Testing device convenient for observing soil loosening effect of fertilizer

Abstract

The utility model relates to a test device convenient for observing the soil loosening effect of a fertilizer. Comprising at least one cylinder used for containing fertilizer and soil and a detachable funnel screen piece matched with an opening in the top of the cylinder. The detachable upper barrel cover is matched with the opening in the top of the barrel body; the cylinder body is made of a transparent material, and scales convenient for observation are arranged on the outer surface of the transparent cylinder body; the device has the advantages that the change of a flocculation aggregate structure in the soil falling process can be directly observed, meanwhile, the soil porosity can be analyzed by observing the height of a soil column, and the device is reasonable in design, easy to clean and convenient to carry.

Description

Technical Field

[0001] The utility model relates to the technical field of soil loosening test observation, in particular to a test device which is convenient for observing the soil loosening effect of fertilizer. Background Art

[0002] Soil is the foundation of crop growth and plays an irreplaceable role in crop growth, development, quality and sustainability of agricultural production. Good soil quality can improve crop yield and quality, improve the ecological environment, and ensure food security. However, due to the combined influence of various adverse factors, soil is currently facing a variety of quality problems, especially poor soil permeability and soil compaction. Compacted soil will make it difficult for water and nutrients to penetrate into the root growth area, and at the same time cause poor root respiration and high root growth resistance, which will affect the material transformation and energy exchange of the soil-plant system, and even cause some physiological activities and life metabolism to not proceed normally.

[0003] There are many fertilizers on the market that are sold as preventing soil compaction and improving soil permeability, but the quality of fertilizers from different manufacturers varies. The current method for testing the soil loosening effect of fertilizers is mainly to use the ring knife method, and the measurement steps are as follows: select the measurement site and first use a shovel to level the soil at the soil collection site. Place the ring knife support on a known mass (accurate to 0.01g), apply vaseline slightly on the inner wall of the ring knife, and press the edge of the ring knife vertically downward into the soil until the ring knife tube is filled with the pattern; use the soil to cut the soil sample around the ring, and wipe the soil outside the ring knife, and immediately cover it to prevent water evaporation; remove the top cover of the ring knife containing the soil sample, and then put it in an oven, dry it at 105℃±2℃ for 4 hours, and finally cool it in a dryer and weigh it to constant weight. The above process has the characteristics of cumbersome operation process, long time consumption, inability to quickly and intuitively identify the effect of fertilizers in loosening the soil, and the instrument used to dry the soil is large and not easy to carry. Utility Model Content

[0004] The utility model aims to provide a test device which is convenient for observing the soil loosening effect of fertilizer, so as to overcome the defects in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A test device for observing the soil loosening effect of fertilizer, the test device comprising:

[0007] At least one cylinder for holding fertilizer and soil,

[0008] A detachable funnel screen member adapted to the top opening of the cylinder;

[0009] and a detachable upper cylinder cover adapted to the top opening of the cylinder body;

[0010] The cylinder is made of a transparent material, and the outer surface of the transparent cylinder is provided with scales for easy observation.

[0011] The beneficial effects of the utility model are as follows: the utility model is based on a cylinder body, and is used in conjunction with a detachable funnel screen component and a detachable upper cylinder cover; the cylinder body made of a transparent material can facilitate the storage of fertilizer solution and directly observe the flocculation and aggregation of soil particles in the process of falling in the fertilizer solution; further, the final soil column height can be measured by coordinating with a scale, so as to achieve the characteristics of easy observation and recording; and the detachable funnel screen component can facilitate the smooth pouring of soil particles into the cylinder body, and at the same time screen the soil particles to avoid the uneven size of soil particles affecting the height of the soil column; by setting the detachable upper cylinder cover, the fertilizer solution and soil particles can be fully mixed after the soil is added to prevent leakage; so as to achieve the characteristics of easy operation, simple structure, reasonable design and easy carrying.

