Testing device for verifying fertilizer efficiency

Abstract

A test device for verifying fertilizer efficiency comprises a planting basket, a liquid container and a base, the liquid container comprises a first basin, a second basin and a third basin, guide blocks are arranged on the outer walls of the first basin and the second basin, a second guide rail is arranged on the inner wall of the second basin, and a third guide rail is arranged on the inner wall of the third basin. The outer walls of the second basin and the first basin are in sliding connection through a second guide rail and a guide block on the outer wall of the first basin, and the outer walls of the third basin and the second basin are in sliding connection through a third guide rail and a guide block on the outer wall of the second basin, so that the second basin can slide outside the first basin, and the third basin can slide outside the second basin; the height of the liquid container can be adjusted, and it is guaranteed that rhizome plants of various lengths are planted. The liquid container is a brown transparent container, so that a shading effect can be achieved, and meanwhile, the growth condition of the root system can be conveniently observed. Scales are arranged around the outer wall of the container, so that the lengths of different treated roots can be observed and compared in real time. Scales are arranged on the inner wall of the field planting basket, and the proper depth can be selected according to the characteristics of seeds during fertilization and sowing.

Description

Technical Field

[0001] The utility model relates to the technical field of plant cultivation, in particular to an experimental device for verifying fertilizer efficiency. Background Art

[0002] The effects and optimal dosages of fertilizers can be quickly measured in a laboratory through hydroponic experiments or pot experiments. However, the existing pot experiments and hydroponic experiments have insurmountable defects in the verification process:

[0003] 1. Although traditional pot experiments can simulate the growth process in a natural environment, during the cultivation process, the roots of the potted crops will become root-bound and entangle at the bottom of the test container. One of the key points for comparing the growth trends of plants in pot experiments is the root system. On the one hand, traditional pot experiments cannot directly observe and measure the root length. On the other hand, the experimenters need to first wash the soil in the pot, smooth out the roots and then measure. This process is very likely to cause root damage and root breakage, especially the main roots and lateral roots at the bottom are severely damaged, resulting in a reduction in the number of roots, a large measurement workload, high difficulty, and large errors.

[0004] 2. In order to simulate the natural growth conditions of plants, traditional pot experiments generally use the soil in the 0-20 cm soil layer. This requires the staff to dig a large amount of surface soil from the field for pot experiments. This not only increases the workload, but also damages the surface soil of the farmland. At the same time, due to continuous planting of the surface soil, the content of nitrogen, phosphorus and potassium in the soil is sufficient or even surplus, which is likely to cause no obvious differences in the planted crops under different fertilization treatments even in the seedling stage or even in the middle and late growth stages, resulting in the failure of the experiment.

[0005] 3. In hydroponic experiments, the roots of plants grow in transparent containers and are exposed to sunlight. The roots of some plants are relatively fragile and cannot be exposed to sunlight for a long time, otherwise it is easy to inhibit the growth of the roots or damage the roots, affecting the growth of plants. Moreover, the crops grown by hydroponics are extremely prone to excessive growth due to lack of sunlight and relatively single nutritional conditions, and the stems are fragile and prone to lodging, which is not conducive to observing and comparing the growth differences between different treatments. Therefore, it is easy to cause difficulties in verifying the fertilizer efficacy of hydroponics and large errors. Content of the Utility Model

[0006] To solve the defects existing in the prior art, the utility model provides an experimental device for verifying fertilizer efficiency.

[0007] The technical solution adopted by the utility model is:

