valve on the water replenishment pipe 50 is closed, and stops replenishing water for the water storage tank 201 that is short of water, and proceeds from top to bottom in turn. Next, the water storage tank 201 in the upper level of terraces supplies water for the water storage tank 201 in the lower level of terraces. In this way, the upper level of water storage tank 201 uses the gravity of water to replenish water for the lower level of water storage tank 201 , reducing energy consumption;

When it is necessary to fertilize the crops, add the fertilizer needed by the crops into the mixing tank 301, the drive motor 3021 drives the crankshaft 3022 to rotate, drives the movable rod 3024 to reciprocate, and the movable rod 3024 drives the movable gate 30111 to reciprocate, and the fertilizer is intermittently Fall into the mixing tank 301 from the fertilizer adding port 3011, and at the same time, the mixing blade 3023 connected to one end of the crankshaft 3022 also rotates at the same time, so that the fertilizer is stirred while falling, so that the fertilizer is quickly dissolved in the mixing tank 301, and the dissolution rate of the fertilizer is effectively improved. To prevent fertilizers from accumulating at the water outlet 3012 at the bottom of the mixing tank 301, which will affect the water outlet efficiency, refer to the working method when replenishing water for crops, and transport the water containing dissolved fertilizers to the drip irrigation pipeline through the irrigation water main pipeline 202 connected to the bottom of the mixing tank 301, and Penetrates around the roots of crops, reducing the loss of fertilizer nutrients and improving the absorption efficiency of fertilizer nutrients by crops;

When the crops need to apply pesticides, two oppositely arranged electric sliders on the bracket 402 drive the fixed rod 4032 and the drug delivery tube 4033 fixedly arranged at the bottom of the fixed rod 4032 to move along the long axis direction of the terrace. The evenly distributed atomizing nozzles 40331 on the pipe 4033 spread the pesticides evenly, which can quickly and efficiently spray the crops in the terraced fields, improve the efficiency of pesticide application, and reduce labor consumption; two electric sliders 4031 1. There are corresponding pin holes on the anti-falling block 40321, and the pin shaft passes through the pin holes to connect the anti-falling block 40321 with the two electric sliders 4031, and insert the anti-falling block 40321 and the two electric sliders by adjusting the pin shafts. In the pin hole on the block 4031, to complete the adjustment of the height of the fixed rod 4032, because the growth heights of different crops are different, and the heights in different growth cycles are also different, by adjusting the height of the fixed rod 4032, the height of the crop can be adjusted Spray the crops to make the medicine sprayed on the crops more uniform and prevent crop diseases and insect pests.

In addition, the utility model can simultaneously perform crop irrigation, fertilization, and pesticide application without mutual influence, and the required electric energy is supplied by solar power generation.

What is disclosed above is only a preferred embodiment of the utility model, and of course it cannot be used to limit the scope of rights of the utility model. Those of ordinary skill in the art can understand all or part of the process of realizing the above-mentioned embodiments, and according to the utility model The equivalent changes made by the claims still belong to the scope covered by the utility model.

Claims (7)

1. An automatic irrigation system for terraced fields is characterized in that: it comprises a sump arranged below the lowest level of terraced fields and an irrigation device, a fertilizing device, and a spraying device arranged on terraced fields of all levels, and the water pump arranged at the side of the sump will collect The water in the pool is transported to the irrigation device on the highest level of terraced fields through the water pipe, and the irrigation devices on the terraced fields at all levels are connected in turn through the water supply pipe, so that the water transported to the irrigation device on the highest level of terraced field can be distributed to The irrigation devices on the terraced fields at all levels, the spraying device and the fertilization device are respectively arranged on both sides of the irrigation device. The irrigation device includes a water storage tank, a main irrigation water pipeline, and at least two drip irrigation pipelines. On the side, the irrigation water main pipeline communicates with the bottom of the water storage tank, and at least two drip irrigation pipelines communicate with the irrigation water main pipeline, so as to transport the water needed by the crops to the drip irrigation pipeline through at least two drip irrigation pipelines, and penetrate into the roots of the crops. The fertilization device includes a mixing tank arranged on one side of the water storage tank and a mixing mechanism arranged in the mixing tank. The top of the mixing tank is connected to the water storage tank through a connecting pipe, and the bottom is connected to the irrigation water main pipeline through a connecting pipe. The fertilizer adding port is set, the fertilizer adding port is far away from the top of the mixing tank, and a movable gate is arranged below, and the mixing mechanism is used to stir the added fertilizer, which is transported to the root of the crop through the irrigation water main pipeline after dissolving, and the spraying device includes a dispensing tank, Bracket, spraying mechanism, the dispensing tank is located on one side of the water storage tank, the top is connected to the water storage tank, and the bottom is connected to the spraying mechanism through a hose. on the support, and move along the long axis of the terrace through the slide rails on the support, so as to spray the pesticide evenly on the crops. 2. The automatic irrigation system for terraced fields according to claim 1, characterized in that: the spraying mechanism includes two electric sliders, a fixed rod, and a drug delivery tube, and the two electric sliders are oppositely arranged on the support, and can Moving along the long axis of the terrace, two electric sliders are respectively provided with a strip-shaped through hole, and the fixed rod passes through the strip-shaped through hole to connect with the two electric sliders. The shedding block is used to prevent the fixed rod from falling off from the two electric sliders. The drug delivery tube is fixedly arranged at the lower part of the fixed rod. At least two atomizing nozzles are evenly distributed on the drug delivery tube to spread the pesticide evenly. . 3. The automatic irrigation system for terraced fields according to claim 2, characterized in that: the two electric sliders are provided with at least two pin holes, and at least two pin holes are located on both sides of the strip-shaped through hole to prevent falling off There are pin holes corresponding to the two electric sliders on the block, and the pin shaft passes through the pin hole to connect the anti-falling block with the two electric sliders, and insert the anti-falling block and the two electric sliders by adjusting the pin shaft. In the pin hole on the top, to complete the adjustment of the height of the fixed rod and the relative fixation of the fixed rod and the two electric sliders. 4. The automatic irrigation system for terraced fields according to claim 1, characterized in that: the mixing mechanism includes a driving motor, a crankshaft, a stirring blade, and a movable rod, one end of the crankshaft passes through the top of the mixing tank and is connected to the driving motor, and the other end is connected to the stirring tank. Blades, one end of the movable rod is movably connected with the crankshaft, and the other end is pin-connected with the movable ram. The drive motor drives the crankshaft to make the movable rod reciprocate, and then drives the movable ram, and the stirring blade connected to one end of the crankshaft also rotates at the same time, so that the Drop, while stirring. 5. The automatic irrigation system for terraced fields according to claim 4, characterized in that: the bottom of the mixing tank is provided with a grid to block the added fertilizer particles and prevent the fertilizer particles from blocking the outlet at the bottom of the mixing tank. 6. The automatic irrigation system for terraced fields according to claim 1, characterized in that: said water storage tank is provided with a liquid level gauge, and the liquid level gauge installed on the water storage tank on the highest level of terraced fields is electrically connected to the water pump. The liquid level gauge installed in the water storage tank on the remaining terraces is electrically connected with the solenoid valve arranged on the water supply pipe. 7. The automatic irrigation system for terraced fields according to claim 1, characterized in that four moisture sensors are distributed in the terraced fields at all levels, and the four moisture sensors are electrically connected to solenoid valves arranged on the irrigation water main pipeline.