[0012] Preferably, the detachable funnel screen element is a funnel-shaped structure with a large diameter at the upper part and a small diameter at the lower part, and a filter screen for screening soil is arranged therein.

[0013] Preferably, the upper diameter of the detachable funnel screen component is larger than the diameter of the outer wall of the top of the cylinder, the lower diameter of the detachable funnel screen component is smaller than the diameter of the inner wall of the top of the cylinder, and the lower length of the detachable funnel screen component is 3 to 4 cm.

[0014] Preferably, the filter screen is arranged at the bottom of the detachable funnel screen element.

[0015] Preferably, the detachable upper cylinder cover is made of elastic material, and comprises a cover plate and a cylindrical protrusion arranged on the lower surface of the cover plate, and the cylindrical protrusion is adapted to the inner diameter of the cylinder.

[0016] Preferably, an annular groove matching the top end surface of the cylinder body is provided at the connection between the cover plate and the cylindrical protrusion.

[0017] Preferably, the diameter of the cover plate is larger than the diameter of the outer wall at the top of the cylinder, and the diameter of the cylindrical protrusion is equal to the diameter of the inner wall at the top of the cylinder.

[0018] Preferably, the cover plate and the cylindrical protrusion are an integral structure.

[0019] Preferably, the cylinder body is a cylindrical structure with upper and lower openings, and a detachable lower cylinder cover is provided at the bottom.

[0020] Preferably, the detachable lower cylinder cover and the detachable upper cylinder cover have the same structure.

[0021] According to the above scheme, a test device is made to facilitate observation of the effect of fertilizer loosening soil. The transparent cylinder can store fertilizer solution and directly observe the flocculation and aggregation of soil particles in the process of falling in the fertilizer solution. Furthermore, the final soil column height can be measured by cooperating with the scale to achieve the characteristics of easy observation and recording. By setting a detachable funnel screen, it is convenient to pour soil particles into the cylinder smoothly, and at the same time, the soil particles are screened to avoid the uneven size of soil particles affecting the height of the soil column. The utility model can facilitate the self-standing of the cylinder and achieve the purpose of easy cleaning by setting a detachable lower cylinder cover. It has the advantages of being able to directly observe the changes in the flocculation and aggregation structure of the soil during the falling process, and at the same time being able to analyze the size of the soil porosity by observing the height of the soil column, reasonable design, easy cleaning, and easy to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model.

[0023] Figure 2 This is another structural schematic diagram of the utility model.

[0024] Figure 3 It is a schematic diagram of the structure of the detachable funnel screen member of the utility model.

[0025] Figure 4 It is a schematic diagram of the structure of the detachable upper cylinder cover of the utility model.

[0026] Figure 5 for Figure 4 A partial enlarged view of part A in the middle.

[0027] In the figure: 1. cylinder body; 2. detachable funnel screen; 3. detachable upper cylinder cover; 4. scale; 5. filter screen; 6. cover plate; 7. cylindrical protrusion; 8. annular groove; 9. detachable lower cylinder cover. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0029] Reference Figure 1-5As shown, a test device for observing the soil loosening effect of fertilizers, the test device comprises: at least one cylinder 1 for containing fertilizers and soil, a detachable funnel screen member 2 adapted to the top opening of the cylinder 1; and a detachable upper cylinder cover 3 adapted to the top opening of the cylinder 1; the cylinder 1 is made of transparent material, and the outer surface of the transparent cylinder 1 is provided with a scale 4 for easy observation. The utility model changes the traditional measurement method, and is based on a cylinder 1 made of transparent material to observe the flocculation and aggregation of soil particles in the process of falling in a fertilizer solution, and to compare the final soil column height to determine the fertilizer loosening effect; the above method has a simple operation process, a reasonable design, is convenient for observation and recording, the measurement results are intuitive, the cost is low and it is easy to carry; at the same time, the utility model is also designed with a detachable funnel screen 2 to facilitate the smooth pouring of soil particles into the cylinder, and at the same time, the soil particles are screened to avoid the uneven size of soil particles affecting the height of the soil column; by designing a detachable upper cylinder cover, it is possible to avoid the material from falling during the full mixing process and affecting the final observation result; the above transparent material can be conventional materials such as transparent glass and transparent plastic.