[0008] An experimental device for verifying fertilizer efficiency, comprising a planting basket, a liquid container and a base. The liquid container includes a first pot, a second pot and a third pot. Guide blocks are provided on the outer walls of the first pot and the second pot. A second guiding track is provided on the inner wall of the second pot, and a third guiding track is provided on the inner wall of the third pot. The outer wall of the second pot is slidably connected to the outer wall of the first pot through the second guiding track and the guide block on the outer wall of the first pot. The outer wall of the third pot is slidably connected to the outer wall of the second pot through the third guiding track and the guide block on the outer wall of the second pot, so that the second pot can slide outside the first pot and the third pot can slide outside the second pot. Grooves are provided at the bottoms of the inner walls of the second pot and the third pot, and anti-leak rubber rings are provided in the grooves. The anti-leak rubber ring in the second pot closely adheres to the outer wall of the first pot, and the anti-leak rubber ring in the third pot closely adheres to the outer wall of the second pot to prevent the water in the pot from flowing out. The second guiding track extends upward from above the anti-leak rubber ring at the bottom of the second pot to the top of the inner wall of the second pot, and the third guiding track extends upward from above the anti-leak rubber ring at the bottom of the third pot to a certain distance from the top of the inner wall of the third pot, so that the second pot and the third pot will not be disengaged upward or downward during sliding. The top of the third pot is connected to the planting basket. A water outlet pipe is provided on the side wall at the bottom of the first pot, and water can be discharged through the water outlet pipe to control the height of the water level. The bottom of the first pot is fixedly connected to the base, a fixing rod is provided on the base, and a fixing column is connected to the outer wall of the third pot. The end of the fixing rod is cooperatively connected with the fixing column.

[0009] Further, the whole liquid container is a brown transparent container, and only the scale lines are colorless and transparent, which can not only achieve the effect of shading, but also facilitate observing the growth of the root system. Scale lines with an accuracy of 1 mm are engraved on the outer wall of the liquid container, and the scale lines are colorless and transparent. The scale of the third pot is from 0 - 15 cm, the scale of the second pot is from 15 - 30 cm, and the scale of the first pot is 30 - 50 cm. The connection between the pots is the overlapping part of the scale lines, which is convenient for observing and recording the length of the root system.

[0010] Further, the outer wall of the planting basket has a structure that is wider at the top and narrower at the bottom, and the bottom of the planting basket is a porous mesh structure. The planting basket communicates with the liquid container through the porous mesh structure at the bottom. The planting basket is dark brown. Scale line marks are provided from 0 cm to 10 cm below the top end of the inner wall of the planting basket, and the appropriate depth can be selected according to the characteristics of the seeds during fertilization and sowing. The bottom end of the planting basket coincides with the 0 scale line on the outer wall of the liquid container.

[0011] Further, the water outlet pipe is a rubber pipe, and a glass ball is provided in the water outlet pipe. When drainage is required, kneading the glass ball can slowly drain the water, and the height of the water level can be accurately controlled.

[0012] Furthermore, a fixed rotating base is provided on the base, and the fixed rotating base is rotatably connected to a fixed rod, and the fixed rod is a telescopic rod. When it is necessary to change the height of the potted plant device, slide the positions of the third pot and the second pot, adjust the length of the fixed rod and rotate it around the fixed rotating base so that it cooperates with the fixed column on the third pot, thereby fixing the position of the third pot.

[0013] Furthermore, a rotating shaft is provided at the bottom of the base, and a support plate is rotatably connected to the rotating shaft. Pull out the support plate at the bottom of the first pot, so that the contact area between the first pot and the ground becomes larger, increasing the overall stability of the device.

[0014] Furthermore, at least three support rotating bases are provided on the outer wall of the third pot, and support rods are rotatably connected to the support rotating bases, and the support rods are all telescopic rods. During use, the length of the support rods can be adjusted to fix the device.

[0015] Furthermore, a handle is provided on the outer wall of the third pot, which is convenient for adjusting the height of the liquid container.

[0016] Furthermore, nutrient soil is provided in the planting basket, and the nutrient soil is coconut coir bricks. The coconut coir bricks can expand several times when exposed to water, and are quick and simple to soak and expand, which can effectively reduce the workload of digging a large amount of soil for potting in traditional potted plant experiments.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] 1. In the present utility model, there are scales on the inner wall of the planting basket, and the appropriate depth can be selected according to the characteristics of the seeds during fertilization and sowing. Fertilization and sowing are precise, standardized, and unified, which is convenient for comparing the differences between different treatments.

[0019] 2. The liquid container for observing the roots is made of brown transparent material, which can not only achieve the effect of shading, but also facilitate observing the growth of the root system. Shading can reduce the light in the root area, thereby reducing the growth of green algae or moss, promoting better development of the root system, forming a more developed root system, and helping the crop to better absorb water and nutrients.