[0030] Furthermore, the detachable funnel screen member 2 is a funnel-shaped structure with a large diameter at the top and a small diameter at the bottom, and is provided with a filter screen 5 for screening the soil. The above arrangement enables the soil to fall under its own gravity and be filtered to avoid the uneven size of soil particles affecting the height of the soil column.

[0031] Furthermore, the upper diameter of the detachable funnel screen member 2 is larger than the diameter of the top outer wall of the cylinder 1, the lower diameter of the detachable funnel screen member 2 is smaller than the diameter of the top inner wall of the cylinder 1, and the lower length of the detachable funnel screen member 2 is 3 to 4 cm. Through the above arrangement, the lower part of the detachable funnel screen member 2 can be inserted into the cylinder 1 to achieve a stable structure and achieve the purpose of single-person operation. At the same time, it can prevent soil particles from entering the cylinder 1, and soil from remaining at the cylinder mouth wall of the cylinder 1, which causes the detachable upper cylinder cover 3 and the cylinder 1 to be loosely sealed in the subsequent process, causing leakage.

[0032] Furthermore, the filter 5 is arranged at the bottom of the detachable funnel screen 2. The above arrangement enables more soil particles to be retained in the detachable funnel screen 2, so as to facilitate the soil particles to enter the cylinder 1; it should be noted that the detachable funnel screen 2 described in the utility model means that it is detachable from the cylinder 1; and the filter 5 and the detachable funnel screen 2 are preferably an integrated structure.

[0033] Furthermore, the removable upper cylinder cover 3 is made of elastic material, and includes a cover plate 6 and a cylindrical protrusion 7 arranged on the lower surface of the cover plate 6, and the cylindrical protrusion 7 is adapted to the inner diameter of the cylinder body 1. The removable upper cylinder cover 3 described in the utility model means that it is in a detachable relationship with the cylinder body 1; the cylindrical protrusion 7 is adapted to the inner diameter of the cylinder body 1 to block the inlet of the cylinder body 1, and the cover plate 6 is arranged outside the cylinder body 1 to achieve the purpose of convenient installation and easy separation from the cylinder body 1.

[0034] Furthermore, the connection between the cover plate 6 and the cylindrical protrusion 7 is provided with an annular groove 8 adapted to the top end face of the cylinder 1. The annular groove 8 can be clamped on the annular wall of the top end face of the cylinder 1, thereby achieving a good sealing effect and preventing leakage.

[0035] Furthermore, the diameter of the cover plate 6 is larger than the diameter of the outer wall at the top of the cylinder 1, and the diameter of the cylindrical protrusion 7 is equal to the diameter of the inner wall at the top of the cylinder 1. Since the cover plate 6 and the cylindrical protrusion 7 are made of elastic materials, such as rubber and other conventional materials, the above arrangement can achieve a good sealing effect of the detachable upper cylinder cover 3 on the cylinder 1.

[0036] Furthermore, the cover plate 6 and the cylindrical protrusion 7 are an integrated structure.

[0037] Furthermore, the barrel 1 is a cylindrical structure with upper and lower openings, and a removable lower barrel cover 9 is provided at the bottom. The removable lower barrel cover 9 can be provided to facilitate cleaning and increase the weight of the lower part of the barrel 1 so that it can stand upright for later observation.

[0038] Furthermore, the removable lower barrel cover 9 has the same structure as the removable upper barrel cover 3. Preferably, the outer end surface of the cover plate 6 of the removable lower barrel cover 9 is provided with anti-slip grooves to prevent it from tipping over.