[0020] 3. The height of the liquid container can be adjusted. Slide the positions of the third pot and the second pot, and fix them with a fixed rod. Moreover, the first pot, the second pot, and the third pot are connected, which can be used for planting various lengths of rhizome plants. The crop roots grow in the liquid container and are not easy to become root-bound. There are scales around the outer wall of the container, and the lengths of the roots of different treatments can be observed and compared in real time.

[0021] 4. In this utility model, coconut coir bricks are used as nutrient soil. After coming into contact with water, coconut coir bricks can expand several times, and they can be quickly and easily soaked and expanded. This can effectively reduce the workload of digging a large amount of soil for potting in traditional potting experiments. Moreover, coconut coir bricks are not easily decomposed, and after being washed, they can be reused, realizing the recycling of resources. At the same time, it can also effectively reduce the damage to the topsoil of farmland. The nutrient content of coconut coir bricks is extremely low and belongs to slowly decomposing organic matter. When using coconut coir bricks as nutrient soil for fertilizer efficiency experiments, it is easier to show the differences between different treatments, making the experimental results more accurate.

[0022] 5. The water outlet pipe is composed of a rubber tube and a glass ball. When drainage is required, kneading the glass ball can slowly drain the water, and the height of the water level can be precisely controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0024] Figure 1 is a schematic structural diagram of the present utility model;

[0025] Figure 2 is a front view of the present utility model;

[0026] Figure 3 is Figure 2 a schematic cross-sectional view taken along line A-A in

[0027] Figure 4 is Figure 3 a schematic enlarged view of the structure at B in

[0028] Figure 5 is Figure 3 a schematic enlarged view of the structure at C in

[0029] Figure 6 a schematic structural diagram of the liquid container part;

[0030] Figure 7 a schematic structural diagram of the third pot and the base;

[0031] Figure 8 is a rear view of the present utility model;

[0032] Figure 9 is a schematic structural diagram of the base.

[0033] In the figure: 1. Planting basket; 2. Liquid container; 201. First basin; 202. Second basin; 203. Third basin; 3. Base; 4. Water outlet pipe; 5. Guide block; 6. Second guiding track; 7. Third guiding track; 8. Groove; 9. Leak-proof rubber ring; 10. Fixed rod; 11. Fixed column; 12. Glass ball; 13. Fixed rotating seat; 14. Supporting rotating seat; 15. Support rod; 16. Rotating shaft; 17. Support plate; 18. Gripper. Detailed implementation manner

[0034] The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present utility model, and are not used to limit the present utility model.

[0035] An experimental device for verifying fertilizer efficiency includes a planting basket 1, a liquid container 2 and a base 3. The liquid container 2 includes a first basin 201, a second basin 202 and a third basin 203. Guide blocks 5 are provided on the outer walls of the first basin 201 and the second basin 202. A second guiding track 6 is provided on the inner wall of the second basin 202, and a third guiding track 7 is provided on the inner wall of the third basin 203. The outer wall of the second basin 202 is slidably connected to the outer wall of the first basin 201 through the second guiding track 6 and the guide block 5 on the outer wall of the first basin 201. The outer wall of the third basin 203 is slidably connected to the outer wall of the second basin 202 through the third guiding track 7 and the guide block 5 on the outer wall of the second basin 202, so that the second basin 202 can slide outside the first basin 201, and the third basin 203 can slide outside the second basin 202. Grooves 8 are provided at the bottoms of the inner walls of the second basin 202 and the third basin 203, and leak-proof rubber rings 9 are provided in the grooves 8. The leak-proof rubber ring 9 in the second basin 202 is in close contact with the outer wall of the first basin 201, and the leak-proof rubber ring 9 in the third basin 203 is in close contact with the outer wall of the second basin 202 to prevent the water in the basins from flowing out. The second guiding track 6 extends upward from above the leak-proof rubber ring 9 at the bottom of the second basin 202 to the top of the inner wall of the second basin 202, and the third guiding track 7 extends upward from above the leak-proof rubber ring 9 at the bottom of the third basin 203 to a certain distance from the top of the inner wall of the third basin 203, so that the second basin 202 and the third basin 203 will not be disengaged upward or downward during sliding, ensuring the connection between the first basin 201, the second basin 202 and the third basin 203. The top of the third basin 203 is connected to the planting basket 1. A water outlet pipe 4 is provided on the side wall at the bottom of the first basin 201, and water can be discharged through the water outlet pipe 4 to control the height of the water level. The bottom of the first basin 201 is fixedly connected to the base 3. A fixed rod 10 is provided on the base 3, and a fixed column 11 is connected to the outer wall of the third basin 203. The end of the fixed rod 10 is cooperatively connected with the fixed column 11.

[0036] Among them, the liquid container 2 is a brown transparent container as a whole, which can not only block light but also facilitate observing the growth of the root system. Blocking light can reduce the light in the root area, thereby reducing the growth of green algae or moss, promoting better development of the root system, forming a more developed root system, and helping the crop to better absorb water and nutrients. There are scale lines with an accuracy of 1 mm engraved on the outer wall of the liquid container 2, and the scale lines are colorless and transparent. The scale of the third pot 203 ranges from 0 - 15 cm, the scale of the second pot 202 ranges from 15 - 30 cm, and the scale of the first pot 201 ranges from 30 - 50 cm. The connection between the pots is the overlapping part of the scale lines, which is convenient for observing the length of the root system.

[0037] Among them, the outer wall of the planting basket 1 has a structure that is wider at the top and narrower at the bottom, and the bottom of the planting basket 1 is a porous mesh structure. The planting basket 1 communicates with the liquid container 2 through the porous mesh structure at the bottom. The planting basket 1 is dark brown. There is a scale mark set at 0 cm - 10 cm below the top end of the inner wall of the planting basket 1, and the appropriate depth can be selected according to the characteristics of the seeds during fertilization and sowing. The bottom end of the planting basket 1 coincides with the 0 scale line on the outer wall of the liquid container 2.

[0038] Among them, the water outlet pipe 4 is a rubber pipe, and a glass ball 12 is arranged inside the water outlet pipe 4. When drainage is required, kneading the glass ball 12 can slowly drain the water, and the height of the water level can be precisely controlled.

[0039] Among them, a fixed rotating seat 13 is arranged on the base 3, and the fixed rotating seat 13 is rotatably connected with the fixed rod 10. The fixed rod 10 is a telescopic rod. When the height of the potted plant device needs to be changed, slide the positions of the third pot 203 and the second pot 202, adjust the length of the fixed rod 10 and rotate it around the fixed rotating seat 13 to cooperate with the fixed column 11 on the third pot 203, so as to fix the position of the third pot 203.

[0040] Among them, a rotating shaft 16 is arranged at the bottom of the base 3, and a support plate 17 is rotatably connected to the rotating shaft 16. Since the second pot 202 slides outside the first pot 201 and the third pot 203 slides outside the second pot 202, as the sizes of the first pot 201, the second pot 202, and the third pot 203 gradually increase, the device presents a state of being larger at the top and smaller at the bottom, which may cause the overall instability of the device. At this time, pull out the support plate 17 at the bottom of the first pot 201 to increase the contact area between the first pot 201 and the ground, and improve the overall stability of the device.

[0041] Among them, a rotating seat is arranged on the base 3, at least three supporting rotating seats 14 are arranged on the outer wall of the third pot 203, a supporting rod 15 is rotatably connected to each of the supporting rotating seats 14, and the supporting rods 15 are all telescopic rods. Since the whole device is cylindrical and prone to tilting to the side, when in use, the length of the supporting rod 15 can be adjusted to fix the device, increasing the overall stability of the device.

[0042] Among them, a gripper 18 is arranged on the outer wall of the third pot 203, which is convenient for adjusting the height of the liquid container 2.