[0039] The working principle of the utility model is as follows: the transparent cylindrical barrel 1 is fixedly connected with the detachable lower barrel cover 9, and then a certain volume of clean water is added into the barrel 1 (it can be quantitatively measured according to the scale 4), and a quantitative fertilizer is continuously added to obtain a fertilizer solution after dissolution; the detachable funnel screen 2 is placed on the top opening of the barrel 1, and the weighed soil is added, and a certain volume of clean water is continuously added to wash the soil particles remaining on the detachable funnel screen 2 into the barrel 1, and the detachable funnel screen 2 is removed, and the detachable upper barrel cover 3 is covered. After all the above operations are completed, the treatment device is obtained. A control device is also taken. The difference between the control device and the treatment device is that the fertilizer is replaced with an equal amount of clean water, and the other operations are exactly the same. At the same time, the treatment device and the control device are shaken to mix the soil particles with water or fertilizer solution, and then allowed to stand. Compared with the control, by observing the state of the falling process of the soil particles in the two devices, it can be judged whether the soil particles have undergone flocculation and agglomeration changes. After the soil has completely settled, the porosity of the soil can be determined by comparing the heights of the soil columns in the two devices (the higher the soil column height, the larger the soil volume; the larger the volume of the same mass of soil, the greater the soil porosity); these two aspects can be used to comprehensively determine whether the fertilizer has a soil loosening effect. It is easy to operate, simple in structure, reasonably designed and easy to carry.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A test device for observing the soil loosening effect of fertilizer, characterized in that: The test device includes: at least one cylinder (1) for containing fertilizer and soil, A detachable funnel screen member (2) adapted to the top opening of the cylinder (1); and a detachable upper cylinder cover (3) adapted to the top opening of the cylinder (1); The cylinder (1) is made of a transparent material, and the outer surface of the transparent cylinder (1) is provided with scales (4) for easy observation.

2. A test device for observing the soil loosening effect of fertilizer according to claim 1, characterized in that: The detachable funnel screen element (2) is a funnel-shaped structure with a large diameter at the upper part and a small diameter at the lower part, and a filter screen (5) for screening soil is arranged inside the funnel.

3. A test device for observing the soil loosening effect of fertilizer according to claim 2, characterized in that: The upper diameter of the detachable funnel screen component (2) is larger than the diameter of the top outer wall of the cylinder (1), the lower diameter of the detachable funnel screen component (2) is smaller than the diameter of the top inner wall of the cylinder (1), and the lower length of the detachable funnel screen component (2) is 3 to 4 cm.

4. A test device for observing the soil loosening effect of fertilizer according to claim 2, characterized in that: The filter screen (5) is arranged at the bottom of the detachable funnel screen member (2).

5. A test device for observing the soil loosening effect of fertilizer according to claim 1, characterized in that: The detachable upper cylinder cover (3) is made of elastic material, and comprises a cover plate (6) and a cylindrical protrusion (7) arranged on the lower surface of the cover plate (6), and the cylindrical protrusion (7) is adapted to the inner diameter of the cylinder body (1).

6. A test device for observing the soil loosening effect of fertilizer according to claim 5, characterized in that: An annular groove (8) adapted to the top end surface of the cylinder body (1) is provided at the connection between the cover plate (6) and the cylindrical protrusion (7).

7. A test device for observing the soil loosening effect of fertilizer according to claim 5, characterized in that: The diameter of the cover plate (6) is greater than the diameter of the outer wall at the top of the cylinder (1), and the diameter of the cylindrical protrusion (7) is equal to the diameter of the inner wall at the top of the cylinder (1).

8. The test device for observing the soil loosening effect of fertilizer according to claim 5, characterized in that: The cover plate (6) and the cylindrical protrusion (7) are an integrated structure.

9. A test device for observing the soil loosening effect of fertilizer according to any one of claims 1 to 8, characterized in that: The cylinder body (1) is a cylindrical structure with upper and lower openings, and a detachable lower cylinder cover (9) is provided at the bottom.

10. A test device for observing the soil loosening effect of fertilizer according to claim 9, characterized in that: The detachable lower cylinder cover (9) and the detachable upper cylinder cover (3) have the same structure.

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