[0043] Among them, nutrient soil is arranged in the planting basket 1, and the nutrient soil is coconut coir bricks. The coconut coir bricks can expand several times after encountering water, and are quick and simple to soak and expand. It can effectively reduce the workload of digging a large amount of soil for potting in traditional potted plant experiments. Moreover, the coconut coir bricks are not easy to rot and can be reused after being washed, realizing resource recycling. At the same time, it can effectively reduce the damage to the topsoil of farmland soil. The coconut coir bricks contain very little nutrient components and belong to slow-decomposing organic matter. When using coconut coir bricks as nutrient soil for fertilizer efficiency experiments, it is easier to show the differences between different treatments, making the experimental results more accurate.

[0044] The method steps of the fertilizer efficiency experiment in the present utility model are as follows:

[0045] 1. Soak the coconut coir bricks with water 5 times the weight of the coconut coir bricks for about 15 minutes. The coconut coir bricks used are high-temperature sterilized and desalted coconut coir bricks. When soaking, divide the coconut coir bricks into small pieces with tools to make the coconut coir bricks fully absorb water. Calculate the amount of coconut coir brick nutrient soil and the required fertilizer, and weigh them.

[0046] 2. Select seeds of the same size and plump grains and put them into a sterile Erlenmeyer flask, add 75% alcohol and soak for 5 minutes. Pour out the alcohol and rinse 3 times with sterile water, then soak with 2% sodium hypochlorite solution for 2 minutes, and rinse with sterile water multiple times until the sodium hypochlorite is rinsed clean. Subsequently, place the disinfected seeds on a glass petri dish with moist filter paper and germinate them in a constant temperature dark incubator at 28°C.

[0047] 3. Fill the planting basket 1 with coconut coir brick nutrient soil, gently compact the coconut coir brick nutrient soil by hand, and apply fertilizer after reaching a certain height. For example, when the height of the coconut coir brick nutrient soil reaches 6 cm in the planting basket 1, apply fertilizer. When applying the base fertilizer, it is evenly distributed in a circle around the central position. After diluting the top dressing according to the ratio, sprinkle it in a circle around the roots of the crops. Continue to cover the soil to 3 cm and then sow. Select seeds that are plump, healthy, of the same size and with a germination length of about 1-2 cm for sowing.

[0048] When sowing, place the seeds at the center of the planting basket 1. According to the sowing depth, the fertilization position should be spaced 3 cm from the sowing position. The sowing depth should be determined according to the characteristics of the seeds. Granular fertilizers can be placed in a circle around the center position. Powder fertilizers should be mixed evenly with the nutrient soil. Liquid fertilizers should be diluted and evenly poured into the nutrient soil.

[0049] The fertilizer includes a composition of one or more of compound fertilizers, slow / controlled-release fertilizers, water-soluble fertilizers, microbial inoculants, organic fertilizers, and biostimulants.

[0050] 4. After sowing, cover the soil to the scale line at the top of the planting basket 1 and water moderately to keep it slightly moist. Pull out the support plate 17 at the bottom of the first pot 201 to increase the contact area between the first pot 201 and the ground and enhance the overall stability of the device. Hold the gripper 18 on the third pot 203 with your hand, lift the third pot 203 upward, adjust the liquid container 2 to a height suitable for observing the crop. Then adjust the length of the fixing rod 10 to cooperate with the fixing column 11 on the third pot 203 to fix the height of the liquid container 2. Then adjust the length of the support rod 15 and rotate the support rod 15 so that the support rod 15 supports on the ground to ensure that the device will not tip over.

[0051] 5. After sowing, regularly observe the root growth. When the roots extend from the bottom of the planting basket 1, add water to the liquid container 2 until the water level in the container reaches the 0 scale line. Then, according to the root growth situation, slowly drain the water by kneading the glass ball 12 in the bottom water outlet to ensure that the root tip of each root of the crop is immersed in the water by 1 - 2 cm. Observe the growth status of the above-ground part of the plants in the planting basket 1 every 2 - 3 days and take pictures for record, and record the root length according to the scale on the liquid container 2. After the cultivation is completed, take out the crop plants, rinse the roots of the plants with tap water, then rinse with distilled water, dry with absorbent paper, and measure indicators such as plant height, stem diameter, root length, above-ground fresh weight, and underground fresh weight.

[0052] In the description of the present utility model, it should be noted that unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0053] Although the content of the present utility model has been described in detail through the above preferred embodiments, it should be recognized that the above description should not be construed as a limitation of the present utility model. After those skilled in the art have read the above content, various modifications and substitutions to the present utility model will be obvious. Therefore, the protection scope of the present utility model should be defined by the appended claims.

Claims

1. A test device for verifying fertilizer efficiency, characterized in that: The invention comprises a planting basket (1), a liquid container (2) and a base (3); the liquid container (2) comprises a first basin (201), a second basin (202) and a third basin (203); guide blocks (5) are arranged on the outer walls of the first basin (201) and the second basin (202); a second guide track (6) is arranged on the inner wall of the second basin (202); a third guide track (7) is arranged on the inner wall of the third basin (203); the second basin (202) and the outer wall of the first basin (201) are slidably connected via the second guide track (6) and the guide blocks (5) on the outer wall of the first basin (201); the third basin (203) and the outer wall of the second basin (202) are slidably connected via the third guide track (7) and the guide blocks (5) on the outer wall of the second basin (202); the second basin (202) and the third basin (203) are slidably connected via the third guide track (7) and the guide blocks (5) on the outer wall of the second basin (202); 03) are provided with a groove (8) at the bottom of the inner wall, and a leak-proof rubber ring (9) is provided in each of the grooves (8); the second guide track (6) extends upward from the upper side of the leak-proof rubber ring (9) at the bottom of the second basin (202) to the top of the inner wall of the second basin (202); the third guide track (7) extends upward from the upper side of the leak-proof rubber ring (9) at the bottom of the third basin (203) to a certain distance from the top of the inner wall of the third basin (203); the top of the third basin (203) is connected to the planting basket (1); the bottom side wall of the first basin (201) is provided with a water outlet pipe (4); the bottom of the first basin (201) is fixedly connected with a base (3), and the base (3) is provided with a fixing rod (10); the outer wall of the third basin (203) is connected with a fixing column (11), and the end of the fixing rod (10) is matched and connected with the fixing column (11).

2. A test device for verifying fertilizer efficiency according to claim 1, characterized in that: The liquid container (2) is a brown transparent container as a whole. The outer wall of the liquid container (2) is engraved with scale lines with an accuracy of 1 mm. The scale lines are colorless and transparent. The scale of the third basin (203) is from 0 to 15 cm, the scale of the second basin (202) is from 15 to 30 cm, and the scale of the first basin (201) is from 30 to 50 cm. The connection between the basins is where the scale lines overlap.

3. A test device for verifying fertilizer efficiency according to claim 1, characterized in that: The outer wall of the planting basket (1) is a structure that is wide at the top and narrow at the bottom. The bottom of the planting basket (1) is a porous mesh structure. The planting basket (1) is dark brown in color. A scale mark is provided below the top of the inner wall of the planting basket (1) from 0 cm to 10 cm. The bottom of the planting basket (1) coincides with the 0 scale mark on the outer wall of the liquid container (2).

4. A test device for verifying fertilizer efficiency according to claim 1, characterized in that: The water outlet pipe (4) is a rubber pipe, and a glass ball (12) is arranged inside the water outlet pipe (4).

5. A test device for verifying fertilizer efficiency according to claim 1, characterized in that: The base (3) is provided with a fixed rotating seat (13), the fixed rotating seat (13) is rotatably connected to a fixed rod (10), and the fixed rod (10) is a telescopic rod.

6. A test device for verifying fertilizer efficiency according to claim 1, characterized in that: A rotating shaft (16) is provided at the bottom of the base (3), and a supporting plate (17) is rotatably connected to the rotating shaft (16).

7. A test device for verifying fertilizer efficiency according to claim 1, characterized in that: At least three supporting rotating seats (14) are arranged on the outer wall of the third basin (203), and the supporting rotating seats (14) are all rotatably connected to supporting rods (15), and the supporting rods (15) are all telescopic rods.

8. A test device for verifying fertilizer efficiency according to claim 1, characterized in that: A grip (18) is provided on the outer wall of the third basin (203).

9. A test device for verifying fertilizer efficiency according to claim 1, characterized in that: Nutrient soil is arranged in the planting basket (1), and the nutrient soil is coconut brick.

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